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 2025
Institutional positions in aTYR PHARMA INC as of Jun 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
- 110
- +23 vs. Q1 2025
- Shares held
- 66.4M
- +4.60M (+7.5%) vs. Q1 2025
- Total value
- $336.5M
- +$149.9M (+80.4%) vs. Q1 2025
- New holders
- 52
- 25 more added
- Sold out
- 29
- 24 more reduced
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 14,666,600 | $74.4M | 0.14% | 00.0% | Unchanged |
| FMR LLC | 13,350,665 | $67.7M | 0.00% | +457,136+3.5% | Added |
| BlackRock, Inc. | 5,782,633 | $29.3M | 0.00% | +4,188,652+262.8% | Added |
| Vanguard Group Inc | 4,655,048 | $23.6M | 0.00% | +648,313+16.2% | Added |
| Octagon Capital Advisors LP | 3,820,000 | $19.4M | 4.25% | +268,000+7.5% | Added |
| Tikvah Management LLC | 2,460,833 | $12.5M | 4.12% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 2,098,076 | $10.6M | 0.00% | +1,170,276+126.1% | Added |
| UBS Group AG | 1,745,717 | $8.85M | 0.00% | +108,531+6.6% | Added |
| Woodline Partners LP | 1,681,595 | $8.53M | 0.05% | 00.0% | Unchanged |
| Millennium Management LLC | 1,600,200 | $8.11M | 0.01% | +1,159+0.1% | Added |
| Alyeska Investment Group, L.P. | 1,412,749 | $7.16M | 0.03% | +134,852+10.6% | Added |
| State Street Corp | 1,239,663 | $6.29M | 0.00% | +872,353+237.5% | Added |
| Integral Health Asset Management, LLC | 1,050,000 | $5.32M | 0.50% | +350,000+50.0% | Added |
| Point72 Asset Management, L.P. | 988,677 | $5.01M | 0.01% | −1,855,422−65.2% | Reduced |
| Northern Trust Corp | 680,936 | $3.45M | 0.00% | +494,319+264.9% | Added |
| Tang Capital Management LLC | 671,134 | $3.40M | 0.17% | 00.0% | Unchanged |
| Erste Asset Management GmbH | 600,000 | $3.04M | 0.03% | 00.0% | Unchanged |
| Invesco Ltd. | 598,008 | $3.03M | 0.00% | +598,008 | New |
| Renaissance Technologies LLC | 518,355 | $2.63M | 0.00% | +38,400+8.0% | Added |
| Marshall Wace, LLP | 511,412 | $2.59M | 0.00% | −327,040−39.0% | Reduced |
| Gsa Capital Partners LLP | 496,289 | $2.52M | 0.18% | +163,965+49.3% | Added |
| MAI Capital Management | 369,127 | $1.87M | 0.01% | −289,203−43.9% | Reduced |
| Barclays PLC | 296,586 | $1.50M | 0.00% | +59,495+25.1% | Added |
| Ally Bridge Group (NY) LLC | 287,720 | $1.46M | 1.21% | −489,300−63.0% | Reduced |
| Wells Fargo & Company | 277,388 | $1.41M | 0.00% | +109,169+64.9% | Added |
| Morgan Stanley | 259,966 | $1.32M | 0.00% | −2,713−1.0% | Reduced |
| Charles Schwab Investment Management Inc | 258,551 | $1.31M | 0.00% | +218,640+547.8% | Added |
| Susquehanna International Group, LLP | 254,018 | $1.29M | 0.00% | −1,479,063−85.3% | Reduced |
| Ensign Peak Advisors, Inc | 235,675 | $1.19M | 0.00% | +235,675 | New |
| Wellington Management Group LLP | 214,928 | $1.09M | 0.00% | +46,186+27.4% | Added |
| Dimensional Fund Advisors LP | 214,546 | $1.09M | 0.00% | −13,548−5.9% | Reduced |
| Thoroughbred Financial Services, LLC | 210,775 | $1.07M | 0.07% | +210,775 | New |
| Nuveen, LLC | 194,112 | $984.1K | 0.00% | +194,112 | New |
| Bank of New York Mellon Corp | 185,894 | $942.5K | 0.00% | +185,894 | New |
| Dauntless Investment Group, LLC | 158,402 | $803.1K | 3.77% | −12,287−7.2% | Reduced |
| Parkman Healthcare Partners LLC | 150,000 | $760.5K | 0.09% | +150,000 | New |
| Main Street Financial Solutions, LLC | 143,600 | $728.1K | 0.05% | +9,350+7.0% | Added |
| Rhumbline Advisers | 124,158 | $629.5K | 0.00% | +124,158 | New |
| Citadel Advisors LLC | 119,117 | $603.9K | 0.00% | −141,890−54.4% | Reduced |
| Royal Bank of Canada | 96,168 | $487.0K | 0.00% | +71,463+289.3% | Added |
| Fred Alger Management, LLC | 92,493 | $468.9K | 0.00% | +92,493 | New |
| Schonfeld Strategic Advisors LLC | 77,264 | $391.7K | 0.00% | −25,442−24.8% | Reduced |
| Group One Trading, L.P. | 70,767 | $358.8K | 0.01% | −18,904−21.1% | Reduced |
| Alliancebernstein L.P. | 64,480 | $326.9K | 0.00% | +12,563+24.2% | Added |
| Deutsche Bank AG | 60,296 | $305.7K | 0.00% | +60,296 | New |
| Avantax Advisory Services, Inc. | 57,669 | $292.4K | 0.00% | +57,669 | New |
| Quadrature Capital Ltd | 56,022 | $282.9K | 0.00% | +56,022 | New |
