ATAI Life Sciences N.V. (ATAI)

Latest Insider Confidence Score

2025Q4

51.8
Bullish

Company insider confidence (by quarter)

2021Q2 2025Q4

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Presight II, LP 10% Owner 27,805,200 Aug 25, 2021
ATAI Life Sciences N.V. — 9,565,774 Feb 28, 2022
ATAI Life Sciences AG — 9,565,774 Feb 28, 2022
Auerbach Michael Director 5,564,474 Jun 24, 2021
Apeiron Investment Group Ltd. 10% Owner 1,799,302 Oct 2, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Nov 25, 2025 Nov 26, 2025 Feilding-Mellen Cosmo Director Neutral 52.5 - 0.00% ✗ -
Nov 5, 2025 Nov 6, 2025 HERSHBERG ROBERT Director Neutral 52.5 - 0.00% ✗ -
Nov 5, 2025 Nov 6, 2025 Feilding-Mellen Cosmo Director Neutral 90.0 +7,702,990 100.00% ✗ -
Nov 4, 2025 Nov 6, 2025 Braunstein Scott Director Neutral 52.5 - 0.00% ✗ -
Nov 6, 2025 HERSHBERG ROBERT Director Neutral 52.5 - 0.00% ✗ -
Nov 6, 2025 Feilding-Mellen Cosmo Director Neutral 52.5 - 0.00% ✗ -
Oct 1, 2025 Oct 3, 2025 Barrett Christopher Ryan Cave Officer Neutral 52.5 - 0.00% ✗ -
Oct 3, 2025 Barrett Christopher Ryan Cave Officer Neutral 52.5 - 0.00% ✗ -
Sep 30, 2025 Oct 2, 2025 Apeiron Investment Group Ltd. 10% Owner Neutral 52.5 - 0.00% ✗ -
Aug 14, 2025 Aug 18, 2025 Apeiron Investment Group Ltd. 10% Owner Buy 100.0 +8,675,799 19.64% ✗ $19M
Aug 13, 2025 Aug 15, 2025 Rao Srinivas Officer Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Smiley Andrea Heslin Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Kalali Amir H Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 JOHNSON SABRINA MARTUCCI Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Hoffman John Francis Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Fischer Laurent Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Braunstein Scott Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
Jun 2, 2025 Jun 4, 2025 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
May 23, 2025 Hoffman John Francis Director Neutral 52.5 - 0.00% ✗ -
Mar 21, 2025 Mar 24, 2025 Kirpekar Sahil Chief Business Officer Sell 22.5 -48,563 -29.58% ✗ $65.6K
Mar 21, 2025 Mar 24, 2025 Craig Kevin James Chief Medical Officer Sell 26.3 -11,563 -57.82% ✗ $15.6K
Mar 21, 2025 Mar 24, 2025 Rao Srinivas Officer Sell 22.5 -75,418 -25.84% ✗ $101.8K
Mar 21, 2025 Mar 24, 2025 Johnson Anne Nagengast CFO Sell 26.3 -33,545 -19.32% ✗ $45.3K
Mar 21, 2025 Mar 24, 2025 Short Glenn Frank Chief Scientific Officer Sell 26.3 -13,161 -23.72% ✗ $17.8K
Mar 24, 2025 Mar 24, 2025 Apeiron Investment Group Ltd. 10% Owner Buy 92.5 +1,800,000 4.25% ✗ $2.5M
Mar 14, 2025 Mar 19, 2025 Craig Kevin James Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2025 Mar 19, 2025 Short Glenn Frank Chief Scientific Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2025 Mar 19, 2025 Rao Srinivas Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2025 Mar 19, 2025 Kirpekar Sahil Chief Business Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2025 Mar 19, 2025 Johnson Anne Nagengast CFO Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 6, 2025 Short Glenn Frank Chief Scientific Officer Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 6, 2025 Craig Kevin James Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 5, 2025 Johnson Anne Nagengast CFO Neutral 52.5 - 0.00% ✗ -
Feb 14, 2025 Feb 19, 2025 Apeiron Investment Group Ltd. 10% Owner Buy 100.0 +10,835,718 34.38% ✗ $22.8M
Jan 7, 2025 Jan 10, 2025 Rao Srinivas Officer Neutral 52.5 - 0.00% ✗ -
Jan 10, 2025 Short Glenn Frank Chief Scientific Officer Neutral 52.5 - 0.00% ✗ -
Jan 10, 2025 Craig Kevin James Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Jan 2, 2025 Jan 3, 2025 Kochendoerfer Gerd COO Neutral 52.5 - 0.00% ✗ -
Dec 13, 2024 Kochendoerfer Gerd COO Neutral 52.5 - 0.00% ✗ -
Oct 4, 2024 Oct 4, 2024 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
Oct 4, 2024 Oct 4, 2024 Johnson Anne Nagengast CFO Neutral 52.5 - 0.00% ✗ -
Oct 4, 2024 Oct 4, 2024 Rao Srinivas Officer Neutral 52.5 - 0.00% ✗ -
