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, Q1 2022
Institutional positions in aTYR PHARMA INC as of Mar 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
- 41
- −6 vs. Q4 2021
- Shares held
- 19.6M
- −927.1K (−4.5%) vs. Q4 2021
- Total value
- $105.0M
- −$48.5M (−31.6%) vs. Q4 2021
- New holders
- 6
- 13 more added
- Sold out
- 12
- 12 more reduced
Compare with Q4 2021: 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, Q1 2022
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 5,222,250 | $27.9M | 0.06% | 00.0% | Unchanged |
| FMR LLC | 4,169,369 | $22.3M | 0.00% | +7680.0% | Added |
| VR Adviser, LLC | 1,398,889 | $7.48M | 1.21% | −166,111−10.6% | Reduced |
| Tikvah Management LLC | 1,350,833 | $7.23M | 2.31% | +125,000+10.2% | Added |
| Vanguard Group Inc | 1,139,533 | $6.10M | 0.00% | +26,342+2.4% | Added |
| Tang Capital Management LLC | 1,113,453 | $5.96M | 1.21% | 00.0% | Unchanged |
| Deep Track Capital, LP | 1,028,515 | $5.50M | 0.36% | −71,485−6.5% | Reduced |
| Alyeska Investment Group, L.P. | 760,798 | $4.07M | 0.04% | +85,823+12.7% | Added |
| Baker Bros. Advisors LP | 625,000 | $3.34M | 0.02% | 00.0% | Unchanged |
| Stonepine Capital Management, LLC | 601,580 | $3.22M | 1.33% | +76,049+14.5% | Added |
| Telemetry Investments, L.L.C. | 282,420 | $1.51M | 2.42% | +105,638+59.8% | Added |
| BlackRock Inc. | 276,159 | $1.48M | 0.00% | +780+0.3% | Added |
| Two Sigma Investments, LP | 235,237 | $1.26M | 0.00% | −251,756−51.7% | Reduced |
| Geode Capital Management, LLC | 234,322 | $1.25M | 0.00% | +2,823+1.2% | Added |
| Marshall Wace, LLP | 203,007 | $1.09M | 0.00% | −47,389−18.9% | Reduced |
| Dimensional Fund Advisors LP | 202,284 | $1.08M | 0.00% | −24,428−10.8% | Reduced |
| Two Sigma Advisers, LP | 197,550 | $1.06M | 0.00% | −189,802−49.0% | Reduced |
| Citadel Advisors LLC | 159,921 | $855.0K | 0.00% | −33,573−17.4% | Reduced |
| Renaissance Technologies LLC | 110,855 | $593.0K | 0.00% | −16,300−12.8% | Reduced |
| State Street Corp | 82,908 | $444.0K | 0.00% | +26,909+48.1% | Added |
| Northern Trust Corp | 44,406 | $238.0K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 37,884 | $203.0K | 0.00% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 37,017 | $197.0K | 0.06% | +1,969+5.6% | Added |
| Wolverine Trading, LLC | 22,089 | $120.0K | 0.00% | +22,089 | New |
| D. E. Shaw & Co., Inc. | 18,808 | $101.0K | 0.00% | +18,808 | New |
| Ameriprise Financial Inc | 15,700 | $84.0K | 0.00% | −1,000−6.0% | Reduced |
| ExodusPoint Capital Management, LP | 13,456 | $72.0K | 0.00% | +13,456 | New |
| Virtu Financial LLC | 13,126 | $70.0K | 0.01% | +13,126 | New |
| Tocqueville Asset Management L.P. | 10,150 | $54.0K | 0.00% | −2,000−16.5% | Reduced |
| Charles Schwab Investment Management Inc | 10,000 | $54.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 4,000 | $21.0K | 0.00% | +2,868+253.4% | Added |
| Wells Fargo & Company | 1,659 | $9.00K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,334 | $7.00K | 0.00% | +834+166.8% | Added |
| Tower Research Capital LLC (TRC) | 1,023 | $5.00K | 0.00% | +998+3,992.0% | Added |
| Citigroup Inc | 650 | $3.00K | 0.00% | +650 | New |
| Raleigh Capital Management Inc. | 600 | $3.00K | 0.00% | +600 | New |
| PFS Partners, LLC | 406 | $2.17K | 0.00% | 00.0% | Unchanged |
| RE Dickinson Investment Advisors, LLC | 300 | $2.00K | 0.00% | 00.0% | Unchanged |
| Charter Oak Capital Management, LLC | 150 | $1.00K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 72 | $0 | 0.00% | −20,393−99.6% | Reduced |
| Cutler Group LP | 85 | $0 | 0.00% | −2,758−97.0% | Reduced |
| EAM Investors, LLC | 0 | $0 | 0.00% | −252,280−100.0% | Sold out |
| EAM Global Investors LLC | 0 | $0 | 0.00% | −152,792−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −58,791−100.0% | Sold out |
| Raymond James & Associates | 0 | $0 | 0.00% | −24,584−100.0% | Sold out |
| Nan Fung Group Holdings Ltd | 0 | $0 | 0.00% | −23,500−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −19,656−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −18,512−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −18,106−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −16,900−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −16,100−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −12,729−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −11,665−100.0% | Sold out |