Astera Labs, Inc. — Director's Dealing 2025

Dec 4, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Astera Labs, Inc. (ALAB)
CIK: 0001736297
Period of Report: 2025-12-01

Reporting Person: ALBA MANUEL (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-01	Common Stock	S	991	$153.7957	Disposed	384872	Indirect
2025-12-01	Common Stock	S	711	$154.7447	Disposed	384161	Indirect
2025-12-01	Common Stock	S	234	$155.4973	Disposed	383927	Indirect
2025-12-01	Common Stock	S	178	$156.8783	Disposed	383749	Indirect
2025-12-01	Common Stock	S	93	$158.1092	Disposed	383656	Indirect
2025-12-01	Common Stock	S	212	$159.293	Disposed	383444	Indirect
2025-12-01	Common Stock	S	235	$160.5391	Disposed	383209	Indirect
2025-12-01	Common Stock	S	897	$161.6304	Disposed	382312	Indirect
2025-12-01	Common Stock	S	510	$162.5219	Disposed	381802	Indirect
2025-12-01	Common Stock	S	2362	$163.6772	Disposed	379440	Indirect
2025-12-01	Common Stock	S	2742	$164.6019	Disposed	376698	Indirect
2025-12-01	Common Stock	S	8502	$165.3947	Disposed	368196	Indirect
2025-12-01	Common Stock	S	2831	$166.6674	Disposed	365365	Indirect
2025-12-01	Common Stock	S	2455	$167.5229	Disposed	362910	Indirect
2025-12-01	Common Stock	S	1008	$168.5674	Disposed	361902	Indirect
2025-12-01	Common Stock	S	1952	$169.8449	Disposed	359950	Indirect
2025-12-01	Common Stock	S	3019	$170.6273	Disposed	356931	Indirect
2025-12-01	Common Stock	S	2680	$171.5749	Disposed	354251	Indirect
2025-12-01	Common Stock	S	1388	$172.5747	Disposed	352863	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1574498	Indirect
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 $153.0700 to $154.0500, 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 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.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $154.2300 to $155.2000, 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 $155.3300 to $156.0500, 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 $156.3900 to $157.3800, 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 $157.7700 to $158.3400, 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 $158.9100 to $159.8900, 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 $160.0600 to $161.0400, 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 $161.0600 to $162.0500, 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 $162.1100 to $163.1000, 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 $163.1100 to $164.1000, 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 $164.1300 to $165.1200, 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 $165.1300 to $166.1200, 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 $166.1300 to $167.1100, 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: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $167.1300 to $168.1200, 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.

F17: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $168.1300 to $169.1200, 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 $169.1400 to $170.1300, 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.

F19: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $170.1400 to $171.1300, 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.

F20: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $171.1400 to $172.1300, 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.

F21: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $172.1400 to $173.0700, 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.

F22: 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.