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 2023
Institutional positions in aTYR PHARMA INC as of Dec 31, 2023. 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
- 46
- +5 vs. Q3 2023
- Shares held
- 41.2M
- +4.52M (+12.3%) vs. Q3 2023
- Total value
- $58.1M
- −$543.0K (−0.9%) vs. Q3 2023
- New holders
- 9
- 15 more added
- Sold out
- 4
- 10 more reduced
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 10,169,600 | $14.3M | 0.04% | 00.0% | Unchanged |
| FMR LLC | 8,784,009 | $12.4M | 0.00% | +227,084+2.7% | Added |
| Logos Global Management LP | 5,850,000 | $8.25M | 0.92% | +5,850,000 | New |
| Tikvah Management LLC | 2,460,833 | $3.47M | 1.19% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 2,455,555 | $3.46M | 0.02% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,368,454 | $3.34M | 0.00% | +84,848+3.7% | Added |
| Citadel Advisors LLC | 1,753,600 | $2.47M | 0.00% | −30,536−1.7% | Reduced |
| Checkpoint Capital L.P. | 1,503,554 | $2.12M | 1.48% | +1,503,554 | New |
| BlackRock Inc. | 1,362,360 | $1.92M | 0.00% | +4,857+0.4% | Added |
| Renaissance Technologies LLC | 877,972 | $1.24M | 0.00% | +371,979+73.5% | Added |
| Geode Capital Management, LLC | 586,997 | $827.8K | 0.00% | 00.0% | Unchanged |
| Stonepine Capital Management, LLC | 482,258 | $680.0K | 0.29% | −4,144,366−89.6% | Reduced |
| Tang Capital Management LLC | 471,134 | $664.3K | 0.06% | 00.0% | Unchanged |
| Pale Fire Capital SE | 293,706 | $414.1K | 0.06% | +237,849+425.8% | Added |
| State Street Corp | 166,808 | $235.2K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 148,759 | $209.8K | 0.00% | +148,643+128,140.5% | Added |
| Two Sigma Advisers, LP | 147,750 | $208.3K | 0.00% | −41,500−21.9% | Reduced |
| Goldman Sachs Group Inc | 143,570 | $202.4K | 0.00% | +143,570 | New |
| Dimensional Fund Advisors LP | 142,248 | $200.6K | 0.00% | −94,201−39.8% | Reduced |
| Millennium Management LLC | 125,226 | $176.6K | 0.00% | +40,912+48.5% | Added |
| Squarepoint Ops LLC | 119,450 | $168.4K | 0.00% | −20,540−14.7% | Reduced |
| Gsa Capital Partners LLP | 109,164 | $154.0K | 0.01% | +81,605+296.1% | Added |
| Northern Trust Corp | 100,102 | $141.1K | 0.00% | +21,583+27.5% | Added |
| Royal Bank of Canada | 91,291 | $128.0K | 0.00% | +10,318+12.7% | Added |
| Barclays PLC | 78,972 | $111.4K | 0.00% | +78,972 | New |
| Citigroup Inc | 78,620 | $110.9K | 0.00% | +78,620 | New |
| XTX Topco Ltd | 68,568 | $96.7K | 0.02% | −5,326−7.2% | Reduced |
| Farther Finance Advisors, LLC | 30,323 | $42.8K | 0.00% | +30,323 | New |
| Charles Schwab Investment Management Inc | 26,689 | $37.6K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 26,538 | $37.4K | 0.00% | −65,794−71.3% | Reduced |
| Virtu Financial LLC | 26,409 | $37.0K | 0.00% | +12,747+93.3% | Added |
| American Century Companies Inc | 22,080 | $31.1K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 20,662 | $29.0K | 0.00% | +20,662 | New |
| Cubist Systematic Strategies, LLC | 17,586 | $24.8K | 0.00% | +5,625+47.0% | Added |
| Bank of New York Mellon Corp | 16,426 | $23.2K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 16,426 | $23.2K | 0.00% | +12,027+273.4% | Added |
| Morgan Stanley | 15,923 | $22.5K | 0.00% | +13,519+562.4% | Added |
| Granite Bay Wealth Management, LLC | 18,000 | $22.0K | 0.00% | +18,000 | New |
| Prudential Financial Inc | 15,200 | $21.4K | 0.00% | +15,200 | New |
| D.A. Davidson & Co. | 12,750 | $18.0K | 0.00% | −10,000−44.0% | Reduced |
| JPMorgan Chase & Co | 11,867 | $16.7K | 0.00% | −37,775−76.1% | Reduced |
| Alterna Wealth Management, Inc | 10,000 | $14.1K | 0.02% | 00.0% | Unchanged |
| Wells Fargo & Company | 1,905 | $2.69K | 0.00% | +30+1.6% | Added |
| PFS Partners, LLC | 340 | $480 | 0.00% | −60−15.0% | Reduced |
| Qube Research & Technologies Ltd | 188 | $265 | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 52 | $73 | 0.00% | 00.0% | Unchanged |
| Man Group plc | 0 | $0 | 0.00% | – | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −36,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −9,032−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −682−100.0% | Sold out |