Latest Institutional Sells of Atai Life Sciences N.V. (ATAI)
This list provides information on the latest institutional transactions involving Atai Life Sciences N.V. (ATAI) stock that were sells. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the sale has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 13, 2025
Q3 2025
|
Pale Fire Capital Se
Prague, 2N |
SELL
|
- |
-1.56M- 59.07% |
$4.09M - $8.75M
|
1.08M
$4.32M
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
SELL
|
- |
-146K- 28.67% |
$383K - $820K
|
364K
$1.46M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
SELL
|
- |
-90.4K- 7.61% |
$237K - $507K
|
1.1M
$4.39M
|
|
|
Nov 12, 2025
Q3 2025
|
Barclays PLC
London, X0 |
SELL
|
- |
-67.3K- 40.85% |
$176K - $378K
|
97.5K
$390K
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
SELL
|
- |
-22.5K- 0.29% |
$58.9K - $126K
|
7.68M
$30.7M
|
|
|
Oct 23, 2025
Q3 2025
|
Kingswood Wealth Advisors, LLC
San Diego, CA |
SELL
|
- |
-20K- 33.33% |
$52.4K - $112K
|
40K
$160K
|
|
|
Nov 13, 2025
Q3 2025
|
Diametric Capital, LP
Boston, MA |
SELL
|
- |
-12.2K- 23.03% |
$32K - $68.5K
|
40.8K
$163K
|
|
|
Nov 10, 2025
Q3 2025
|
Bit Capital Gmb H
Berlin, 2M |
SELL
|
- |
-10.7K- 46.16% |
$28.1K - $60.1K
|
12.5K
$50K
|
|
|
Nov 14, 2025
Q3 2025
|
Prelude Capital Management, LLC
New York, NY |
SELL
|
- |
-9.45K- 45.57% |
$24.8K - $53K
|
11.3K
$45.2K
|
|
|
Nov 13, 2025
Q3 2025
|
Invesco Ltd.
Atlanta, GA |
SELL
|
- |
-6.17K- 38.06% |
$16.2K - $34.6K
|
10K
$40.1K
|
|
|
Nov 13, 2025
Q3 2025
|
Russell Investments Group, Ltd.
|
SELL
|
- |
-71- 75.53% |
$186 - $398
|
23
$92
|
|
|
Nov 12, 2025
Q3 2025
|
Robertson Stephens Wealth Management, LLC
San Francisco, CA |
SELL
|
- |
-12- 0.07% |
$31.4 - $67.3
|
16.7K
$66.8K
|
|
| Q2 2025 | |||||||
|
Aug 13, 2025
Q2 2025
|
Peak6 LLC
Chicago, IL |
SELL
|
- |
-21.3K- 9.27% |
$25.8K - $53K
|
209K
$834K
|
|
|
Jul 22, 2025
Q2 2025
|
Capital Advisors Inc
|
SELL
|
- |
-20K- 28.57% |
$24.2K - $49.8K
|
50K
$200K
|
|
|
Aug 05, 2025
Q2 2025
|
Freestone Capital Holdings, LLC
Seattle, WA |
SELL
|
- |
-10K- 33.33% |
$12.1K - $24.9K
|
20K
$80K
|
|
|
Jul 22, 2025
Q2 2025
|
Hunter Perkins Capital Management, LLC
|
SELL
|
- |
-2.5K- 14.5% |
$3.03K - $6.23K
|
14.7K
$59K
|
|
|
Aug 13, 2025
Q2 2025
|
Cerity Partners LLC
New York, NY |
SELL
|
- |
-199- 0.43% |
$241 - $496
|
46.3K
$185K
|
|
| Q4 2024 | |||||||
|
Jan 13, 2025
Q4 2024
|
Wedmont Private Capital
|
SELL
|
- |
-2K- 7.41% |
$2.12K - $3.56K
|
25K
$100K
|
|
|
Feb 14, 2025
Q4 2024
|
Cresset Asset Management, LLC
Chicago, IL |
SELL
|
- |
-340- 0.94% |
$360 - $605
|
36K
$144K
|
|
| Q3 2024 | |||||||
|
Nov 14, 2024
Q3 2024
|
Walleye Capital LLC
Plymouth, MN |
SELL
|
- |
-498K- 18.02% |
$578K - $816K
|
2.26M
$9.06M
|
|
|
Nov 20, 2024
Q3 2024
|
Westside Investment Management, Inc.
|
SELL
|
- |
-1.2K- 48.98% |
$1.39K - $1.97K
|
1.25K
$5K
|
|
| Q2 2024 | |||||||
|
Aug 13, 2024
Q2 2024
|
Black Rock Inc.
New York, NY |
SELL
|
- |
-94.5K- 6.75% |
$120K - $246K
|
1.31M
$5.23M
|
|
|
Aug 13, 2024
Q2 2024
|
Pro Share Advisors LLC
|
SELL
|
- |
-1.3K- 11.19% |
$1.65K - $3.39K
|
10.3K
$41.3K
|
|
| Q1 2024 | |||||||
|
May 14, 2024
Q1 2024
|
Tejara Capital LTD
London, X0 |
SELL
|
- |
-30K- 10.34% |
$45K - $65.7K
|
260K
$1.04M
|
|
| Q4 2023 | |||||||
|
Jan 31, 2024
Q4 2023
|
Daiwa Securities Group Inc.
