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, Q1 2026
Institutional positions in aTYR PHARMA INC as of Mar 31, 2026. 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
- 111
- +28 vs. Q4 2025
- Shares held
- 56.1M
- +6.19M (+12.4%) vs. Q4 2025
- Total value
- $43.7M
- +$5.49M (+14.4%) vs. Q4 2025
- New holders
- 36
- 27 more added
- Sold out
- 8
- 30 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Caitong International Asset Management Co., Ltd | 1 | $1 | 0.00% | −66−98.5% | Reduced |
| Root Financial Partners, LLC | 9 | $7 | 0.00% | +9 | New |
| SJS Investment Consulting Inc. | 42 | $33 | 0.00% | +42 | New |
| Caldwell Sutter Capital, Inc. | 52 | $41 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 72 | $57 | 0.00% | +72 | New |
| Larson Financial Group LLC | 150 | $117 | 0.00% | 00.0% | Unchanged |
| Wealth Preservation Advisors, LLC | 157 | $122 | 0.00% | +157 | New |
| Rothschild Investment LLC | 287 | $224 | 0.00% | +178+163.3% | Added |
| Allworth Financial LP | 366 | $286 | 0.00% | +366 | New |
| MCF Advisors LLC | 400 | $312 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 415 | $324 | 0.00% | +254+157.8% | Added |
| Sterling Capital Management LLC | 742 | $579 | 0.00% | −192−20.6% | Reduced |
| Nisa Investment Advisors, LLC | 974 | $760 | 0.00% | +974 | New |
| FNY Investment Advisers, LLC | 1,500 | $1.00K | 0.00% | −3,300−68.8% | Reduced |
| Simplex Trading, LLC | 1,335 | $1.04K | 0.00% | −24,892−94.9% | Reduced |
| Toth Financial Advisory Corp | 1,400 | $1.09K | 0.00% | +1,400 | New |
| Farther Finance Advisors, LLC | 1,320 | $1.12K | 0.00% | −905−40.7% | Reduced |
| Jones Financial Companies LLLP | 1,500 | $1.13K | 0.00% | 00.0% | Unchanged |
| Vision Retirement, LLC | 1,500 | $1.17K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 1,618 | $1.26K | 0.00% | +1,443+824.6% | Added |
| UBS Asset Management Americas Inc | 2,011 | $1.57K | 0.00% | +2,011 | New |
| Newbridge Financial Services Group, Inc. | 2,079 | $1.62K | 0.00% | −1,521−42.3% | Reduced |
| Ares Financial Consulting, LLC | 2,000 | $1.70K | 0.00% | +2,000 | New |
| Advisor Group Holdings, Inc. | 5,000 | $3.90K | 0.00% | +5,000 | New |
| California State Teachers Retirement System | 5,190 | $4.05K | 0.00% | −711−12.0% | Reduced |
| Citigroup Inc | 5,891 | $4.59K | 0.00% | +2,821+91.9% | Added |
| IFP Advisors, Inc | 6,001 | $4.68K | 0.00% | +6,001 | New |
| My Portfolio Guide, LLC | 7,000 | $5.46K | 0.00% | +7,000 | New |
| GAMMA Investing LLC | 7,739 | $6.04K | 0.00% | +7,739 | New |
| Legal & General Group Plc | 7,920 | $6.18K | 0.00% | −1,650−17.2% | Reduced |
| The PNC Financial Services Group, Inc. | 8,196 | $6.39K | 0.00% | +7,718+1,614.6% | Added |
| Ameritas Investment Partners, Inc. | 8,881 | $6.93K | 0.00% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 10,330 | $8.06K | 0.00% | +10,330 | New |
| Voya Investment Management LLC | 10,338 | $8.06K | 0.00% | −6,256−37.7% | Reduced |
| Creative Planning | 10,508 | $8.20K | 0.00% | +10,508 | New |
| Manufacturers Life Insurance Company, The | 10,552 | $8.23K | 0.00% | +10,552 | New |
| Gladstone Institutional Advisory LLC | 11,300 | $8.81K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 11,361 | $8.86K | 0.00% | +4,156+57.7% | Added |
| Royal Bank of Canada | 11,146 | $9.00K | 0.00% | +5,893+112.2% | Added |
| Apollon Wealth Management, LLC | 11,900 | $9.28K | 0.00% | −1,000−7.8% | Reduced |
| Pasadena Private Wealth, LLC | 12,228 | $9.54K | 0.00% | +12,228 | New |
| Crossmark Global Holdings, Inc. | 12,666 | $9.88K | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 13,504 | $10.5K | 0.00% | −1,735−11.4% | Reduced |
| ProShare Advisors LLC | 13,905 | $10.8K | 0.00% | −3,619−20.7% | Reduced |
| Prudential Financial Inc | 14,660 | $11.4K | 0.00% | +14,660 | New |
| Mercer Global Advisors Inc | 15,205 | $11.9K | 0.00% | +15,205 | New |
| Captrust Financial Advisors | 15,982 | $12.5K | 0.00% | +15,982 | New |
| Steward Partners Investment Advisory, LLC | 16,600 | $12.9K | 0.00% | +16,600 | New |
