CGEM Cullinan Therapeutics, Inc.
Cullinan Therapeutics, Inc. (CGEM) Institutional Ownership
What the institutions did with CGEM 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 |
|---|---|---|
| MPM BIOIMPACT LLC | 9.7M | 13.6% |
| Lynx1 Capital Management LP | 9.0M | 12.5% |
| BVF INC/IL | 5.8M | 8.0% |
| BlackRock, Inc. | 5.2M | 7.3% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 3.8M | 5.3% |
| STATE STREET CORP | 3.7M | 5.1% |
| Kynam Capital Management, LP | 3.1M | 4.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.6M | 3.6% |
| RTW INVESTMENTS, LP | 2.4M | 3.3% |
| Siren, L.L.C. | 1.9M | 2.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.5M | 2.2% |
| Blue Owl Capital Holdings LP | 1.5M | 2.1% |
| Venrock Adviser, LLC | 1.4M | 1.9% |
| BOOTHBAY FUND MANAGEMENT, LLC | 1.1M | 1.5% |
| DIMENSIONAL FUND ADVISORS LP | 1.0M | 1.5% |
| GOLDMAN SACHS GROUP INC | 1.0M | 1.4% |
| Affinity Asset Advisors, LLC | 875.8K | 1.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 738.7K | 1.0% |
| BOONE CAPITAL MANAGEMENT LLC | 704.4K | 1.0% |
| Elmind Capital, LP | 690.0K | 1.0% |
| MORGAN STANLEY | 629.0K | 0.9% |
| TWIN FOCUS CAPITAL PARTNERS, LLC | 595.5K | 0.8% |
| AQR CAPITAL MANAGEMENT LLC | 581.3K | 0.8% |
| NORTHERN TRUST CORP | 571.1K | 0.8% |
| BANK OF AMERICA CORP /DE/ | 510.3K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| MPM BIOIMPACT LLC | Increased | 7.6M | 9.7M | +2.1M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 2.0M | 3.8M | +1.8M |
| Nextech Invest, Ltd. | Sold Out | 1.1M | 0 | -1.1M |
| STATE STREET CORP | Increased | 2.5M | 3.7M | +1.1M |
| MARSHALL WACE, LLP | Reduced | 1.0M | 66.1K | -983.5K |
| Point72 Asset Management, L.P. | Reduced | 905.4K | 75.0K | -830.4K |
| BlackRock, Inc. | Increased | 4.4M | 5.2M | +782.8K |
| BOONE CAPITAL MANAGEMENT LLC | New | 0 | 704.4K | +704.4K |
| Siren, L.L.C. | Increased | 1.2M | 1.9M | +700.0K |
| RTW INVESTMENTS, LP | Increased | 1.7M | 2.4M | +658.4K |
| GOLDMAN SACHS GROUP INC | Increased | 455.4K | 1.0M | +546.1K |
| PERCEPTIVE ADVISORS LLC | New | 0 | 426.5K | +426.5K |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Sold Out | 386.2K | 0 | -386.2K |
| Blue Owl Capital Holdings LP | Reduced | 1.9M | 1.5M | -370.0K |
| Soleus Capital Management, L.P. | Reduced | 410.2K | 50.0K | -360.2K |
| Nuveen, LLC | Reduced | 805.7K | 471.9K | -333.8K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 522.0K | 272.6K | -249.5K |
| ORBIMED ADVISORS LLC | Sold Out | 243.0K | 0 | -243.0K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | 0 | 238.0K | +238.0K |
| FMR LLC | Increased | 7.2K | 240.1K | +232.9K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 360.9K | 581.3K | +220.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 552.6K | 738.7K | +186.2K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.4M | 1.5M | +179.0K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Sold Out | 173.7K | 0 | -173.7K |
| Squarepoint Ops LLC | New | 0 | 168.1K | +168.1K |
| Elmind Capital, LP | Increased | 530.0K | 690.0K | +160.0K |
| Bleichroeder LP | Increased | 100.0K | 250.0K | +150.0K |
| CITADEL ADVISORS LLC | Increased | 252.8K | 397.5K | +144.7K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 906.0K | 1.0M | +140.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.5M | 2.6M | +131.0K |
| NORTHERN TRUST CORP | Increased | 449.3K | 571.1K | +121.8K |
| Longaeva Partners L.P. | Reduced | 183.7K | 64.8K | -118.9K |
| Invesco Ltd. | Reduced | 244.2K | 143.6K | -100.6K |
| Affinity Asset Advisors, LLC | Increased | 781.3K | 875.8K | +94.5K |
| Cinctive Capital Management LP | Sold Out | 94.4K | 0 | -94.4K |
| Engineers Gate Manager LP | Increased | 66.3K | 153.1K | +86.8K |
| MOORE CAPITAL MANAGEMENT, LP | Increased | 106.0K | 189.9K | +84.0K |
| ALGERT GLOBAL LLC | Reduced | 109.7K | 36.9K | -72.9K |
| Qube Research & Technologies Ltd | Reduced | 90.3K | 19.9K | -70.4K |
| MARTINGALE ASSET MANAGEMENT L P | New | 0 | 61.9K | +61.9K |
| SUPERSTRING CAPITAL MANAGEMENT LP | Sold Out | 59.5K | 0 | -59.5K |
| Jump Financial, LLC | Reduced | 193.8K | 138.7K | -55.1K |
| XTX Topco Ltd | Increased | 26.3K | 77.0K | +50.6K |
| ADAR1 Capital Management, LLC | Sold Out | 50.0K | 0 | -50.0K |
| UBS Group AG | Increased | 202.4K | 248.6K | +46.2K |
| Knott David M Jr | Increased | 24.2K | 69.2K | +45.0K |
| GSA CAPITAL PARTNERS LLP | Sold Out | 43.3K | 0 | -43.3K |
| FRANKLIN RESOURCES INC | New | 0 | 42.3K | +42.3K |
| MORGAN STANLEY | Increased | 589.5K | 629.0K | +39.6K |
| HRT FINANCIAL LP | Sold Out | 38.6K | 0 | -38.6K |
| Quantinno Capital Management LP | Increased | 72.3K | 109.9K | +37.6K |
| Fisher Asset Management, LLC | New | 0 | 36.0K | +36.0K |
| PFM Health Sciences, LP | Reduced | 227.4K | 192.4K | -35.0K |
| TD Asset Management Inc | Reduced | 114.4K | 80.6K | -33.8K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | New | 0 | 31.7K | +31.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 432.9K | 464.0K | +31.1K |
| WELLS FARGO & COMPANY/MN | Increased | 20.9K | 51.3K | +30.3K |
| BOOTHBAY FUND MANAGEMENT, LLC | Reduced | 1.1M | 1.1M | -30.2K |
| ExodusPoint Capital Management, LP | New | 0 | 28.5K | +28.5K |
| ALLIANCEBERNSTEIN L.P. | Increased | 47.6K | 75.3K | +27.6K |
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.