Astera Labs (ALAB)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-07-20 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Astera Labs, Inc. (ALAB) CIK: 0001736297 --- Reporting Owner --- Name: Cota Germaine CIK: 0001830532 Role: Officer (Chief Accting. Off. & VP, Fin.) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-07-20 | Code: A (Grant or award) Shares: +1,451 | Price: $0.00 Shares Owned After: 26,440 | Ownership: D (Direct) Footnotes: [F1] These shares represent an award of restricted stock units ("RSUs") granted on July 20, 2026 under the Astera Labs, Inc. 2024 Stock Option and Incentive Plan (the "Plan"). Such award provides that 6.25% of the RSUs shall vest in 16 equal quarterly installments following the vesting commencement date of August 15, 2026, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. --- Footnotes (Complete Index) --- F1: These shares represent an award of restricted stock units ("RSUs") granted on July 20, 2026 under the Astera Labs, Inc. 2024 Stock Option and Incentive Plan (the "Plan"). Such award provides that 6.25% of the RSUs shall vest in 16 equal quarterly installments following the vesting commencement date of August 15, 2026, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. --- Signature --- /s/ /s/ Philip Mazzara, Attorney-in-Fact (2026-07-22)