Jane Street’s Cogent Biosciences COGT Stock Holding History

Jane Street’s Portfolio COGT Stock Details COGT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$211K	Buy	+5,483	New	+$202K	﹤0.01%	10020
2025 Q4	–	Sell	-148,401	Closed	-$4.17M	–	11269
2025 Q3	$2.13M	Buy	+148,401	New	+$1.76M	﹤0.01%	4820
2025 Q2	–	Sell	-123,822	Closed	-$742K	–	9771
2025 Q1	$742K	Buy	123,822 +49,338	+66%	+$387K	﹤0.01%	6127
2024 Q4	$581K	Sell	74,484 -37,379	-33%	-$373K	﹤0.01%	6471
2024 Q3	$1.21M	Sell	111,863 -136,681	-55%	-$1.33M	﹤0.01%	5505
2024 Q2	$2.1M	Buy	248,544 +203,822	+456%	+$1.55M	﹤0.01%	4390
2024 Q1	$301K	Buy	44,722 +10,051	+29%	+$62.1K	﹤0.01%	7564
2023 Q4	$204K	Buy	34,671 +5,024	+17%	+$38.5K	﹤0.01%	8193
2023 Q3	$289K	Sell	29,647 -25,267	-46%	-$300K	﹤0.01%	7112
2023 Q2	$650K	Sell	54,914 -12,674	-19%	-$145K	﹤0.01%	5911
2023 Q1	$729K	Buy	+67,588	New	+$865K	﹤0.01%	5639
2022 Q4	–	Sell	-28,506	Closed	-$425K	–	9250
2022 Q3	$425K	Buy	+28,506	New	+$391K	﹤0.01%	6984
2021 Q3	–	Sell	-24,192	Closed	-$196K	–	9998
2021 Q2	$196K	Buy	+24,192	New	+$204K	﹤0.01%	8847
2019 Q3	–	Sell	-12,583	Closed	-$132K	–	5144
2019 Q2	$132K	Buy	+12,583	New	+$167K	﹤0.01%	4797
2018 Q4	–	Sell	-3,630	Closed	-$150K	–	5016
2018 Q3	$150K	Buy	+3,630	New	+$205K	﹤0.01%	4772

Other funds holding COGT

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

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

FFM

Fairmount Funds Management West Conshohocken, Pennsylvania $1.38B AUM 407.79% 1-Year Est. Return

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

TCM

TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return

Jane Street's COGT Position: Q1 2026 in Review

Jane Street opened a new position in Cogent Biosciences (COGT) in Q1 2026: 5,483 shares worth $211K. The stake represents ﹤0.01% of the portfolio and ranks #10020 among its holdings. This is a return to the name: Jane Street previously reported a position in COGT as recently as Q3 2025.

Jane Street first reported a position in COGT in Q3 2018 and has held it in 15 quarters since. The position peaked at $2.13M in Q3 2025. 305 funds tracked by Wall St. Rank hold COGT as of Q1 2026.

Jane Street held 5,483 shares of Cogent Biosciences worth $211K as of Q1 2026.
Cogent Biosciences was a new Jane Street position in Q1 2026.
Cogent Biosciences made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10020 holding.
Jane Street first reported a position in Cogent Biosciences in Q3 2018 and has held it in 15 quarters since.
Jane Street's Cogent Biosciences position peaked at $2.13M in Q3 2025.
305 funds tracked by Wall St. Rank held Cogent Biosciences as of Q1 2026.

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