United States Biotechnology & Medical Research

Cogent Biosciences Inc (COGT)

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Cogent Biosciences Inc. recorded one insider transaction over the past ninety days, involving a director's proposed sale of 45,510 shares valued at approximately 1.67 million dollars. This activity follows the company's recent earnings report, which showed a 5.45 percent beat on earnings per share, while the stock price currently trades near its yearly high.
Ticker: COGT Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Morris Arlene Non-Executive Director
Transaction date
Planned sale
Price
85.04
Quantity 16,585 -6.2%
Value US$2,522,315
Morris Arlene Non-Executive Director
Transaction date
Planned sale
Price
106.60
Quantity 8,509 -28.6%
Value US$159,648
ARLENE MORRIS Director Non-Executive Director
Transaction date
Proposed sale
Price
480.82
Quantity 88,126
Value US$3,953,429
3.4
Green John L. Chief Financial Officer Officer
Transaction date
Sale
Price
38.68
Quantity 77,000 -36.9%
Value US$2,978,360
2.7
Sachs Jessica Chief Medical Officer Officer
Transaction date
Sale
Price
38.70
Quantity 82,642 -38.2%
Value US$3,198,245
2.7
Robinson John Edward Chief Scientific Officer Officer
Transaction date
Sale
Price
38.74
Quantity 90,000 -39.1%
Value US$3,486,600
2.7
Kearns Evan Chief Legal Officer Officer
Transaction date
Sale
Price
38.70
Quantity 65,000 -37.3%
Value US$2,515,500
2.7
JESSICA SACHS Officer Officer
Transaction date
Proposed sale
Price
38.70
Quantity 82,642
Value US$3,198,435
2.7
JOHN ROBINSON Officer Officer
Transaction date
Proposed sale
Price
38.74
Quantity 90,000
Value US$3,486,276
3.4
JOHN GREEN Officer Officer
Transaction date
Proposed sale
Price
38.68
Quantity 77,000
Value US$2,978,322
2.7
EVAN D KEARNS Officer Officer
Transaction date
Proposed sale
Price
38.70
Quantity 65,000
Value US$2,515,175
Pinnow Cole Chief Commercial Officer Officer
Transaction date
Planned purchase
Price
7.60
Quantity 43,750 +2085.3%
Value US$332,412
3.4
Green John L. Chief Financial Officer Officer
Transaction date
Sale
Price
8.86
Quantity 17,813 -82.3%
Value US$157,823
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.46
Quantity 98,200 -3.1%
Value US$45,545
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.45
Quantity 77,719 -2.4%
Value US$35,160
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.46
Quantity 22,281 -0.7%
Value US$10,336
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.46
Quantity 100,000 -2.9%
Value US$46,390
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.41
Quantity 100,000 -2.9%
Value US$41,430
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 1,800 -0.1%
Value US$722
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 135,484 -3.7%
Value US$54,437
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 4,795 -0.1%
Value US$1,921
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.41
Quantity 800 -0.0%
Value US$328
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 75,994 -2.0%
Value US$30,557
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.41
Quantity 382,927 -9.4%
Value US$155,507
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.41
Quantity 15,048 -0.4%
Value US$6,168
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 242,579 -5.6%
Value US$97,808
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 12,606 -0.3%
Value US$5,050
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.39
Quantity 65,540 -1.5%
Value US$25,574
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.38
Quantity 600 -0.0%
Value US$230
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.38
Quantity 82,782 -1.8%
Value US$31,797
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 44,006 -1.0%
Value US$17,602
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.40
Quantity 54,967 -1.2%
Value US$22,119
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.33
Quantity 420,292 -8.3%
Value US$138,150
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.35
Quantity 100 -0.0%
Value US$35
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.35
Quantity 11,400 -0.2%
Value US$3,990
1.1
CAMPANA DARIO Large shareholder
Transaction date
Sale
Price
0.35
Quantity 50,080 -1.0%
Value US$17,528
Ettenberg Seth Chief Scientific Officer
Transaction date
Planned sale
Price
4.12
Quantity 11,485 -100.0%
Value US$47,334
Ettenberg Seth Chief Scientific Officer Officer
Transaction date
Planned sale
Price
4.25
Quantity 11,485 -100.0%
Value US$48,853
Ettenberg Seth Chief Scientific Officer Officer
Transaction date
Planned sale
Price
4.05
Quantity 11,485 -100.0%
Value US$46,487
Ettenberg Seth Chief Scientific Officer Officer
Transaction date
Planned sale
Price
7.00
Quantity 11,485 -100.0%
Value US$80,444
Ettenberg Seth Chief Scientific Officer Officer
Transaction date
Planned sale
Price
8.46
Quantity 11,485 -100.0%
Value US$97,201
Ettenberg Seth Chief Scientific Officer Officer
Transaction date
Planned sale
Price
12.47
Quantity 11,485 -100.0%
Value US$143,181
FMR LLC See Remark 1
Transaction date
Purchase
Price
12.00
Quantity 94,052 +26.3%
Value US$1,128,624
Booth Bruce Non-Executive Director
Transaction date
Purchase
Price
12.00
Quantity 94,052 +2.9%
Value US$1,128,624
Atlas Venture Fund IX, L.P. Large shareholder
Transaction date
Purchase
Price
12.00
Quantity 94,052 +2.9%
Value US$1,128,624
Ratcliffe Liam Non-Executive Director
Transaction date
Purchase
Price
12.00
Quantity 275,000 +44.2%
Value US$3,300,000
Ratcliffe Liam Non-Executive Director
Transaction date
Purchase
Price
12.00
Quantity 275,000 +44.2%
Value US$3,300,000
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-31 2026-08-27 PlS Planned sale
Morris Arlene
Non-Executive Director
16,585 -6.2%
85.04
US$2,522,315 		16,585 -6.2% 85.04 US$2,522,315
2026-08-31 2026-08-27 PlS Planned sale
Morris Arlene
Non-Executive Director
8,509 -28.6%
106.60
US$159,648 		8,509 -28.6% 106.60 US$159,648
2026-08-27 2026-08-27 PrS Proposed sale
ARLENE MORRIS

