Jim Simons
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Jim Simons’s Cogent Biosciences COGT Stock Holding History

Jim Simons’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 		$27.2M Buy
706,268
+17,200
+2% +$635K 0.04% 537
2025
Q4 		$24.5M Buy
689,068
+456,100
+196% +$12.8M 0.04% 519
2025
Q3 		$3.35M Buy
+232,968
New +$2.76M ﹤0.01% 1721
2025
Q2 		– Sell
-254,768
Closed -$1.53M – 3596
2025
Q1 		$1.53M Buy
254,768
+11,839
+5% +$92.8K ﹤0.01% 2153
2024
Q4 		$1.89M Buy
+242,929
New +$2.42M ﹤0.01% 2090
2024
Q2 		– Sell
-299,668
Closed -$2.01M – 3552
2024
Q1 		$2.01M Buy
299,668
+273,400
+1,041% +$1.69M ﹤0.01% 2027
2023
Q4 		$154K Buy
+26,268
New +$201K ﹤0.01% 3207
2023
Q2 		– Sell
-61,468
Closed -$663K – 3965
2023
Q1 		$663K Buy
+61,468
New +$786K ﹤0.01% 2719
2022
Q4 		– Sell
-15,168
Closed -$226K – 4145
2022
Q3 		$226K Sell
15,168
-26,632
-64% -$365K ﹤0.01% 3338
2022
Q2 		$377K Buy
41,800
+30,300
+263% +$207K ﹤0.01% 3324
2022
Q1 		$86K Buy
+11,500
New +$80.1K ﹤0.01% 3821
2021
Q1 		– Sell
-32,445
Closed -$364K – 3362
2020
Q4 		$364K Sell
32,445
-54,822
-63% -$602K ﹤0.01% 2963
2020
Q3 		$817K Sell
87,267
-210,584
-71% -$2.2M ﹤0.01% 2611
2020
Q2 		$548K Buy
297,851
+231,950
+352% +$430K ﹤0.01% 2839
2020
Q1 		$109K Sell
65,901
-22,714
-26% -$63.1K ﹤0.01% 3210
2019
Q4 		$255K Buy
88,615
+85,365
+2,627% +$348K ﹤0.01% 3112
2019
Q3 		$19K Sell
3,250
-8,225
-72% -$66.9K ﹤0.01% 3378
2019
Q2 		$120K Sell
11,475
-5,366
-32% -$71.4K ﹤0.01% 3373
2019
Q1 		$296K Buy
16,841
+5,841
+53% +$99.8K ﹤0.01% 3097
2018
Q4 		$194K Sell
11,000
-6,550
-37% -$194K ﹤0.01% 3142
2018
Q3 		$723K Buy
+17,550
New +$989K ﹤0.01% 2739

Other funds holding COGT

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DM
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
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
FFM
Fairmount Funds Management West Conshohocken, Pennsylvania $1.38B AUM 407.79% 1-Year Est. Return
RI
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

Jim Simons's COGT Position: Q1 2026 in Review

Jim Simons increased its Cogent Biosciences (COGT) stake by 2.5% in Q1 2026, buying an estimated $635K and bringing the position to 706,268 shares worth $27.2M. The position accounts for 0.04% of the portfolio, ranked #537.

Jim Simons first reported a position in COGT in Q3 2018 and has held it in 21 quarters since. 305 funds tracked by Wall St. Rank hold COGT as of Q1 2026.

  • Jim Simons held 706,268 shares of Cogent Biosciences worth $27.2M as of Q1 2026.
  • Jim Simons bought 17,200 Cogent Biosciences shares in Q1 2026, an estimated $635K.
  • Cogent Biosciences made up 0.04% of Jim Simons's portfolio in Q1 2026, its #537 holding.
  • Jim Simons first reported a position in Cogent Biosciences in Q3 2018 and has held it in 21 quarters since.
  • 305 funds tracked by Wall St. Rank held Cogent Biosciences as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.