Company · Ownership research

Cullinan Therapeutics, Inc. CGEM

CIK 0001789972 · CUSIP 230031106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 230031106 (CGEM), not CUSIP 230031956 (CGEM), CUSIP 230031906 (CGEM), and does not merge CUSIPs.

This page lists the top 20 of 174 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Lynx1 Capital Management LP CIK 1910456 · View history	$127.37M 8,963,500 shares	20.13%	0(0.00%)Unchanged	SEC filing ↗ May 4, 2026	▾
02	MPM BIOIMPACT LLC CIK 1687078 · View history	$108.68M 7,648,268 shares	8.39%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
03	BVF INC/IL CIK 1056807 · View history	$81.72M 5,750,683 shares	2.60%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
04	BlackRock, Inc. CIK 2012383 · View history	$63.23M 4,449,966 shares	0.00%	+49.67K(+1.10%)Added	SEC filing ↗ May 13, 2026	▾
05	Kynam Capital Management, LP CIK 1907884 · View history	$44.25M 3,114,132 shares	2.81%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
06	STATE STREET CORP CIK 93751 · View history	$36.15M 2,544,115 shares	0.00%	+346.78K(+15.80%)Added	SEC filing ↗ May 15, 2026	▾
07	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$35.28M 2,483,034 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
08	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$28.84M 2,029,719 shares	0.00%	+1.98M(+4,201.40%)Added	SEC filing ↗ May 15, 2026	▾
09	Blue Owl Capital Holdings LP CIK 1858703 · View history	$27.14M 1,909,764 shares	7.29%	-441.21K(-18.80%)Reduced	SEC filing ↗ May 14, 2026	▾
10	RTW INVESTMENTS, LP CIK 1493215 · View history	$24.24M 1,705,960 shares	0.24%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
11	VR Adviser, LLC CIK 1615982 · View history	$19.61M 1,379,965 shares	0.73%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$19.45M 1,368,268 shares	0.00%	+66.01K(+5.10%)Added	SEC filing ↗ May 15, 2026	▾
13	Siren, L.L.C. CIK 2005245 · View history	$16.96M 1,193,410 shares	0.47%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2026	▾
14	Nextech Invest, Ltd. CIK 1595430 · View history	$16.22M 1,141,145 shares	1.14%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
15	BOOTHBAY FUND MANAGEMENT, LLC CIK 1549230 · View history	$15.81M 1,112,803 shares	0.37%	-124.24K(-10.00%)Reduced	SEC filing ↗ May 15, 2026	▾
16	MARSHALL WACE, LLP CIK 1318757 · View history	$14.91M 1,049,581 shares	0.02%	+635.22K(+153.30%)Added	SEC filing ↗ May 15, 2026	▾
17	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$12.87M 906,028 shares	0.00%	+57.26K(+6.70%)Added	SEC filing ↗ May 7, 2026	▾
18	Point72 Asset Management, L.P. CIK 1603466 · View history	$12.87M 905,376 shares	0.02%	+545.21K(+151.40%)Added	SEC filing ↗ May 15, 2026	▾
19	Nuveen, LLC CIK 1871926 · View history	$11.45M 805,700 shares	0.00%	+226.60K(+39.10%)Added	SEC filing ↗ Apr 30, 2026	▾
20	Affinity Asset Advisors, LLC CIK 1773195 · View history	$11.10M 781,260 shares	0.65%	-1.15M(-59.60%)Reduced	SEC filing ↗ May 14, 2026	▾

Showing 20 / 174 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

174

Cancelled or null records excluded

Disclosed shares

65,558,955

Not deduplicated across managers

Disclosed value

$931.03M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Cullinan Therapeutics, Inc. · Q1 2026

Explore all 174 reporting institutions.

This page includes 20 of 174 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.