Edwards Jeffrey W.

SEC source: 0001628280-26-061572 · wk-form4_1789158791.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,803

F1 · kind: Gift to a charitable organization.

SEC source: 0001628280-26-026313 · wk-form4_1776803668.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,303

F1 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 26,799 shares of restricted stock pursuant to the 2023 Omnibus Incentive Plan.

SEC source: 0001628280-26-014669 · wk-form4_1772660274.xml · derivative · entry 8

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

IBP Holding Co · CIK 0001610199 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 125,000

Underlying: Common Stock · 125,000 shares

Expires not disclosed

F5 · derivative.exercise_price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · derivative.exercise_price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · derivative.exercise_price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · derivative.exercise_price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · kind: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · kind: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · kind: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · kind: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F10 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F10 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F11 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-26-014669 · wk-form4_1772660274.xml · derivative · entry 7

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

IBP Holding Co · CIK 0001610199 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 125,000 shares

Expires not disclosed

F5 · derivative.exercise_price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · derivative.exercise_price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · derivative.exercise_price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · derivative.exercise_price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · kind: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · kind: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · kind: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · kind: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F10 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F10 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F11 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-26-014669 · wk-form4_1772660274.xml · derivative · entry 6

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

IBP Holding Co · CIK 0001610199 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 225,000

Underlying: Common Stock · 225,000 shares

Expires not disclosed

F5 · derivative.exercise_price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · derivative.exercise_price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · derivative.exercise_price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · derivative.exercise_price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · kind: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · kind: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · kind: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · kind: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F10 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F10 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F11 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-26-014669 · wk-form4_1772660274.xml · derivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

IBP Holding Co · CIK 0001610199 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 225,000 shares

Expires not disclosed

F5 · derivative.exercise_price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · derivative.exercise_price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · derivative.exercise_price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · derivative.exercise_price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · kind: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · kind: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · kind: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · kind: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F5 · price: As previously reported, IBS entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 10 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F6 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract and the May 2024 forward sale contract. On March 3, 2026, IBS and the buyer entered into a second amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively the "2026 Amendment Agreements"). The reference price for the 2026 Amendment Agreements was $314.06. The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027,

F7 · price: (Continued from footnote 6) (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustment for the number of shares to be delivered on the respective settlement date for each component. The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the range of settlement dates for the components from March 9, 2026 through March 13, 2026 to the new settlement dates from May 24, 2027 through June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 5 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F8 · price: (Continued from footnote 7) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $314.06 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F9 · price: (Continued from footnote 8) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $376.872 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F10 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F10 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 through June 4, 2027 under the 2026 Amendment Agreements.

F11 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-26-014669 · wk-form4_1772660274.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

IBP Holding Co · CIK 0001610199 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,727,819

F1 · price: PJAM IBP Holdings, Inc. ("PJAM") sold 400,000 shares of common stock of Installed Building Products, Inc. through a block trade pursuant to Rule 144 under the Securities Act of 1933, as amended.

F2 · ownership.nature: These securities are held directly by PJAM. The Reporting Persons disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001628280-26-012338 · wk-form4_1772141417.xml · nonDerivative · entry 2

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 207,517

F2 · shares: Represents performance-based restricted shares granted to the Reporting Person under the Issuer's 2023 Omnibus Incentive Plan. The Issuer's Compensation & Human Capital Committee certified the achievement of the performance criteria for fiscal year 2025 on February 24, 2026. The shares remain subject to a time-based vesting requirement and are scheduled to vest 100% on April 20, 2030.

SEC source: 0001628280-26-012338 · wk-form4_1772141417.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 207,048

F1 · shares: Represents performance-based restricted shares granted to the Reporting Person under the Issuer's 2023 Omnibus Incentive Plan. The Issuer's Compensation & Human Capital Committee certified the achievement of the performance criteria for fiscal year 2025 on February 24, 2026. The shares remain subject to a time-based vesting requirement and are scheduled to vest in two equal installments (rounded to the nearest whole share) on each of April 20, 2027 and April 20, 2028.

