Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Cullinan Therapeutics, Inc.

CIK 0001789972CGEM· quarter ending 2026-06-30
Shares outstanding
64,354,694
Held by 13F filers
71,705,257
111.4% of shares outstanding
Holders
183
+9 vs 2026-03-31 · 31 new, 22 exited
Value
$1.3B
shares +9.4% vs prior quarter
13F holdings exceed the share count. This is normal for heavily shorted stocks: shares lent to short sellers are reported by the lender and again by whoever bought them. Related filers occasionally report the same position twice as well.

Share classes (cover page of the 10-Q filed 2026-08-06, as of 2026-07-31)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common stockCGEM · NASDAQ64,354,69471,705,257111.4%183230031106

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine
CountCUSIPClass (as filers write it)HoldersShares heldClass shares% of classValueOptionsMapped via
230031106COM18371,705,25764,354,694111.4%$1.3B4 call / 3 put13DGholders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (183 of 183 · 230031106)

change vs 2026-03-31
#FilerShares% of classValueChange
1MPM BIOIMPACT LLC9,731,34115.12%$177.2M+2,083,073 (+27.2%)
2Lynx1 Capital Management LP8,963,50013.93%$163.2M—
3BVF INC/IL5,750,6838.94%$104.7M—
4BlackRock, Inc.5,232,7668.13%$95.3M+782,800 (+17.6%)
5PRICE T ROWE ASSOCIATES INC /MD/3,825,9505.95%$69.7M+1,796,231 (+88.5%)
6STATE STREET CORP3,668,6275.70%$66.8M+1,124,512 (+44.2%)
7Kynam Capital Management, LP3,114,1324.84%$56.7M—
8VANGUARD CAPITAL MANAGEMENT LLC2,614,0664.06%$47.6M+131,032 (+5.3%)
9RTW INVESTMENTS, LP2,364,3473.67%$43.1M+658,387 (+38.6%)
10Siren, L.L.C.1,893,4102.94%$34.5M+700,000 (+58.7%)
11GEODE CAPITAL MANAGEMENT, LLC1,547,3092.40%$28.2M+179,041 (+13.1%)
12Blue Owl Capital Holdings LP1,539,7642.39%$28.0M-370,000 (-19.4%)
13Venrock Adviser, LLC1,379,9652.14%$25.1M—
14BOOTHBAY FUND MANAGEMENT, LLC1,082,6111.68%$19.7M-30,192 (-2.7%)
15DIMENSIONAL FUND ADVISORS LP1,046,6941.63%$19.1M+140,666 (+15.5%)
16GOLDMAN SACHS GROUP INC1,001,5981.56%$18.2M+546,149 (+119.9%)
17Affinity Asset Advisors, LLC875,7601.36%$15.9M+94,500 (+12.1%)
18VANGUARD PORTFOLIO MANAGEMENT LLC738,7411.15%$13.5M+186,188 (+33.7%)
19BOONE CAPITAL MANAGEMENT LLC704,4421.09%$12.8MNEW
20Elmind Capital, LP690,0001.07%$12.6M+160,000 (+30.2%)
21MORGAN STANLEY629,0350.98%$11.5M+39,552 (+6.7%)
22TWIN FOCUS CAPITAL PARTNERS, LLC595,4890.93%$10.8M—
23AQR CAPITAL MANAGEMENT LLC581,3380.90%$10.6M+220,464 (+61.1%)
24NORTHERN TRUST CORP571,0800.89%$10.4M+121,822 (+27.1%)
25BANK OF AMERICA CORP /DE/510,3250.79%$9.3M-6,399 (-1.2%)
26Nuveen, LLC471,9470.73%$8.6M-333,753 (-41.4%)
27CHARLES SCHWAB INVESTMENT MANAGEMENT INC464,0340.72%$8.5M+31,141 (+7.2%)
28PERCEPTIVE ADVISORS LLC426,4780.66%$7.8MNEW
29TCG Crossover Management, LLC406,7860.63%$7.4M—
30CITADEL ADVISORS LLC397,4840.62%$7.2M+144,706 (+57.2%)
31DEUTSCHE BANK AG\382,8400.59%$7.0M+14,934 (+4.1%)