| Raymond James Financial Inc | 16,601 | $12.9K | 0.00% | +640+4.0% | Added |
| Trust Co of Toledo NA | 16,640 | $13.0K | 0.00% | +16,640 | New |
| Close Asset Management Ltd | 16,200 | $13.0K | 0.00% | +16,200 | New |
| JustInvest LLC | 16,669 | $13.0K | 0.00% | +16,669 | New |
| Wealth Enhancement Advisory Services, LLC | 15,578 | $13.2K | 0.00% | +15,578 | New |
| Tower Research Capital LLC (TRC) | 17,426 | $13.6K | 0.00% | +3,697+26.9% | Added |
| HSBC Holdings PLC | 18,214 | $13.9K | 0.00% | +2,078+12.9% | Added |
| Hobbs Group Advisors, LLC | 19,419 | $15.1K | 0.00% | +19,419 | New |
| RBF Capital, LLC | 20,000 | $15.6K | 0.00% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 21,743 | $17.0K | 0.00% | +1,289+6.3% | Added |
| BNP Paribas Arbitrage, SA | 25,278 | $19.7K | 0.00% | −1,240−4.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 26,081 | $20.3K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 26,187 | $20.4K | 0.00% | −5,587−17.6% | Reduced |
| New York State Common Retirement Fund | 27,500 | $21.4K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 28,118 | $21.9K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 33,414 | $26.1K | 0.00% | +33,414 | New |
| SEI Investments Co | 33,829 | $26.4K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 35,549 | $27.7K | 0.00% | +5,449+18.1% | Added |
| CWM, LLC | 36,010 | $28.1K | 0.00% | +28,032+351.4% | Added |
| JPMorgan Chase & Co | 41,987 | $30.7K | 0.00% | −68,386−62.0% | Reduced |
| Virtu Financial LLC | 40,048 | $31.0K | 0.00% | −38,905−49.3% | Reduced |
| Renaissance Technologies LLC | 40,522 | $31.6K | 0.00% | +40,522 | New |
| Barclays PLC | 45,123 | $35.2K | 0.00% | −129,059−74.1% | Reduced |
| Belpointe Asset Management LLC | 45,738 | $35.7K | 0.00% | +35,300+338.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 46,073 | $35.9K | 0.00% | +4,229+10.1% | Added |
| Price T Rowe Associates Inc | 46,126 | $36.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 46,354 | $36.2K | 0.00% | +121+0.3% | Added |
| Wells Fargo & Company | 46,540 | $36.3K | 0.00% | −70,177−60.1% | Reduced |
| Citadel Advisors LLC | 47,372 | $37.0K | 0.00% | +47,372 | New |
| Jane Street Group, LLC | 48,502 | $37.8K | 0.00% | −139,647−74.2% | Reduced |
| Redhawk Wealth Advisors, Inc. | 49,150 | $38.3K | 0.00% | +49,150 | New |
| ADAR1 Capital Management, LLC | 50,685 | $39.5K | 0.00% | 00.0% | Unchanged |
| Kingswood Wealth Advisors, LLC | 52,000 | $40.6K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 64,480 | $50.5K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 88,436 | $69.0K | 0.00% | −93,530−51.4% | Reduced |
| Dimensional Fund Advisors LP | 91,871 | $71.5K | 0.00% | −5,626−5.8% | Reduced |
| Hohimer Wealth Management, LLC | 100,000 | $78.0K | 0.01% | +100,000 | New |
| Rhumbline Advisers | 103,146 | $80.4K | 0.00% | +3,384+3.4% | Added |
| Deutsche Bank AG | 103,326 | $80.6K | 0.00% | −17,015−14.1% | Reduced |
| XTX Topco Ltd | 111,423 | $86.9K | 0.00% | +32,058+40.4% | Added |
| Marshall Wace, LLP | 138,118 | $107.7K | 0.00% | +138,118 | New |
| Group One Trading, L.P. | 184,014 | $143.5K | 0.00% | −7,034−3.7% | Reduced |
| Bank of New York Mellon Corp | 193,531 | $151.0K | 0.00% | −10.0% | Reduced |
| Charles Schwab Investment Management Inc | 210,737 | $164.4K | 0.00% | −11,030−5.0% | Reduced |
| Nuveen, LLC | 229,284 | $178.8K | 0.00% | +1,343+0.6% | Added |
| Goldman Sachs Group Inc | 283,236 | $220.9K | 0.00% | −62,351−18.0% | Reduced |
| Bank of America Corp | 303,559 | $236.8K | 0.00% | +176,859+139.6% | Added |
| AQR Capital Management LLC | 496,018 | $386.9K | 0.00% | −273,802−35.6% | Reduced |
| Vanguard Portfolio Management LLC | 569,227 | $444.0K | 0.00% | +569,227 | New |
| Vanguard Fiduciary Trust Co | 651,832 | $508.4K | 0.00% | +651,832 | New |
| Northern Trust Corp | 711,105 | $554.7K | 0.00% | +8,919+1.3% | Added |
| Susquehanna International Group, LLP | 866,744 | $676.1K | 0.00% | +102,001+13.3% | Added |