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 |
|---|---|---|---|---|---|
| Morgan Stanley | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Strategic Investment Solutions, Inc. | 8 | $14 | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 52 | $92 | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 150 | $264 | 0.00% | 00.0% | Unchanged |
| PFS Partners, LLC | 340 | $599 | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 358 | $630 | 0.00% | +358 | New |
| Continuum Advisory, LLC | 210 | $670 | 0.00% | +210 | New |
| Simplex Trading, LLC | 790 | $1.00K | 0.00% | −1,074−57.6% | Reduced |
| Bank of America Corp | 620 | $1.09K | 0.00% | −116,417−99.5% | Reduced |
| Wells Fargo & Company | 2,500 | $4.40K | 0.00% | +1,000+66.7% | Added |
| Alterna Wealth Management, Inc | 10,000 | $17.6K | 0.02% | 00.0% | Unchanged |
| Ground Swell Capital, LLC | 12,728 | $22.4K | 0.03% | +12,728 | New |
| Two Sigma Securities, LLC | 12,992 | $22.9K | 0.00% | +12,992 | New |
| Squarepoint Ops LLC | 13,381 | $23.6K | 0.00% | +13,381 | New |
| Tower Research Capital LLC (TRC) | 13,540 | $23.8K | 0.00% | −13,798−50.5% | Reduced |
| Marshall Wace, LLP | 14,031 | $24.7K | 0.00% | +14,031 | New |
| Engineers Gate Manager LP | 15,646 | $27.5K | 0.00% | +15,646 | New |
| StoneX Group Inc. | 15,709 | $27.6K | 0.00% | +15,709 | New |
| XTX Topco Ltd | 17,262 | $30.4K | 0.00% | +17,262 | New |
| Occudo Quantitative Strategies LP | 20,826 | $36.7K | 0.01% | +20,826 | New |
| Jane Street Group, LLC | 23,754 | $41.8K | 0.00% | −4,702−16.5% | Reduced |
| Charles Schwab Investment Management Inc | 26,689 | $47.0K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 29,017 | $51.0K | 0.00% | +1,051+3.8% | Added |
| D.A. Davidson & Co. | 29,000 | $51.0K | 0.00% | +1,150+4.1% | Added |
| JPMorgan Chase & Co | 31,440 | $55.3K | 0.00% | +10,754+52.0% | Added |
| Farther Finance Advisors, LLC | 33,423 | $58.8K | 0.00% | +3,000+9.9% | Added |
| Jefferies Financial Group Inc. | 55,600 | $97.9K | 0.00% | +55,600 | New |
| American Century Companies Inc | 61,596 | $108.4K | 0.00% | +1,109+1.8% | Added |
| Main Street Financial Solutions, LLC | 66,475 | $117.0K | 0.01% | −1,250−1.8% | Reduced |
| Two Sigma Advisers, LP | 78,350 | $137.9K | 0.00% | −17,500−18.3% | Reduced |
| Knott David M Jr | 107,174 | $189.0K | 0.08% | +107,174 | New |
| Millennium Management LLC | 108,656 | $191.2K | 0.00% | +2,224+2.1% | Added |
| Royal Bank of Canada | 118,998 | $209.0K | 0.00% | +105,148+759.2% | Added |
| Northern Trust Corp | 130,814 | $230.2K | 0.00% | +12,358+10.4% | Added |
| Citigroup Inc | 132,983 | $234.1K | 0.00% | +132,983 | New |
| Susquehanna International Group, LLP | 133,229 | $234.5K | 0.00% | +133,229 | New |
| Qube Research & Technologies Ltd | 139,155 | $244.9K | 0.00% | +138,967+73,918.6% | Added |
| Dimensional Fund Advisors LP | 145,524 | $256.1K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 168,308 | $296.2K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 286,600 | $504.0K | 0.04% | −35,860−11.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 386,584 | $680.4K | 0.01% | +347,684+893.8% | Added |
| Tang Capital Management LLC | 671,134 | $1.18M | 0.08% | 00.0% | Unchanged |
| Ghost Tree Capital, LLC | 800,000 | $1.41M | 0.48% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 809,101 | $1.42M | 0.00% | +146,417+22.1% | Added |
| Citadel Advisors LLC | 966,607 | $1.70M | 0.00% | −878,655−47.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,000,000 | $1.76M | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 1,149,175 | $2.02M | 0.00% | −144,639−11.2% | Reduced |
| BlackRock, Inc. | 1,396,562 | $2.46M | 0.00% | +1,396,562 | New |
| Woodline Partners LP | 1,683,549 | $2.96M | 0.03% | +3870.0% | Added |
| Alyeska Investment Group, L.P. | 1,728,538 | $3.04M | 0.02% | −139,095−7.4% | Reduced |
| Checkpoint Capital L.P. | 1,736,477 | $3.06M | 1.52% | −210,000−10.8% | Reduced |
| Logos Global Management LP | 2,000,000 | $3.52M | 0.39% | −1,000,000−33.3% | Reduced |
| Tikvah Management LLC | 2,460,833 | $4.33M | 1.34% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,987,578 | $5.26M | 0.00% | +335,421+12.6% | Added |
| FMR LLC | 11,369,429 | $20.0M | 0.00% | +1,017,788+9.8% | Added |
| Federated Hermes, Inc. | 14,666,600 | $25.8M | 0.06% | 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 |