CULLINAN THERAPEUTICS INC (CGEM) Institutional Shareholders
CULLINAN THERAPEUTICS INC (CGEM) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.30B in CGEM holdings during the latest filing period.
Mpm Bioimpact Llc is currently the largest disclosed institutional shareholder of CGEM tracked by InsiderSet, reporting ownership valued at approximately $177.21M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $205.14M, representing an estimated gain of +15.76% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 66% of the total disclosed CGEM value among the investors covered in this analysis. Major shareholders include Mpm Bioimpact Llc, Lynx1 Capital Management Lp, Bvf Inc/Il, and several other long-term asset managers with concentrated positions in CULLINAN THERAPEUTICS INC (CGEM).
This page ranks the largest institutional CGEM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
177
Total Reported Value
$1.30B
Largest Holder
Mpm Bioimpact Llc
Largest Position
$177.21M
Insider Transactions (90d)
7
Latest Filing Quarter
Q2 2026
New Institutional Positions
67
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Mpm Bioimpact Llc | 10.81% | 9,731,341 | $177,207,720 | $205,136,668 | +$27,928,948 | +15.76% | |
| Lynx1 Capital Management Lp | 18.86% | 8,963,500 | $163,225,335 | $188,950,580 | +$25,725,245 | +15.76% | |
| Bvf Inc/Il | 2.68% | 5,750,683 | $104,719,937 | $121,224,398 | +$16,504,461 | +15.76% | |
| Blackrock, Inc. | 0.00% | 5,232,766 | $95,288,670 | $110,306,707 | +$15,018,037 | +15.76% | |
| Price T Rowe Associates Inc | 0.01% | 3,825,950 | $69,672,000 | $80,651,026 | +$10,979,026 | +15.76% | |
| State Street Corp | 0.00% | 3,668,627 | $66,805,698 | $77,334,657 | +$10,528,959 | +15.76% | |
| Kynam Capital Management, Lp | 3.13% | 3,114,132 | $56,708,344 | $65,645,903 | +$8,937,559 | +15.76% | |
| Vanguard Capital Management Llc | 0.00% | 2,614,066 | $47,602,142 | $55,104,511 | +$7,502,369 | +15.76% | |
| Rtw Investments, Lp | 0.37% | 2,364,347 | $43,054,759 | $49,840,435 | +$6,785,676 | +15.76% | |
| Siren, L.L.C. | 0.70% | 1,893,410 | $34,478,996 | $39,913,083 | +$5,434,087 | +15.76% | |
| Geode Capital Management, Llc | 0.00% | 1,547,309 | $28,182,326 | $32,617,274 | +$4,434,948 | +15.74% | |
| Blue Owl Capital Holdings Lp | 4.26% | 1,539,764 | $28,039,102 | $32,458,225 | +$4,419,123 | +15.76% | |
| Venrock Adviser, Llc | 0.76% | 1,379,965 | $25,129,163 | $29,089,662 | +$3,960,499 | +15.76% | |
| Boothbay Fund Management, Llc | 0.37% | 1,082,611 | $19,714,346 | $22,821,440 | +$3,107,094 | +15.76% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,046,694 | $19,061,499 | $22,064,310 | +$3,002,811 | +15.75% | |
| Goldman Sachs Group Inc | 0.00% | 1,001,598 | $18,239,100 | $21,113,686 | +$2,874,586 | +15.76% | |
| Affinity Asset Advisors, Llc | 0.78% | 875,760 | $15,947,590 | $18,461,021 | +$2,513,431 | +15.76% | |
| Vanguard Portfolio Management Llc | 0.00% | 738,741 | $13,452,474 | $15,572,660 | +$2,120,186 | +15.76% | |
| Boone Capital Management Llc | 3.00% | 704,442 | $12,827,889 | $14,849,637 | +$2,021,748 | +15.76% | |
| Elmind Capital, Lp | 3.16% | 690,000 | $12,564,900 | $14,545,200 | +$1,980,300 | +15.76% | |
| Morgan Stanley | 0.00% | 629,035 | $11,454,726 | $13,260,058 | +$1,805,332 | +15.76% | |
