Who owns Astera Labs (ALAB)?

124 holders named in SEC filings declare between 67.5% and 79.5% of Astera Labs' shares outstanding, as of Sep 2, 2026. The largest are Fidelity (FMR) (14.3%), Vanguard (9.1%) and BlackRock (7.9%); the five largest hold 40.4% together. Another 867 institutions hold small positions worth 4.3%. At least 16.2% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 14.5% and sold 11.6% of the shares, a net purchase of 2.9%; 341 opened a position, 275 added, 251 reduced and 75 sold out. Biggest buyers: Invesco (+4.5M shares) and T. Rowe Price (+2.7M shares). Biggest sellers: Atreides Management, LP (-2.1M) and ALLIANCEBERNSTEIN L.P. (-1.5M). Schedule 13D/G filings since Mar 31, 2026: BlackRock, Inc. raised its stake to 7.3% on Jun 30, 2026. Directors and officers, from their latest Form 4: Jitendra Mohan (4.6%), Sanjay Gajendra (4.4%) and Manuel Alba (0.80%). Over time, 965 managers declared Astera Labs in their 13F for Q2 2026, against 115 for Q1 2024: together at most 74.5% of the shares outstanding, against 27.3%.

Astera Labs institutional ownership over time

From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.

More on Astera Labs

• Astera Labs stock (ALAB): price and overview
• Astera Labs dividend
• Astera Labs financials
• Astera Labs technicals and short interest

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