CGEMCullinan Therapeutics, Inc.

$15.53+150% 1Y

Who owns CGEM

182 institutions reported holding CGEM for 2026Q2, together 117% of the company, more than the 172 a quarter earlier.

182

Institutions reporting a position · as of 2026Q2 · up from 172 the quarter before

Shares held by institutions
71.6M

Shares held by institutions · 117% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.30B

Reported value · at Jun 30, 2026 prices, not today's

Opened vs closed
32 / 22

Opened vs closed · new positions against positions exited in the latest quarter

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
22
New positions
32
Positions exited
22
Added to
79
Reduced
44
Shares sold shortsettled Sep 15, 2026
9.6M
Short interestof shares outstanding
16%
Days to coverat the average daily volume
10.9
Change in the short positionsince the Aug 31, 2026 count
−7.2%
Institutional ownership by quarter, 2021Q1 to 2026Q2
QuarterFilersSharesReported value
2026Q218271.6M$1.30B
2026Q117265.6M$931M
2025Q415163.2M$654M
2025Q314361.1M$362M
2025Q214262.6M$471M
2025Q114764.7M$490M
2024Q414565.6M$799M
2024Q313665.0M$1.09B
2024Q213462.9M$1.10B
2024Q111339.4M$671M
2023Q411336.9M$376M
2023Q310638.0M$344M
2023Q210636.9M$397M
2023Q110332.3M$330M
2022Q49737.7M$398M
2022Q39837.0M$475M
Largest reported holders, 2026Q2
HolderShares% of companyValue
MPM BIOIMPACT LLC9.7Mn/a$177M
Lynx1 Capital Management LP9.0Mn/a$163M
BVF INC/IL5.8Mn/a$105M
BlackRock Inc.5.2Mn/a$95M
PRICE T ROWE ASSOCIATES INC /MD/3.8Mn/a$70M
VANGUARD GROUP INC3.8Mn/a$69M
STATE STREET CORP3.7Mn/a$67M
Kynam Capital Management, LP3.1Mn/a$57M
RTW INVESTMENTS, LP2.4Mn/a$43M
Siren, L.L.C.1.9Mn/a$34M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20269.6M16%10.9
Aug 31, 202610.4M17%15.5
Aug 14, 202610.6M17%15.4
Jul 31, 202610.3M17%19.2
Jul 15, 202610.3M17%15.2
Jun 30, 202610.6M17%6.6
Jun 15, 20268.2M13%6.3
May 29, 20268.0M13%7.0
May 15, 20268.7M14%8.2
Apr 30, 20268.8M14%15.3
Apr 15, 20268.1M13%10.6
Mar 31, 20268.4M14%9.3

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

opening the register…
On our screens:Most shorted stocks