Atai Life Sciences

ATAI13F as of Jun 30, 2026 · next update ~Nov 14

Limited coverage

Only 1 fund we track owns this stock, so quarterly sentiment and aggregates may be sparse.

Who's buying ATAI

Top funds mostly trimmed Atai Life Sciences in Q4 (Oct⁠–⁠Dec)

Buying:

FundsInsidersCongress

Top funds
0 of 1 bought more, 1 sold some. Largest: Ruane Cunniff & Goldfarb, $222K (0% of its portfolio).
Insiders
No buys, 6 sales in 12 months.
Congress
No trades disclosed in the last 12 months.

1 fund$221,930 held0.0% avg. weightQ4: 0 bought / 1 sold

13F reports are a snapshot as of Dec 31, 2025; funds may have traded since. Insiders often sell for personal reasons (taxes, diversification, planned sales).

Share price · market data, not from 13F reports

Q2 2026

Insider trades (Form 4)

Last 2 years · 14 filings

Net buying$46.18M

Date	Insider	Type	Shares	Price	Value
Jul 7, 2026	Robert Hershberg Director	Sold	100,000	$4.96	$496K
Jun 25, 2026	Kevin James Craig	Sold	42,579	$4.51	$192K
Jun 26, 2026	Gerd Kochendoerfer COO	Sold	50,000	$5.00	$250K
Apr 20, 2026	Kevin James Craig	Sold	42,579	$5.00	$213K
Mar 20, 2026	Kevin James Craig	Sold	100,000	$3.55	$355K
Jan 2, 2026	Cosmo Feilding-mellen Director	Sold	39,594	$3.90	$154K
Aug 14, 2025	Apeiron Investment Group Ltd. 10% Owner	Bought	8,675,799	$2.19	$19.00M
Mar 21, 2025	Sahil Kirpekar	Sold	48,563	$1.35	$66K
Mar 21, 2025	Kevin James Craig	Sold	11,563	$1.35	$16K
Mar 21, 2025	Srinivas Rao	Sold	75,418	$1.35	$102K
Mar 21, 2025	Anne Nagengast Johnson CFO	Sold	33,545	$1.35	$45K
Mar 21, 2025	Glenn Frank Short	Sold	13,161	$1.35	$18K
Mar 24, 2025	Apeiron Investment Group Ltd. 10% Owner	Bought	1,800,000	$1.40	$2.52M
Feb 14, 2025	Apeiron Investment Group Ltd. 10% Owner	Bought	10,835,718	$2.10	$22.76M