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 |
|---|---|---|---|---|---|
| Caldwell Sutter Capital, Inc. | 52 | $264 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 90 | $456 | 0.00% | +90 | New |
| Garde Capital, Inc. | 200 | $1.01K | 0.00% | +200 | New |
| Global Retirement Partners, LLC | 300 | $1.52K | 0.00% | +300 | New |
| Sterling Capital Management LLC | 355 | $1.80K | 0.00% | +355 | New |
| Newbridge Financial Services Group, Inc. | 500 | $2.54K | 0.00% | +500 | New |
| NBC Securities, Inc. | 700 | $3.00K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 700 | $3.55K | 0.00% | +700 | New |
| Sachetta, LLC | 830 | $4.21K | 0.00% | 00.0% | Unchanged |
| Proffitt & Goodson Inc | 880 | $4.46K | 0.00% | +880 | New |
| Nisa Investment Advisors, LLC | 1,203 | $6.10K | 0.00% | +1,203 | New |
| Twin Peaks Wealth Advisors, LLC | 1,815 | $9.49K | 0.00% | +1,815 | New |
| Caitong International Asset Management Co., Ltd | 1,920 | $9.73K | 0.01% | +524+37.5% | Added |
| Leonteq Securities AG | 2,500 | $12.7K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,971 | $15.0K | 0.00% | +2,971 | New |
| California State Teachers Retirement System | 5,428 | $27.5K | 0.00% | +5,428 | New |
| Ameritas Investment Partners, Inc. | 8,881 | $45.0K | 0.00% | +8,881 | New |
| Simplex Trading, LLC | 9,203 | $46.0K | 0.00% | −87,649−90.5% | Reduced |
| Legal & General Group Plc | 9,570 | $48.5K | 0.00% | +9,570 | New |
| Victory Capital Management Inc | 10,262 | $52.0K | 0.00% | +10,262 | New |
| Tower Research Capital LLC (TRC) | 10,341 | $52.4K | 0.00% | −17,203−62.5% | Reduced |
| Catalyst Funds Management Pty Ltd | 10,700 | $54.2K | 0.01% | −7,253−40.4% | Reduced |
| CIBC World Markets Corp | 10,718 | $54.3K | 0.00% | +10,718 | New |
| Gladstone Institutional Advisory LLC | 10,800 | $54.8K | 0.00% | +10,800 | New |
| Prudential Financial Inc | 12,390 | $62.8K | 0.00% | +12,390 | New |
| Oxford Asset Management LLP | 13,734 | $69.6K | 0.02% | +13,734 | New |
| Prelude Capital Management, LLC | 14,481 | $73.4K | 0.01% | −6,837−32.1% | Reduced |
| Creative Planning | 14,509 | $73.6K | 0.00% | +14,509 | New |
| D. E. Shaw & Co., Inc. | 15,286 | $77.5K | 0.00% | +15,286 | New |
| North Star Asset Management Inc | 16,800 | $85.2K | 0.00% | +16,800 | New |
| United Bank | 16,830 | $85.3K | 0.01% | +3,000+21.7% | Added |
| ProShare Advisors LLC | 17,837 | $90.4K | 0.00% | +17,837 | New |
| BNP Paribas Arbitrage, SA | 19,550 | $99.1K | 0.00% | +19,550 | New |
| Police & Firemen's Retirement System of New Jersey | 19,856 | $100.7K | 0.00% | +19,856 | New |
| Farther Finance Advisors, LLC | 19,923 | $101.0K | 0.00% | −4,500−18.4% | 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 |
| Apollon Wealth Management, LLC | 20,500 | $103.9K | 0.00% | −3,000−12.8% | Reduced |
| Kennedy Capital Management, Inc. | 21,514 | $109.1K | 0.00% | +21,514 | New |
| Atom Investors LP | 21,790 | $110.5K | 0.01% | +21,790 | New |
| Voya Investment Management LLC | 24,612 | $124.8K | 0.00% | +24,612 | New |
| Raymond James Financial Inc | 24,839 | $125.9K | 0.00% | +10,989+79.3% | Added |
| HSBC Holdings PLC | 24,584 | $127.7K | 0.00% | +24,584 | New |
| LPL Financial LLC | 26,335 | $133.5K | 0.00% | +26,335 | New |
| New York State Common Retirement Fund | 27,500 | $139.4K | 0.00% | +27,500 | New |
| Two Sigma Investments, LP | 31,328 | $158.8K | 0.00% | +9,089+40.9% | Added |
| D.A. Davidson & Co. | 31,650 | $160.5K | 0.00% | −8,550−21.3% | Reduced |
| Omers Administration Corp | 31,800 | $161.2K | 0.00% | −116,300−78.5% | Reduced |
| Virtu Financial LLC | 31,959 | $162.0K | 0.01% | +31,959 | New |
| Manufacturers Life Insurance Company, The | 32,477 | $164.7K | 0.00% | +32,477 | New |
| Citigroup Inc | 33,333 | $169.0K | 0.00% | +33,332+3,333,200.0% | Added |
| Kingswood Wealth Advisors, LLC | 36,000 | $182.5K | 0.01% | −1,000−2.7% | Reduced |