| Twin Focus Capital Partners, Llc | 1.10% | 595,489 | $10,843,855 | $12,552,908 | +$1,709,053 | +15.76% | |
| Aqr Capital Management Llc | 0.00% | 581,338 | $10,586,165 | $12,254,605 | +$1,668,440 | +15.76% | |
| Northern Trust Corp | 0.00% | 571,080 | $10,399,367 | $12,038,366 | +$1,638,999 | +15.76% | |
| Bank Of America Corp | 0.00% | 510,325 | $9,293,018 | $10,757,651 | +$1,464,633 | +15.76% | |
| Nuveen, Llc | 0.00% | 471,947 | $8,594,154 | $9,948,643 | +$1,354,489 | +15.76% | |
| Charles Schwab Investment Management Inc | 0.00% | 464,034 | $8,450,059 | $9,781,837 | +$1,331,778 | +15.76% | |
| Perceptive Advisors Llc | 0.12% | 426,478 | $7,766,164 | $8,990,156 | +$1,223,992 | +15.76% | |
| Tcg Crossover Management, Llc | 0.18% | 406,786 | $7,407,573 | $8,575,049 | +$1,167,476 | +15.76% | |
| Citadel Advisors Llc | 0.00% | 397,484 | $7,238,184 | $8,378,963 | +$1,140,779 | +15.76% | |
| Deutsche Bank Ag\ | 0.00% | 382,840 | $6,971,516 | $8,070,267 | +$1,098,751 | +15.76% | |
| Vanguard Fiduciary Trust Co | 0.00% | 363,136 | $6,612,707 | $7,654,907 | +$1,042,200 | +15.76% | |
| Millennium Management Llc | 0.00% | 346,232 | $6,304,885 | $7,298,571 | +$993,686 | +15.76% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 326,811 | $5,951,228 | $6,889,176 | +$937,948 | +15.76% |
| Great Point Partners Llc | 1.29% | 300,000 | $5,463,000 | $6,324,000 | +$861,000 | +15.76% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 292,500 | $5,326,425 | $6,165,900 | +$839,475 | +15.76% | |
| Jpmorgan Chase & Co | 0.00% | 282,631 | $5,206,063 | $5,957,861 | +$751,798 | +14.44% | |
| Two Sigma Investments, Lp | 0.00% | 272,581 | $4,963,700 | $5,746,007 | +$782,307 | +15.76% | |
| Bleichroeder Lp | 0.81% | 250,000 | $4,552,500 | $5,270,000 | +$717,500 | +15.76% | |
| Ubs Group Ag | 0.00% | 248,627 | $4,527,498 | $5,241,057 | +$713,559 | +15.76% | |
| Fmr Llc | 0.00% | 240,115 | $4,372,486 | $5,061,624 | +$689,138 | +15.76% | |
| Adage Capital Partners Gp, L.L.C. | 0.01% | 238,000 | $4,333,980 | $5,017,040 | +$683,060 | +15.76% | |
| Susquehanna Portfolio Strategies, Llc | 0.07% | 233,842 | $4,258,263 | $4,929,389 | +$671,126 | +15.76% | |
| Pfm Health Sciences, Lp | 0.30% | 192,442 | $3,504,369 | $4,056,677 | +$552,308 | +15.76% | |
| Moore Capital Management, Lp | 0.08% | 189,946 | $3,458,917 | $4,004,062 | +$545,145 | +15.76% | |
| Bank Of New York Mellon Corp | 0.00% | 171,031 | $3,114,469 | $3,605,333 | +$490,864 | +15.76% | |
| Squarepoint Ops Llc | 0.01% | 168,117 | $3,061,411 | $3,543,906 | +$482,495 | +15.76% | |
| Prudential Financial Inc | 0.00% | 167,555 | $3,051,177 | $3,532,059 | +$480,882 | +15.76% | |
| Wellington Management Group Llp | 0.00% | 164,716 | $2,999,478 | $3,472,213 | +$472,735 | +15.76% | |
| American Century Companies Inc | 0.00% | 156,317 | $2,846,533 | $3,295,162 | +$448,629 | +15.76% |
Frequently asked questions about CGEM
Who owns the most CGEM stock?
The largest holders of CGEM are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CULLINAN THERAPEUTICS INC (CGEM).
Is CGEM widely held by superinvestors?
Many widely followed stocks like CGEM appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CGEM is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.