Director

Non-Executive Director
88,126
480.82
US$3,953,429 		88,126 480.82 US$3,953,429
2026-03-31 2026-03-31 S Sale
3.3
Fairmount Funds Management LLC
Non-Executive Director
7,000,000 -56.0%
34.66
US$242,620,000 		7,000,000 -56.0% 34.66 US$242,620,000
2026-03-31 2026-03-31 PrS Proposed sale
3.3
Fairmount Healthcare Fund II L.P.

Director

Non-Executive Director
7,000,000
34.66
US$242,620,000 		7,000,000 34.66 US$242,620,000
2026-01-22 2026-01-22 PrS Proposed sale
3.3
Fairmount Healthcare Fund II L.P.

Director

Non-Executive Director
3,500,000
36.40
US$127,400,000 		3,500,000 36.40 US$127,400,000
2026-01-22 2026-01-22 S Sale
3.3
Fairmount Funds Management LLC
Non-Executive Director
3,500,000 -38.9%
36.40
US$127,400,000 		3,500,000 -38.9% 36.40 US$127,400,000
2025-12-30 2025-12-26 S Sale
3.4
Green John L.

Chief Financial Officer

Officer
77,000 -36.9%
38.68
US$2,978,360 		77,000 -36.9% 38.68 US$2,978,360
2025-12-30 2025-12-26 S Sale
2.7
Sachs Jessica

Chief Medical Officer

Officer
82,642 -38.2%
38.70
US$3,198,245 		82,642 -38.2% 38.70 US$3,198,245
2025-12-30 2025-12-26 S Sale
2.7
Robinson John Edward

Chief Scientific Officer

Officer
90,000 -39.1%
38.74
US$3,486,600 		90,000 -39.1% 38.74 US$3,486,600
2025-12-30 2025-12-26 S Sale
2.7
Kearns Evan

Chief Legal Officer

Officer
65,000 -37.3%
38.70
US$2,515,500 		65,000 -37.3% 38.70 US$2,515,500
2025-12-29 2025-12-26 PrS Proposed sale
2.7
JESSICA SACHS

Officer

Officer
82,642
38.70
US$3,198,435 		82,642 38.70 US$3,198,435
2025-12-29 2025-12-26 PrS Proposed sale
2.7
JOHN ROBINSON

Officer

Officer
90,000
38.74
US$3,486,276 		90,000 38.74 US$3,486,276
2025-12-29 2025-12-26 PrS Proposed sale
3.4
JOHN GREEN

Officer

Officer
77,000
38.68
US$2,978,322 		77,000 38.68 US$2,978,322
2025-12-29 2025-12-26 PrS Proposed sale
2.7
EVAN D KEARNS