SEC source: 0001628280-25-053824 · wk-form4_1764019956.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

IBP Holding Co · CIK 0001610199 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,127,819

F1 · kind: Pursuant to the Issuer's previously announced stock buyback program, the Issuer entered into a Share Repurchase Agreement with PJAM IBP Holdings, Inc. ("PJAM") for the purchase of 150,000 shares of its common stock in a privately-negotiated transaction for an aggregate purchase price of $37,643,760. The repurchase was approved by the company's board of directors and is exempt from Section 16(b) by the virtue of Rule 16b-3(e).

F2 · ownership.nature: These securities are held directly by PJAM. The Reporting Persons, other than PJAM, disclaim beneficial ownership in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001598688-25-000010 · wk-form4_1756327003.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 183,660

F1 · kind: Gift to a charitable organization.

SEC source: 0001598688-25-000008 · wk-form4_1755723445.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

IBP Holding Co · CIK 0001610199 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,277,819

F1 · kind: Pursuant to the Issuer's previously announced stock buyback program, the Issuer entered into a Share Repurchase Agreement with PJAM IBP Holdings, Inc. ("PJAM") for the purchase of 200,000 shares of its common stock in a privately-negotiated transaction for an aggregate purchase price of $51,476,000. The repurchase was approved by the company's board of directors and is exempt from Section 16(b) by the virtue of Rule 16b-3(e). IBP Holding Company is the sole shareholder of PJAM.

F2 · ownership.nature: These securities are held directly by PJAM. The Reporting Persons, other than PJAM, disclaim beneficial ownership in the reported securities except to the extent of his or its pecuniary interest therein.

SEC source: 0000950170-25-108997 · ownership.xml · derivative · entry 8

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 125,000

Underlying: Common Stock · 125,000 shares

Expires not disclosed

F4 · derivative.exercise_price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · derivative.exercise_price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · derivative.exercise_price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · derivative.exercise_price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · kind: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · kind: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · kind: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · kind: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F9 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F10 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-25-108997 · ownership.xml · derivative · entry 7

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 125,000 shares

Expires not disclosed

F4 · derivative.exercise_price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · derivative.exercise_price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · derivative.exercise_price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · derivative.exercise_price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · kind: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · kind: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · kind: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · kind: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F9 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F10 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-25-108997 · ownership.xml · derivative · entry 6

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 225,000

Underlying: Common Stock · 225,000 shares

Expires not disclosed

F4 · derivative.exercise_price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · derivative.exercise_price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · derivative.exercise_price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · derivative.exercise_price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · kind: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · kind: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · kind: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · kind: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F9 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F10 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-25-108997 · ownership.xml · derivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · see footnote

Disclosed balance after: 0

Underlying: Common Stock · 225,000 shares

Expires not disclosed

F4 · derivative.exercise_price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · derivative.exercise_price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · derivative.exercise_price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · derivative.exercise_price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · derivative.exercise_price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · kind: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · kind: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · kind: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · kind: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · kind: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · price: As previously reported, Installed Building Systems, Inc. ("IBS"), entered into two prepaid variable forward sale contracts on each of September 2023, November 2023 and May 2024 with an unaffiliated third party buyer. In each of the September and November transactions, IBS pledged 450,000 shares, or 225,000 shares per contract and 900,000 shares in the aggregate, and in the May transaction, IBS pledged 250,000 shares, or 125,000 shares per contract (collectively, the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock"). The Pledged Shares secure its obligations under the contracts, and IBS retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each component referred to in footnote 9 below, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · price: On August 12, 2025, IBS and the buyer entered into an amendment to the September 2023 forward sale contract (the "September Amendment Agreement") and the May 2024 forward sale contract (the "May Amendment Agreement" and collectively, the "Amendment Agreements"). The September Amendment Agreement amends certain terms of one of the forward sale contracts entered into in September 2023, covering 225,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from May 24, 2027 to June 4, 2027, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) increasing the number of components from 7 to 9, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F6 · price: (Continued from Footnote 5) The May Amendment Agreement amends certain terms of one of the forward sale contracts entered into in May 2024, covering 125,000 shares of Common Stock, including (i) extending the settlement dates for the components from August 14, 2025 to August 22, 2025 to the new settlement dates from November 16, 2026 to November 23, 2026, (ii) amending the Floor Price (as defined below) and the Cap Price (as defined below), and (iii) reducing the number of components from 7 to 6, with appropriate adjustments for the number of shares to be delivered on the respective settlement date for each component.

