ATAI LIFE SCIENCES NV ATAI
SHS · Common Stock · CUSIP N0731H103
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $3.31. Options: 5 managers hold calls ($997.0k notional), 5 hold puts ($824.0k).
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $620.0k187.4k shares |
| SIMPLEX TRADING, LLC | — | $223.0k67.6k shares |
| CITADEL ADVISORS LLC | — | $122.0k36.9k shares |
| GROUP ONE TRADING LLC | — | $32.0k9.7k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | — | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $436.0k131.6k shares |
| SIMPLEX TRADING, LLC | — | $174.0k52.8k shares |
| CITADEL ADVISORS LLC | — | $148.0k44.6k shares |
| GROUP ONE TRADING LLC | — | $66.0k20.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | — | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution new · filed 2026-07-27 | 6.8% |
Holders, Q3 2022
| Manager | Shares | Change |
|---|---|---|
| ARK Investment Management LLC 0.14% of their portfolio | 6.1m $20.3m | — |
| MORGAN STANLEY 0.00% of their portfolio | 2.3m $7.8m | — |
| Alpha Wave Global, LP 0.84% of their portfolio | 2.1m $7.1m | — |
| BlackRock Inc. 0.00% of their portfolio | 1.5m $5.1m | — |
| Rubric Capital Management LP 0.22% of their portfolio | 1.3m $4.4m | — |
| MONTANOVA CAPITAL, LLC 0.17% of their portfolio | 1.2m $4.1m | — |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 1.0m $3.4m | — |
| Woodline Partners LP 0.04% of their portfolio | 925.2k $3.1m | — |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 900.4k $3.0m | — |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 752.6k $2.5m | — |
| PURA VIDA INVESTMENTS, LLC 0.36% of their portfolio | 721.8k $2.4m | — |
| Brown University 0.96% of their portfolio | 718.5k $2.4m | — |
| Round Table Services, LLC 0.46% of their portfolio | 704.0k $2.3m | — |
| VANGUARD GROUP INC 0.00% of their portfolio | 484.6k $1.6m | — |
| Newtyn Management, LLC 0.34% of their portfolio | 470.0k $1.6m | — |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 449.4k $1.5m | — |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 356.4k $1.2m | — |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 323.8k $1.1m | — |
| HIGHLINE CAPITAL MANAGEMENT, L.P. 1.99% of their portfolio | 309.7k $1.0m | — |
| Swiss National Bank 0.00% of their portfolio | 283.9k $940.0k | — |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 252.4k $835.0k | — |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 248.3k $822.0k | — |
| AdvisorShares Investments LLC 0.17% of their portfolio | 190.6k $631.0k | — |
| Hyperion Capital Advisors LP 0.27% of their portfolio | 168.4k $557.0k | — |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 122.3k $405.0k | — |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 121.5k $402.0k | — |
| NORTHERN TRUST CORP 0.00% of their portfolio | 118.3k $391.0k | — |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.03% of their portfolio | 108.5k $359.0k | — |
| STATE STREET CORP 0.00% of their portfolio | 106.8k $354.0k | — |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 105.4k $349.0k | — |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 103.7k $343.0k | — |
| BIT Capital GmbH 0.07% of their portfolio | 103.2k $341.7k | — |
| Cubist Systematic Strategies, LLC 0.00% of their portfolio | 103.1k $341.0k | — |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 99.3k $330.0k | — |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 99.1k $328.2k | — |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 86.0k $284.0k | — |
| SG Americas Securities, LLC 0.00% of their portfolio | 84.5k $280.0k | — |
| QUATTRO FINANCIAL ADVISORS LLC 0.09% of their portfolio | 71.0k $235.0k | — |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 63.9k $212.0k | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 58.8k $195.0k | — |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 50.4k $167.0k | — |
| Virtu Financial LLC 0.01% of their portfolio | 46.0k $152.0k | — |
| MARSHALL WACE, LLP 0.00% of their portfolio | 43.9k $147.0k | — |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 42.6k $140.9k | — |
