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Cosmo Feilding-Mellen

Director

Cosmo Feilding-Mellen (Director) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in AtaiBeckley Inc. (ATAI). The largest single filing was $154K of ATAI (39,594 sh × $3.90, as filed), executed Jan 2.

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Return, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$154K
shares × price, as filed
Last traded
Jan 2
Filed Jan 6

Median ADV $86.8M across their filed names

Open performance→
Volume by month
$154K$77K$0Oct 2024Apr 2025Oct 2025Apr 2026Jan 2026 · sells $154K
Buys $0 Sells $154K

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 1 filing

Sector per market data · by filing · past 12 months

Most traded names
ATAI AtaiBeckley Inc. ATAI · 0 buys · 1 sell 1 filing
Recent filings
ATAISALE AtaiBeckley Inc. View filing → $154K
39,594 sh × $3.90
Exec Jan 2
Filed Jan 6 · 5:30 PM ET