32VANGUARD FIDUCIARY TRUST CO363,1360.56%$6.6M+20,284 (+5.9%)
33MILLENNIUM MANAGEMENT LLC346,2320.54%$6.3M-350 (-0.1%)
34RENAISSANCE TECHNOLOGIES LLC326,8110.51%$6.0M+2,700 (+0.8%)
35GREAT POINT PARTNERS LLC300,0000.47%$5.5M—
36Connor, Clark & Lunn Investment Management Ltd.292,5000.45%$5.3M+3,385 (+1.2%)
37JPMORGAN CHASE & CO282,6310.44%$5.2M-14,600 (-4.9%)
38TWO SIGMA INVESTMENTS, LP272,5810.42%$5.0M-249,466 (-47.8%)
39Bleichroeder LP250,0000.39%$4.6M+150,000 (+150.0%)
40UBS Group AG248,6270.39%$4.5M+46,242 (+22.8%)
41FMR LLC240,1150.37%$4.4M+232,883 (+3220.2%)
42ADAGE CAPITAL PARTNERS GP, L.L.C.238,0000.37%$4.3MNEW
43Susquehanna Portfolio Strategies, LLC233,8420.36%$4.3M—
44PFM Health Sciences, LP192,4420.30%$3.5M-34,964 (-15.4%)
45MOORE CAPITAL MANAGEMENT, LP189,9460.30%$3.5M+83,986 (+79.3%)
46Bank of New York Mellon Corp171,0310.27%$3.1M+27,323 (+19.0%)
47Squarepoint Ops LLC168,1170.26%$3.1MNEW
48PRUDENTIAL FINANCIAL INC167,5550.26%$3.1M+18,110 (+12.1%)
49WELLINGTON MANAGEMENT GROUP LLP164,7160.26%$3.0M+15,090 (+10.1%)
50AMERICAN CENTURY COMPANIES INC156,3170.24%$2.8M+12,210 (+8.5%)
51Engineers Gate Manager LP153,0500.24%$2.8M+86,762 (+130.9%)
52Trexquant Investment LP152,1630.24%$2.8M-16,310 (-9.7%)
53BARCLAYS PLC143,9450.22%$2.6M+3,650 (+2.6%)
54Invesco Ltd.143,5520.22%$2.6M-100,598 (-41.2%)
55Jump Financial, LLC138,7080.22%$2.5M-55,092 (-28.4%)
56CITIGROUP INC124,4090.19%$2.3M-19,702 (-13.7%)
57Assenagon Asset Management S.A.123,3640.19%$2.2M-15,341 (-11.1%)
58Quantinno Capital Management LP109,8760.17%$2.0M+37,594 (+52.0%)
59Creative Planning86,4580.13%$1.6M+26,484 (+44.2%)
60UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC84,1780.13%$1.5M+16,522 (+24.4%)
61Y-Intercept (Hong Kong) Ltd80,6480.13%$1.5M-14,769 (-15.5%)
62TD Asset Management Inc80,6280.13%$1.5M-33,772 (-29.5%)
63Apis Capital Advisors, LLC80,0000.12%$1.5M+20,000 (+33.3%)
64RHUMBLINE ADVISERS78,9300.12%$1.4M+11,414 (+16.9%)
65XTX Topco Ltd76,9650.12%$1.4M+50,641 (+192.4%)
66MANUFACTURERS LIFE INSURANCE COMPANY, THE76,7110.12%$1.4M+1,401 (+1.9%)
67Swiss National Bank76,0000.12%$1.4M+17,700 (+30.4%)
68ALLIANCEBERNSTEIN L.P.75,2500.12%$1.1M+27,620 (+58.0%)
69Point72 Asset Management, L.P.75,0090.12%$1.4M-830,367 (-91.7%)
70Mariner, LLC74,2730.12%$1.4M+11,555 (+18.4%)
71Knott David M Jr69,1820.11%$1.3M+44,982 (+185.9%)
72Rafferty Asset Management, LLC66,0920.10%$1.2M-3,393 (-4.9%)
73MARSHALL WACE, LLP66,0510.10%$1.2M-983,530 (-93.7%)
74Longaeva Partners L.P.64,7850.10%$1.2M-118,906 (-64.7%)
75Tema ETFs LLC62,8260.10%$1.1M+405 (+0.6%)
76Tidal Investments LLC62,8260.10%$1.1M+405 (+0.6%)
77MARTINGALE ASSET MANAGEMENT L P61,9380.10%$1.1MNEW
78Corient Private Wealth LP54,8770.09%$999K+26,992 (+96.8%)
79KENNEDY CAPITAL MANAGEMENT LLC53,0100.08%$965K+1,519 (+3.0%)
80WELLS FARGO & COMPANY/MN51,2560.08%$933K+30,317 (+144.8%)
