Gajendra Sanjay - 21 May 2026 Form 4 Insider Report for Astera Labs, Inc. (ALAB)

Reporting relationship: President and COO, Director
Issuer ticker: ALAB
Reported as of: 21 May 2026
Net transaction value: -$116,119,966
SEC form: 4
Accepted by SEC: 26 May 2026, 16:48:30 UTC
Prior SEC filing: 21 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Philip Mazzara, Attorney-in-Fact

Key filing fact

Gajendra Sanjay filed Form 4 for Astera Labs, Inc. (ALAB) on 26 May 2026.

Key facts

This page summarizes Gajendra Sanjay's Form 4 filing for Astera Labs, Inc. (ALAB).
7 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 26 May 2026, 16:48.

Change

Previous filing in this sequence was filed on 21 May 2026.
Current net transaction value: -$116,119,966.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001998179 Primary reporting owner

Gajendra Sanjay

Relationship: President and COO, Director
Address: C/O ASTERA LABS, INC., 2345 NORTH FIRST STREET, SAN JOSE
Signature: /s/ Philip Mazzara, Attorney-in-Fact
Signature date: 26 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ALAB transaction

Common Stock

Sale

Transaction value: $39,526,714
Shares: -136,709
Change %: -2.5%
Price: $289.13
Shares after: 5,327,504
Date: 21 May 2026
Ownership: By Trust 1
Footnotes: F1, F2, F3

ALAB transaction

Common Stock

Sale

Transaction value: $39,843,419
Shares: -137,294
Change %: -2.6%
Price: $290.21
Shares after: 5,190,210
Date: 21 May 2026
Ownership: By Trust 1
Footnotes: F1, F3, F4

ALAB transaction

Common Stock

Sale

Transaction value: $21,350,707
Shares: -73,300
Change %: -1.4%
Price: $291.28
Shares after: 5,116,910
Date: 21 May 2026
Ownership: By Trust 1
Footnotes: F1, F3, F5

ALAB transaction

Common Stock

Sale

Transaction value: $13,937,789
Shares: -47,710
Change %: -0.93%
Price: $292.14
Shares after: 5,069,200
Date: 21 May 2026
Ownership: By Trust 1
Footnotes: F1, F3, F6

ALAB transaction

Common Stock

Sale

Transaction value: $1,461,337
Shares: -4,987
Change %: -0.1%
Price: $293.03
Shares after: 5,064,213
Date: 21 May 2026
Ownership: By Trust 1
Footnotes: F1, F3, F7

ALAB transaction

Common Stock

Gift

Transaction value
Shares: +226,189
Change %: +4.5%
Price: $0.000000^*
Shares after: 5,290,402
Date: 22 May 2026
Ownership: By Trust 1
Footnotes: F3, F8

ALAB transaction

Common Stock

Gift

Transaction value
Shares: -226,189
Change %: -16%
Price: $0.000000^*
Shares after: 1,209,668
Date: 22 May 2026
Ownership: Direct
Footnotes: F8

ALAB holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 615,000
Date: 21 May 2026
Ownership: By Trust 2
Footnotes: F9

ALAB holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 615,000
Date: 21 May 2026
Ownership: By Trust 3
Footnotes: F10

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 10 footnotes

Footnote F1

The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $288.8000 to $289.7900, 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.

Footnote F3

These shares are owned directly by an estate planning trust ("Trust 1"), of which the Reporting Person is a trustee. 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.

Footnote F4

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $289.8000 to $290.7800, 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.

Footnote F5

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $290.8000 to $291.7900, 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.

Footnote F6

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $291.8000 to $292.7900, 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.

Footnote F7

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $292.8400 to $293.5000, 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.

Footnote F8

On May 22, 2026, the Reporting Person transferred 226,189 shares of Issuer Common Stock to an estate planning trust ("Trust 1") for no consideration.

Footnote F9

These shares are owned directly by an estate planning trust ("Trust 2"). 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.

Footnote F10

These shares are owned directly by an estate planning trust ("Trust 3"). 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.