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Cullinan Therapeutics

US · CGEM #3243 by market cap Listed 2021
14.90 -0.73 -4.67%
Live - 5344 symbols - heartbeat 258s ago · 2026-10-08 10:00
Pre-market 15.60 -0.19%
After-hours 15.63 0.00%
Market cap
958.88M
P/B
2.98
EPS
-3.36
Reader sentiment Are you bullish or bearish on CGEM?

Anonymous reader poll. Unscientific, not investment advice.

✦ Quant Ownership Signal how this is computed

Distributing
  • The number of reporting institutions decreased by 2 in the most recent period (2026/Q3).
  • Total institutional ownership fell 1.6 percentage points.

Institutional ownership

Held by institutions
112.34% -1.63pp
Institutions
220 -2
As of
2026/Q3 vs. prior period

Ownership vs. money flow

Diverging

Institutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.

Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.

Holder types

Mutual Fund54.57%
Hedge Fund27.05%
VC/PE Fund24.38%
Public Company3.74%
Individual/Insider1.22%
Family Office/Trust0.97%
Insurance Company0.72%
Private Company0.71%
Government Pension Fund0.19%

Top holders as of 2026-06-30

MPM BioImpact LLC 15.12% · 9.73M sh
Lynx1 Capital Management LP 13.93% · 8.96M sh
BVF Partners L.P. 8.94% · 5.75M sh
BlackRock 8.13% · 5.23M sh
T. Rowe Price Group, Inc. 5.95% · 3.83M sh
State Street Global Advisors 5.70% · 3.67M sh
Kynam Capital Management, LP 4.84% · 3.11M sh
Vanguard Capital Management, LLC 4.63% · 2.98M sh
RTW Investments, LP 3.67% · 2.36M sh
Artal Group S.A. 2.94% · 1.89M sh

Bar length is relative to the largest holder shown here, not to 100% of the company.

Insiders

50 filings tracked · 19 buys · 31 sells

NameRoleStake
Lynx1 Capital Management LP -- 13.93%
Jennifer Michaelson Chief Scientific Officer 0.25%
Corinne Savill Chief Business Officer 0.24%
Nadim Ahmed Chief Executive Officer 0.21%
Mary Fenton Chief Financial Officer 0.20%
Jeffrey Jones Chief Medical Officer 0.10%
Jacquelyn Sumer Chief Legal Officer, Chief Compliance Officer & Corporate Secretary 0.09%
Anthony Rosenberg Independent Chairperson 0.07%
Jeffrey Trigilio Chief Financial Officer 0.07%
Stephen Webster Independent Director --

Insider transactions most recent Form 4 filings

DateNameRoleTypeSharesPrice
2026-09-07 Jennifer Michaelson Chief Scientific Officer Automatic Disposition -4,000 $21.57
2026-09-07 Jennifer Michaelson Chief Scientific Officer Derivative Exercise and Sale -4,000 $4.30–21.57
2026-08-12 Jennifer Michaelson Chief Scientific Officer Derivative Exercise and Sale -30,000 $4.30–20.26
2026-07-05 Jennifer Michaelson Chief Scientific Officer Automatic Disposition -4,000 $17.82
2026-07-05 Jennifer Michaelson Chief Scientific Officer Derivative Exercise and Sale -4,000 $4.30–17.82
2026-06-29 Mary Fenton Chief Financial Officer Other Acquisition +1,541 $8.60
2026-06-29 Jacquelyn Sumer Chief Legal Officer, Chief Compliance Officer & Corporate Secretary Other Acquisition +2,470 $8.60
2026-06-15 Stephen Webster Independent Director Other Derivative Acquisition +25,319 $13.55
2026-06-15 Anthony Rosenberg Independent Chairperson Other Derivative Acquisition +25,319 $13.55
2026-06-15 Mary Thistle Director Other Derivative Acquisition +25,319 $13.55
2026-06-15 Andrew Allen Director Other Derivative Acquisition +21,781 $13.55
2026-06-15 David Meek Independent Director Other Derivative Acquisition +25,319 $13.55
2026-06-15 Mittie Doyle Director Other Derivative Acquisition +21,781 $13.55
2026-05-04 Jennifer Michaelson Chief Scientific Officer Automatic Disposition -4,000 $14.60–15.58
2026-05-04 Jennifer Michaelson Chief Scientific Officer Derivative Exercise and Sale -4,000 $4.30–14.60
2026-03-04 Jennifer Michaelson Chief Scientific Officer Automatic Disposition -4,000 $15.68
2026-03-04 Jennifer Michaelson Chief Scientific Officer Derivative Exercise and Sale -4,000 $4.30–15.68
2026-02-24 Jennifer Michaelson Chief Scientific Officer Automatic Disposition -1,780 $14.14
2026-02-23 Jeffrey Jones Chief Medical Officer Open Market Disposition -4,582 $14.47
2026-02-23 Nadim Ahmed Chief Executive Officer Open Market Disposition -13,515 $14.47

Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.

Quote time 2026-10-08 10:00:09 · For reference only, not investment advice and not tailored to your situation.