IBP

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: 0001628280-26-012344 · wk-form4_1772141544.xml · nonDerivative · entry 2

Wheeler Brad A · CIK 0002005602 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,188

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: 0001628280-26-012344 · wk-form4_1772141544.xml · nonDerivative · entry 1

Wheeler Brad A · CIK 0002005602 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,719

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: 0001628280-26-012342 · wk-form4_1772141495.xml · nonDerivative · entry 1

FRY TODD R · CIK 0001234942 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,453

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: 0001628280-26-012343 · wk-form4_1772141518.xml · nonDerivative · entry 2

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,180

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: 0001628280-26-012343 · wk-form4_1772141518.xml · nonDerivative · entry 1

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,711

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: 0001628280-26-012341 · wk-form4_1772141472.xml · nonDerivative · entry 2

Niswonger Jason R · CIK 0001696709 · Chief Admin. & Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,073

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: 0001628280-26-012341 · wk-form4_1772141472.xml · nonDerivative · entry 1

Niswonger Jason R · CIK 0001696709 · Chief Admin. & Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,604

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: 0001628280-26-012340 · wk-form4_1772141450.xml · nonDerivative · entry 1

HIRE WILLIAM JEFFREY · CIK 0001732519 · President of External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,767

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: 0001628280-26-012338 · 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: 0001628280-25-055056 · wk-form4_1764797344.xml · nonDerivative · entry 1

Jackson Janet E. · CIK 0001599712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,783

F1 · kind: Gift to a charitable organization.

SEC source: 0001628280-25-054465 · wk-form4_1764624695.xml · nonDerivative · entry 1

THOMAS MICHAEL H · CIK 0001251260 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,373

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 $268.242 to $268.74. 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.

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: 0001628280-25-051072 · wk-form4_1762809801.xml · nonDerivative · entry 2

HIRE WILLIAM JEFFREY · CIK 0001732519 · President of External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,999

SEC source: 0001628280-25-051072 · wk-form4_1762809801.xml · nonDerivative · entry 1

HIRE WILLIAM JEFFREY · CIK 0001732519 · President of External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,099

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 $251 to $251.970. 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.

SEC source: 0001598873-25-000003 · wk-form4_1757709040.xml · nonDerivative · entry 1

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 31,420

F1 · kind: Reflects the gift of common stock to a charitable fund.

F2 · ownership.nature: These shares are held by a trust of which Mr. Miller is the sole trustee and sole beneficiary and exercises sole voting and investment power.

SEC source: 0001599712-25-000013 · wk-form4_1757536071.xml · nonDerivative · entry 1

Jackson Janet E. · CIK 0001599712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,793

F1 · kind: Gift to a charitable organization.

SEC source: 0001599712-25-000011 · wk-form4_1756500070.xml · nonDerivative · entry 1

Jackson Janet E. · CIK 0001599712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,803

F1 · kind: Gift to a charitable organization.

SEC source: 0002005602-25-000003 · wk-form4_1756327038.xml · nonDerivative · entry 1

Wheeler Brad A · CIK 0002005602 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,736

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: 0001599712-25-000009 · wk-form4_1756240715.xml · nonDerivative · entry 2

Jackson Janet E. · CIK 0001599712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,813

F1 · kind: Gift to charitable organizations.

SEC source: 0001599712-25-000009 · wk-form4_1756240715.xml · nonDerivative · entry 1

Jackson Janet E. · CIK 0001599712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,873

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: 0001732519-25-000004 · wk-form4_1755290042.xml · nonDerivative · entry 2

HIRE WILLIAM JEFFREY · CIK 0001732519 · President of External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,999

SEC source: 0001732519-25-000004 · wk-form4_1755290042.xml · nonDerivative · entry 1

HIRE WILLIAM JEFFREY · CIK 0001732519 · President of External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,365

F1 · price: The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $266.195 to $266.2775. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a securityholder of the issuer, full information regarding the number of shares purchased at each separate price.

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: 0001580905-25-000026 · wk-form4_1755117457.xml · nonDerivative · entry 1

FRY TODD R · CIK 0001234942 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,822

SEC source: 0000950170-25-076369 · ownership.xml · nonDerivative · entry 1

Carter Margot Lebenberg · CIK 0001018430 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,413

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-076367 · ownership.xml · nonDerivative · entry 1

Hilsheimer Lawrence A. · CIK 0001414433 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,023

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-076364 · ownership.xml · nonDerivative · entry 1

MEUSE DAVID R · CIK 0001223829 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,747

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-076366 · ownership.xml · nonDerivative · entry 1

SCHOTTENSTEIN ROBERT H · CIK 0001204731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,277

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-076365 · ownership.xml · nonDerivative · entry 1

THOMAS MICHAEL H · CIK 0001251260 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,374

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-076362 · ownership.xml · nonDerivative · entry 1

Jackson Janet E. · CIK 0001599712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,342

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-076363 · ownership.xml · nonDerivative · entry 1

Moore Marchelle E · CIK 0001976215 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,307

F1 · shares: The restricted stock shall vest on the earlier to occur of (i) the one year anniversary of the grant date, (ii) immediately prior to the first annual meeting of the Company's stockholders occurring after the grant date or (iii) the director's death, subject in the cases of (i) and (ii) to such director's continued service as a member of the board of directors from the grant date through the vesting date. The date of grant of the restricted stock was May 20, 2025.

SEC source: 0000950170-25-074396 · ownership.xml · nonDerivative · entry 5

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,314

F5 · price: The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $166.92 to $167.16. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a securityholder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0000950170-25-074396 · ownership.xml · nonDerivative · entry 4

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,014

F4 · price: The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $165.76 to $166.70. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a securityholder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0000950170-25-074396 · ownership.xml · nonDerivative · entry 3

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,867

F3 · price: The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $164.85 to $165.68. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a securityholder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0000950170-25-074396 · ownership.xml · nonDerivative · entry 2

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,564

F2 · price: The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $163.68 to $164.29. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a securityholder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0000950170-25-074396 · ownership.xml · nonDerivative · entry 1

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,964

F1 · price: The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $162.60 to $163.60. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer or a securityholder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0000950170-25-056783 · ownership.xml · nonDerivative · entry 1

FRY TODD R · CIK 0001234942 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,322

F1 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 2,073 shares of restricted stock pursuant to the 2014 Omnibus Incentive Plan.

SEC source: 0000950170-25-056786 · ownership.xml · nonDerivative · entry 1

HIRE WILLIAM JEFFREY · CIK 0001732519 · President of External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,499

F1 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 2,307 shares of restricted stock pursuant to the 2014 Omnibus Incentive Plan.

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: 0000950170-25-056784 · ownership.xml · nonDerivative · entry 1

Miller Michael Thomas · CIK 0001598873 · Director · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,564

F1 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 10,908 shares of restricted stock pursuant to the 2014 Omnibus Incentive Plan.

SEC source: 0000950170-25-056782 · ownership.xml · nonDerivative · entry 1

Niswonger Jason R · CIK 0001696709 · Chief Admin & Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,476

F1 · shares: Represents shares withheld to satisfy tax withholding obligation on vesting of 3,522 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.