81Soleus Capital Management, L.P.50,0000.08%$911K-360,200 (-87.8%)
82FRANKLIN RESOURCES INC42,3450.07%$771KNEW
83CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM40,2530.06%$733K+9,856 (+32.4%)
84ALGERT GLOBAL LLC36,8510.06%$671K-72,880 (-66.4%)
85Vanguard Global Advisers, LLC36,7770.06%$670K+9,711 (+35.9%)
86Fisher Asset Management, LLC35,9980.06%$656KNEW
87MetLife Investment Management, LLC35,7460.06%$651K+4,930 (+16.0%)
88MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.35,5350.06%$649K+5,384 (+17.9%)
89IEQ CAPITAL, LLC33,7200.05%$614K+5,984 (+21.6%)
90PROFUND ADVISORS LLC33,4030.05%$608K+2,152 (+6.9%)
91VANGUARD ASSET MANAGEMENT, Ltd32,1370.05%$585K+12,092 (+60.3%)
92MASSACHUSETTS FINANCIAL SERVICES CO /MA/31,7130.05%$577KNEW
93Leonteq Securities AG30,0000.05%$546K+20,000 (+200.0%)
94Verdad Advisers, LP28,9870.05%$528K+16,383 (+130.0%)
95Russell Investments Group, Ltd.28,5840.04%$521K+24,312 (+569.1%)
96ExodusPoint Capital Management, LP28,5370.04%$520KNEW
97OPTIMIZE FINANCIAL INC.28,0610.04%$511K-97 (-0.3%)
98Sound Capital Solutions LLC28,0610.04%$511KNEW
99Legal & General Group Plc27,4770.04%$500K+8,776 (+46.9%)
100SUSQUEHANNA INTERNATIONAL GROUP, LLP26,0900.04%$475K-21,287 (-44.9%)
101PANAGORA ASSET MANAGEMENT INC24,3960.04%$444KNEW
102Virtus Investment Advisers, LLC23,8830.04%$435K+1,008 (+4.4%)
103TUDOR INVESTMENT CORP ET AL22,5180.03%$410K-6,470 (-22.3%)
104MERCER GLOBAL ADVISORS INC /ADV21,9220.03%$399K+7,813 (+55.4%)
105NEW YORK STATE COMMON RETIREMENT FUND21,2180.03%$386K+8,300 (+64.3%)
106AlphaCentric Advisors LLC20,4260.03%$372K+291 (+1.4%)
107Zurcher Kantonalbank (Zurich Cantonalbank)20,3480.03%$371K+1,281 (+6.7%)
108ACADIAN ASSET MANAGEMENT LLC20,2790.03%$366KNEW
109STATE OF WISCONSIN INVESTMENT BOARD20,0500.03%$365KNEW
110Birchview Capital, LP20,0000.03%$364K—
111Qube Research & Technologies Ltd19,9360.03%$363K-70,380 (-77.9%)
112SG Americas Securities, LLC19,0580.03%$347K+3,579 (+23.1%)
113Jupiter Topco LLC18,5280.03%$337KNEW
114Police & Firemen's Retirement System of New Jersey17,8410.03%$325K+2,845 (+19.0%)
115SIMPLEX TRADING, LLC17,4440.03%$318K-187 (-1.1%)
116TWO SIGMA SECURITIES, LLC15,2200.02%$277KNEW
117AXQ CAPITAL, LP14,9350.02%$272KNEW
118SEI INVESTMENTS CO13,4460.02%$245KNEW
119INTECH INVESTMENT MANAGEMENT LLC12,4180.02%$226K-2,495 (-16.7%)
120Pale Fire Capital SE12,4180.02%$226K-1,800 (-12.7%)
121State of New Jersey Common Pension Fund D12,2320.02%$223K+2,137 (+21.2%)
122VOYA INVESTMENT MANAGEMENT LLC11,8150.02%$215KNEW
123GREAT LAKES ADVISORS, LLC11,8060.02%$215K—
124Inscription Capital, LLC11,6610.02%$212K—
125EntryPoint Capital, LLC11,5560.02%$210KNEW
126WEALTH ENHANCEMENT ADVISORY SERVICES, LLC11,1680.02%$202KNEW
127Campbell & CO Investment Adviser LLC11,0900.02%$202KNEW
128GROUP ONE TRADING LLC10,7630.02%$196K+1,907 (+21.5%)
129ARIZONA STATE RETIREMENT SYSTEM10,4380.02%$190KNEW
