DaveManuel.com · Institutional Ownership · Who Owns It
CULLINAN THERAPEUTICS INC (CGEM)
Institutional ownership reported to the SEC as of Q2 2026, across 23 quarters.
184
Reporting holders
$1.3B
Reported value
111.4%
Of shares outstanding
0.3%
Calls
0.2%
Puts
+11
Holder change
Institutions report 71,705,257 shares against 64,354,694 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| MPM BIOIMPACT LLC | $177.2M | 9,731,341 | 10.81% | 22q | +27.2%+$37.9M |
| Lynx1 Capital Management LP | $163.2M | 8,963,500 | 18.86% | 9q | HELD |
| BVF INC/IL | $104.7M | 5,750,683 | 2.68% | 22q | HELD |
| BlackRock, Inc. | $95.3M | 5,232,766 | 0.00% | 8q | +17.6%+$14.3M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $69.7M | 3,825,950 | 0.01% | 19q | +88.5%+$32.7M |
| STATE STREET CORP | $66.8M | 3,668,627 | 0.00% | 22q | +44.2%+$20.5M |
| Kynam Capital Management, LP | $56.7M | 3,114,132 | 3.13% | 7q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $47.6M | 2,614,066 | 0.00% | 2q | +5.3%+$2.4M |
| RTW INVESTMENTS, LP | $43.1M | 2,364,347 | 0.37% | 9q | +38.6%+$12.0M |
| Siren, L.L.C. | $34.5M | 1,893,410 | 0.70% | 8q | +58.7%+$12.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $28.2M | 1,547,309 | 0.00% | 22q | +13.1%+$3.3M |
| Blue Owl Capital Holdings LP | $28.0M | 1,539,764 | 4.22% | 11q | -19.4%-$6.7M |
| Venrock Adviser, LLC | $25.1M | 1,379,965 | 0.76% | 9q | HELD |
| BOOTHBAY FUND MANAGEMENT, LLC | $19.7M | 1,082,611 | 0.26% | 3q | -2.7%-$549.8K |
| DIMENSIONAL FUND ADVISORS LP | $19.1M | 1,046,694 | 0.00% | 16q | +15.5%+$2.6M |
| GOLDMAN SACHS GROUP INC | $18.2M | 1,001,598 | 0.00% | 22q | +119.9%+$9.9M |
| Affinity Asset Advisors, LLC | $15.9M | 875,760 | 0.72% | 11q | +12.1%+$1.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $13.5M | 738,741 | 0.00% | 2q | +33.7%+$3.4M |
| BOONE CAPITAL MANAGEMENT LLC | $12.8M | 704,442 | 3.00% | new | NEW |
| Elmind Capital, LP | $12.6M | 690,000 | 3.16% | 3q | +30.2%+$2.9M |
| MORGAN STANLEY | $11.5M | 629,035 | 0.00% | 22q | +6.7%+$720.2K |
| TWIN FOCUS CAPITAL PARTNERS, LLC | $10.8M | 595,489 | 1.10% | 9q | HELD |
| AQR CAPITAL MANAGEMENT LLC | $10.6M | 581,338 | 0.00% | 5q | +61.1%+$4.0M |
| NORTHERN TRUST CORP | $10.4M | 571,080 | 0.00% | 22q | +27.1%+$2.2M |
| CITADEL ADVISORS LLC | $9.3M incl. $2.1M options CALL+PUT | 397,484 | 0.00% | 22q | +57.2%+$3.4M |
| BANK OF AMERICA CORP /DE/ | $9.3M | 510,325 | 0.00% | 22q | -1.2%-$116.5K |
| Nuveen, LLC | $8.6M | 471,947 | 0.00% | 6q | -41.4%-$6.1M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $8.5M | 464,034 | 0.00% | 22q | +7.2%+$567.1K |
| PERCEPTIVE ADVISORS LLC | $7.8M | 426,478 | 0.12% | new | NEW |
| TCG Crossover Management, LLC | $7.4M | 406,786 | 0.18% | 2q | HELD |
| DEUTSCHE BANK AG\ | $7.0M | 382,840 | 0.00% | 22q | +4.1%+$271.9K |
| MILLENNIUM MANAGEMENT LLC | $6.7M incl. $364.2K options CALL | 346,232 | 0.00% | 8q | HELD |
| VANGUARD FIDUCIARY TRUST CO | $6.6M | 363,136 | 0.00% | 2q | +5.9%+$369.4K |
| RENAISSANCE TECHNOLOGIES LLC | $6.0M | 326,811 | 0.01% | 17q | +0.8%+$49.2K |
| GREAT POINT PARTNERS LLC | $5.5M | 300,000 | 1.03% | 3q | HELD |
| Connor, Clark & Lunn Investment Management Ltd. | $5.3M | 292,500 | 0.01% | 7q | +1.2%+$61.6K |
| JPMORGAN CHASE & CO | $5.2M | 282,631 | 0.00% | 22q | -4.9%-$268.9K |
