Bandwidth Inc. — Director's Dealing 2026

Mar 2, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

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

Reporting Person: Krupka Devin M (Controller, PAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-28	Class A Common Stock	M	2775	—	Acquired	35049	Direct
2026-02-28	Class A Common Stock	M	1517	—	Acquired	36566	Direct
2026-02-28	Class A Common Stock	F	1218	$14.82	Disposed	35348	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-28	Restricted Stock Units	$	M	2775	Disposed		Class A Common Stock (2775)	Direct
2026-02-28	Restricted Stock Units	$	M	1517	Disposed		Class A Common Stock (1517)	Direct

Footnotes

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

F2: On November 28, 2023, the Reporting Person was granted 33,303 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.

F3: On November 28, 2024, the Reporting Person was granted 18,205 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.