ATAIBECKLEY INC (ATAI)
Institutional ownership reported to the SEC as of Q2 2026, across 21 quarters.
239
Reporting holders
$732.2M
Reported value
36.4%
Of shares outstanding
2.8%
Held as options
+57
Holder change
Institutions report 135,175,847 shares against 370,864,669 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $134.8M | 25,574,573 | 0.00% | 2q | +274.2%+$98.8M |
| Deep Track Capital, LP | $76.0M | 14,417,442 | 1.11% | 2q | +20.1%+$12.7M |
| VANGUARD CAPITAL MANAGEMENT LLC | $61.9M | 11,747,249 | 0.00% | 2q | HELD |
| STATE STREET CORP | $43.7M | 8,287,054 | 0.00% | 2q | +624.2%+$37.6M |
| GEODE CAPITAL MANAGEMENT, LLC | $36.5M | 6,933,309 | 0.00% | 2q | +176.2%+$23.3M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $29.7M | 5,642,758 | 0.04% | 2q | HELD |
| UBS Group AG | $23.3M | 4,424,701 | 0.00% | 2q | -40.4%-$15.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $21.6M | 4,106,450 | 0.00% | new | NEW |
| MORGAN STANLEY | $20.3M | 3,843,253 | 0.00% | 2q | HELD |
| Candriam S.C.A. | $16.0M | 3,039,399 | 0.07% | 2q | -1.5%-$247.3K |
| Foresite Capital Management VI LLC | $14.5M | 2,750,000 | 2.26% | 2q | HELD |
| NORTHERN TRUST CORP | $13.6M | 2,589,167 | 0.00% | 2q | +381.2%+$10.8M |
| CITADEL ADVISORS LLC | $13.3M | 2,114,908 | 0.00% | 2q | +1134.0%+$12.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $12.1M | 487,486 | 0.00% | 2q | -90.8%-$119.3M |
| RTW INVESTMENTS, LP | $10.5M | 2,000,000 | 0.09% | 2q | HELD |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $10.4M | 1,965,683 | 0.00% | 2q | +66.4%+$4.1M |
| Sixth Street Partners Management Company, L.P. | $10.4M | 1,965,683 | 0.00% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $9.3M | 1,770,526 | 0.00% | 2q | -59.4%-$13.7M |
| Eagle Health Investments LP | $9.0M | 1,709,359 | 1.49% | 2q | HELD |
| VANGUARD FIDUCIARY TRUST CO | $8.3M | 1,576,296 | 0.00% | 2q | +25.4%+$1.7M |
| Halter Ferguson Financial Inc. | $7.8M | 1,485,590 | 1.27% | new | NEW |
| FIRST TRUST ADVISORS LP | $7.2M | 1,375,500 | 0.00% | new | NEW |
| Nuveen, LLC | $6.8M | 1,295,262 | 0.00% | 2q | +631.3%+$5.9M |
| Newtyn Management, LLC | $6.3M | 1,187,808 | 0.78% | 2q | -33.3%-$3.1M |
| GOLDMAN SACHS GROUP INC | $5.4M | 946,100 | 0.00% | 2q | +81.6%+$2.4M |
| MOORE CAPITAL MANAGEMENT, LP | $5.0M | 952,380 | 0.07% | 2q | HELD |
| ADAR1 Capital Management, LLC | $4.8M | 913,242 | 0.22% | 2q | HELD |
| Bank of New York Mellon Corp | $4.7M | 891,983 | 0.00% | 2q | +1855.7%+$4.5M |
| GROUP ONE TRADING LLC | $4.7M | options only | 0.01% | 2q | OPTIONS |
| AdvisorShares Investments LLC | $4.7M | 882,892 | 0.56% | 2q | +55.6%+$1.7M |
| TWO SIGMA INVESTMENTS, LP | $4.3M | 822,471 | 0.00% | 2q | -58.4%-$6.1M |
| ORBIMED ADVISORS LLC | $4.2M | 797,500 | 0.08% | 2q | +129.8%+$2.4M |
| Brown University | $3.8M | 718,500 | 3.39% | 21q | HELD |
| Woodline Partners LP | $3.2M | 600,000 | 0.01% | 2q | HELD |
| BOUSSARD & GAVAUDAN GESTION SAS | $2.9M | 540,893 | 0.14% | new | FIRST |
| JGP Global Gestao de Recursos Ltda. | $2.6M | 500,000 | 5.81% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $2.6M | 490,433 | 0.00% | 2q | -40.2%-$1.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $2.6M | 490,135 | 0.00% | 2q | +84.3%+$1.2M |
