ADPT Adaptive Biotechnologies Corporation
Adaptive Biotechnologies Corporation (ADPT) Institutional Ownership
What the institutions did with ADPT 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 |
|---|---|---|
| VIKING GLOBAL INVESTORS LP | 30.0M | 19.2% |
| BlackRock, Inc. | 15.1M | 9.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.4M | 4.1% |
| WELLINGTON MANAGEMENT GROUP LLP | 5.9M | 3.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.5M | 3.5% |
| D. E. Shaw & Co., Inc. | 4.6M | 3.0% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 4.3M | 2.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 3.6M | 2.3% |
| STATE STREET CORP | 3.5M | 2.2% |
| Invesco Ltd. | 3.1M | 2.0% |
| GOLDMAN SACHS GROUP INC | 3.0M | 1.9% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.7M | 1.7% |
| Driehaus Capital Management LLC | 2.5M | 1.6% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.5M | 1.6% |
| LORD, ABBETT & CO. LLC | 2.5M | 1.6% |
| Nuveen, LLC | 2.4M | 1.5% |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2.2M | 1.4% |
| FRED ALGER MANAGEMENT, LLC | 2.1M | 1.3% |
| ARK Investment Management LLC | 2.1M | 1.3% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.9M | 1.2% |
| Aristotle Atlantic Partners, LLC | 1.8M | 1.2% |
| T. Rowe Price Investment Management, Inc. | 1.8M | 1.1% |
| BANK OF AMERICA CORP /DE/ | 1.7M | 1.1% |
| JANE STREET GROUP, LLC | 1.6M | 1.0% |
| NORTHERN TRUST CORP | 1.5M | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | Increased | 2.0M | 4.6M | +2.7M |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 3.9M | 5.9M | +2.1M |
| AMERIPRISE FINANCIAL INC | Reduced | 3.0M | 1.1M | -1.9M |
| BlackRock, Inc. | Increased | 13.3M | 15.1M | +1.8M |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 1.7M | 38.8K | -1.7M |
| Invesco Ltd. | Reduced | 4.5M | 3.1M | -1.4M |
| Divisadero Street Capital Management, LP | Sold Out | 1.3M | 0 | -1.3M |
| Capricorn Fund Managers Ltd | Reduced | 1.3M | 22.7K | -1.3M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Reduced | 5.4M | 4.3M | -1.2M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.6M | 2.7M | +1.1M |
| PERCEPTIVE ADVISORS LLC | Increased | 152.5K | 1.2M | +1.1M |
| Nuveen, LLC | Increased | 1.3M | 2.4M | +1.1M |
| LORD, ABBETT & CO. LLC | Reduced | 3.5M | 2.5M | -1.1M |
| Point72 Asset Management, L.P. | Sold Out | 1.0M | 0 | -1.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 4.5M | 5.5M | +984.8K |
| JANE STREET GROUP, LLC | Increased | 682.2K | 1.6M | +908.3K |
| Freestone Grove Partners LP | New | 0 | 881.7K | +881.7K |
| T. Rowe Price Investment Management, Inc. | Increased | 919.3K | 1.8M | +860.4K |
| Driehaus Capital Management LLC | Increased | 1.8M | 2.5M | +777.1K |
| Catalio Capital Management, LP | Sold Out | 722.8K | 0 | -722.8K |
| Rhenman & Partners Asset Management AB | Sold Out | 720.0K | 0 | -720.0K |
| HRT FINANCIAL LP | Increased | 131.2K | 795.2K | +663.9K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.1M | 504.9K | -576.5K |
| WASATCH ADVISORS LP | New | 0 | 576.3K | +576.3K |
| DEUTSCHE BANK AG\ | Reduced | 785.8K | 237.4K | -548.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 2.0M | 2.5M | +529.4K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | 2.7M | 2.2M | -505.8K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.2M | 1.7M | +502.1K |
| OBERWEIS ASSET MANAGEMENT INC/ | Increased | 807.0K | 1.3M | +451.8K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 81.4K | 500.5K | +419.1K |
| PBU - The Pension Fund of Early Childhood & Youth Educators | Sold Out | 378.1K | 0 | -378.1K |
| Jump Financial, LLC | New | 0 | 338.3K | +338.3K |
| Lisanti Capital Growth, LLC | New | 0 | 325.2K | +325.2K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 6.1M | 6.4M | +309.4K |
| Counterpoint Mutual Funds LLC | Sold Out | 307.3K | 0 | -307.3K |
| Polar Asset Management Partners Inc. | New | 0 | 272.6K | +272.6K |
| Sumitomo Mitsui Trust Group, Inc. | Reduced | 1.6M | 1.3M | -265.5K |
| Amova Asset Management Americas, Inc. | Reduced | 1.6M | 1.3M | -265.5K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 515.9K | 777.6K | +261.7K |
| GOLDMAN SACHS GROUP INC | Reduced | 3.2M | 3.0M | -257.9K |
| Granite Investment Partners, LLC | Increased | 500.1K | 757.2K | +257.2K |
| VOYA INVESTMENT MANAGEMENT LLC | Increased | 48.8K | 302.1K | +253.3K |
| SummitTX Capital, L.P. | Reduced | 317.6K | 65.6K | -252.0K |
| TUDOR INVESTMENT CORP ET AL | Reduced | 786.3K | 543.5K | -242.8K |
| STATE STREET CORP | Increased | 3.2M | 3.5M | +231.1K |
| ALGERT GLOBAL LLC | Reduced | 362.7K | 131.8K | -230.9K |
| JPMORGAN CHASE & CO | Increased | 259.2K | 488.4K | +229.2K |
| PRUDENTIAL FINANCIAL INC | Reduced | 359.1K | 145.8K | -213.3K |
| Schonfeld Strategic Advisors LLC | Reduced | 262.2K | 51.2K | -211.0K |
| MARSHALL WACE, LLP | Increased | 86.3K | 292.1K | +205.7K |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | New | 0 | 202.1K | +202.1K |
| MORGAN STANLEY | Reduced | 967.1K | 766.2K | -200.9K |
| Russell Investments Group, Ltd. | Reduced | 274.4K | 78.7K | -195.7K |
| SUSQUEHANNA ADVISORS GROUP, INC. | New | 0 | 184.2K | +184.2K |
| ARISTEIA CAPITAL, L.L.C. | New | 0 | 183.5K | +183.5K |
| CITADEL ADVISORS LLC | Reduced | 363.3K | 181.4K | -182.0K |
| Aquatic Capital Management LLC | Reduced | 194.5K | 12.7K | -181.8K |
| Brevan Howard Capital Management LP | Sold Out | 170.9K | 0 | -170.9K |
| Trexquant Investment LP | Increased | 571.6K | 736.3K | +164.7K |
| Qube Research & Technologies Ltd | Reduced | 639.4K | 479.7K | -159.6K |
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.