Director Files Intent to Sell $3 Million in Atai Beckley Stock
ATAI has more than doubled off its 52-week low of $1.15 on elevated volume (2.5× avg).
Summary
Atai Beckley N.V. Director Cosmo Feilding-Mellen has filed a Form 144 indicating an intent to sell 750,000 shares of common stock, valued at approximately $3 million.
Key Events · Ownership and Investor Activity · ATAI
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Director Files Intent to Sell
Cosmo Feilding-Mellen, a Director of Atai Beckley N.V., has filed a Form 144 to sell 750,000 shares of common stock.
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Significant Value
The proposed sale has an approximate market value of $3,000,000.00.
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Shares Acquired via RSU
The shares were acquired on December 24, 2025, through restricted stock units as equity compensation.
Analysis · ATAI · Life Sciences
This Form 144 filing signals a significant intent to sell by a company director. While the shares were acquired recently through restricted stock units, the proposed sale of $3 million worth of stock represents a notable disposition by an insider. Investors may view this as a potential lack of confidence or a move to diversify holdings, which could exert some downward pressure or create an overhang on the stock.
How filings like this one have moved
In the 30 days to Sep 11, 2026, 30.2% of the 1943 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.21%. 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, ATAI was trading at $3.73 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $1.4B. The 52-week trading range was $1.15 to $6.75. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.