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, Q3 2024
Institutional positions in aTYR PHARMA INC as of Sep 30, 2024. 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
- 56
- +10 vs. Q2 2024
- Shares held
- 47.9M
- +1.14M (+2.4%) vs. Q2 2024
- Total value
- $84.3M
- +$11.3M (+15.6%) vs. Q2 2024
- New holders
- 15
- 15 more added
- Sold out
- 5
- 12 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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, Q3 2024
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 14,666,600 | $25.8M | 0.06% | 00.0% | Unchanged |
| FMR LLC | 11,369,429 | $20.0M | 0.00% | +1,017,788+9.8% | Added |
| Vanguard Group Inc | 2,987,578 | $5.26M | 0.00% | +335,421+12.6% | Added |
| Tikvah Management LLC | 2,460,833 | $4.33M | 1.34% | 00.0% | Unchanged |
| Logos Global Management LP | 2,000,000 | $3.52M | 0.39% | −1,000,000−33.3% | Reduced |
| Checkpoint Capital L.P. | 1,736,477 | $3.06M | 1.52% | −210,000−10.8% | Reduced |
| Alyeska Investment Group, L.P. | 1,728,538 | $3.04M | 0.02% | −139,095−7.4% | Reduced |
| Woodline Partners LP | 1,683,549 | $2.96M | 0.03% | +3870.0% | Added |
| BlackRock, Inc. | 1,396,562 | $2.46M | 0.00% | +1,396,562 | New |
| Renaissance Technologies LLC | 1,149,175 | $2.02M | 0.00% | −144,639−11.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,000,000 | $1.76M | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 966,607 | $1.70M | 0.00% | −878,655−47.6% | Reduced |
| Geode Capital Management, LLC | 809,101 | $1.42M | 0.00% | +146,417+22.1% | Added |
| Ghost Tree Capital, LLC | 800,000 | $1.41M | 0.48% | 00.0% | Unchanged |
| Tang Capital Management LLC | 671,134 | $1.18M | 0.08% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 386,584 | $680.4K | 0.01% | +347,684+893.8% | Added |
| Gsa Capital Partners LLP | 286,600 | $504.0K | 0.04% | −35,860−11.1% | Reduced |
| State Street Corp | 168,308 | $296.2K | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 145,524 | $256.1K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 139,155 | $244.9K | 0.00% | +138,967+73,918.6% | Added |
| Susquehanna International Group, LLP | 133,229 | $234.5K | 0.00% | +133,229 | New |
| Citigroup Inc | 132,983 | $234.1K | 0.00% | +132,983 | New |
| Northern Trust Corp | 130,814 | $230.2K | 0.00% | +12,358+10.4% | Added |
| Royal Bank of Canada | 118,998 | $209.0K | 0.00% | +105,148+759.2% | Added |
| Millennium Management LLC | 108,656 | $191.2K | 0.00% | +2,224+2.1% | Added |
| Knott David M Jr | 107,174 | $189.0K | 0.08% | +107,174 | New |
| Two Sigma Advisers, LP | 78,350 | $137.9K | 0.00% | −17,500−18.3% | Reduced |
| Main Street Financial Solutions, LLC | 66,475 | $117.0K | 0.01% | −1,250−1.8% | Reduced |
| American Century Companies Inc | 61,596 | $108.4K | 0.00% | +1,109+1.8% | Added |
| Jefferies Financial Group Inc. | 55,600 | $97.9K | 0.00% | +55,600 | New |
| Farther Finance Advisors, LLC | 33,423 | $58.8K | 0.00% | +3,000+9.9% | Added |
| JPMorgan Chase & Co | 31,440 | $55.3K | 0.00% | +10,754+52.0% | Added |
| D.A. Davidson & Co. | 29,000 | $51.0K | 0.00% | +1,150+4.1% | Added |
| Virtu Financial LLC | 29,017 | $51.0K | 0.00% | +1,051+3.8% | Added |
| Charles Schwab Investment Management Inc | 26,689 | $47.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 23,754 | $41.8K | 0.00% | −4,702−16.5% | Reduced |
| Occudo Quantitative Strategies LP | 20,826 | $36.7K | 0.01% | +20,826 | New |
| XTX Topco Ltd | 17,262 | $30.4K | 0.00% | +17,262 | New |
| StoneX Group Inc. | 15,709 | $27.6K | 0.00% | +15,709 | New |
| Engineers Gate Manager LP | 15,646 | $27.5K | 0.00% | +15,646 | New |
| Marshall Wace, LLP | 14,031 | $24.7K | 0.00% | +14,031 | New |
| Tower Research Capital LLC (TRC) | 13,540 | $23.8K | 0.00% | −13,798−50.5% | Reduced |
| Squarepoint Ops LLC | 13,381 | $23.6K | 0.00% | +13,381 | New |
| Two Sigma Securities, LLC | 12,992 | $22.9K | 0.00% | +12,992 | New |
| Ground Swell Capital, LLC | 12,728 | $22.4K | 0.03% | +12,728 | New |
| Alterna Wealth Management, Inc | 10,000 | $17.6K | 0.02% | 00.0% | Unchanged |
| Wells Fargo & Company | 2,500 | $4.40K | 0.00% | +1,000+66.7% | Added |
| Bank of America Corp | 620 | $1.09K | 0.00% | −116,417−99.5% | Reduced |
| Simplex Trading, LLC | 790 | $1.00K | 0.00% | −1,074−57.6% | Reduced |
| Continuum Advisory, LLC | 210 | $670 | 0.00% | +210 | New |
| National Bank of Canada | 358 | $630 | 0.00% | +358 | New |
| PFS Partners, LLC | 340 | $599 | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 150 | $264 | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 52 | $92 | 0.00% | 00.0% | Unchanged |
| Strategic Investment Solutions, Inc. | 8 | $14 | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Superstring Capital Management LP | 0 | $0 | 0.00% | −313,028−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −29,207−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −16,485−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −12,675−100.0% | Sold out |
| Cypress Capital, LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |