Cosmo Feilding-Mellen insider trades: AtaiBeckley (ATAI) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Cosmo reports to the SEC
Open-market buys and sales
1 trade reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 2, 2026 | ATAI | ↓ Sell | 39,594 | $3.90 | $154K | Direct | Jan 6, 2026 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ATAI insiders
Open-market trades in the last 12 months
About Cosmo Feilding-Mellen's insider trades
Cosmo Feilding-Mellen is an insider at AtaiBeckley (ATAI). Since Jan 2, 2026, Cosmo has reported no open-market purchases and 1 sale worth $154K on SEC Form 4. In the last 12 months: 1 sale ($154K).
Their filings also include grants and awards (2 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ATAI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.