Cosmo Feilding-Mellen
CIK 2094202 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 26, 2025 · Latest: Nov. 26, 2025
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Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 5 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 25, 2025 | ATAI | A | 10,000 | — | — | 10,000 Direct | — | Acquired | |
| Nov. 25, 2025 | ATAI | D | 40,400 | — | — | 0 Direct | -100.00% | Disposed | |
| Nov. 5, 2025 | ATAI | A | 40,400 | — | — | 40,400 Direct | — | Acquired | |
| Nov. 5, 2025 | ATAI | A | 103,000 | — | — | 103,000 Direct | — | Acquired | |
| Nov. 5, 2025 | ATAI | A | 7,702,990 | — | — | 7,702,990 Direct | — | Acquired |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Nov. 25, 2025 | ATAI | Stock Option | Common Shares (10,000) | $4.48 | Nov. 5, 2035 | 10,000 | Acquired |
| Nov. 25, 2025 | ATAI | Stock Option | Common Shares (40,400) | $4.48 | Nov. 5, 2035 | 40,400 | Disposed |
| Nov. 5, 2025 | ATAI | Stock Option | Common Shares (40,400) | $4.48 | Nov. 5, 2035 | 40,400 | Acquired |
| Nov. 5, 2025 | ATAI | Stock Option | Common Shares (103,000) | $4.48 | Nov. 5, 2035 | 103,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).