130China Universal Asset Management Co., Ltd.9,7810.02%$178K-703 (-6.7%)
131Quarry LP9,6720.02%$176K+72 (+0.8%)
132BNP PARIBAS FINANCIAL MARKETS9,4880.01%$173K-20,055 (-67.9%)
133LOS ANGELES CAPITAL MANAGEMENT LLC7,6410.01%$139K+7,335 (+2397.1%)
134Vanguard Investments Australia, Ltd.7,2720.01%$132K—
135KLP KAPITALFORVALTNING AS6,8000.01%$124K—
136ROYAL BANK OF CANADA5,8200.01%$106K+1,776 (+43.9%)
137Ameritas Investment Partners, Inc.5,4900.01%$100K+1,185 (+27.5%)
138SIGNATUREFD, LLC3,2070.00%$58K-2,343 (-42.2%)
139Tower Research Capital LLC (TRC)3,1910.00%$58K-941 (-22.8%)
140Quantbot Technologies LP2,9110.00%$53K+2,789 (+2286.1%)
141Allworth Financial LP2,8930.00%$53K+1,747 (+152.4%)
142Mirae Asset Global Investments Co., Ltd.2,7490.00%$50K-332 (-10.8%)
143Arax Advisory Partners2,6250.00%$48K+2,275 (+650.0%)
144GAMMA Investing LLC1,9280.00%$35K+169 (+9.6%)
145Parallel Advisors, LLC1,8730.00%$34K-22 (-1.2%)
146Capital Advisors, Ltd. LLC1,6000.00%$29K—
147NISA INVESTMENT ADVISORS, LLC1,4420.00%$26K-4,358 (-75.1%)
148OSAIC HOLDINGS, INC.1,3900.00%$25K+1,006 (+262.0%)
149GF FUND MANAGEMENT CO. LTD.1,2520.00%$23K-66 (-5.0%)
150Sterling Capital Management LLC1,2190.00%$22K-580 (-32.2%)
151Pacer Advisors, Inc.1,1040.00%$20KNEW
152STRS OHIO1,0000.00%$18KNEW
153Nykredit A/S9480.00%$17KNEW
154Farther Finance Advisors, LLC8490.00%$15K+244 (+40.3%)
155Bangor Savings Bank8420.00%$15K—
156EverSource Wealth Advisors, LLC7930.00%$14K-306 (-27.8%)
157IFP Advisors, Inc7280.00%$13K+415 (+132.6%)
158UMB Bank, n.a.6850.00%$12K—
159BNP PARIBAS ASSET MANAGEMENT Holding S.A.6830.00%$12K-239 (-25.9%)
160Rockefeller Capital Management L.P.6490.00%$12K—
161US BANCORP \DE\5170.00%$9K+15 (+3.0%)
162Essential Partners LLC5100.00%$9K-290 (-36.3%)
163FEDERATED HERMES, INC.3880.00%$7K-128 (-24.8%)
164Caitong International Asset Management Co., Ltd3150.00%$6KNEW
165Larson Financial Group LLC2790.00%$5K-75 (-21.2%)
166ROTHSCHILD INVESTMENT LLC2530.00%$5K+64 (+33.9%)
167Federation des caisses Desjardins du Quebec2500.00%$5K-1,750 (-87.5%)
168Avion Wealth2000.00%$3KNEW
169Fortitude Family Office, LLC1920.00%$3K—
170Optiver Holding B.V.1400.00%$3K-264 (-65.3%)
171SJS Investment Consulting Inc.1210.00%$2K+78 (+181.4%)
172Wealth Enhancement Trust Services, Inc.790.00%$1KNEW
173True Wealth Design, LLC710.00%$1K+17 (+31.5%)
174Silver Grove Financial Group, Inc.710.00%$1KNEW
175Covestor Ltd330.00%$1K+23 (+230.0%)
176MassMutual Private Wealth & Trust, FSB270.00%$492—
177Smartleaf Asset Management LLC260.00%$479—
178NATIONAL BANK OF CANADA /FI/230.00%$419NEW
179PNC Financial Services Group, Inc.150.00%$273-3 (-16.7%)
180Clearstead Advisors, LLC150.00%$275NEW
181Basecamp Wealth Advisors LLC140.00%$255-13 (-48.1%)
182FIFTH THIRD BANCORP30.00%$55-60 (-95.2%)
183SBI Securities Co., Ltd.10.00%$18—
Exited since 2026-03-31 (22 filers; largest 22 shown)
Nextech Invest, Ltd.−1,141,145
