aTYR PHARMA INC
ATYR- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001339970
No open-market purchases or sales by aTYR PHARMA INC insiders were filed in the last 90 days; 89 institutions reported holding it in 13F filings for Q2 2026, worth $23.2M in total; no superinvestor holds it.
13F holders, Q4 2022
Institutional positions in aTYR PHARMA INC as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 36
- +3 vs. Q3 2022
- Shares held
- 18.4M
- −706.5K (−3.7%) vs. Q3 2022
- Total value
- $40.2M
- −$17.0M (−29.7%) vs. Q3 2022
- New holders
- 8
- 12 more added
- Sold out
- 5
- 8 more reduced
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATYR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 89 | $23.2M |
| Q1 2026 | 111 | $43.7M |
| Q4 2025 | 84 | $42.1M |
| Q3 2025 | 103 | $43.9M |
| Q2 2025 | 110 | $336.5M |
| Q1 2025 | 87 | $186.5M |
| Q4 2024 | 77 | $198.6M |
| Q3 2024 | 56 | $84.3M |
| Q2 2024 | 47 | $75.1M |
| Q1 2024 | 56 | $81.5M |
| Q4 2023 | 46 | $58.1M |
| Q3 2023 | 41 | $58.7M |
| Q2 2023 | 41 | $77.0M |
| Q1 2023 | 37 | $72.8M |
| Q4 2022 | 36 | $40.2M |
| Q3 2022 | 33 | $57.2M |
| Q2 2022 | 36 | $53.1M |
| Q1 2022 | 41 | $105.0M |
| Q4 2021 | 47 | $153.5M |
| Q3 2021 | 42 | $172.1M |
| Q2 2021 | 29 | $33.8M |
| Q1 2021 | 25 | $26.3M |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 64 | $140 | 0.00% | +64 | New |
| PFS Partners, LLC | 406 | $890 | 0.00% | 00.0% | Unchanged |
| RE Dickinson Investment Advisors, LLC | 300 | $1.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 1,695 | $3.71K | 0.00% | +9+0.5% | Added |
| JPMorgan Chase & Co | 2,597 | $6.00K | 0.00% | +2,597 | New |
| Baker Bros. Advisors LP | 8,565 | $18.8K | 0.00% | −192,796−95.7% | Reduced |
| Charles Schwab Investment Management Inc | 10,000 | $21.9K | 0.00% | 00.0% | Unchanged |
| Tocqueville Asset Management L.P. | 10,150 | $22.2K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 12,214 | $26.0K | 0.00% | +12,214 | New |
| D.A. Davidson & Co. | 12,800 | $28.0K | 0.00% | +1,000+8.5% | Added |
| Tower Research Capital LLC (TRC) | 17,443 | $38.0K | 0.00% | −23,522−57.4% | Reduced |
| Wolverine Trading, LLC | 22,685 | $50.0K | 0.00% | +22,685 | New |
| Acadian Asset Management LLC | 26,419 | $57.0K | 0.00% | +26,419 | New |
| Citadel Advisors LLC | 37,837 | $82.9K | 0.00% | +37,837 | New |
| Ensign Peak Advisors, Inc | 37,884 | $83.0K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 45,871 | $100.5K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 68,106 | $149.0K | 0.00% | +68,106 | New |
| Royal Bank of Canada | 71,768 | $157.0K | 0.00% | +23,041+47.3% | Added |
| State Street Corp | 82,908 | $181.6K | 0.00% | 00.0% | Unchanged |
| Tang Capital Management LLC | 123,430 | $270.3K | 0.04% | −990,023−88.9% | Reduced |
| Marshall Wace, LLP | 140,296 | $307.2K | 0.00% | −35,614−20.2% | Reduced |
| Two Sigma Advisers, LP | 156,150 | $342.0K | 0.00% | −27,000−14.7% | Reduced |
| Two Sigma Investments, LP | 162,538 | $356.0K | 0.00% | −17,476−9.7% | Reduced |
| Renaissance Technologies LLC | 166,076 | $364.0K | 0.00% | −21,449−11.4% | Reduced |
| Dimensional Fund Advisors LP | 197,692 | $433.0K | 0.00% | +28,332+16.7% | Added |
| Geode Capital Management, LLC | 242,239 | $530.0K | 0.00% | +2,743+1.1% | Added |
| BlackRock Inc. | 268,946 | $589.0K | 0.00% | +1,848+0.7% | Added |
| Citigroup Inc | 428,460 | $938.3K | 0.00% | +428,460 | New |
| Telemetry Investments, L.L.C. | 624,000 | $1.37M | 3.19% | +131,500+26.7% | Added |
| Walleye Capital LLC | 750,000 | $1.64M | 0.04% | +343,114+84.3% | Added |
| Vanguard Group Inc | 1,140,126 | $2.50M | 0.00% | +593+0.1% | Added |
| VR Adviser, LLC | 1,171,436 | $2.57M | 0.43% | −227,453−16.3% | Reduced |
| Tikvah Management LLC | 1,350,833 | $2.96M | 1.41% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 1,378,747 | $3.02M | 0.03% | +300,000+27.8% | Added |
| FMR LLC | 4,351,407 | $9.53M | 0.00% | +57,651+1.3% | Added |
| Federated Hermes, Inc. | 5,231,600 | $11.5M | 0.03% | +9,350+0.2% | Added |
| Stonepine Capital Management, LLC | 0 | $0 | 0.00% | −600,980−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −45,542−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −14,461−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −5,975−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −1,784−100.0% | Sold out |