ATAIBECKLEY INC (ATAI): Institutional Ownership
Hedge funds and institutional managers reporting a position in ATAI · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
12
13F filers
Aggregate Value
$49.7M
Across holders
Last Price
$5.29
2026-06-26
Sector
Health Care
GICS
Holder activity11 new1 added0 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 5.64M | $20.0M | 40.2% | 0.0% | New | — | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 2.89M | $10.2M | 20.6% | 0.0% | New | — | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 1.98M | $7.0M | 14.1% | 0.0% | New | — | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 1.30M | $4.6M | 9.3% | 0.0% | Added | +$3.2M | Q1 2026 |
| MOORE CAPITAL MANAGEMENT, LP CIK 0001448574 | Hedge Fund | 952K | $3.4M | 6.8% | 0.1% | New | — | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 544K | $1.9M | 3.9% | 0.0% | New | — | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 237K | $839K | 1.7% | 0.0% | New | — | Q1 2026 |
| Hudson Bay Capital Management LP CIK 0001393825 | Hedge Fund | 188K | $667K | 1.3% | 0.0% | New | — | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 171K | $607K | 1.2% | 0.0% | New | — | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 78K | $275K | 0.6% | 0.0% | New | — | Q1 2026 |
| Ruane, Cunniff & Goldfarb L.P. CIK 0001720792 | Hedge Fund | 42K | $149K | 0.3% | 0.0% | New | — | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 11K | $37K | 0.1% | 0.0% | New | — | Q1 2026 |
New
Hedge Fund
$20.0M· 40.2% of total· 0.0% port· 5.64M sh· — QoQ· Q1 2026
New
Hedge Fund
$10.2M· 20.6% of total· 0.0% port· 2.89M sh· — QoQ· Q1 2026
New
Hedge Fund
$7.0M· 14.1% of total· 0.0% port· 1.98M sh· — QoQ· Q1 2026
Added
Hedge Fund
$4.6M· 9.3% of total· 0.0% port· 1.30M sh· +$3.2M QoQ· Q1 2026
New
Hedge Fund
$3.4M· 6.8% of total· 0.1% port· 952K sh· — QoQ· Q1 2026
New
Hedge Fund
$1.9M· 3.9% of total· 0.0% port· 544K sh· — QoQ· Q1 2026
New
Hedge Fund
$839K· 1.7% of total· 0.0% port· 237K sh· — QoQ· Q1 2026
New
Hedge Fund
$667K· 1.3% of total· 0.0% port· 188K sh· — QoQ· Q1 2026
New
Hedge Fund
$607K· 1.2% of total· 0.0% port· 171K sh· — QoQ· Q1 2026
New
Hedge Fund
$275K· 0.6% of total· 0.0% port· 78K sh· — QoQ· Q1 2026
New
Hedge Fund
$149K· 0.3% of total· 0.0% port· 42K sh· — QoQ· Q1 2026
New
Hedge Fund
$37K· 0.1% of total· 0.0% port· 11K sh· — QoQ· Q1 2026