Astera Labs, Inc. — Director's Dealing 2026

Feb 20, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Astera Labs, Inc. (ALAB)
CIK: 0001736297
Period of Report: 2026-02-17

Reporting Person: Mazzara Philip (General Counsel and Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-17	Common Stock	S	309	$122.1556	Disposed	142624	Direct
2026-02-17	Common Stock	S	1713	$122.8446	Disposed	140911	Direct
2026-02-17	Common Stock	S	1435	$123.9289	Disposed	139476	Direct
2026-02-17	Common Stock	S	923	$124.6558	Disposed	138553	Direct
2026-02-17	Common Stock	S	469	$126.34	Disposed	138084	Direct

Footnotes

F1: Represents shares of the Issuer's Common Stock required to be sold by the Reporting Person to satisfy tax withholding obligations in connection with the vesting and settlement of restricted stock units previously granted to the Reporting Person. Such sales were automatic and mandated by an election of the Issuer made in advance of the vesting event to require the satisfaction of tax withholding obligations to be funded by a "sell to cover", and does not represent a discretionary trade by the Reporting Person.

F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $122.1000 to $122.2800, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $122.3200 to $123.3000, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $123.3300 to $124.3200, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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.

F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $124.3500 to $125.3200, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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.