F7 · price: The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on such settlement date) under each Amendment Agreement is to be determined as follows: (a) if the VWAP of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $257.6320 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F8 · price: (Continued from Footnote 7) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $319.4637 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price; and (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to 100% of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F9 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from May 24, 2027 to June 4, 2027 under the September Amendment Agreement and November 16, 2026 to November 23, 2026 under the May Amendment Agreement.

F10 · ownership.nature: These securities are held directly by IBS. Mr. Edwards disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-25-056781 · ownership.xml · nonDerivative · entry 3

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 191,160

F2 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 33,882 shares of restricted stock pursuant to the 2014 Omnibus Incentive Plan.

SEC source: 0000950170-25-036356 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

IBP Holding Co · CIK 0001610199 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 2,477,819

F1 · kind: Pursuant to the Issuer's previously announced stock buyback program, the Issuer entered into a Share Repurchase Agreement with PJAM IBP Holdings, Inc. ("PJAM") for the purchase of 100,000 shares of its common stock in a privately-negotiated transaction for an aggregate purchase price of $16,875,000. The repurchase was approved by the company's board of directors and is exempt from Section 16(b) by virtue of Rule 16b-3(e). IBP Holding Company is the sole shareholder of PJAM.

F2 · ownership.nature: These securities are held directly by PJAM. The Reporting Persons, other than PJAM, disclaim beneficial ownership in the reported securities except to the extent of his or its pecuniary interest therein.

SEC source: 0000950170-25-029135 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 214,339

F1 · balance_after: Represents performance-based restricted shares granted to the Reporting Person under the Issuer's 2023 Omnibus Incentive Plan. The Issuer's Compensation & Human Capital Committee certified the achievement of the performance criteria for fiscal year 2024 on February 25, 2025. The shares remain subject to a time-based vesting requirement and are scheduled to vest in two equal installments (rounded to the nearest whole share) on each of April 20, 2026 and April 20, 2027.

SEC source: 0000950170-25-056781 · ownership.xml · nonDerivative · entry 2

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 205,339

F1 · shares: Gift to a charitable organization.

SEC source: 0000950170-25-056781 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 210,339

F1 · shares: Gift to a charitable organization.

SEC source: 0000950170-24-097619 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

IBP Holding Co · CIK 0001610199 · Director by Deputization

PJAM IBP Holdings, Inc. · CIK 0001609973 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,577,819

F1 · kind: Pursuant to the Issuer's previously announced stock buyback program, the Issuer entered into a Share Repurchase Agreement with PJAM IBP Holdings, Inc. ("PJAM") for the purchase of 100,000 shares of its common stock in a privately-negotiated transaction for an aggregate purchase price of $20,690,000. The repurchase was approved by the company's board of directors and is exempt from Section 16(b) by virtue of Rule 16b-3(e). IBP Holding Company is the sole shareholder of PJAM.

F2 · ownership.nature: These securities are held directly by PJAM. The Reporting Persons, other than PJAM, disclaims pecuniary interest in the reported securities except to the extent of his or its economic interest therein.

SEC source: 0000950170-24-067391 · ownership.xml · derivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 250,000

Underlying: Common Stock · 250,000 shares

Expires not disclosed

F4 · derivative.exercise_price: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 250,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 12 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · derivative.exercise_price: (Continued from Footnote 4) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the closing price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $195.2611 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component; (b) if such Settlement Price is greater than the Floor Price but less than or equal to $246.6456 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F6 · derivative.exercise_price: (Continued from Footnote 5) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price. In connection with the entry into the forward contracts, IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $42,777,596.

F4 · kind: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 250,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 12 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · kind: (Continued from Footnote 4) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the closing price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $195.2611 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component; (b) if such Settlement Price is greater than the Floor Price but less than or equal to $246.6456 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F6 · kind: (Continued from Footnote 5) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price. In connection with the entry into the forward contracts, IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $42,777,596.