| TWO SIGMA INVESTMENTS, LP | $5.0M | 272,581 | 0.00% | 4q | -47.8%-$4.5M |
| Bleichroeder LP | $4.6M | 250,000 | 0.81% | 2q | +150.0%+$2.7M |
| UBS Group AG | $4.5M | 248,627 | 0.00% | 22q | +22.8%+$842.1K |
| FMR LLC | $4.4M | 240,115 | 0.00% | 22q | +3220.2%+$4.2M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $4.3M | 238,000 | 0.01% | new | NEW |
| Susquehanna Portfolio Strategies, LLC | $4.3M | 233,842 | 0.07% | 4q | HELD |
| PFM Health Sciences, LP | $3.5M | 192,442 | 0.30% | 3q | -15.4%-$636.7K |
| MOORE CAPITAL MANAGEMENT, LP | $3.5M | 189,946 | 0.05% | 2q | +79.3%+$1.5M |
| Bank of New York Mellon Corp | $3.1M | 171,031 | 0.00% | 22q | +19.0%+$497.6K |
| Squarepoint Ops LLC | $3.1M | 168,117 | 0.00% | new | NEW |
| PRUDENTIAL FINANCIAL INC | $3.1M | 167,555 | 0.00% | 2q | +12.1%+$329.8K |
| WELLINGTON MANAGEMENT GROUP LLP | $3.0M | 164,716 | 0.00% | 10q | +10.1%+$274.8K |
| AMERICAN CENTURY COMPANIES INC | $2.8M | 156,317 | 0.00% | 16q | +8.5%+$222.3K |
| Engineers Gate Manager LP | $2.8M | 153,050 | 0.04% | 5q | +130.9%+$1.6M |
| Trexquant Investment LP | $2.8M | 152,163 | 0.02% | 6q | -9.7%-$297.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.7M incl. $2.2M options CALL+PUT | 26,090 | 0.00% | 14q | -44.9%-$2.2M |
| BARCLAYS PLC | $2.6M | 143,945 | 0.00% | 18q | +2.6%+$66.5K |
| Invesco Ltd. | $2.6M | 143,552 | 0.00% | 11q | -41.2%-$1.8M |
| Jump Financial, LLC | $2.5M | 138,708 | 0.02% | 4q | -28.4%-$1.0M |
| CITIGROUP INC | $2.3M | 124,409 | 0.00% | 22q | -13.7%-$358.8K |
| Assenagon Asset Management S.A. | $2.2M | 123,364 | 0.00% | 9q | -11.1%-$279.4K |
| Quantinno Capital Management LP | $2.0M | 109,876 | 0.00% | 4q | +52.0%+$684.6K |
| Creative Planning | $1.6M | 86,458 | 0.00% | 6q | +44.2%+$482.3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1.5M | 84,178 | 0.00% | 9q | +24.4%+$300.9K |
| Y-Intercept (Hong Kong) Ltd | $1.5M | 80,648 | 0.03% | 2q | -15.5%-$268.9K |
| TD Asset Management Inc | $1.5M | 80,628 | 0.00% | 2q | -29.5%-$615.0K |
| Apis Capital Advisors, LLC | $1.5M | 80,000 | 0.14% | 2q | +33.3%+$364.2K |
| RHUMBLINE ADVISERS | $1.4M | 78,930 | 0.00% | 22q | +16.9%+$207.8K |
| XTX Topco Ltd | $1.4M | 76,965 | 0.02% | 7q | +192.4%+$922.2K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $1.4M | 76,711 | 0.00% | 22q | +1.9%+$25.5K |
| Swiss National Bank | $1.4M | 76,000 | 0.00% | 21q | +30.4%+$322.3K |
| Point72 Asset Management, L.P. | $1.4M | 75,009 | 0.00% | 3q | -91.7%-$15.1M |
| Mariner, LLC | $1.4M | 74,273 | 0.00% | 9q | +18.4%+$210.4K |
| Knott David M Jr | $1.3M | 69,182 | 0.67% | 2q | +185.9%+$819.1K |
| Rafferty Asset Management, LLC | $1.2M | 66,092 | 0.00% | 10q | -4.9%-$61.8K |
| MARSHALL WACE, LLP | $1.2M | 66,051 | 0.00% | 11q | -93.7%-$17.9M |
| Longaeva Partners L.P. | $1.2M | 64,785 | 0.03% | 2q | -64.7%-$2.2M |
| JANE STREET GROUP, LLC | $1.2M CALL+PUT | options only | 0.00% | 14q | OPTIONS |
| Tidal Investments LLC | $1.1M | 62,826 | 0.00% | 2q | +0.6%+$7.4K |
| Tema ETFs LLC | $1.1M | 62,826 | 0.04% | 3q | +0.6%+$7.4K |
| MARTINGALE ASSET MANAGEMENT L P | $1.1M | 61,938 | 0.03% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $1.1M | 75,250 | 0.00% | 21q | +58.0%+$392.5K |
| Corient Private Wealth LP | $999.3K | 54,877 | 0.00% | 2q | +96.8%+$491.5K |
| KENNEDY CAPITAL MANAGEMENT LLC | $965.3K | 53,010 | 0.02% | 7q | +3.0%+$27.7K |
