Cullinan Therapeutics CGEM Institutional Ownership

NASDAQ CGEM

$14.89 +0.06 (+0.40%)

At close: Oct 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

182 Institutions

Increased 114 62.6%

Unchanged 21 11.5%

Reduced 47 25.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

71.58Mn

of 64.35Mn outstanding

▲+9.18% QoQ

Shares Outstanding

64.35Mn

Institutional Investors

182

filed 13F for Jun 2026

▲+8 vs prior quarter

Net Shares Added (QoQ)

+6.02Mn

accumulated since last quarter

Value of Holdings

$1.06Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Cullinan Therapeutics, Inc. (NASDAQ:CGEM) had 182 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

Total holdings of Cullinan Therapeutics shares rose 9.18% from Q1 2026, and the number of holders rose 30.00% from Q2 2025.
Among the 182 holders of Cullinan Therapeutics, 114 added to their positions, 47 reduced their stakes and 21 left their positions unchanged.
In total, institutional investors held 71.58Mn shares of Cullinan Therapeutics at the end of Q2 2026, up 6.02Mn from the prior quarter and up 11.83Mn from a year earlier.
As of June 30, 2026, the biggest holder of Cullinan Therapeutics was MPM BioImpact LLC with 9.73Mn shares.
The biggest increases in CGEM positions during Q2 2026 came from MPM BioImpact LLC (+2.08Mn shares), T. Rowe Price Associates Inc (+1.8Mn shares), State Street Corp (+1.12Mn shares), BlackRock, Inc. (+782.8K shares) and Siren, L.L.C. (+700K shares).
Among holders that kept a stake in Cullinan Therapeutics, the biggest sellers in Q2 2026 were Marshall Wace, LLP (-983.53K shares), Point72 Asset Management, L.P. (-830.37K shares), Blue Owl Capital Holdings LP (-370K shares), Soleus Capital Management, L.P. (-360.2K shares) and Nuveen, LLC (-333.75K shares).
According to Business Quant data, the leading holders of CGEM for Q2 2026 were MPM BioImpact LLC (9.73Mn shares), Lynx1 Capital Management LP (8.96Mn shares), BVF Inc (5.75Mn shares), BlackRock, Inc. (5.23Mn shares), T. Rowe Price Associates Inc (3.83Mn shares), State Street Corp (3.67Mn shares), Kynam Capital Management, LP (3.11Mn shares), Vanguard Capital Management LLC (2.61Mn shares), RTW Investments, LP (2.36Mn shares) and Siren, L.L.C. (1.89Mn shares).

Form 13F Holdings

182 Institutional Holders

Report period 30 Jun, 2026

Total shares held 71.58Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	MPM BioImpact LLC	0001687078	9,731,341	15.12%	▲2,083,073	+27.24%	$177.21Mn
2	Lynx1 Capital Management LP	0001910456	8,963,500	13.93%	0	0.00%	$163.23Mn
3	BVF INC/IL	0001056807	5,750,683	8.94%	0	0.00%	$104.72Mn
4	BlackRock, Inc.	0002012383	5,232,766	8.13%	▲782,800	+17.59%	$95.29Mn
5	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	3,825,950	5.95%	▲1,796,231	+88.50%	$69.67K
6	State Street Corp	0000093751	3,668,627	5.70%	▲1,124,512	+44.20%	$66.81Mn
7	Kynam Capital Management, LP	0001907884	3,114,132	4.84%	0	0.00%	$56.71Mn
8	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,614,066	4.06%	▲131,032	+5.28%	$47.60Mn
9	RTW INVESTMENTS, LP	0001493215	2,364,347	3.67%	▲658,387	+38.59%	$43.05Mn
10	Siren, L.L.C.	0002005245	1,893,410	2.94%	▲700,000	+58.66%	$34.48Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,547,309	2.40%	▲179,041	+13.09%	$28.18Mn
12	Blue Owl Capital Holdings LP	0001858703	1,539,764	2.39%	▼370,000	-19.37%	$28.04Mn
13	Venrock Adviser, LLC	0001615982	1,379,965	2.14%	0	0.00%	$25.13Mn
14	BOOTHBAY FUND MANAGEMENT, LLC	0001549230	1,082,611	1.68%	▼30,192	-2.71%	$19.71Mn
15	DIMENSIONAL FUND ADVISORS LP	0000354204	1,046,694	1.63%	▲140,666	+15.53%	$19.06Mn
16	Goldman Sachs Group Inc	0000886982	1,001,598	1.56%	▲546,149	+119.91%	$18.24Mn
17	Affinity Asset Advisors, LLC	0001773195	875,760	1.36%	▲94,500	+12.10%	$15.95Mn
18	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	738,741	1.15%	▲186,188	+33.70%	$13.45Mn
19	BOONE CAPITAL MANAGEMENT LLC	0001882053	704,442	1.09%	▲704,442	0.00%	$12.83Mn
20	Elmind Capital, LP	0002052213	690,000	1.07%	▲160,000	+30.19%	$12.56Mn

Showing 1 to 20 of 182 holders