Tokyo, M0 |
SELL
|
- |
-20.8K- 97.8% |
$21.7K - $32.3K
|
468
$1.87K
|
|
| Q3 2023 | |||||||
|
Nov 13, 2023
Q3 2023
|
Northern Trust Corp
Chicago, IL |
SELL
|
- |
-46.9K- 31.86% |
$59.6K - $107K
|
100K
$402K
|
|
|
Nov 07, 2023
Q3 2023
|
Virtus ETF Advisers LLC
New York, NY |
SELL
|
- |
-5.54K- 9.06% |
$7.03K - $12.6K
|
55.6K
$222K
|
|
|
Nov 13, 2023
Q3 2023
|
Rafferty Asset Management, LLC
New York, NY |
SELL
|
- |
-2.11K- 1.21% |
$2.68K - $4.81K
|
172K
$687K
|
|
|
Nov 13, 2023
Q3 2023
|
Mariner, LLC
Overland Park, KS |
SELL
|
- |
-1.14K- 10.05% |
$1.45K - $2.61K
|
10.2K
$41K
|
|
|
Feb 14, 2024
Q3 2023
|
Toronto Dominion Bank
Toronto, Ontario, A6 |
SELL
|
- |
-271- 96.79% |
$344 - $618
|
9
$36
|
|
|
Nov 14, 2023
Q3 2023
|
Janus Henderson Group PLC
London, X0 |
SELL
|
- |
-4- 0.01% |
$5.08 - $9.12
|
61.4K
$246K
|
|
| Q2 2023 | |||||||
|
Aug 14, 2023
Q2 2023
|
Steven Cohen
Point72 Asset Management, L.P. | Stamford, Ct
|
SELL
|
- |
-38.7K- 80.38% |
$55.7K - $84.7K
|
9.44K
$37.8K
|
|
|
Aug 01, 2023
Q2 2023
|
Signaturefd, LLC
Atlanta, GA |
SELL
|
- |
-891- 38.06% |
$1.28K - $1.95K
|
1.45K
$5.8K
|
|
| Q1 2023 | |||||||
|
May 10, 2023
Q1 2023
|
Swiss National Bank
Zurich, V8 |
SELL
|
- |
-24.4K- 8.33% |
$28.5K - $65.9K
|
269K
$1.07M
|
|
|
May 15, 2023
Q1 2023
|
Williams Jones Wealth Management, Llc.
New York, NY |
SELL
|
- |
-10K- 50.0% |
$11.7K - $27K
|
10K
$40K
|
|
|
May 15, 2023
Q1 2023
|
Hsbc Holdings PLC
London, X0 |
SELL
|
- |
-3.41K- 23.67% |
$3.99K - $9.21K
|
11K
$44K
|
|
|
May 10, 2023
Q1 2023
|
Alps Advisors Inc
Denver, CO |
SELL
|
- |
-3.34K- 2.97% |
$3.91K - $9.03K
|
109K
$437K
|
|
| Q4 2022 | |||||||
|
Feb 14, 2023
Q4 2022
|
Occudo Quantitative Strategies LP
Fort Lauderdale, FL |
SELL
|
- |
-97.1K- 89.48% |
$231K - $345K
|
11.4K
$45.7K
|
|
| Q2 2022 | |||||||
|
Aug 15, 2022
Q2 2022
|
Pura Vida Investments, LLC
New York, NY |
SELL
|
- |
-556K- 43.52% |
$1.69M - $2.96M
|
722K
$2.89M
|
|
|
Aug 15, 2022
Q2 2022
|
Graticule Asia Macro Advisors LLC
New York, NY |
SELL
|
- |
-275KClosed |
$833K - $1.46M
|
0
$0
|
|
|
Aug 15, 2022
Q2 2022
|
Antara Capital LP
New York, NY |
SELL
|
- |
-258KClosed |
$782K - $1.37M
|
0
$0
|
|
|
Aug 15, 2022
Q2 2022
|
Gilder Gagnon Howe & CO LLC
New York, NY |
SELL
|
- |
-258KClosed |
$781K - $1.37M
|
0
$0
|
|
|
Jul 21, 2022
Q2 2022
|
Belvedere Trading LLC
|
SELL
|
- |
-43.6KClosed |
$132K - $232K
|
0
$0
|
|
|
Aug 15, 2022
Q2 2022
|
Voloridge Investment Management, LLC
Jupiter, FL |
SELL
|
- |
-30.2KClosed |
$91.6K - $161K
|
0
$0
|
|
|
Aug 10, 2022
Q2 2022
|
Clarkston Capital Partners, LLC
Bloomfield Hills, MI |
SELL
|
- |
-14.8KClosed |
$44.9K - $78.8K
|
0
$0
|
|
|
Aug 15, 2022
Q2 2022
|
Penserra Capital Management LLC
Orinda, CA |
SELL
|
- |
-7.99K- 8.11% |
$24.2K - $42.5K
|
90.6K
$362K
|
|
|
Aug 04, 2022
Q2 2022
|
Cutler Group LP
|
SELL
|
- |
-700Closed |
$2.12K - $3.72K
|
0
$0
|
|
|
Jul 21, 2022
Q2 2022
|
Belvedere Trading LLC
|
SELL
|
CALL |
-300Closed |
$909 - $1.6K
|
0
$0
|
|
| Q1 2022 | |||||||
|
May 12, 2022
Q1 2022
|
Jump Financial, LLC
Chicago, IL |
SELL
|
- |
-61.8KClosed |
$288K - $473K
|
0
$0
|
|
|
May 11, 2022
Q1 2022
|
Mmcap International Inc. Spc
Grand Cayman, E9 |
SELL
|
- |
-40.7KClosed |
$190K - $312K
|
0
$0
|
|