Officer

Officer
65,000
38.70
US$2,515,175 		65,000 38.70 US$2,515,175
2025-07-14 2025-07-10 B Purchase
3.3
Fairmount Funds Management LLC
Non-Executive Director
2,777,777 +44.6%
9.00
US$24,999,993 		2,777,777 +44.6% 9.00 US$24,999,993
2025-01-15 2025-01-14 PP Planned purchase
Pinnow Cole

Chief Commercial Officer

Officer
43,750 +2085.3%
7.60
US$332,412 		43,750 +2085.3% 7.60 US$332,412
2023-06-13 2023-06-09 B Purchase
3.3
Fairmount Funds Management LLC
Large shareholder
800,000 +32.4%
12.00
US$9,600,000 		800,000 +32.4% 12.00 US$9,600,000
2022-06-21 2022-06-16 B Purchase
3.3
Fairmount Funds Management LLC
Large shareholder
1,200,000 +94.3%
8.25
US$9,900,000 		1,200,000 +94.3% 8.25 US$9,900,000
2021-04-28 2021-04-26 S Sale
3.4
Green John L.

Chief Financial Officer

Officer
17,813 -82.3%
8.86
US$157,823 		17,813 -82.3% 8.86 US$157,823
2020-08-18 2020-08-18 B Purchase
3.8
Venrock Healthcare Capital Partners III, L.P.
Large shareholder
101,000 +2.4%
2.62
US$264,620 		101,000 +2.4% 2.62 US$264,620
2020-08-18 2020-08-17 B Purchase
3.8
Venrock Healthcare Capital Partners III, L.P.
Large shareholder
250,000 +6.2%
2.57
US$642,500 		250,000 +6.2% 2.57 US$642,500
2020-08-18 2020-08-14 B Purchase
3.8
Venrock Healthcare Capital Partners III, L.P.
Large shareholder
100,000 +2.6%
2.30
US$230,000 		100,000 +2.6% 2.30 US$230,000
2020-10-08 2020-05-12 S Sale
1.1
CAMPANA DARIO
Large shareholder
98,200 -3.1%
0.46
US$45,545 		98,200 -3.1% 0.46 US$45,545
2020-10-08 2020-05-11 S Sale
1.1
CAMPANA DARIO
Large shareholder
77,719 -2.4%
0.45
US$35,160 		77,719 -2.4% 0.45 US$35,160
2020-10-08 2020-05-11 S Sale
1.1
CAMPANA DARIO
Large shareholder
22,281 -0.7%
0.46
US$10,336 		22,281 -0.7% 0.46 US$10,336
2020-10-08 2020-05-08 S Sale
1.1
CAMPANA DARIO
Large shareholder
100,000 -2.9%
0.46
US$46,390 		100,000 -2.9% 0.46 US$46,390
2020-10-08 2020-05-07 S Sale
1.1
CAMPANA DARIO
Large shareholder
100,000 -2.9%
0.41
US$41,430 		100,000 -2.9% 0.41 US$41,430
2020-10-08 2020-05-06 S Sale
1.1
CAMPANA DARIO
Large shareholder
1,800 -0.1%
0.40
US$722 		1,800 -0.1% 0.40 US$722
2020-10-08 2020-05-05 S Sale
1.1
CAMPANA DARIO
Large shareholder
135,484 -3.7%
0.40
US$54,437 		135,484 -3.7% 0.40 US$54,437
2020-10-08 2020-05-04 S Sale
1.1
CAMPANA DARIO
Large shareholder
4,795 -0.1%
0.40
US$1,921 		4,795 -0.1% 0.40 US$1,921
2020-10-08 2020-05-01 S Sale
1.1
CAMPANA DARIO
Large shareholder
800 -0.0%
0.41
US$328 		800 -0.0% 0.41 US$328
2020-10-08 2020-04-30 S Sale
1.1
CAMPANA DARIO
Large shareholder
75,994 -2.0%
0.40
US$30,557 		75,994 -2.0% 0.40 US$30,557
2020-10-08 2020-04-29 S Sale
1.1
CAMPANA DARIO
Large shareholder
382,927 -9.4%
0.41
US$155,507 		382,927 -9.4% 0.41 US$155,507
2020-10-08 2020-04-28 S Sale
1.1
CAMPANA DARIO
Large shareholder
15,048 -0.4%
0.41
US$6,168 		15,048 -0.4% 0.41 US$6,168
2020-10-08 2020-04-27 S Sale
1.1
CAMPANA DARIO
Large shareholder
242,579 -5.6%
0.40
US$97,808 		242,579 -5.6% 0.40 US$97,808
2020-10-08 2020-04-20 S Sale
1.1
CAMPANA DARIO
Large shareholder
12,606 -0.3%
0.40
US$5,050 		12,606 -0.3% 0.40 US$5,050
2020-10-08 2020-04-17 S Sale
1.1
CAMPANA DARIO
Large shareholder
65,540 -1.5%
0.39
US$25,574 		65,540 -1.5% 0.39 US$25,574
2020-10-08 2020-04-16 S Sale
1.1
CAMPANA DARIO
Large shareholder
600 -0.0%
0.38
US$230 		600 -0.0% 0.38 US$230
2020-10-08 2020-04-15 S Sale
1.1
CAMPANA DARIO
Large shareholder
82,782 -1.8%
0.38
US$31,797 		82,782 -1.8% 0.38 US$31,797
2020-10-08 2020-04-14 S Sale
1.1
CAMPANA DARIO
Large shareholder
44,006 -1.0%
0.40
US$17,602 		44,006 -1.0% 0.40 US$17,602
2020-10-08 2020-04-14 S Sale
1.1
CAMPANA DARIO
Large shareholder
54,967 -1.2%
0.40
US$22,119 		54,967 -1.2% 0.40 US$22,119
2020-10-08 2020-04-09 S Sale
1.1
CAMPANA DARIO
Large shareholder
420,292 -8.3%
0.33
US$138,150 		420,292 -8.3% 0.33 US$138,150
2020-10-08 2020-04-08 S Sale
1.1
CAMPANA DARIO
Large shareholder
100 -0.0%
0.35
US$35 		100 -0.0% 0.35 US$35
2020-10-08 2020-04-07 S Sale
1.1
CAMPANA DARIO
Large shareholder
11,400 -0.2%
0.35
US$3,990 		11,400 -0.2% 0.35 US$3,990
2020-10-08 2020-04-06 S Sale
1.1
CAMPANA DARIO
Large shareholder
50,080 -1.0%
0.35
US$17,528 		50,080 -1.0% 0.35 US$17,528
2019-03-26 2019-03-25 PlS Planned sale
Ettenberg Seth

