Director-Affiliated Fund Files Intent to Sell $242.6M in Cogent Biosciences Shares
COGT has more than doubled off its 52-week low of $3.72 on elevated volume (2.2× avg).
Summary
A fund affiliated with a director of Cogent Biosciences has filed a Form 144 indicating intent to sell 7 million common shares valued at $242.6 million, following a conversion of preferred stock.
Key Events · Ownership and Investor Activity · COGT
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Intent to Sell Significant Stake
Fairmount Healthcare Fund II L.P., affiliated with a company director, filed a Form 144 to sell 7 million common shares.
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Substantial Value
The proposed sale is valued at approximately $242.6 million, representing a material portion of the company's market capitalization.
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Conversion of Preferred Stock
The shares intended for sale were acquired through the conversion of Series A Convertible Preferred Stock, indicating a strategic move to liquidate a position.
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Follows Prior Sales
This intent to sell follows the sale of 3.5 million shares by the same entity in the preceding three months, suggesting a pattern of distribution.
Analysis · COGT · Life Sciences
Fairmount Healthcare Fund II L.P., an investment vehicle managed by Fairmount Funds Management LLC, which has a director (Peter Harwin) on Cogent Biosciences' board, has filed a Form 144 to sell a substantial block of shares. This filing indicates an intent to sell 7 million common shares, valued at approximately $242.6 million, which were acquired through the conversion of Series A Convertible Preferred Stock. This proposed sale represents a significant distribution by a key insider-affiliated entity, following previous sales of 3.5 million shares in the last three months. The concurrent Schedule 13D/A filing confirms the execution of this sale, making this Form 144 a critical precursor to a major insider-affiliated divestment. This large-scale selling activity by a director-affiliated fund could signal a lack of conviction or a strategic portfolio rebalancing, potentially creating an overhang on the stock.
How filings like this one have moved
In the 30 days to Oct 5, 2026, 42.7% of the 288 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.53%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, COGT was trading at $38.50 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $6.2B. The 52-week trading range was $3.72 to $43.73. This filing was assessed with negative market sentiment and an importance score of 9 out of 10.