Astera Labs, Inc. Common Stock (ALAB) ownership: Top institutional holder: FMR LLC ($2.80B). Insider activity: Net Seller (0 buys, 20 sells). 2 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| FMR LLC | 25529885.00 | $2.80B | 2026-03-31 |
| VANGUARD GROUP INC | 13827506.00 | $2.30B | 2025-12-31 |
| BlackRock, Inc. | 11449769.00 | $1.25B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7309778.00 | $801.15M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6340732.00 | $694.94M | 2026-03-31 |
| ALLIANCEBERNSTEIN L.P. | 2512695.00 | $418.01M | 2026-03-31 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3799000.00 | $416.37M | 2026-03-31 |
| Atreides Management, LP | 3365787.00 | $368.89M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.