| WELLS FARGO & COMPANY/MN | $933.4K | 51,256 | 0.00% | 14q | +144.8%+$552.1K |
| Soleus Capital Management, L.P. | $910.5K | 50,000 | 0.03% | 2q | -87.8%-$6.6M |
| FRANKLIN RESOURCES INC | $771.1K | 42,345 | 0.00% | new | NEW |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $733.0K | 40,253 | 0.00% | 22q | +32.4%+$179.5K |
| ALGERT GLOBAL LLC | $671.1K | 36,851 | 0.01% | 12q | -66.4%-$1.3M |
| Vanguard Global Advisers, LLC | $669.7K | 36,777 | 0.00% | 2q | +35.9%+$176.8K |
| Fisher Asset Management, LLC | $655.5K | 35,998 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $650.9K | 35,746 | 0.00% | 22q | +16.0%+$89.8K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $648.7K | 35,535 | 0.00% | 9q | +17.9%+$98.3K |
| IEQ CAPITAL, LLC | $614.0K | 33,720 | 0.00% | 2q | +21.6%+$109.0K |
| PROFUND ADVISORS LLC | $608.3K | 33,403 | 0.02% | 3q | +6.9%+$39.2K |
| VANGUARD ASSET MANAGEMENT, Ltd | $585.2K | 32,137 | 0.00% | 2q | +60.3%+$220.2K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $577.5K | 31,713 | 0.00% | new | NEW |
| Leonteq Securities AG | $546.3K | 30,000 | 0.02% | 2q | +200.0%+$364.2K |
| Verdad Advisers, LP | $527.9K | 28,987 | 0.51% | 2q | +130.0%+$298.3K |
| Russell Investments Group, Ltd. | $520.5K | 28,584 | 0.00% | 6q | +569.1%+$442.7K |
| ExodusPoint Capital Management, LP | $519.7K | 28,537 | 0.00% | new | NEW |
| OPTIMIZE FINANCIAL INC. | $511.0K | 28,061 | 0.18% | 2q | HELD |
| Sound Capital Solutions LLC | $511.0K | 28,061 | 0.12% | new | FIRST |
Showing the largest 100 of 184 reported holders.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | Michaelson Jennifer | Chief Scientific Officer | Sold | 30,000 | $607.8K |
| 2026-09-08 | Michaelson Jennifer | Chief Scientific Officer | Sold | 8,000 | $172.6K |
| 2026-07-06 | Michaelson Jennifer | Chief Scientific Officer | Sold | 8,000 | $142.6K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 25 | $3.3M | 217,733 | 3 | 9 | 5 | 0.0% |
| Q2 2026 | 184 | $1.3B | 71,705,257 | 30 | 83 | 46 | 0.5% |
| Q1 2026 | 173 | $934.9M | 65,558,945 | 34 | 59 | 41 | 0.4% |
| Q4 2025 | 154 | $658.4M | 63,187,608 | 26 | 64 | 40 | 0.7% |
| Q3 2025 | 144 | $362.8M | 61,107,678 | 26 | 54 | 37 | 0.1% |
| Q2 2025 | 144 | $479.1M | 62,614,685 | 19 | 48 | 42 | 1.6% |
| Q1 2025 | 148 | $490.0M | 64,683,969 | 24 | 44 | 50 | 0.1% |
| Q4 2024 | 146 | $801.0M | 65,600,618 | 22 | 52 | 36 | 0.3% |
| Q3 2024 | 137 | $1.1B | 65,049,842 | 19 | 65 | 25 | 1.2% |
| Q2 2024 | 135 | $1.1B | 62,964,041 | 39 | 60 | 26 | 0.3% |
| Q1 2024 | 113 | $711.2M | 41,722,918 | 19 | 39 | 37 | 0.1% |
| Q4 2023 | 113 | $385.7M | 37,829,596 | 21 | 43 | 23 | 0.1% |
| Q3 2023 | 104 | $346.9M | 38,260,826 | 14 | 34 | 28 | 0.2% |
| Q2 2023 | 106 | $397.7M | 36,881,040 | 27 | 28 | 38 | 0.1% |
| Q1 2023 | 99 | $330.9M | 32,338,833 | 16 | 31 | 30 | 0.0% |
| Q4 2022 | 95 | $397.7M | 37,699,399 | 11 | 37 | 24 | 0.0% |
| Q3 2022 | 93 | $560.3M | 43,660,428 | 17 | 33 | 26 | 0.1% |
| Q2 2022 | 84 | $569.2M | 44,371,866 | 21 | 23 | 22 | 0.1% |
| Q1 2022 | 80 | $448.9M | 42,672,551 | 12 | 20 | 28 | 0.4% |
| Q4 2021 | 74 | $674.4M | 43,818,061 | 16 | 28 | 14 | 0.0% |
| Q3 2021 | 64 | $929.3M | 41,265,167 | 6 | 30 | 10 | 0.0% |
| Q2 2021 | 70 | $5.2B | 200,957,738 | 17 | 21 | 19 | 0.0% |
| Q1 2021 | 69 | $1.5B | 35,769,616 | 69 | 0 | 0 | 0.0% |