BAND

SEC source: 0001721962-26-000013 · wk-form4_1780346453.xml · derivative · entry 7

Morken David A. · CIK 0001721962 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,617

Underlying: Class A Common Stock · 4,103 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.

F5 · derivative.exercise_date: On November 28, 2024, the Reporting Person was granted 49,234 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2026.

F5 · derivative.expiration_date: On November 28, 2024, the Reporting Person was granted 49,234 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2026.

SEC source: 0001721962-26-000013 · wk-form4_1780346453.xml · derivative · entry 6

Morken David A. · CIK 0001721962 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,454

Underlying: Class A Common Stock · 7,727 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.

F4 · derivative.exercise_date: On November 28, 2023, the Reporting Person was granted 92,725 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2025.

F4 · derivative.expiration_date: On November 28, 2023, the Reporting Person was granted 92,725 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2025.

SEC source: 0001721962-26-000013 · wk-form4_1780346453.xml · nonDerivative · entry 2

Morken David A. · CIK 0001721962 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,830

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001721962-26-000013 · wk-form4_1780346453.xml · nonDerivative · entry 1

Morken David A. · CIK 0001721962 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,727

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001575505-26-000004 · wk-form4_1780346141.xml · derivative · entry 2

Bailey Brian D. · CIK 0001575505 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,666

Underlying: Class A Common Stock · 3,334 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F5 · derivative.exercise_date: On November 28, 2025, the Reporting Person was granted 13,333 Restricted Stock Units, which vest in four equal quarterly installments beginning on February 28, 2026.

F5 · derivative.expiration_date: On November 28, 2025, the Reporting Person was granted 13,333 Restricted Stock Units, which vest in four equal quarterly installments beginning on February 28, 2026.

SEC source: 0001575505-26-000004 · wk-form4_1780346141.xml · nonDerivative · entry 1

Bailey Brian D. · CIK 0001575505 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 72,089

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.nature: Carmichael Bandwidth LLC is the managing member of each of Carmichael Partners, LLC ("CP"); Carmichael Investment Partners II, LLC ("CP II"); and Carmichael Investment Partners III, LLC ("CP III"). Brian D. Bailey and Kevin J. Martin are the managing partners of Carmichael Bandwidth LLC and CP and share voting and dispositive power with respect to the shares held by CP, CP II and CP III. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein.

F2 · ownership.nature: Following the transactions reported herein, consists of 8,750 shares of Class A Common Stock held by CP and 63,339 shares of Class A Common Stock held of record by Brian D. Bailey.

F3 · ownership.nature: Pursuant to an agreement between Mr. Bailey and CP, CP is entitled to all economic benefit with respect to 7,234 shares held by Mr. Bailey.

SEC source: 0001527937-26-000004 · wk-form4_1780346219.xml · derivative · entry 2

Suriano Douglas A · CIK 0001527937 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,666

Underlying: Class A Common Stock · 3,334 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F2 · derivative.exercise_date: On November 28, 2025, the Reporting Person was granted 13,333 Restricted Stock Units, which vest in four equal quarterly installments beginning on February 28, 2026.

F2 · derivative.expiration_date: On November 28, 2025, the Reporting Person was granted 13,333 Restricted Stock Units, which vest in four equal quarterly installments beginning on February 28, 2026.

SEC source: 0001527937-26-000004 · wk-form4_1780346219.xml · nonDerivative · entry 1

Suriano Douglas A · CIK 0001527937 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,077

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0002029692-26-000016 · wk-form4_1779394647.xml · nonDerivative · entry 1

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,414

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.00 to $57.98. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0002029692-26-000012 · wk-form4_1778791295.xml · nonDerivative · entry 2

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,414

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.00 to $52.505. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0002029692-26-000012 · wk-form4_1778791295.xml · nonDerivative · entry 1

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,665

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.01 to $52.40. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001804735-26-000019 · wk-form4_1778702974.xml · nonDerivative · entry 1

Bottorff Rebecca · CIK 0001804735 · Director · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.40 to $49.75. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000010 · wk-form4_1778616392.xml · nonDerivative · entry 3

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,894

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.14 to $52.95. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000010 · wk-form4_1778616392.xml · nonDerivative · entry 2

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,604

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.02 to $52.01. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000010 · wk-form4_1778616392.xml · nonDerivative · entry 1

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,394

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.00 to $50.98. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0002029692-26-000008 · wk-form4_1778011882.xml · nonDerivative · entry 2

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,414

F2 · shares: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.065 to $45.95. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001967808-26-000014 · wk-form4_1778012196.xml · nonDerivative · entry 2

Krupka Devin M · CIK 0001967808 · Controller, PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,276

SEC source: 0001967808-26-000014 · wk-form4_1778012196.xml · nonDerivative · entry 1

Krupka Devin M · CIK 0001967808 · Controller, PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,609

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.0377 to $46.04. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001758209-26-000007 · wk-form4_1778097980.xml · nonDerivative · entry 1

Roush Lukas M. · CIK 0001758209 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,602

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.20 to $47.90. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001804735-26-000012 · wk-form4_1777925286.xml · nonDerivative · entry 1

Bottorff Rebecca · CIK 0001804735 · Director · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,535

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.01 to $45.94. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0002029692-26-000008 · wk-form4_1778011882.xml · nonDerivative · entry 1

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,156

F1 · shares: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.03. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001842470-26-000014 · wk-form4_1778012138.xml · nonDerivative · entry 1

Asbill Richard Brandon · CIK 0001842470 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,613

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.00 to $44.785. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000008 · wk-form4_1777666314.xml · nonDerivative · entry 3

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 63,894

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.45 to $33.58. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000008 · wk-form4_1777666314.xml · nonDerivative · entry 2

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 65,394

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.34 to $32.88. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000008 · wk-form4_1777666314.xml · nonDerivative · entry 1

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,794

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

SEC source: 0001405026-26-000030 · wk-form4_1776456367.xml · nonDerivative · entry 1

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,605

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 3, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.02. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001967808-26-000012 · wk-form4_1774296284.xml · derivative · entry 3

Krupka Devin M · CIK 0001967808 · Controller, PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,842 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F2 · derivative.exercise_date: On March 21, 2022, the Reporting Person was granted 7,368 Restricted Stock Units, which vested in four equal annual installments beginning on March 21, 2023.

