Ticker · CUSIP 230031106

CGEM

CULLINAN ONCOLOGY INC
Healthcare·Biotechnology
···Share
Holders (tracked)
11
Combined shares
2,530,520
Combined value
$25.70M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
1172024Q12025Q4

SEC event timeline

18 events
  1. Ken Griffin (Citadel Advisors) trimmed2026-02-17
    −1,874,090 shares · 2025Q4
    Position
  2. D.E. Shaw & Co. trimmed2026-02-17
    −11,254 shares · 2025Q4
    Position
  3. Two Sigma Investments added2026-02-17
    +410,854 shares · 2025Q4
    Position
  4. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −187,976 shares · 2025Q4
    Position
  5. Steve Cohen (Point72) opened position2026-02-17
    +360,162 shares · 2025Q4
    Position
  6. T. Rowe Price added2026-02-17
    +3,950 shares · 2025Q4
    Position
  7. Wellington Management trimmed2026-02-17
    −8,380 shares · 2025Q4
    Position
  8. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +10,128 shares · 2025Q4
    Position
  9. AQR Capital Management added2026-02-17
    +83,563 shares · 2025Q4
    Position
  10. Renaissance Technologies added2026-02-12
    +102,298 shares · 2025Q4
    Position
  11. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −22,138 shares · 2025Q3
    Position
  12. Two Sigma Investments opened position2025-11-14
    +59,672 shares · 2025Q3
    Position
  13. D.E. Shaw & Co. added2025-11-14
    +290 shares · 2025Q3
    Position
  14. Izzy Englander (Millennium Mgmt) added2025-11-14
    +39,643 shares · 2025Q3
    Position
  15. T. Rowe Price added2025-11-14
    +6,820 shares · 2025Q3
    Position
  16. Wellington Management trimmed2025-11-14
    −17,952 shares · 2025Q3
    Position
  17. AQR Capital Management added2025-11-14
    +177,000 shares · 2025Q3
    Position
  18. Renaissance Technologies added2025-11-13
    +194,883 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for CGEM →

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions2
Added to4
Trimmed4
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
8
$38.7M
2022Q2
11
$63.4M
2022Q3
12
$1.4M
2022Q4
11
$32.6M
2023Q1
10
$31.4M
2023Q2
10
$37.5M
2023Q3
10
$32.7M
2023Q4
8
$39.7M
2024Q1
7
$61.8M
2024Q2
9
$110.0M
2024Q3
9
$55.0M
2024Q4
8
$46.8M
2025Q1
9
$31.2M
2025Q2
9
$29.2M
2025Q3
8
$20.8M
2025Q4
11
$25.7M

Who owns CGEM

11 super-investors · 2025Q4
Tracked stake
2.53M
shares
Combined value
$26M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added4Trim5
#ManagerSharesValue
1Renaissance Technologies631.7K$7M
2Two Sigma Investments470.5K$5M
3Izzy Englander
Millennium Mgmt
362.5K$4M
4Steve Cohen
Point72
360.2K$4M
5AQR Capital Management281.5K$3M
6Wellington Management159.8K$2M
7Ken Griffin
Citadel Advisors
110.3K$1M
8Ken Griffin
Citadel Advisors
82.4K$853K
9D.E. Shaw & Co.14.4K$149K
10Paul Tudor Jones
Tudor Investment
10.1K$105K
11T. Rowe Price47.2K$489

Recent moves

20 transactions
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