Bandwidth Inc. — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Bandwidth Inc. (BAND)
CIK: 0001514416
Period of Report: 2026-02-28

Reporting Person: Ross Kade (Chief Information Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-28	Class A Common Stock	M	446	—	Acquired	89268	Direct
2026-02-28	Class A Common Stock	M	3392	—	Acquired	92660	Direct
2026-02-28	Class A Common Stock	M	1853	—	Acquired	94513	Direct
2026-02-28	Class A Common Stock	F	1619	$14.82	Disposed	92894	Direct
2026-03-02	Class A Common Stock	S	19000	$14.9441	Disposed	73894	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-28	Restricted Stock Units	$	M	446	Disposed		Class A Common Stock (446)	Direct
2026-02-28	Restricted Stock Units	$	M	3392	Disposed		Class A Common Stock (3392)	Direct
2026-02-28	Restricted Stock Units	$	M	1853	Disposed		Class A Common Stock (1853)	Direct

Footnotes

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

F2: 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.

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

F4: On August 28, 2023, the Reporting Person was granted 5,353 Restricted Stock Units, one third of which vested on the first anniversary of the date of grant and the remaining shares vest in eight quarterly installments beginning on November 28, 2024.

F5: On November 28, 2023, the Reporting Person was granted 40,697 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.

F6: On November 28, 2024, the Reporting Person was granted 22,238 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.