F2 · derivative.expiration_date: On March 21, 2022, the Reporting Person was granted 7,368 Restricted Stock Units, which vested in four equal annual installments beginning on March 21, 2023.

SEC source: 0001967808-26-000012 · wk-form4_1774296284.xml · nonDerivative · entry 2

Krupka Devin M · CIK 0001967808 · Controller, PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,053

SEC source: 0001967808-26-000012 · wk-form4_1774296284.xml · nonDerivative · entry 1

Krupka Devin M · CIK 0001967808 · Controller, PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,577

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001405026-26-000022 · wk-form4_1773691522.xml · nonDerivative · entry 2

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,645

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.08 to $15.4550. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000022 · wk-form4_1773691522.xml · nonDerivative · entry 1

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,745

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.26 to $15.64. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000018 · wk-form4_1773346255.xml · nonDerivative · entry 2

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,771

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.33 to $16.17. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000018 · wk-form4_1773346255.xml · nonDerivative · entry 1

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,578

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.04 to $16.54. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000016 · wk-form4_1773173292.xml · nonDerivative · entry 2

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,578

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.15 to $16.64. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000016 · wk-form4_1773173292.xml · nonDerivative · entry 1

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,546

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.02 to $16.52. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001721962-26-000009 · wk-form4_1773173259.xml · nonDerivative · entry 1

Morken David A. · CIK 0001721962 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: This transaction involved the Reporting Person's gift of shares of Bandwidth Inc. Class A Common Stock to an irrevocable trust for which he does not exercise or share voting or investment control. The Reporting Person disclaims beneficial ownership of the securities held by the trust, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner for the purposes of Section 16 or for any other purpose.

SEC source: 0001405026-26-000014 · wk-form4_1772831308.xml · nonDerivative · entry 4

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 106,446

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.12 to $16.24. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001967808-26-000008 · wk-form4_1772658401.xml · nonDerivative · entry 1

Krupka Devin M · CIK 0001967808 · Controller, PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,735

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.33 to $15.78. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001842470-26-000010 · wk-form4_1772658366.xml · nonDerivative · entry 1

Asbill Richard Brandon · CIK 0001842470 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,613

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.23 to $15.67. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001804735-26-000010 · wk-form4_1772658339.xml · nonDerivative · entry 1

Bottorff Rebecca · CIK 0001804735 · Director · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,960

SEC source: 0001405026-26-000014 · wk-form4_1772831308.xml · nonDerivative · entry 3

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 111,546

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.61 to $16.60. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000014 · wk-form4_1772831308.xml · nonDerivative · entry 2

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,346

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 3, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.36 to $16.58. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000014 · wk-form4_1772831308.xml · nonDerivative · entry 1

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,702

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 3, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.36 to $16.35. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001807759-26-000006 · wk-form4_1772572147.xml · nonDerivative · entry 5

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,894

F1 · kind: Reflects shares sold pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 24, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.51 to $15.22. The Reporting Person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001405026-26-000008 · wk-form4_1772572118.xml · derivative · entry 8

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,602

Underlying: Class A Common Stock · 10,602 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F4 · derivative.exercise_date: On May 30, 2023, the Reporting Person was granted 127,226 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on August 30, 2024.

F4 · derivative.expiration_date: On May 30, 2023, the Reporting Person was granted 127,226 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on August 30, 2024.

SEC source: 0001405026-26-000008 · wk-form4_1772572118.xml · nonDerivative · entry 5

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,403

SEC source: 0001405026-26-000008 · wk-form4_1772572118.xml · nonDerivative · entry 4

Raiford Daryl E · CIK 0001405026 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,985

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0002029692-26-000004 · wk-form4_1772486887.xml · derivative · entry 7

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,745

Underlying: Class A Common Stock · 20,872 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F4 · derivative.exercise_date: On February 28, 2025, the Reporting Person was granted 62,617 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares will vest in eight equal quarterly installments beginning on May 28, 2026.

F4 · derivative.expiration_date: On February 28, 2025, the Reporting Person was granted 62,617 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares will vest in eight equal quarterly installments beginning on May 28, 2026.

SEC source: 0002029692-26-000004 · wk-form4_1772486887.xml · derivative · entry 6

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,597

Underlying: Class A Common Stock · 2,085 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F3 · derivative.exercise_date: On November 28, 2024, the Reporting Person was granted 25,023 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2026.

F3 · derivative.expiration_date: On November 28, 2024, the Reporting Person was granted 25,023 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2026.

SEC source: 0002029692-26-000004 · wk-form4_1772486887.xml · derivative · entry 5

Agarwal Devesh · CIK 0002029692 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,782

Underlying: Class A Common Stock · 3,927 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Bandwidth Inc. Class A Common Stock.

F2 · derivative.exercise_date: On November 28, 2023, the Reporting Person was granted 47,127 RSUs, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2025.

F2 · derivative.expiration_date: On November 28, 2023, the Reporting Person was granted 47,127 RSUs, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight equal quarterly installments beginning on February 28, 2025.