Who owns ALAB?
Institutional ownership of Astera Labs Inc. from Form 13F, Q2 2026
988 institutional managers reported holding Astera Labs Inc. (ALAB) in Form 13F filings for Q2 2026, with 127,750,574 shares worth $61.2B. The largest reported holder was FMR LLC. Managers that filed both quarters added a net 7,425,354 shares (+6.2%). 361 opened new positions and 82 sold out.
- Funds holding
- 988
- Value held
- $61.2B
- New / sold out
- 361 / 82
- Net shares, same filers
- +6.2%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of ALAB
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| FMR LLC | $12.0B | 19.4% | 24,845,364 | Trimmed |
| BlackRock, Inc. | $6.6B | 10.7% | 13,683,865 | Added |
| Vanguard Portfolio Management LLC | $3.8B | 6.2% | 7,887,650 | Added |
| Vanguard Capital Management LLC | $3.2B | 5.3% | 6,727,089 | Added |
| Invesco Ltd. | $2.4B | 3.8% | 4,910,555 | Added |
| State Street Corp | $1.8B | 2.9% | 3,678,093 | Added |
| Geode Capital Management, LLC | $1.3B | 2.2% | 2,796,173 | Added |
| Price T Rowe Associates Inc | $1.2B | 1.9% | 2,409,693 | Added |
| Van Eck Associates Corp | $1.1B | 1.8% | 2,237,961 | Added |
| Bank of America Corp | $1.1B | 1.7% | 2,198,235 | Added |
| Morgan Stanley | $815M | 1.3% | 1,686,491 | Trimmed |
| JPMorgan Chase & Co | $810M | 1.4% | 1,775,810 | Added |
| Amundi | $769M | 1.2% | 1,591,888 | Trimmed |
| Whale Rock Capital Management LLC | $757M | 1.2% | 1,567,882 | New |
| Norges Bank | $693M | 1.1% | 1,434,347 | New |
| Citigroup Inc | $653M | 1.1% | 1,352,136 | Trimmed |
| Rafferty Asset Management, LLC | $638M | 1.0% | 1,321,419 | Added |
| Fred Alger Management, LLC | $620M | 1.0% | 1,283,840 | Trimmed |
| Goldman Sachs Group Inc | $596M | 1.0% | 1,234,152 | Trimmed |
| Atreides Management, LP | $588M | 1.0% | 1,216,795 | Trimmed |
| Barclays PLC | $546M | 0.9% | 1,130,944 | Trimmed |
| Maverick Capital LTD | $515M | 0.8% | 1,067,215 | Added |
| Federated Hermes, Inc. | $453M | 0.7% | 938,311 | Added |
| Vanguard Fiduciary Trust Co | $427M | 0.7% | 884,834 | Added |
| Northern Trust Corp | $421M | 0.7% | 870,775 | Added |
Share of 13F holdings is each fund's shares as a share of the 127,750,574 ALAB shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Invesco Ltd. Added+$2.2B
- BlackRock, Inc. Added+$1.1B
- Price T Rowe Associates Inc Added+$865M
- Whale Rock Capital Management LLC New+$757M
- Norges Bank New+$693M
- JPMorgan Chase & Co Added+$613M
- T. Rowe Price Investment Management, Inc. New+$420M
- Federated Hermes, Inc. Added+$322M
- Vanguard Portfolio Management LLC Added+$279M
- Bank of America Corp Added+$198M
Biggest sellers in Q2 2026
- Atreides Management, LP Trimmed-$1.0B
- Fred Alger Management, LLC Trimmed-$623M
- BNP Paribas Financial Markets Trimmed-$493M
- D. E. Shaw & Co., Inc. Trimmed-$405M
- Bridgewater Associates, LP Trimmed-$362M
- Two Sigma Investments, LP Trimmed-$336M
- FMR LLC Trimmed-$331M
- UBS Group AG Trimmed-$309M
- Westfield Capital Management Co LP Trimmed-$295M
- Frontier Capital Management Co LLC Trimmed-$258M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $13.3B and sold $8.4B; 280 added and 254 trimmed.
Schedule 13D and 13G filings on ALAB
Owners of more than 5% must file within days, so these can be newer than the 13F data.
- 2025-10-17BlackRock, Inc. SCHEDULE 13G filed by BlackRock Inc.Schedule 13G
- 2025-05-14ALLIANCEBERNSTEIN L.P. SCHEDULE 13G filed by Astera Labs Inc.Schedule 13G
- 2025-01-31VANGUARD GROUP INC SCHEDULE 13G filed by Astera Labs Inc.Schedule 13G
Questions about ALAB ownership
- Who owns ALAB stock?
- 988 institutional investment managers reported ALAB positions in their Form 13F filings for Q2 2026, holding 127,750,574 shares worth $61.2B in total. FMR LLC reported the largest position.
- Are funds buying or selling ALAB?
- In Q2 2026, 361 managers opened new ALAB positions, 280 added, 254 trimmed and 82 sold out. Managers that filed in both quarters added a net 7,425,354 shares.
- How current is this ALAB institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to ALAB by CUSIP. Options are left out. ALAB news and filings · ALAB insider trades · Top funds