144 0001484394 XXXXXXXX LIVE 0001736297 Astera Labs, Inc. 001-41979 2345 NORTH FIRST STREET SAN JOSE CA 95131 408-242-7319 Dyckerhoff Stefan A Affiliate Common Stifel

501 N Broadway St Louis MO 63102

24998 4374650.00 170210000 04/17/2026 NASDAQ Common 11/08/2019 Private Placement Issuer N 4467 11/08/2019 Cash Common 02/07/2020 Private Placement Issuer N 2543 02/07/2020 Cash Common 05/17/2022 Private Placement Issuer N 11257 05/17/2022 Cash Common 08/15/2024 Pro-rata distribution from Venture Fund Sutter Hill Ventures A California Limited Partnership via Issuer 05/17/2022 N 6731 05/17/2022 Cash Y Of the shares covered by this Form 144: an aggregate of 16.666 shares were sold today by a trust of which Mr. Dyckerhoff is a trustee; 7,010 shares were sold by an individual retirement account for Mr. Dyckerhoff; and 1,322 shares were sold by a limited partnership of which Mr. Dyckerhoff's trust is the trustee of a trust which is the general partner. 04/17/2026 12/01/2025 Kanwalpreet S Kalra under POA