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Buy Day today: Good (62) Broad market participation · no major macro event
COGT

Cogent Biosciences Inc

Healthcare · Biotechnology

33.20$ +2.0% vs. previous close Closing price · As of: Sep 17, 2026

Ownership

Ownership Structure

Who owns Cogent Biosciences Inc (COGT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.4% of the shares are freely tradable; institutional investors hold 112.3%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 112.3%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 0.4%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 99.4%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 10.9%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 174Mio.

Largest Shareholders

Institutions

Institutions COGT
Name Stake (%) Shares Change (%) Date
FMR Inc 13.33 23,122,748 +0.2 03/31/2026
BlackRock Inc 9.25 16,045,014 +23.7 03/31/2026
Deerfield Management Co 5.21 9,043,903 +0.0 03/31/2026
Vanguard Portfolio Management, LLC 4.23 7,333,333 +0.0 03/31/2026
Vanguard Capital Management, LLC 3.97 6,894,959 +0.0 03/31/2026
HHG PLC 3.44 5,965,125 +31.5 03/31/2026
State Street Corp 3.26 5,663,543 +14.6 03/31/2026
Fairmount Funds Management LLC 3.17 5,503,418 -38.9 03/31/2026
RTW INVESTMENTS, LLC 3.15 5,458,675 -28.1 03/31/2026

Funds

Funds COGT
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 2.98 5,175,246 +0.3 07/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insiders

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
Aug 27, 2026 Morris Arlene Director Sell 3,161 37.54 118,663
Aug 27, 2026 Morris Arlene Director Sell 42,349 37.09 1,570,830
Aug 27, 2026 Morris Arlene Director Other 3,583 2.52 9,029
Aug 27, 2026 Morris Arlene Director Other 41,927 5.64 236,468

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →

Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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