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 2025
Institutional positions in aTYR PHARMA INC as of Sep 30, 2025. 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
- 103
- −5 vs. Q2 2025
- Shares held
- 61.9M
- −4.35M (−6.6%) vs. Q2 2025
- Total value
- $43.9M
- −$292.2M (−86.9%) vs. Q2 2025
- New holders
- 34
- 33 more added
- Sold out
- 39
- 25 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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 2025
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM, LLC | 19 | $0 | 0.00% | +19 | New |
| FNY Investment Advisers, LLC | 700 | $0 | 0.00% | +700 | New |
| Caldwell Sutter Capital, Inc. | 52 | $38 | 0.00% | 00.0% | Unchanged |
| Financial Consulate, Inc | 55 | $40 | 0.00% | +55 | New |
| Caitong International Asset Management Co., Ltd | 67 | $48 | 0.00% | −1,853−96.5% | Reduced |
| Advisory Services Network, LLC | 91 | $66 | 0.00% | +91 | New |
| Larson Financial Group LLC | 150 | $108 | 0.00% | +150 | New |
| Global Retirement Partners, LLC | 300 | $216 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 316 | $228 | 0.00% | +316 | New |
| MCF Advisors LLC | 400 | $289 | 0.00% | +400 | New |
| Quadrant Capital Group LLC | 462 | $334 | 0.00% | +462 | New |
| Newbridge Financial Services Group, Inc. | 500 | $361 | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 603 | $435 | 0.00% | +248+69.9% | Added |
| The PNC Financial Services Group, Inc. | 811 | $585 | 0.00% | +811 | New |
| Signaturefd, LLC | 1,809 | $1.30K | 0.00% | +1,809 | New |
| Farther Finance Advisors, LLC | 2,100 | $1.51K | 0.00% | −17,823−89.5% | Reduced |
| Amalgamated Bank | 2,971 | $2.00K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 3,102 | $2.23K | 0.00% | −57,194−94.9% | Reduced |
| California State Teachers Retirement System | 5,432 | $3.92K | 0.00% | +4+0.1% | Added |
| Citigroup Inc | 5,717 | $4.12K | 0.00% | −27,616−82.8% | Reduced |
| Russell Investments Group, Ltd. | 7,464 | $5.38K | 0.00% | +7,464 | New |
| Ameritas Investment Partners, Inc. | 8,881 | $6.41K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 9,570 | $6.90K | 0.00% | 00.0% | Unchanged |
| Belpointe Asset Management LLC | 10,438 | $7.53K | 0.00% | +10,438 | New |
| Prudential Financial Inc | 10,890 | $7.84K | 0.00% | −1,500−12.1% | Reduced |
| United Bank | 11,970 | $8.64K | 0.00% | −4,860−28.9% | Reduced |
| Gladstone Institutional Advisory LLC | 13,300 | $9.60K | 0.00% | +2,500+23.1% | Added |
| Atom Investors LP | 13,547 | $9.77K | 0.00% | −8,243−37.8% | Reduced |
| ProShare Advisors LLC | 14,873 | $10.7K | 0.00% | −2,964−16.6% | Reduced |
| Raymond James Financial Inc | 15,161 | $10.9K | 0.00% | −9,678−39.0% | Reduced |
| Royal Bank of Canada | 14,905 | $11.0K | 0.00% | −81,263−84.5% | Reduced |
| HSBC Holdings PLC | 16,139 | $11.8K | 0.00% | −8,445−34.4% | Reduced |
| Voya Investment Management LLC | 16,594 | $12.0K | 0.00% | −8,018−32.6% | Reduced |
| North Star Asset Management Inc | 16,800 | $12.1K | 0.00% | 00.0% | Unchanged |
| Blue Rock Wealth Management LLC | 17,000 | $12.3K | 0.01% | −3,000−15.0% | Reduced |
| Group One Trading, L.P. | 17,240 | $12.4K | 0.00% | −53,527−75.6% | Reduced |
| Hobbs Group Advisors, LLC | 18,653 | $13.5K | 0.00% | +18,653 | New |
| Apollon Wealth Management, LLC | 19,900 | $14.4K | 0.00% | −600−2.9% | Reduced |
| RBF Capital, LLC | 20,000 | $14.4K | 0.00% | +20,000 | New |
| BNP Paribas Arbitrage, SA | 20,695 | $14.9K | 0.00% | +1,145+5.9% | Added |
| SG Americas Securities, LLC | 21,463 | $15.0K | 0.00% | +21,463 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 20,994 | $15.1K | 0.00% | +20,994 | New |
| Leonteq Securities AG | 21,146 | $15.3K | 0.00% | +18,646+745.8% | Added |
| MAI Capital Management | 22,841 | $16.5K | 0.00% | −346,286−93.8% | Reduced |
| Courier Capital LLC | 25,000 | $18.0K | 0.00% | +25,000 | New |
| Police & Firemen's Retirement System of New Jersey | 26,081 | $18.8K | 0.00% | +6,225+31.4% | Added |
| New York State Common Retirement Fund | 27,500 | $19.8K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 28,118 | $20.3K | 0.00% | +28,118 | New |
