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