F4 · price: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 250,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge. The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 12 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash.

F5 · price: (Continued from Footnote 4) The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the closing price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $195.2611 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component; (b) if such Settlement Price is greater than the Floor Price but less than or equal to $246.6456 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F6 · price: (Continued from Footnote 5) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price. In connection with the entry into the forward contracts, IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $42,777,596.

F7 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from August 14, 2025 to August 22, 2025 under one contract and from March 9, 2026 to March 13, 2026 under the other contract.

F7 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from August 14, 2025 to August 22, 2025 under one contract and from March 9, 2026 to March 13, 2026 under the other contract.

F8 · ownership.nature: These securities are held directly by IBS. The Reporting Person, other than IBS, disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-046953 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 195,703

F1 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 16,402 shares of restricted stock pursuant to the 2014 Omnibus Incentive Plan.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 14

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,416,194

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 13

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,416,596

F14 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $237.64 to $238.34. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 12

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,421,191

F13 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $236.62 to $237.49. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 11

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,429,306

F12 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $235.61 to $236.61. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 10

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,442,330

F11 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $234.60 to $235.60. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 9

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,452,580

F10 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $233.59 to $234.46. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 8

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,464,444

F9 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $242.805 to $243.18. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 7

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,465,744

F8 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $241.49 to $242.23. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 6

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,471,255

F7 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $240.48 to $241.39. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,473,804

F6 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $239.15 to $240.11. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 4

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,477,390

F5 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $238.14 to $239.14. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 3

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,501,125

F4 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $237.1281 to $238.03. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 2

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,506,805

F3 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $236.11 to $237.1067. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-028123 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,509,130

F1 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $235.00 to $235.64. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by Installed Building Systems, Inc. The Reporting Person, other than Installed Building Systems, Inc., disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-018970 · ownership.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 203,141

F1 · shares: Represents performance-based restricted shares granted to the Reporting Person under the Issuer's 2014 Omnibus Incentive Plan. The Issuer's Compensation & Human Capital Committee certified the achievement of the performance criteria for fiscal year 2023 on February 20, 2024. The shares remain subject to a time-based vesting requirement and are scheduled to vest in two equal installments (rounded to the nearest whole share) on each of April 20, 2025 and April 20, 2026.

SEC source: 0001209191-23-058800 · doc4.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 168,178

F1 · shares: Gift to a charitable organization.

SEC source: 0001209191-23-056323 · doc4.xml · derivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 450,000

Underlying: Common Stock · 450,000 shares

Expires not disclosed

F4 · derivative.exercise_price: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 450,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge.

F5 · derivative.exercise_price: The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 15 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash. The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $131.9962 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F6 · derivative.exercise_price: (Continued from Footnote 5) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $166.7321 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F7 · derivative.exercise_price: (Continued from Footnote 6) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F8 · derivative.exercise_price: In connection with the entry into the forward contracts described in Footnote (4), IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $48,769,133. Such amount was determined based on the market value of the Common Stock on November 20, 2023.

F4 · kind: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 450,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge.

F5 · kind: The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 15 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash. The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $131.9962 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F6 · kind: (Continued from Footnote 5) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $166.7321 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F7 · kind: (Continued from Footnote 6) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F8 · kind: In connection with the entry into the forward contracts described in Footnote (4), IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $48,769,133. Such amount was determined based on the market value of the Common Stock on November 20, 2023.

F4 · price: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 450,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge.

F5 · price: The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 15 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash. The number of shares of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $131.9962 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F6 · price: (Continued from Footnote 5) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $166.7321 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F7 · price: (Continued from Footnote 6) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F8 · price: In connection with the entry into the forward contracts described in Footnote (4), IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $48,769,133. Such amount was determined based on the market value of the Common Stock on November 20, 2023.

F9 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from November 16, 2026 to November 23, 2026 under one contract and from May 24, 2027 to June 4, 2027 under the other contract.