| Knott David M Jr | 50,367 | $255.4K | 0.12% | −173,040−77.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 47,643 | $241.6K | 0.00% | +47,643 | New |
| Intech Investment Management LLC | 44,668 | $226.5K | 0.00% | +44,668 | New |
| Price T Rowe Associates Inc | 43,525 | $221.0K | 0.00% | +43,525 | New |
| Bank of America Corp | 42,346 | $214.7K | 0.00% | −245,965−85.3% | Reduced |
| Flputnam Investment Management Co | 41,558 | $210.7K | 0.00% | +41,558 | New |
| JPMorgan Chase & Co | 41,107 | $208.4K | 0.00% | +41,107 | New |
| Polar Asset Management Partners Inc. | 40,500 | $205.3K | 0.01% | +40,500 | New |
| Diametric Capital, LP | 37,012 | $187.7K | 0.10% | +37,012 | New |
| Jane Street Group, LLC | 36,423 | $184.7K | 0.00% | −138,084−79.1% | Reduced |
| Goldman Sachs Group Inc | 36,275 | $183.9K | 0.00% | −346,042−90.5% | Reduced |
| Kingswood Wealth Advisors, LLC | 36,000 | $182.5K | 0.01% | −1,000−2.7% | Reduced |
| Citigroup Inc | 33,333 | $169.0K | 0.00% | +33,332+3,333,200.0% | Added |
| Manufacturers Life Insurance Company, The | 32,477 | $164.7K | 0.00% | +32,477 | New |
| Virtu Financial LLC | 31,959 | $162.0K | 0.01% | +31,959 | New |
| Omers Administration Corp | 31,800 | $161.2K | 0.00% | −116,300−78.5% | Reduced |
| D.A. Davidson & Co. | 31,650 | $160.5K | 0.00% | −8,550−21.3% | Reduced |
| Two Sigma Investments, LP | 31,328 | $158.8K | 0.00% | +9,089+40.9% | Added |
| New York State Common Retirement Fund | 27,500 | $139.4K | 0.00% | +27,500 | New |
| LPL Financial LLC | 26,335 | $133.5K | 0.00% | +26,335 | New |
| HSBC Holdings PLC | 24,584 | $127.7K | 0.00% | +24,584 | New |
| Raymond James Financial Inc | 24,839 | $125.9K | 0.00% | +10,989+79.3% | Added |
| Voya Investment Management LLC | 24,612 | $124.8K | 0.00% | +24,612 | New |
| Atom Investors LP | 21,790 | $110.5K | 0.01% | +21,790 | New |
| Kennedy Capital Management, Inc. | 21,514 | $109.1K | 0.00% | +21,514 | New |
| Apollon Wealth Management, LLC | 20,500 | $103.9K | 0.00% | −3,000−12.8% | Reduced |
| Colony Group, LLC | 20,000 | $101.4K | 0.00% | +20,000 | New |
| Blue Rock Wealth Management LLC | 20,000 | $101.4K | 0.07% | +20,000 | New |
| Farther Finance Advisors, LLC | 19,923 | $101.0K | 0.00% | −4,500−18.4% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 19,856 | $100.7K | 0.00% | +19,856 | New |
| BNP Paribas Arbitrage, SA | 19,550 | $99.1K | 0.00% | +19,550 | New |
| ProShare Advisors LLC | 17,837 | $90.4K | 0.00% | +17,837 | New |
| United Bank | 16,830 | $85.3K | 0.01% | +3,000+21.7% | Added |
| North Star Asset Management Inc | 16,800 | $85.2K | 0.00% | +16,800 | New |
| D. E. Shaw & Co., Inc. | 15,286 | $77.5K | 0.00% | +15,286 | New |
| Creative Planning | 14,509 | $73.6K | 0.00% | +14,509 | New |
| Prelude Capital Management, LLC | 14,481 | $73.4K | 0.01% | −6,837−32.1% | Reduced |
| Oxford Asset Management LLP | 13,734 | $69.6K | 0.02% | +13,734 | New |
| Prudential Financial Inc | 12,390 | $62.8K | 0.00% | +12,390 | New |
| Gladstone Institutional Advisory LLC | 10,800 | $54.8K | 0.00% | +10,800 | New |
| CIBC World Markets Corp | 10,718 | $54.3K | 0.00% | +10,718 | New |
| Catalyst Funds Management Pty Ltd | 10,700 | $54.2K | 0.01% | −7,253−40.4% | Reduced |
| Tower Research Capital LLC (TRC) | 10,341 | $52.4K | 0.00% | −17,203−62.5% | Reduced |
| Victory Capital Management Inc | 10,262 | $52.0K | 0.00% | +10,262 | New |
| Legal & General Group Plc | 9,570 | $48.5K | 0.00% | +9,570 | New |
| Simplex Trading, LLC | 9,203 | $46.0K | 0.00% | −87,649−90.5% | Reduced |
| Ameritas Investment Partners, Inc. | 8,881 | $45.0K | 0.00% | +8,881 | New |
| California State Teachers Retirement System | 5,428 | $27.5K | 0.00% | +5,428 | New |
| Amalgamated Bank | 2,971 | $15.0K | 0.00% | +2,971 | New |
| Leonteq Securities AG | 2,500 | $12.7K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 1,920 | $9.73K | 0.01% | +524+37.5% | Added |
| Twin Peaks Wealth Advisors, LLC | 1,815 | $9.49K | 0.00% | +1,815 | New |
| Nisa Investment Advisors, LLC | 1,203 | $6.10K | 0.00% | +1,203 | New |