| Sumitomo Mitsui Trust Group, Inc. | $2.6M | 489,613 | 0.00% | 2q | -13.7%-$410.9K |
| Amova Asset Management Americas, Inc. | $2.5M | 483,952 | 0.03% | 3q | -14.7%-$439.9K |
| Swiss National Bank | $2.5M | 473,700 | 0.00% | 2q | +45.4%+$778.9K |
| SIMPLEX TRADING, LLC | $2.1M | options only | 0.00% | 2q | OPTIONS |
| RHUMBLINE ADVISERS | $2.1M | 399,436 | 0.00% | new | NEW |
| Man Group plc | $1.9M | 358,812 | 0.00% | 2q | -34.0%-$973.4K |
| DEUTSCHE BANK AG\ | $1.8M | 345,042 | 0.00% | 2q | +4892.6%+$1.8M |
| BIT Capital GmbH | $1.7M | 320,576 | 0.05% | 2q | +75.6%+$727.3K |
| VOYA INVESTMENT MANAGEMENT LLC | $1.6M | 304,576 | 0.00% | new | NEW |
| WELLS FARGO & COMPANY/MN | $1.6M | 297,918 | 0.00% | 2q | +2179.4%+$1.5M |
| JPMORGAN CHASE & CO | $1.5M | 273,350 | 0.00% | 2q | +42.0%+$455.8K |
| Jefferies Financial Group Inc. | $1.5M | 275,900 | 0.01% | 2q | HELD |
| Warm Springs Advisors Inc. | $1.4M | 263,000 | 0.96% | 2q | +92.8%+$667.2K |
| CenterBook Partners LP | $1.4M | 256,623 | 0.07% | 2q | -63.7%-$2.4M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | $1.3M | 252,913 | 0.08% | 2q | +34.5%+$341.9K |
| Invesco Ltd. | $1.3M | 248,757 | 0.00% | 2q | +367.6%+$1.0M |
| AMERIPRISE FINANCIAL INC | $1.3M | 241,024 | 0.00% | 2q | -63.7%-$2.2M |
| CITIGROUP INC | $1.3M | 239,550 | 0.00% | 2q | +388.4%+$1.0M |
| ALLIANCEBERNSTEIN L.P. | $1.3M | 355,500 | 0.00% | 2q | +1576.9%+$1.2M |
| Jump Financial, LLC | $1.2M | 218,675 | 0.01% | 2q | +375.1%+$909.9K |
| Catalio Capital Management, LP | $1.0M | 196,858 | 0.19% | 2q | HELD |
| Axxion S.A. | $1.0M | 193,223 | 0.07% | new | FIRST |
| Rockefeller Capital Management L.P. | $996.0K | 189,000 | 0.00% | 2q | +5.6%+$52.7K |
| MetLife Investment Management, LLC | $994.3K | 188,676 | 0.00% | new | NEW |
| Burkehill Global Management, LP | $975.0K | 185,000 | 0.04% | 2q | HELD |
| JANE STREET GROUP, LLC | $961.2K | options only | 0.00% | 2q | OPTIONS |
| BARCLAYS PLC | $948.0K | 179,877 | 0.00% | 2q | +370.7%+$746.5K |
| STABLEFORD CAPITAL II LLC | $887.2K | 168,350 | 0.31% | new | NEW |
| Legal & General Group Plc | $878.9K | 166,783 | 0.00% | 2q | +57.9%+$322.2K |
| VANGUARD ASSET MANAGEMENT, Ltd | $876.5K | 166,315 | 0.00% | 2q | +50.5%+$294.2K |
| Walleye Capital LLC | $806.4K | 60,818 | 0.00% | new | NEW |
| AXON CAPITAL LP | $805.8K | 152,904 | 1.09% | 2q | -50.0%-$805.8K |
| Diametric Capital, LP | $783.7K | 148,702 | 0.08% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $774.2K | 146,911 | 0.00% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $768.4K | 145,800 | 0.00% | 2q | +127.5%+$430.6K |
| Carrera Capital Advisors | $724.9K | 137,560 | 0.11% | 2q | HELD |
| NewEdge Advisors, LLC | $638.3K | 121,116 | 0.00% | new | NEW |
| LPL Financial LLC | $620.2K | 117,676 | 0.00% | 2q | +412.4%+$499.1K |
| STATE OF WISCONSIN INVESTMENT BOARD | $586.0K | 111,188 | 0.00% | 2q | +7.5%+$40.7K |
| MARSHALL WACE, LLP | $579.8K | 110,019 | 0.00% | 3q | -95.3%-$11.9M |
| MYDA Advisors LLC | $579.7K | 110,000 | 0.09% | 2q | +120.0%+$316.2K |
