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, Q2 2023
Institutional positions in aTYR PHARMA INC as of Jun 30, 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
- 41
- +4 vs. Q1 2023
- Shares held
- 35.7M
- +1.00M (+2.9%) vs. Q1 2023
- Total value
- $77.0M
- +$4.25M (+5.8%) vs. Q1 2023
- New holders
- 12
- 18 more added
- Sold out
- 8
- 7 more reduced
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 10,189,966 | $22.0M | 0.05% | 00.0% | Unchanged |
| FMR LLC | 8,143,763 | $17.6M | 0.00% | +169,456+2.1% | Added |
| Stonepine Capital Management, LLC | 4,627,224 | $9.99M | 3.61% | −198,498−4.1% | Reduced |
| Tikvah Management LLC | 2,460,833 | $5.32M | 1.81% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,300,714 | $4.97M | 0.00% | +206,457+9.9% | Added |
| Alyeska Investment Group, L.P. | 2,205,555 | $4.76M | 0.04% | −267,599−10.8% | Reduced |
| BlackRock Inc. | 1,370,159 | $2.96M | 0.00% | +1,040,982+316.2% | Added |
| Geode Capital Management, LLC | 593,474 | $1.28M | 0.00% | +14,572+2.5% | Added |
| Renaissance Technologies LLC | 526,355 | $1.14M | 0.00% | +368,700+233.9% | Added |
| Two Sigma Investments, LP | 420,590 | $908.5K | 0.00% | +294,974+234.8% | Added |
| Two Sigma Advisers, LP | 378,850 | $818.3K | 0.00% | +225,400+146.9% | Added |
| Millennium Management LLC | 352,104 | $760.5K | 0.00% | +352,104 | New |
| Citadel Advisors LLC | 320,090 | $691.4K | 0.00% | +279,161+682.1% | Added |
| Man Group plc | 306,950 | $663.0K | 0.00% | +306,950 | New |
| Dimensional Fund Advisors LP | 277,804 | $600.1K | 0.00% | +130,031+88.0% | Added |
| XTX Topco Ltd | 170,425 | $368.1K | 0.07% | +170,425 | New |
| State Street Corp | 166,808 | $360.3K | 0.00% | +83,900+101.2% | Added |
| Squarepoint Ops LLC | 159,359 | $344.2K | 0.00% | +147,185+1,209.0% | Added |
| Tang Capital Management LLC | 150,000 | $324.0K | 0.05% | +26,570+21.5% | Added |
| Northern Trust Corp | 115,929 | $250.4K | 0.00% | +45,324+64.2% | Added |
| Royal Bank of Canada | 84,429 | $182.0K | 0.00% | +7,356+9.5% | Added |
| JPMorgan Chase & Co | 59,299 | $128.1K | 0.00% | −75,569−56.0% | Reduced |
| Occudo Quantitative Strategies LP | 54,892 | $118.6K | 0.01% | +42,970+360.4% | Added |
| Susquehanna International Group, LLP | 46,634 | $100.7K | 0.00% | +46,634 | New |
| Boothbay Fund Management, LLC | 36,000 | $77.8K | 0.00% | −44,000−55.0% | Reduced |
| Vontobel Holding Ltd. | 30,000 | $64.8K | 0.00% | +30,000 | New |
| Charles Schwab Investment Management Inc | 26,689 | $57.6K | 0.00% | 00.0% | Unchanged |
| D.A. Davidson & Co. | 22,750 | $49.1K | 0.00% | +10,750+89.6% | Added |
| Bank of New York Mellon Corp | 16,426 | $35.5K | 0.00% | −19,442−54.2% | Reduced |
| American Century Companies Inc | 14,191 | $30.7K | 0.00% | +14,191 | New |
| Two Sigma Securities, LLC | 12,001 | $25.9K | 0.00% | +12,001 | New |
| Schonfeld Strategic Advisors LLC | 11,100 | $24.0K | 0.00% | +11,100 | New |
| Alterna Wealth Management, Inc | 10,000 | $21.6K | 0.03% | +10,000 | New |
| Morgan Stanley | 2,455 | $5.30K | 0.00% | +171+7.5% | Added |
| Wells Fargo & Company | 1,891 | $4.08K | 0.00% | +37+2.0% | Added |
| Bank of America Corp | 1,483 | $3.20K | 0.00% | +1,483 | New |
| Clearview Wealth Advisors LLC | 500 | $1.08K | 0.00% | 00.0% | Unchanged |
| PFS Partners, LLC | 400 | $864 | 0.00% | −6−1.5% | Reduced |
| Tower Research Capital LLC (TRC) | 211 | $456 | 0.00% | −1,070−83.5% | Reduced |
| ICA Group Wealth Management, LLC | 75 | $162 | 0.00% | +75 | New |
| Caldwell Sutter Capital, Inc. | 52 | $112 | 0.00% | +52 | New |
| Samsara BioCapital, LLC | 0 | $0 | 0.00% | −1,750,000−100.0% | Sold out |
| CVI Holdings, LLC | 0 | $0 | 0.00% | −588,571−100.0% | Sold out |
| Salem Investment Counselors Inc | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Ensign Peak Advisors, Inc | 0 | $0 | 0.00% | −37,884−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −10,947−100.0% | Sold out |
| Tocqueville Asset Management L.P. | 0 | $0 | 0.00% | −10,150−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −13−100.0% | Sold out |