ATYR PHARMA INC (ATYR): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in ATYR · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
11
13F filers
Aggregate Value
$3.9M
Across holders
Last Price
$0.53
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity9 increased1 reduced0 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 2.61M | $1.6M | 39.8% | 0.0% | Added | +$1.6M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 1.25M | $743K | 19.0% | 0.0% | Added | +$60K | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 1.24M | $741K | 18.9% | 0.0% | Added | +$684K | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 656K | $392K | 10.0% | 0.0% | Reduced | $-588K | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 368K | $221K | 5.6% | 0.0% | Added | +$63K | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 165K | $99K | 2.5% | 0.0% | Added | +$74K | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 127K | $76K | 1.9% | 0.0% | Added | — | Q2 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 51K | $30K | 0.8% | 0.0% | Added | — | Q2 2026 |
| Point72 Asset Management, L.P. CIK 0001603466 | Hedge Fund | 37K | $22K | 0.6% | 0.0% | Added | — | Q2 2026 |
| Rockefeller Capital Management L.P. CIK 0001739439 | Hedge Fund | 28K | $17K | 0.4% | 0.0% | Unchanged | +$0 | Q2 2026 |
Added
Hedge Fund
$1.6M· 39.8% of total· 0.0% port· 2.61M sh· +$1.6M QoQ· Q2 2026
Added
Hedge Fund
$743K· 19.0% of total· 0.0% port· 1.25M sh· +$60K QoQ· Q2 2026
Added
Hedge Fund
$741K· 18.9% of total· 0.0% port· 1.24M sh· +$684K QoQ· Q2 2026
Reduced
Hedge Fund
$392K· 10.0% of total· 0.0% port· 656K sh· $-588K QoQ· Q2 2026
Added
Hedge Fund
$221K· 5.6% of total· 0.0% port· 368K sh· +$63K QoQ· Q2 2026
Added
Hedge Fund
$99K· 2.5% of total· 0.0% port· 165K sh· +$74K QoQ· Q2 2026
Added
Hedge Fund
$76K· 1.9% of total· 0.0% port· 127K sh· — QoQ· Q2 2026
Added
Hedge Fund
$30K· 0.8% of total· 0.0% port· 51K sh· — QoQ· Q2 2026
Added
Hedge Fund
$22K· 0.6% of total· 0.0% port· 37K sh· — QoQ· Q2 2026
Unchanged
Hedge Fund
$17K· 0.4% of total· 0.0% port· 28K sh· +$0 QoQ· Q2 2026
Added
Hedge Fund
$14K· 0.4% of total· 0.0% port· 23K sh· +$8K QoQ· Q2 2026
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