Astera Labs, Inc. — Director's Dealing 2026

Jan 6, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Astera Labs, Inc. (ALAB)
CIK: 0001736297
Period of Report: 2026-01-02

Reporting Person: Mazzara Philip (General Counsel and Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-02	Common Stock	S	100	$172.65	Disposed	146940	Direct
2026-01-02	Common Stock	S	600	$174.1283	Disposed	146340	Direct
2026-01-02	Common Stock	S	1100	$174.9773	Disposed	145240	Direct
2026-01-02	Common Stock	S	500	$176.92	Disposed	144740	Direct
2026-01-02	Common Stock	S	2304	$178.3094	Disposed	142436	Direct
2026-01-02	Common Stock	S	2577	$179.1146	Disposed	139859	Direct
2026-01-02	Common Stock	S	1319	$179.9021	Disposed	138540	Direct
2026-01-02	Common Stock	S	1300	$180.9815	Disposed	137240	Direct
2026-01-02	Common Stock	S	200	$182.12	Disposed	137040	Direct

Footnotes

F1: The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 29, 2025.

F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $173.6900 to $174.6700, 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 $174.7000 to $175.4500, 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 $176.5100 to $177.4900, 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 $177.5900 to $178.5700, 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.

F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $178.6600 to $179.5900, 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.

F7: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $179.6600 to $180.2600, 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.

F8: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $180.6600 to $181.4900, 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.

F9: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $181.7500 to $182.4900, 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.