| HighTower Advisors, LLC 0.00% of their portfolio | 40.4k $132.0k | — |
| CITIGROUP INC 0.00% of their portfolio | 37.9k $126.0k | — |
| TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio | 35.0k $116.0k | — |
| BRIGHTON JONES LLC 0.01% of their portfolio | 34.6k $114.0k | — |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 32.8k $108.0k | — |
| BOULDER HILL CAPITAL MANAGEMENT LP 0.08% of their portfolio | 32.4k $107.0k | — |
| VIRTUS ADVISERS, LLC 0.04% of their portfolio | 32.3k $107.0k | — |
| Legal & General Group Plc 0.00% of their portfolio | 31.9k $105.0k | — |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 29.9k $99.0k | — |
| UBS Group AG 0.00% of their portfolio | 29.5k $98.0k | — |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 25.3k $84.0k | — |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 25.0k $82.8k | — |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 24.6k $81.0k | — |
| WELCH CAPITAL PARTNERS LLC/NY 0.03% of their portfolio | 24.0k $79.0k | — |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 22.0k $71.0k | — |
| Wealthspire Advisors, LLC 0.00% of their portfolio | 20.9k $69.0k | — |
| M Holdings Securities, Inc. 0.01% of their portfolio | 20.5k $68.0k | — |
| Man Group plc 0.00% of their portfolio | 20.2k $67.0k | — |
| Williams Jones Wealth Management, LLC. 0.00% of their portfolio | 20.0k $66.0k | — |
| Verdence Capital Advisors LLC 0.01% of their portfolio | 19.1k $63.0k | — |
| Lumina Fund Management LLC 0.03% of their portfolio | 17.5k $58.0k | — |
| SEAVIEW INVESTMENT MANAGERS LLC 0.02% of their portfolio | 17.3k $57.0k | — |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 17.2k $57.0k | — |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 17.0k $57.0k | — |
| EXCHANGE TRADED CONCEPTS, LLC 0.00% of their portfolio | 17.0k $56.0k | — |
| Audent Global Asset Management, LLC 0.08% of their portfolio | 16.8k $56.0k | — |
| Cresset Asset Management, LLC 0.00% of their portfolio | 15.9k $53.0k | — |
| Hunter Perkins Capital Management, LLC 0.01% of their portfolio | 15.7k $52.0k | — |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 15.0k $50.0k | — |
| PICTET ASSET MANAGEMENT SA 0.00% of their portfolio | 14.1k $47.0k | — |
| ProShare Advisors LLC 0.00% of their portfolio | 13.6k $45.0k | — |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 13.0k $43.0k | — |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 11.8k $39.0k | — |
| Creative Planning 0.00% of their portfolio | 11.1k $37.0k | — |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 11.1k $37.0k | — |
| TWO SIGMA SECURITIES, LLC 0.00% of their portfolio | 10.7k $35.0k | — |
| Freestone Capital Holdings, LLC 0.00% of their portfolio | 10.0k $33.0k | — |
| Quantbot Technologies LP 0.00% of their portfolio | 9.2k $30.0k | — |
| Crewe Advisors LLC 0.00% of their portfolio | 5.5k $18.0k | — |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 4.0k $13.0k | — |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 3.1k $11.0k | — |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 2.2k $7.0k | — |
| China Universal Asset Management Co., Ltd. 0.00% of their portfolio | 1.5k $5.0k | — |
| SIGNATUREFD, LLC 0.00% of their portfolio | 1.4k $5.0k | — |
| Eagle Bay Advisors LLC 0.00% of their portfolio | 1.3k $4.0k | — |
| Tortoise Investment Management, LLC 0.00% of their portfolio | 1.0k $3.0k | — |
| Westside Investment Management, Inc. 0.00% of their portfolio | 850 $2.0k | — |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 468 $2.0k | — |
| TD Waterhouse Canada Inc. 0.00% of their portfolio | 400 $1.3k | — |
| IFP Advisors, Inc 0.00% of their portfolio | 250 $5.0k | — |
| JANICZEK WEALTH MANAGEMENT, LLC 0.00% of their portfolio | 212 $1.0k | — |
| Federation des caisses Desjardins du Quebec 0.00% of their portfolio | 150 $497 | — |
| North Star Investment Management Corp. 0.00% of their portfolio | 100 $0 | — |
| FinTrust Capital Advisors, LLC 0.00% of their portfolio | 100 $0 | — |
| Parallel Advisors, LLC 0.00% of their portfolio | 100 $0 | — |
| Global Retirement Partners, LLC 0.00% of their portfolio | 80 $0 | — |