ALAB Astera Labs
Astera Labs (ALAB) Institutional Ownership
What the institutions did with ALAB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| FMR LLC | 24.8M | 19.4% |
| BlackRock, Inc. | 13.7M | 10.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.9M | 6.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.7M | 5.3% |
| Invesco Ltd. | 4.9M | 3.8% |
| STATE STREET CORP | 3.7M | 2.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8M | 2.2% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.4M | 1.9% |
| VAN ECK ASSOCIATES CORP | 2.2M | 1.8% |
| BANK OF AMERICA CORP /DE/ | 2.2M | 1.7% |
| JPMORGAN CHASE & CO | 1.8M | 1.4% |
| MORGAN STANLEY | 1.7M | 1.3% |
| Amundi | 1.6M | 1.2% |
| Whale Rock Capital Management LLC | 1.6M | 1.2% |
| NORGES BANK | 1.4M | 1.1% |
| CITIGROUP INC | 1.4M | 1.1% |
| Rafferty Asset Management, LLC | 1.3M | 1.0% |
| FRED ALGER MANAGEMENT, LLC | 1.3M | 1.0% |
| GOLDMAN SACHS GROUP INC | 1.2M | 1.0% |
| Atreides Management, LP | 1.2M | 1.0% |
| BARCLAYS PLC | 1.1M | 0.9% |
| MAVERICK CAPITAL LTD | 1.1M | 0.8% |
| ALLIANCEBERNSTEIN L.P. | 1.0M | 0.8% |
| FEDERATED HERMES, INC. | 938.3K | 0.7% |
| VANGUARD FIDUCIARY TRUST CO | 884.8K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Invesco Ltd. | Increased | 370.2K | 4.9M | +4.5M |
| BlackRock, Inc. | Increased | 11.4M | 13.7M | +2.2M |
| Atreides Management, LP | Reduced | 3.4M | 1.2M | -2.1M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 618.5K | 2.4M | +1.8M |
| Whale Rock Capital Management LLC | New | 0 | 1.6M | +1.6M |
| ALLIANCEBERNSTEIN L.P. | Reduced | 2.5M | 1.0M | -1.5M |
| JPMORGAN CHASE & CO | Increased | 430.4K | 1.8M | +1.3M |
| FRED ALGER MANAGEMENT, LLC | Reduced | 2.6M | 1.3M | -1.3M |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 1.8M | 792.4K | -1.0M |
| T. Rowe Price Investment Management, Inc. | New | 0 | 869.6K | +869.6K |
| D. E. Shaw & Co., Inc. | Reduced | 1.5M | 680.3K | -839.3K |
| Bridgewater Associates, LP | Reduced | 750.9K | 992 | -749.9K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 744.3K | 48.1K | -696.2K |
| FMR LLC | Reduced | 25.5M | 24.8M | -684.5K |
| FEDERATED HERMES, INC. | Increased | 272.3K | 938.3K | +666.1K |
| UBS Group AG | Reduced | 1.4M | 802.0K | -640.6K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Reduced | 860.1K | 249.3K | -610.8K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 7.3M | 7.9M | +577.9K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Reduced | 688.2K | 154.6K | -533.6K |
| BARCLAYS PLC | Reduced | 1.6M | 1.1M | -423.2K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.8M | 2.2M | +410.0K |
| NOMURA ASSET MANAGEMENT CO LTD | Increased | 450.6K | 852.3K | +401.7K |
| 1832 Asset Management L.P. | Reduced | 850.7K | 451.8K | -398.9K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 6.3M | 6.7M | +386.4K |
| MILLENNIUM MANAGEMENT LLC | Increased | 220.4K | 604.5K | +384.1K |
| Rafferty Asset Management, LLC | Increased | 945.5K | 1.3M | +375.9K |
| VAN ECK ASSOCIATES CORP | Increased | 1.9M | 2.2M | +373.5K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | 453.7K | 88.7K | -365.0K |
| Capital Impact Advisors, LLC | New | 0 | 348.6K | +348.6K |
| STATE STREET CORP | Increased | 3.3M | 3.7M | +344.5K |
| FIRST TRUST ADVISORS LP | Increased | 238.9K | 580.7K | +341.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 610.7K | 272.5K | -338.2K |
| Valliance Asset Management Ltd | New | 0 | 337.2K | +337.2K |
| Altshuler Shaham Ltd | Reduced | 366.3K | 32.5K | -333.7K |
| NEUBERGER BERMAN GROUP LLC | Increased | 3.1K | 331.3K | +328.1K |
| Champlain Investment Partners, LLC | Sold Out | 327.6K | 0 | -327.6K |
| TUDOR INVESTMENT CORP ET AL | Increased | 37.3K | 361.0K | +323.7K |
| Focus Partners Wealth | Reduced | 314.5K | 7.3K | -307.1K |
| E20 Capital Ltd | Sold Out | 303.9K | 0 | -303.9K |
| CITADEL ADVISORS LLC | Sold Out | 302.5K | 0 | -302.5K |
| FRANKLIN RESOURCES INC | Increased | 26.0K | 316.1K | +290.1K |
| Amundi | Reduced | 1.9M | 1.6M | -288.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.5M | 2.8M | +287.9K |
| Artisan Partners Limited Partnership | Reduced | 560.6K | 274.3K | -286.3K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | 538.2K | 257.7K | -280.5K |
| Qube Research & Technologies Ltd | Increased | 35.1K | 311.4K | +276.3K |
| Analog Century Management LP | Reduced | 504.3K | 253.6K | -250.7K |
| Anther Capital Ltd | Reduced | 231.2K | 1.4K | -229.8K |
| Greenhouse Funds LLLP | Reduced | 355.3K | 134.6K | -220.7K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | New | 0 | 208.9K | +208.9K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Increased | 649.2K | 854.5K | +205.3K |
| E Fund Management Co., Ltd. | New | 0 | 196.9K | +196.9K |
| Driehaus Capital Management LLC | New | 0 | 194.6K | +194.6K |
| WT Asset Management Ltd | New | 0 | 178.7K | +178.7K |
| Tensor Edge Capital, LLC | Reduced | 228.4K | 50.0K | -178.4K |
| IMC-Chicago, LLC | Sold Out | 176.1K | 0 | -176.1K |
| TimesSquare Capital Management, LLC | New | 0 | 175.9K | +175.9K |
| Squarepoint Ops LLC | Increased | 141.6K | 317.2K | +175.7K |
| Estuary Capital Management LP | Sold Out | 171.0K | 0 | -171.0K |
| Connor, Clark & Lunn Investment Management Ltd. | New | 0 | 161.4K | +161.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.