Company · Ownership research

Cogent Biosciences, Inc. COGT

CIK 0001622229

Form 4 transactions dated Nov 1, 2023 to Nov 8, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 34 rows; the complete set is available through the API.

Insider filings on file run through Oct 5, 2026.

Insider purchases & sales

Purchased: $25.33M
Sold: $383.89M

Nov 1, 2023 – Oct 5, 2026
Available records · partial months are marked ·

20256 of 6 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 26, 2025	Kearns Evan Chief Legal Officer	Sale	$2.52M 65,000 shares sold	37.27% sold Direct holding	▾
Dec 26, 2025	Green John L. Chief Financial Officer	Sale	$2.98M 77,000 shares sold	36.87% sold Direct holding	▾
Dec 26, 2025	Sachs Jessica Chief Medical Officer	Sale	$3.20M 82,642 shares sold	38.16% sold Direct holding	▾
Dec 26, 2025	Robinson John Edward Chief Scientific Officer	Sale	$3.49M 90,000 shares sold	39.13% sold Direct holding	▾
Jul 10, 2025	Fairmount Funds Management LLC Director	Purchase	$25.00M 2,777,777 shares bought	44.62% added Indirect holding	▾
Jan 14, 2025	Pinnow Cole Chief Commercial Officer	Purchase	$332.41K 43,750 shares bought	2,085.32% added Direct holding	▾

Showing 6 / 6 record groups in 2025. The complete set is available through the API.

Cogent Biosciences, Inc. · COGT

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 6 of 6 purchase / sale groups and 30 of 34 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"COGT","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.