COGT — Cogent Biosciences, Inc.

Materials · Pharmaceutical Preparations · Nasdaq

Formerly: Unum Therapeutics Inc. (until 2020-10-05); Unum Therapeutics, Inc. (until 2018-03-30)

1Insiders filing

6Transactions

+$245kReported buys

−$1.7MReported sells

0Cluster events

Window in data: 2026-08-27 → 2026-08-27 · Data as of 2026-09-01

Insiders

Insider	Role	Txns	Reported value
Morris Arlene	Director	6	$1.9M

Filing date	Trade date	Ticker	Insider	Type	Shares	Price	Value	Cluster
2026-08-31	2026-08-27	COGT	Morris Arlene Director 10b5-1	M routine	41,927	$5.64	+$236k	—
2026-08-31	2026-08-27	COGT	Morris Arlene Director 10b5-1	M routine	3,583	$2.52	+$9k	—
2026-08-31	2026-08-27	COGT	Morris Arlene Director 10b5-1	S	42,349	$37.09	−$1.6M	—
2026-08-31	2026-08-27	COGT	Morris Arlene Director 10b5-1	S	3,161	$37.54	−$119k	—
2026-08-31	2026-08-27	COGT	Morris Arlene Director 10b5-1	M routine	41,927	—	—	—
2026-08-31	2026-08-27	COGT	Morris Arlene Director 10b5-1	M routine	3,583	—	—	—