Bandwidth Inc. — Director's Dealing 2025

Mar 25, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Bandwidth Inc. (BAND)
CIK: 0001514416
Period of Report: 2025-03-21

Reporting Person: Krupka Devin M (Controller, PAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-21	Class A Common Stock	M	1842	—	Acquired	21030	Direct
2025-03-24	Class A Common Stock	S	544	$15.1826	Disposed	20486	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-21	Restricted Stock Units	$	M	1842	Disposed		Class A Common Stock (1842)	Direct

Footnotes

F1: Reflects shares sold to cover taxes upon the vesting of Restricted Stock Units on March 21, 2025, pursuant to a Rule 10b5-1 instruction letter adopted by the Reporting Person on May 5, 2023 related solely to tax obligations associated with awards received in connection with Bandwidth Inc. (the "Company") equity compensation programs.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.16 to $15.21. 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.

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

F4: On March 21, 2022, the Reporting Person was granted 7,368 Restricted Stock Units, which vest in four equal annual installments beginning on March 21, 2023.