Wellington Management Group
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Wellington Management Group’s Cogent Biosciences COGT Stock Holding History

Wellington Management Group’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 		$138M Buy
3,578,622
+866,286
+32% +$32M 0.03% 463
2025
Q4 		$96.3M Buy
2,712,336
+2,305,437
+567% +$64.8M 0.02% 557
2025
Q3 		$5.84M Buy
406,899
+109,535
+37% +$1.3M ﹤0.01% 1396
2025
Q2 		$2.14M Buy
297,364
+39,063
+15% +$217K ﹤0.01% 1568
2025
Q1 		$1.55M Sell
258,301
-26,549
-9% -$208K ﹤0.01% 1611
2024
Q4 		$2.22M Sell
284,850
-57,473
-17% -$573K ﹤0.01% 1547
2024
Q3 		$3.7M Buy
342,323
+25,470
+8% +$248K ﹤0.01% 1407
2024
Q2 		$2.67M Buy
316,853
+20,542
+7% +$156K ﹤0.01% 1456
2024
Q1 		$1.99M Buy
296,311
+168,867
+133% +$1.04M ﹤0.01% 1523
2023
Q4 		$749K Buy
+127,444
New +$977K ﹤0.01% 1672
2019
Q4 		– Sell
-183,242
Closed -$1.05M – 2025
2019
Q3 		$1.05M Hold
183,242
– – ﹤0.01% 1714
2019
Q2 		$1.92M Hold
183,242
– – ﹤0.01% 1637
2019
Q1 		$3.22M Hold
183,242
– – ﹤0.01% 1490
2018
Q4 		$3.23M Sell
183,242
-14,125
-7% -$418K ﹤0.01% 1507
2018
Q3 		$8.13M Sell
197,367
-10,224
-5% -$576K ﹤0.01% 1348
2018
Q2 		$11.9M Hold
207,591
– – ﹤0.01% 1228
2018
Q1 		$9.22M Buy
+207,591
New +$9.23M ﹤0.01% 1303

Other funds holding COGT

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 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 $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
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

Wellington Management Group's COGT Position: Q1 2026 in Review

Wellington Management Group increased its Cogent Biosciences (COGT) stake by 32% in Q1 2026, buying an estimated $32M and bringing the position to 3,578,622 shares worth $138M. The position accounts for 0.03% of the portfolio, ranked #463.

Wellington Management Group first reported a position in COGT in Q1 2018 and has held it in 17 quarters since. 305 funds tracked by Wall St. Rank hold COGT as of Q1 2026.

  • Wellington Management Group held 3,578,622 shares of Cogent Biosciences worth $138M as of Q1 2026.
  • Wellington Management Group bought 866,286 Cogent Biosciences shares in Q1 2026, an estimated $32M.
  • Cogent Biosciences made up 0.03% of Wellington Management Group's portfolio in Q1 2026, its #463 holding.
  • Wellington Management Group first reported a position in Cogent Biosciences in Q1 2018 and has held it in 17 quarters since.
  • 305 funds tracked by Wall St. Rank held Cogent Biosciences as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.