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	$324K	Sell	22,812 -164,032	-88%	-$2.11M	﹤0.01%	9066
2025 Q4	$1.93M	Sell	186,844 -114,041	-38%	-$1.03M	﹤0.01%	4883
2025 Q3	$1.78M	Buy	300,885 +252,002	+516%	+$1.85M	﹤0.01%	5154
2025 Q2	$368K	Buy	48,883 +14,487	+42%	+$116K	﹤0.01%	7484
2025 Q1	$260K	Buy	34,396 +19,813	+136%	+$190K	﹤0.01%	8037
2024 Q4	$178K	Sell	14,583 -6,572	-31%	-$94.5K	﹤0.01%	8490
2024 Q3	$354K	Sell	21,155 -75,441	-78%	-$1.34M	﹤0.01%	7762
2024 Q2	$1.68M	Buy	96,596 +75,592	+360%	+$1.61M	﹤0.01%	4799
2024 Q1	$358K	Buy	21,004 +7,202	+52%	+$111K	﹤0.01%	7276
2023 Q4	$141K	Sell	13,802 -2,812	-17%	-$24.9K	﹤0.01%	8427
2023 Q3	$150K	Sell	16,614 -37,269	-69%	-$388K	﹤0.01%	7786
2023 Q2	$580K	Buy	53,883 +32,196	+148%	+$342K	﹤0.01%	6091
2023 Q1	$222K	Buy	+21,687	New	+$239K	﹤0.01%	7695

Other funds holding CGEM

LCM

Lynx1 Capital Management San Juan, Puerto Rico $633M AUM 173.22% 1-Year Est. Return

MPM BioImpact Boston, Massachusetts $1.29B AUM 141.72% 1-Year Est. Return

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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.