| Goldman Sachs Group Inc | 36,275 | $183.9K | 0.00% | −346,042−90.5% | Reduced |
| Jane Street Group, LLC | 36,423 | $184.7K | 0.00% | −138,084−79.1% | Reduced |
| Diametric Capital, LP | 37,012 | $187.7K | 0.10% | +37,012 | New |
| Polar Asset Management Partners Inc. | 40,500 | $205.3K | 0.01% | +40,500 | New |
| JPMorgan Chase & Co | 41,107 | $208.4K | 0.00% | +41,107 | New |
| Flputnam Investment Management Co | 41,558 | $210.7K | 0.00% | +41,558 | New |
| Bank of America Corp | 42,346 | $214.7K | 0.00% | −245,965−85.3% | Reduced |
| Price T Rowe Associates Inc | 43,525 | $221.0K | 0.00% | +43,525 | New |
| Intech Investment Management LLC | 44,668 | $226.5K | 0.00% | +44,668 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 47,643 | $241.6K | 0.00% | +47,643 | New |
| Knott David M Jr | 50,367 | $255.4K | 0.12% | −173,040−77.5% | Reduced |
| Quadrature Capital Ltd | 56,022 | $282.9K | 0.00% | +56,022 | New |
| Avantax Advisory Services, Inc. | 57,669 | $292.4K | 0.00% | +57,669 | New |
| Deutsche Bank AG | 60,296 | $305.7K | 0.00% | +60,296 | New |
| Alliancebernstein L.P. | 64,480 | $326.9K | 0.00% | +12,563+24.2% | Added |
| Group One Trading, L.P. | 70,767 | $358.8K | 0.01% | −18,904−21.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 77,264 | $391.7K | 0.00% | −25,442−24.8% | Reduced |
| Fred Alger Management, LLC | 92,493 | $468.9K | 0.00% | +92,493 | New |
| Royal Bank of Canada | 96,168 | $487.0K | 0.00% | +71,463+289.3% | Added |
| Citadel Advisors LLC | 119,117 | $603.9K | 0.00% | −141,890−54.4% | Reduced |
| Rhumbline Advisers | 124,158 | $629.5K | 0.00% | +124,158 | New |
| Main Street Financial Solutions, LLC | 143,600 | $728.1K | 0.05% | +9,350+7.0% | Added |
| Parkman Healthcare Partners LLC | 150,000 | $760.5K | 0.09% | +150,000 | New |
| Dauntless Investment Group, LLC | 158,402 | $803.1K | 3.77% | −12,287−7.2% | Reduced |
| Bank of New York Mellon Corp | 185,894 | $942.5K | 0.00% | +185,894 | New |
| Nuveen, LLC | 194,112 | $984.1K | 0.00% | +194,112 | New |
| Thoroughbred Financial Services, LLC | 210,775 | $1.07M | 0.07% | +210,775 | New |
| Dimensional Fund Advisors LP | 214,546 | $1.09M | 0.00% | −13,548−5.9% | Reduced |
| Wellington Management Group LLP | 214,928 | $1.09M | 0.00% | +46,186+27.4% | Added |
| Ensign Peak Advisors, Inc | 235,675 | $1.19M | 0.00% | +235,675 | New |
| Susquehanna International Group, LLP | 254,018 | $1.29M | 0.00% | −1,479,063−85.3% | Reduced |
| Charles Schwab Investment Management Inc | 258,551 | $1.31M | 0.00% | +218,640+547.8% | Added |
| Morgan Stanley | 259,966 | $1.32M | 0.00% | −2,713−1.0% | Reduced |
| Wells Fargo & Company | 277,388 | $1.41M | 0.00% | +109,169+64.9% | Added |
| Ally Bridge Group (NY) LLC | 287,720 | $1.46M | 1.21% | −489,300−63.0% | Reduced |
| Barclays PLC | 296,586 | $1.50M | 0.00% | +59,495+25.1% | Added |
| MAI Capital Management | 369,127 | $1.87M | 0.01% | −289,203−43.9% | Reduced |
| Gsa Capital Partners LLP | 496,289 | $2.52M | 0.18% | +163,965+49.3% | Added |
| Marshall Wace, LLP | 511,412 | $2.59M | 0.00% | −327,040−39.0% | Reduced |
| Renaissance Technologies LLC | 518,355 | $2.63M | 0.00% | +38,400+8.0% | Added |
| Invesco Ltd. | 598,008 | $3.03M | 0.00% | +598,008 | New |
| Erste Asset Management GmbH | 600,000 | $3.04M | 0.03% | 00.0% | Unchanged |
| Tang Capital Management LLC | 671,134 | $3.40M | 0.17% | 00.0% | Unchanged |
| Northern Trust Corp | 680,936 | $3.45M | 0.00% | +494,319+264.9% | Added |
| Point72 Asset Management, L.P. | 988,677 | $5.01M | 0.01% | −1,855,422−65.2% | Reduced |
| Integral Health Asset Management, LLC | 1,050,000 | $5.32M | 0.50% | +350,000+50.0% | Added |
| State Street Corp | 1,239,663 | $6.29M | 0.00% | +872,353+237.5% | Added |
| Alyeska Investment Group, L.P. | 1,412,749 | $7.16M | 0.03% | +134,852+10.6% | Added |