Oct 4, 2024 Oct 4, 2024 Brand Florian Officer Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 Auerbach Michael Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 Smiley Andrea Heslin Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 Braunstein Scott Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 Fischer Laurent Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 Kalali Amir H Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2024 Jun 14, 2024 JOHNSON SABRINA MARTUCCI Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2024 Braunstein Scott Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2024 Fischer Laurent Director Neutral 52.5 - 0.00% ✗ -
May 16, 2024 May 20, 2024 Brand Florian Officer Sell 20.0 -151,303 -31.37% ✗ $290.5K
Apr 19, 2024 May 3, 2024 ATAI Life Sciences N.V. 10% Owner Neutral 52.5 - 0.00% ✗ -
Apr 15, 2024 Apr 17, 2024 Apeiron Investment Group Ltd. 10% Owner Neutral 52.5 - 0.00% ✗ -
Apr 2, 2024 Apr 4, 2024 Johnson Anne Nagengast CFO Sell 22.5 -27,410 -27.14% ✗ $50.7K
Apr 2, 2024 Apr 4, 2024 Rao Srinivas Officer Sell 22.5 -61,640 -34.53% ✗ $114K
Apr 2, 2024 Apr 4, 2024 Kirpekar Sahil Chief Business Officer Sell 22.5 -35,801 -35.80% ✗ $66.2K
Mar 14, 2024 Mar 15, 2024 Johnson Anne Nagengast CFO Neutral 52.5 - 0.00% ✗ -
Mar 14, 2024 Mar 15, 2024 Kirpekar Sahil Chief Business Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2024 Mar 15, 2024 Rao Srinivas Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2024 Mar 15, 2024 Brand Florian Officer Neutral 52.5 - 0.00% ✗ -
Sep 30, 2023 Mar 12, 2024 ATAI Life Sciences N.V. 10% Owner Neutral 52.5 - 0.00% ✗ -
Jan 5, 2024 Jan 9, 2024 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
Nov 16, 2023 Nov 20, 2023 Brand Florian Officer Buy 91.3 +20,000 17.80% ✗ $23.1K
Sep 13, 2023 Sep 14, 2023 Brand Florian Officer Buy 95.0 +40,000 55.30% ✗ $58K
Aug 31, 2023 Sep 5, 2023 ATAI Life Sciences N.V. 10% Owner Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 JOHNSON SABRINA MARTUCCI Director Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 Auerbach Michael Director Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 Smiley Andrea Heslin Director Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 Camm Jason Director Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 Kalali Amir H Director Neutral 52.5 - 0.00% ✗ -
May 19, 2023 Johnson Anne Nagengast Chief Accounting Officer Neutral 52.5 - 0.00% ✗ -
Mar 29, 2023 Mar 30, 2023 Brand Florian Officer Buy 95.0 +70,000 3000.43% ✗ $103.6K
Mar 29, 2023 Mar 29, 2023 Apeiron Investment Group Ltd. 10% Owner Buy 92.5 +1,214,297 3.72% ✗ $1.6M
Mar 14, 2023 Mar 16, 2023 Rao Srinivas Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2023 Mar 16, 2023 Brand Florian Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2023 Mar 16, 2023 Bardin Stephen CFO Neutral 52.5 - 0.00% ✗ -
Mar 14, 2023 Mar 16, 2023 Gutierrez-Esteinou Rolando Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Mar 14, 2023 Mar 16, 2023 Kirpekar Sahil Chief Business Officer Neutral 52.5 - 0.00% ✗ -
Dec 1, 2022 Dec 2, 2022 Kirpekar Sahil Chief Business Officer Neutral 52.5 - 0.00% ✗ -
Dec 2, 2022 Kirpekar Sahil Chief Business Officer Neutral 52.5 - 0.00% ✗ -
Aug 17, 2022 Bardin Stephen CFO Neutral 52.5 - 0.00% ✗ -
May 25, 2022 May 27, 2022 Smiley Andrea Heslin Director Neutral 52.5 - 0.00% ✗ -
May 25, 2022 May 27, 2022 Kalali Amir H Director Neutral 52.5 - 0.00% ✗ -
May 25, 2022 May 27, 2022 Auerbach Michael Director Neutral 52.5 - 0.00% ✗ -
May 25, 2022 May 27, 2022 Angermayer Christian Director Neutral 52.5 - 0.00% ✗ -
May 25, 2022 May 27, 2022 JOHNSON SABRINA MARTUCCI Director Neutral 52.5 - 0.00% ✗ -
May 25, 2022 May 27, 2022 de Rosnay Alexis Director Neutral 52.5 - 0.00% ✗ -
Apr 20, 2022 May 3, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 92.5 +136,391 9.22% ✗ $684.6K
Apr 28, 2022 May 2, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 90.0 +56,600 3.25% ✗ $252.5K
Apr 26, 2022 Apr 28, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 90.0 +66,010 3.94% ✗ $308.6K
Apr 22, 2022 Apr 26, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 90.0 +61,781 3.83% ✗ $297.8K
Apr 18, 2022 Apr 20, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 92.5 +119,637 8.80% ✗ $612.4K
Apr 14, 2022 Apr 18, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 61.3 +4,967 0.37% ✗ $25.8K
Apr 12, 2022 Apr 14, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 90.0 +55,197 4.25% ✗ $269.6K
Apr 8, 2022 Apr 12, 2022 Apeiron Investment Group Ltd. 10% Owner Buy 92.5 +111,615 9.40% ✗ $538.2K
Apr 6, 2022 Apr 7, 2022 Apeiron Investment Group Ltd. 10% Owner Neutral 52.5 - 0.00% ✗ -