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 |
|---|---|---|---|---|---|
| Morgan Stanley | 72 | $0 | 0.00% | −20,393−99.6% | Reduced |
| Cutler Group LP | 85 | $0 | 0.00% | −2,758−97.0% | Reduced |
| Charter Oak Capital Management, LLC | 150 | $1.00K | 0.00% | 00.0% | Unchanged |
| RE Dickinson Investment Advisors, LLC | 300 | $2.00K | 0.00% | 00.0% | Unchanged |
| PFS Partners, LLC | 406 | $2.17K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 650 | $3.00K | 0.00% | +650 | New |
| Raleigh Capital Management Inc. | 600 | $3.00K | 0.00% | +600 | New |
| Tower Research Capital LLC (TRC) | 1,023 | $5.00K | 0.00% | +998+3,992.0% | Added |
| Royal Bank of Canada | 1,334 | $7.00K | 0.00% | +834+166.8% | Added |
| Wells Fargo & Company | 1,659 | $9.00K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 4,000 | $21.0K | 0.00% | +2,868+253.4% | Added |
| 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 |
| Virtu Financial LLC | 13,126 | $70.0K | 0.01% | +13,126 | New |
| ExodusPoint Capital Management, LP | 13,456 | $72.0K | 0.00% | +13,456 | New |
| Ameriprise Financial Inc | 15,700 | $84.0K | 0.00% | −1,000−6.0% | Reduced |
| D. E. Shaw & Co., Inc. | 18,808 | $101.0K | 0.00% | +18,808 | New |
| Wolverine Trading, LLC | 22,089 | $120.0K | 0.00% | +22,089 | New |
| Ikarian Capital, LLC | 37,017 | $197.0K | 0.06% | +1,969+5.6% | Added |
| Ensign Peak Advisors, Inc | 37,884 | $203.0K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 44,406 | $238.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 82,908 | $444.0K | 0.00% | +26,909+48.1% | Added |
| Renaissance Technologies LLC | 110,855 | $593.0K | 0.00% | −16,300−12.8% | Reduced |
| Citadel Advisors LLC | 159,921 | $855.0K | 0.00% | −33,573−17.4% | Reduced |
| Two Sigma Advisers, LP | 197,550 | $1.06M | 0.00% | −189,802−49.0% | Reduced |
| Dimensional Fund Advisors LP | 202,284 | $1.08M | 0.00% | −24,428−10.8% | Reduced |
| Marshall Wace, LLP | 203,007 | $1.09M | 0.00% | −47,389−18.9% | Reduced |
| Geode Capital Management, LLC | 234,322 | $1.25M | 0.00% | +2,823+1.2% | Added |
| Two Sigma Investments, LP | 235,237 | $1.26M | 0.00% | −251,756−51.7% | Reduced |
| BlackRock Inc. | 276,159 | $1.48M | 0.00% | +780+0.3% | Added |
| Telemetry Investments, L.L.C. | 282,420 | $1.51M | 2.42% | +105,638+59.8% | Added |
| Stonepine Capital Management, LLC | 601,580 | $3.22M | 1.33% | +76,049+14.5% | Added |
| Baker Bros. Advisors LP | 625,000 | $3.34M | 0.02% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 760,798 | $4.07M | 0.04% | +85,823+12.7% | Added |
| Deep Track Capital, LP | 1,028,515 | $5.50M | 0.36% | −71,485−6.5% | Reduced |
| Tang Capital Management LLC | 1,113,453 | $5.96M | 1.21% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,139,533 | $6.10M | 0.00% | +26,342+2.4% | Added |
| Tikvah Management LLC | 1,350,833 | $7.23M | 2.31% | +125,000+10.2% | Added |
| VR Adviser, LLC | 1,398,889 | $7.48M | 1.21% | −166,111−10.6% | Reduced |
| FMR LLC | 4,169,369 | $22.3M | 0.00% | +7680.0% | Added |
| Federated Hermes, Inc. | 5,222,250 | $27.9M | 0.06% | 00.0% | Unchanged |
| 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 |