Jane Street
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Jane Street’s Cullinan Oncology CGEM Stock Holding History

Jane Street’s Portfolio CGEM Stock Details CGEM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-11,500
Closed -$119K – 11713
2025
Q4 		$119K Sell
11,500
-2,900
-20% -$26.2K ﹤0.01% 10094
2025
Q3 		$85.4K Buy
+14,400
New +$105K ﹤0.01% 10196
2025
Q1 		– Sell
-89,600
Closed -$1.09M – 9533
2024
Q4 		$1.09M Hold
89,600
– – ﹤0.01% 5211
2024
Q3 		$1.5M Buy
+89,600
New +$1.59M ﹤0.01% 5048

Other funds holding CGEM

LCM
Lynx1 Capital Management San Juan, Puerto Rico $633M AUM 173.22% 1-Year Est. Return
MB
MPM BioImpact Boston, Massachusetts $1.29B AUM 141.72% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.62B AUM 138.67% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
BOCH
Blue Owl Capital Holdings New York $372M AUM 78.25% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

Jane Street's CGEM Position: Q1 2026 in Review

Jane Street reduced its Cullinan Oncology (CGEM) stake by 88% in Q1 2026, selling an estimated $2.11M and leaving 22,812 shares worth $324K. The position accounts for ﹤0.01% of the portfolio, ranked #9066.

Jane Street first reported a position in CGEM in Q1 2023 and has held it in 13 quarters since. The position peaked at $1.93M in Q4 2025. 174 funds tracked by Wall St. Rank hold CGEM as of Q1 2026.

  • Jane Street held 22,812 shares of Cullinan Oncology worth $324K as of Q1 2026.
  • Jane Street sold 164,032 Cullinan Oncology shares in Q1 2026, an estimated $2.11M.
  • Cullinan Oncology made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #9066 holding.
  • Jane Street first reported a position in Cullinan Oncology in Q1 2023 and has held it in 13 quarters since.
  • Jane Street's Cullinan Oncology position peaked at $1.93M in Q4 2025.
  • 174 funds tracked by Wall St. Rank held Cullinan Oncology as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.