Astera Labs, Inc. — Director's Dealing 2025

Sep 5, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Astera Labs, Inc. (ALAB)
CIK: 0001736297
Period of Report: 2025-09-02

Reporting Person: ALBA MANUEL (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-02	Common Stock	S	6717	$168.2316	Disposed	1867781	Indirect
2025-09-02	Common Stock	S	10586	$168.9591	Disposed	1857195	Indirect
2025-09-02	Common Stock	S	10108	$170.1033	Disposed	1847087	Indirect
2025-09-02	Common Stock	S	11646	$171.1597	Disposed	1835441	Indirect
2025-09-02	Common Stock	S	17373	$172.0574	Disposed	1818068	Indirect
2025-09-02	Common Stock	S	22459	$173.1229	Disposed	1795609	Indirect
2025-09-02	Common Stock	S	36288	$174.018	Disposed	1759321	Indirect
2025-09-02	Common Stock	S	4006	$175.0424	Disposed	1755315	Indirect
2025-09-02	Common Stock	S	9622	$176.2324	Disposed	1745693	Indirect
2025-09-02	Common Stock	S	13475	$177.0325	Disposed	1732218	Indirect
2025-09-02	Common Stock	S	1870	$178.2163	Disposed	1730348	Indirect
2025-09-02	Common Stock	S	3262	$179.2464	Disposed	1727086	Indirect
2025-09-02	Common Stock	S	2588	$180.0993	Disposed	1724498	Indirect
2025-09-02	Common Stock	S	1478	$168.2315	Disposed	417385	Indirect
2025-09-02	Common Stock	S	2329	$168.9591	Disposed	415056	Indirect
2025-09-02	Common Stock	S	2224	$170.1033	Disposed	412832	Indirect
2025-09-02	Common Stock	S	2562	$171.1598	Disposed	410270	Indirect
2025-09-02	Common Stock	S	3822	$172.0574	Disposed	406448	Indirect
2025-09-02	Common Stock	S	4941	$173.1229	Disposed	401507	Indirect
2025-09-02	Common Stock	S	7983	$174.018	Disposed	393524	Indirect
2025-09-02	Common Stock	S	882	$175.0423	Disposed	392642	Indirect
2025-09-02	Common Stock	S	2116	$176.2325	Disposed	390526	Indirect
2025-09-02	Common Stock	S	2965	$177.0325	Disposed	387561	Indirect
2025-09-02	Common Stock	S	411	$178.2159	Disposed	387150	Indirect
2025-09-02	Common Stock	S	718	$179.2462	Disposed	386432	Indirect
2025-09-02	Common Stock	S	569	$180.0988	Disposed	385863	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5000	Indirect
Common Stock	2351	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 $167.5900 to $168.5800, 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: These shares are owned directly by Manuel Alba-Marquez in trust for Alba 2003 Living Trust (the "Alba Trust"), of which the Reporting Person and his spouse are co-trustees. The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein, and the filing of this Form 4 is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $168.5900 to $169.5800, 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 $169.5900 to $170.5800, 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 $170.5900 to $171.5800, 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 $171.5900 to $172.5800, 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 $172.5900 to $173.5800, 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 $173.5900 to $174.5700, 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.

F10: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $174.6000 to $175.5800, 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.

F11: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $175.6100 to $176.5900, 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.

F12: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $176.6000 to $177.5800, 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.

F13: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $177.7100 to $178.6900, 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.

F14: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $178.7600 to $179.7400, 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.

F15: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $179.7800 to $180.5300, 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.

F16: These shares are owned directly by Casa Alameda 2007, LLC, of which the Reporting Person is a manager. The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein, and the filing of this Form 4 is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

F17: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $174.6000 to $175.5700, 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.

F18: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $177.7100 to $178.6700, 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.