F9 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components occur from November 16, 2026 to November 23, 2026 under one contract and from May 24, 2027 to June 4, 2027 under the other contract.

F10 · ownership.nature: These securities are held directly by IBS. The Reporting Person, other than IBS, disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-23-049604 · doc4.xml · derivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

Installed Building Systems, Inc. · CIK 0001609975 · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 450,000

Underlying: Common Stock · 450,000 shares

Expires not disclosed

F4 · derivative.exercise_price: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 450,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge.

F5 · derivative.exercise_price: The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 12 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash. The number of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the closing price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $120.9623 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F6 · derivative.exercise_price: (Continued from Footnote 2) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $152.7944 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F7 · derivative.exercise_price: (Continued from Footnote 3) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F8 · derivative.exercise_price: In connection with the entry into the forward contracts described in Footnote (2), IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $46,869,694. Such amount was determined based on the market value of the Common Stock on September 13, 2023.

F4 · kind: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 450,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge.

F5 · kind: The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 12 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash. The number of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the closing price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $120.9623 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F6 · kind: (Continued from Footnote 2) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $152.7944 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F7 · kind: (Continued from Footnote 3) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F8 · kind: In connection with the entry into the forward contracts described in Footnote (2), IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $46,869,694. Such amount was determined based on the market value of the Common Stock on September 13, 2023.

F4 · price: IBS entered into two prepaid variable forward sale contracts with an unaffiliated third party buyer. IBS pledged an aggregate of 450,000 shares (the "Pledged Shares") of Installed Building Products, Inc. common stock ("Common Stock") to secure its obligations under the contracts, and retained dividend and voting rights in the Pledged Shares during the term of the pledge.

F5 · price: The contracts obligate IBS to deliver to the buyer, on the applicable settlement date for each of the 12 components, up to one hundred percent (100%) of the number of Pledged Shares for such component or, at IBS' option, an equivalent amount of cash. The number of Common Stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the closing price of the Common Stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $120.9623 (the "Floor Price"), IBS will deliver to the buyer all of the Pledged Shares for the applicable component;

F6 · price: (Continued from Footnote 2) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $152.7944 (the "Cap Price"), IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F7 · price: (Continued from Footnote 3) (c) if such Settlement Price is greater than the Cap Price, IBS will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F8 · price: In connection with the entry into the forward contracts described in Footnote (2), IBS is entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $46,869,694. Such amount was determined based on the market value of the Common Stock on September 13, 2023.

F9 · derivative.exercise_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components, occurs from August 14, 2025 to August 22, 2025 under one contract and from March 9, 2026 to March 13, 2026 under the other contract.

F9 · derivative.expiration_date: Each component is exercisable on the same date as it expires, and the expiration dates for the components, occurs from August 14, 2025 to August 22, 2025 under one contract and from March 9, 2026 to March 13, 2026 under the other contract.

F10 · ownership.nature: These securities are held directly by IBS. The Reporting Person, other than IBS, disclaims pecuniary interest in the reported securities except to the extent of his economic interest therein.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 7

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,677,819

F7 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $118.52 to $119.19. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 6

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,679,931

F6 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $117.29 to $118.27. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 5

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,708,310

F5 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $116.26 to $117.21. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 4

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,747,819

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 3

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,747,919

F4 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $120.28 to $121.2750. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 2

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,760,261

F3 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $119.27 to $120.27. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-036363 · doc4.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

PJAM IBP Holdings, Inc. · CIK 0001609973 · 10% owner · Director by Deputization

IBP Holding Co · CIK 0001610199 · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,777,372

F1 · price: The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $118.26 to $119.26. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: These securities are held directly by PJAM IBP Holdings, Inc. ("PJAM"). The Reporting Persons, other than PJAM, disclaim pecuniary interest in the reported securities except to the extent of his or its pecuniary interest therein. IBP Holding Company is the sole shareholder of PJAM.

SEC source: 0001209191-23-018934 · doc4.xml · nonDerivative · entry 1

Edwards Jeffrey W. · CIK 0001598688 · Director · President, CEO and Chairman · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,181

F1 · shares: Gift to a charitable organization.