| INSIGNEO ADVISORY SERVICES, LLC | $549.4K | 104,252 | 0.02% | new | NEW |
| Lighthouse Investment Partners, LLC | $545.0K | 103,420 | 0.01% | 2q | +695.5%+$476.5K |
| Eversept Partners, LP | $539.8K | 102,430 | 0.03% | new | NEW |
| Verdad Advisers, LP | $530.6K | 100,681 | 0.51% | 2q | -55.8%-$669.2K |
| Police & Firemen's Retirement System of New Jersey | $498.0K | 94,497 | 0.00% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $494.9K | 93,900 | 0.00% | new | NEW |
| Z3 Capital Partners, LLC | $487.6K | 92,525 | 0.10% | new | NEW |
| EntryPoint Capital, LLC | $455.8K | 86,497 | 0.11% | new | NEW |
| Virtus Investment Advisers, LLC | $439.9K | 83,469 | 0.10% | 2q | +31.3%+$104.9K |
| TUDOR INVESTMENT CORP ET AL | $431.7K | 81,911 | 0.00% | new | NEW |
| Jupiter Topco LLC | $418.0K | 79,400 | 0.00% | new | FIRST |
| State of New Jersey Common Pension Fund D | $402.3K | 76,338 | 0.00% | 2q | +35.1%+$104.6K |
| Vontobel Holding Ltd. | $399.9K | 75,878 | 0.00% | 2q | +279.4%+$294.5K |
| Vanguard Global Advisers, LLC | $397.6K | 75,442 | 0.00% | 2q | -14.7%-$68.4K |
| TRUIST FINANCIAL CORP | $395.7K | 75,080 | 0.00% | 2q | +358.0%+$309.3K |
| PROFUND ADVISORS LLC | $387.9K | 73,598 | 0.01% | new | NEW |
| China Universal Asset Management Co., Ltd. | $380.4K | 72,173 | 0.02% | 2q | -4.1%-$16.2K |
| WINTON GROUP Ltd | $372.1K | 70,600 | 0.01% | 2q | +9.6%+$32.7K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $355.5K | 67,455 | 0.00% | 2q | +45.5%+$111.1K |
| SEI INVESTMENTS CO | $348.1K | 66,060 | 0.00% | new | NEW |
| Vanguard Investments Australia, Ltd. | $346.2K | 65,697 | 0.00% | 2q | +52.5%+$119.1K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-27 | 13G | BlackRock, Inc. | 6.8% |
| 2026-07-17 | 13D/A | Christian Angermayer INDIVIDUALwith 4 co-filers | 15.4% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 239 | $732.2M | 135,175,847 | 81 | 81 | 24 | 2.8% |
| Q1 2026 | 182 | $365.0M | 100,277,966 | 159 | 6 | 3 | 2.8% |
| Q4 2025 | 132 | $231.2M | 53,650,992 | 55 | 24 | 20 | 5.1% |
| Q3 2025 | 122 | $240.5M | 41,813,197 | 42 | 30 | 13 | 8.0% |
| Q2 2025 | 90 | $66.2M | 29,225,500 | 20 | 18 | 16 | 3.3% |
| Q1 2025 | 77 | $30.9M | 21,797,963 | 10 | 15 | 18 | 4.4% |
| Q4 2024 | 82 | $19.9M | 14,197,214 | 17 | 14 | 12 | 4.8% |
| Q3 2024 | 69 | $13.5M | 11,523,222 | 6 | 11 | 18 | 1.4% |
| Q2 2024 | 82 | $16.3M | 11,920,586 | 11 | 14 | 15 | 2.2% |
| Q1 2024 | 84 | $37.0M | 17,760,636 | 11 | 15 | 20 | 5.3% |
| Q4 2023 | 81 | $23.8M | 16,603,116 | 12 | 17 | 18 | 1.5% |
| Q3 2023 | 92 | $19.2M | 14,526,675 | 5 | 17 | 24 | 1.7% |
| Q2 2023 | 92 | $27.2M | 15,115,356 | 9 | 22 | 19 | 4.2% |
| Q1 2023 | 94 | $29.1M | 15,654,043 | 12 | 27 | 25 | 2.7% |
| Q4 2022 | 97 | $64.2M | 22,573,915 | 27 | 31 | 15 | 6.5% |
| Q3 2022 | 98 | $90.1M | 26,658,868 | 16 | 30 | 15 | 2.0% |
| Q2 2022 | 94 | $81.8M | 21,691,597 | 27 | 33 | 13 | 2.7% |
| Q1 2022 | 83 | $91.8M | 16,026,417 | 22 | 23 | 23 | 11.2% |
| Q4 2021 | 83 | $130.3M | 14,613,238 | 42 | 21 | 8 | 14.5% |
| Q3 2021 | 57 | $182.9M | 11,585,530 | 25 | 8 | 12 | 7.1% |
| Q2 2021 | 43 | $212.2M | 11,635,398 | 43 | 0 | 0 | 0.0% |