Chief Scientific Officer
11,485 -100.0%
4.12
US$47,334 		11,485 -100.0% 4.12 US$47,334
2019-02-26 2019-02-25 PlS Planned sale
Ettenberg Seth

Chief Scientific Officer

Officer
11,485 -100.0%
4.25
US$48,853 		11,485 -100.0% 4.25 US$48,853
2018-12-28 2018-12-26 PlS Planned sale Ettenberg Seth

Chief Scientific Officer

Officer
11,485 -100.0%
4.05
US$46,487 		11,485 -100.0% 4.05 US$46,487
2018-11-26 2018-11-26 PlS Planned sale Ettenberg Seth

Chief Scientific Officer

Officer
11,485 -100.0%
7.00
US$80,444 		11,485 -100.0% 7.00 US$80,444
2018-10-29 2018-10-25 PlS Planned sale Ettenberg Seth

Chief Scientific Officer

Officer
11,485 -100.0%
8.46
US$97,201 		11,485 -100.0% 8.46 US$97,201
2018-09-26 2018-09-25 PlS Planned sale Ettenberg Seth

Chief Scientific Officer

Officer
11,485 -100.0%
12.47
US$143,181 		11,485 -100.0% 12.47 US$143,181
2018-04-05 2018-04-03 B Purchase FMR LLC

See Remark 1
94,052 +26.3%
12.00
US$1,128,624 		94,052 +26.3% 12.00 US$1,128,624
2018-04-03 2018-04-03 B Purchase Booth Bruce Non-Executive Director
94,052 +2.9%
12.00
US$1,128,624 		94,052 +2.9% 12.00 US$1,128,624
2018-04-03 2018-04-03 B Purchase Atlas Venture Fund IX, L.P. Large shareholder
94,052 +2.9%
12.00
US$1,128,624 		94,052 +2.9% 12.00 US$1,128,624
2018-04-03 2018-04-03 B Purchase Ratcliffe Liam Non-Executive Director
275,000 +44.2%
12.00
US$3,300,000 		275,000 +44.2% 12.00 US$3,300,000
2018-04-03 2018-04-03 B Purchase Ratcliffe Liam Non-Executive Director
275,000 +44.2%
12.00
US$3,300,000 		275,000 +44.2% 12.00 US$3,300,000
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