| Intech Investment Management LLC | 31,774 | $22.9K | 0.00% | −12,894−28.9% | Reduced |
| SEI Investments Co | 33,829 | $24.4K | 0.00% | +33,829 | New |
| Tower Research Capital LLC (TRC) | 33,834 | $24.4K | 0.00% | +23,493+227.2% | Added |
| Profund Advisors LLC | 36,785 | $26.5K | 0.00% | +36,785 | New |
| DLD Asset Management, LP | 40,000 | $28.9K | 0.00% | +40,000 | New |
| Los Angeles Capital Management LLC | 45,830 | $33.1K | 0.00% | +45,830 | New |
| Invesco Ltd. | 45,859 | $33.1K | 0.00% | −552,149−92.3% | Reduced |
| Price T Rowe Associates Inc | 46,126 | $34.0K | 0.00% | +2,601+6.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 49,522 | $36.4K | 0.00% | +1,879+3.9% | Added |
| Wolverine Trading, LLC | 54,026 | $43.0K | 0.00% | +54,026 | New |
| Alliancebernstein L.P. | 64,480 | $46.5K | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 83,312 | $60.1K | 0.00% | +68,026+445.0% | Added |
| Woodline Partners LP | 102,687 | $74.1K | 0.00% | −1,578,908−93.9% | Reduced |
| JPMorgan Chase & Co | 105,817 | $76.3K | 0.00% | +64,710+157.4% | Added |
| Toronto Dominion Bank | 109,400 | $78.9K | 0.00% | +109,400 | New |
| Wells Fargo & Company | 111,059 | $80.1K | 0.00% | −166,329−60.0% | Reduced |
| Rhumbline Advisers | 122,407 | $88.2K | 0.00% | −1,751−1.4% | Reduced |
| Squarepoint Ops LLC | 124,924 | $90.1K | 0.00% | +124,924 | New |
| Susquehanna International Group, LLP | 126,672 | $91.4K | 0.00% | −127,346−50.1% | Reduced |
| Main Street Financial Solutions, LLC | 144,950 | $104.6K | 0.01% | +1,350+0.9% | Added |
| Graham Capital Management, L.P. | 147,851 | $106.7K | 0.00% | +147,851 | New |
| Rafferty Asset Management, LLC | 170,610 | $123.1K | 0.00% | +170,610 | New |
| ADAR1 Capital Management, LLC | 175,000 | $126.2K | 0.01% | +175,000 | New |
| Bank of America Corp | 177,671 | $128.1K | 0.00% | +135,325+319.6% | Added |
| Victory Capital Management Inc | 192,813 | $139.1K | 0.00% | +182,551+1,778.9% | Added |
| Bank of New York Mellon Corp | 199,798 | $144.1K | 0.00% | +13,904+7.5% | Added |
| Two Sigma Investments, LP | 211,000 | $152.2K | 0.00% | +179,672+573.5% | Added |
| Dimensional Fund Advisors LP | 214,546 | $155.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 227,785 | $164.3K | 0.00% | +191,362+525.4% | Added |
| Nuveen, LLC | 227,941 | $164.4K | 0.00% | +33,829+17.4% | Added |
| Brevan Howard Capital Management LP | 234,613 | $168.9K | 0.00% | +234,613 | New |
| Flputnam Investment Management Co | 235,255 | $169.7K | 0.00% | +193,697+466.1% | Added |
| Charles Schwab Investment Management Inc | 261,043 | $188.3K | 0.00% | +2,492+1.0% | Added |
| Wellington Management Group LLP | 289,231 | $208.7K | 0.00% | +74,303+34.6% | Added |
| XTX Topco Ltd | 312,410 | $225.4K | 0.01% | +312,410 | New |
| Barclays PLC | 341,359 | $246.3K | 0.00% | +44,773+15.1% | Added |
| Artia Global Partners LP | 372,276 | $268.6K | 0.05% | +372,276 | New |
| Ensign Peak Advisors, Inc | 414,732 | $299.2K | 0.00% | +179,057+76.0% | Added |
| State of Wisconsin Investment Board | 438,262 | $316.2K | 0.00% | +438,262 | New |
| Tikvah Management LLC | 460,833 | $332.4K | 0.10% | −2,000,000−81.3% | Reduced |
| Tang Capital Management LLC | 671,134 | $484.2K | 0.02% | 00.0% | Unchanged |
| Northern Trust Corp | 674,122 | $486.3K | 0.00% | −6,814−1.0% | Reduced |
| Goldman Sachs Group Inc | 688,165 | $496.4K | 0.00% | +651,890+1,797.1% | Added |
| Gsa Capital Partners LLP | 706,731 | $510.0K | 0.04% | +210,442+42.4% | Added |
| Morgan Stanley | 710,341 | $512.4K | 0.00% | +450,375+173.2% | Added |
| Millennium Management LLC | 1,890,921 | $1.36M | 0.00% | +290,721+18.2% | Added |
| Geode Capital Management, LLC | 2,178,203 | $1.57M | 0.00% | +80,127+3.8% | Added |
| State Street Corp | 4,196,166 | $3.03M | 0.00% | +2,956,503+238.5% | Added |
| UBS Group AG | 4,505,955 | $3.25M | 0.00% | +2,760,238+158.1% | Added |
| Vanguard Group Inc | 5,630,935 | $4.06M | 0.00% | +975,887+21.0% | Added |
| BlackRock, Inc. | 6,473,884 | $4.67M | 0.00% | +691,251+12.0% | Added |
| Federated Hermes, Inc. | 10,544,437 | $7.61M | 0.01% | −4,122,163−28.1% | Reduced |