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