DEERFIELD MANAGEMENT COMPANY, L.P.−386,169
ORBIMED ADVISORS LLC−243,006
SCHRODER INVESTMENT MANAGEMENT GROUP−173,740
Cinctive Capital Management LP−94,444
SUPERSTRING CAPITAL MANAGEMENT LP−59,484
ADAR1 Capital Management, LLC−50,000
GSA CAPITAL PARTNERS LLP−43,339
HRT FINANCIAL LP−38,586
Voleon Capital Management LP−24,092
Brevan Howard Capital Management LP−24,078
JANE STREET GROUP, LLC−22,812
JANUS HENDERSON GROUP PLC−18,528
CWM, LLC−12,196
Quadrature Capital Ltd−10,577
ProShare Advisors LLC−10,465
Seven Fleet Capital Management LP−1,844
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO−1,150
MAI Capital Management−938
QUADRANT CAPITAL GROUP LLC−761
Wealth Preservation Advisors, LLC−84
Root Financial Partners, LLC−62

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting personFormFiledEventShares% of class
BVF INC/ILSCHEDULE 13G/A2026-08-142026-06-306,491,1239.99%
BIOTECHNOLOGY VALUE FUND L PSCHEDULE 13G/A2026-08-142026-06-303,711,2845.7%
Biotechnology Value Trading Fund OS LPSCHEDULE 13G/A2026-08-142026-06-30400,8610.6%
BVF GP HOLDINGS LLCSCHEDULE 13G/A2026-08-142026-06-305,980,4509.2%
BVF I GP LLCSCHEDULE 13G/A2026-08-142026-06-303,711,2845.7%
BVF II GP LLCSCHEDULE 13G/A2026-08-142026-06-302,269,1663.5%
BIOTECHNOLOGY VALUE FUND II LPSCHEDULE 13G/A2026-08-142026-06-302,269,1663.5%
BVF PARTNERS L P/ILSCHEDULE 13G/A2026-08-142026-06-306,491,1239.99%
BVF Partners OS Ltd.SCHEDULE 13G/A2026-08-142026-06-30400,8610.6%
T. Rowe Price Associates, Inc.SCHEDULE 13G2026-08-142026-06-303,825,9506.2%
LAMPERT MARK NSCHEDULE 13G/A2026-08-142026-06-306,491,1239.99%
STATE STREET CORPORATIONSCHEDULE 13G2026-08-072026-06-303,668,6276%
The Vanguard GroupSCHEDULE 13G/A2026-03-262026-03-1300%
Kynam Capital Management, LPSCHEDULE 13G2026-03-042025-12-313,114,1325.27%
Kynam Capital Management GP, LLCSCHEDULE 13G2026-03-042025-12-313,114,1325.27%
Yue TangSCHEDULE 13G2026-03-042025-12-313,114,1325.27%
LYNX1 CAPITAL MANAGEMENT LPSCHEDULE 13G/A2025-11-142025-09-305,766,0909.8%
Kenneth GriffinSCHEDULE 13G/A2025-11-142025-09-301,988,9073.4%
Citadel Securities Group LPSCHEDULE 13G/A2025-11-142025-09-30147,8280.3%
Citadel Securities GP LLCSCHEDULE 13G/A2025-11-142025-09-30147,8280.3%
Citadel Securities LLCSCHEDULE 13G/A2025-11-142025-09-30147,8280.3%
Citadel GP LLCSCHEDULE 13G/A2025-11-142025-09-301,841,0793.1%
Citadel Advisors LLCSCHEDULE 13G/A2025-11-142025-09-301,841,0793.1%
Citadel Advisors Holdings LPSCHEDULE 13G/A2025-11-142025-09-301,841,0793.1%
WESTON NICHOLSSCHEDULE 13G/A2025-11-142025-09-305,766,0909.8%
Deerfield Partners, L.P.SCHEDULE 13G/A2025-11-132025-09-302,927,0134.95%
James E. FlynnSCHEDULE 13G/A2025-11-132025-09-302,927,0134.95%
Deerfield Mgmt, L.P.SCHEDULE 13G/A2025-11-132025-09-302,927,0134.95%
Deerfield Management Company, L.P.SCHEDULE 13G/A2025-11-132025-09-302,927,0134.95%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.