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, Q4 2024
Institutional positions in aTYR PHARMA INC as of Dec 31, 2024. 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
- 77
- +22 vs. Q3 2024
- Shares held
- 54.9M
- +7.80M (+16.6%) vs. Q3 2024
- Total value
- $198.6M
- +$115.8M (+139.7%) vs. Q3 2024
- New holders
- 30
- 24 more added
- Sold out
- 8
- 12 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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, Q4 2024
Shares, value and share of portfolio for each institution holding aTYR PHARMA INC; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 14,666,600 | $53.1M | 0.12% | 00.0% | Unchanged |
| FMR LLC | 12,097,429 | $43.8M | 0.00% | +728,000+6.4% | Added |
| Point72 Asset Management, L.P. | 4,883,197 | $17.7M | 0.05% | +4,883,197 | New |
| Vanguard Group Inc | 3,604,927 | $13.0M | 0.00% | +617,349+20.7% | Added |
| Tikvah Management LLC | 2,460,833 | $8.91M | 2.43% | 00.0% | Unchanged |
| Woodline Partners LP | 1,683,000 | $6.09M | 0.04% | −5490.0% | Reduced |
| BlackRock, Inc. | 1,525,113 | $5.52M | 0.00% | +128,551+9.2% | Added |
| Alyeska Investment Group, L.P. | 1,278,441 | $4.63M | 0.02% | −450,097−26.0% | Reduced |
| Logos Global Management LP | 1,000,000 | $3.62M | 0.42% | −1,000,000−50.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,000,000 | $3.62M | 0.01% | 00.0% | Unchanged |
| Octagon Capital Advisors LP | 900,000 | $3.26M | 0.55% | +900,000 | New |
| Geode Capital Management, LLC | 891,407 | $3.23M | 0.00% | +82,306+10.2% | Added |
| Susquehanna International Group, LLP | 787,842 | $2.85M | 0.00% | +654,613+491.3% | Added |
| Ally Bridge Group (NY) LLC | 699,730 | $2.53M | 2.17% | +699,730 | New |
| Tang Capital Management LLC | 671,134 | $2.43M | 0.16% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 574,455 | $2.08M | 0.00% | −574,720−50.0% | Reduced |
| Checkpoint Capital L.P. | 432,561 | $1.57M | 0.80% | −1,303,916−75.1% | Reduced |
| Qube Research & Technologies Ltd | 430,024 | $1.56M | 0.00% | +290,869+209.0% | Added |
| Integral Health Asset Management, LLC | 375,000 | $1.36M | 0.12% | +375,000 | New |
| Millennium Management LLC | 367,989 | $1.33M | 0.00% | +259,333+238.7% | Added |
| Knott David M Jr | 308,133 | $1.12M | 0.40% | +200,959+187.5% | Added |
| State Street Corp | 300,510 | $1.09M | 0.00% | +132,202+78.5% | Added |
| J. Goldman & Co LP | 300,131 | $1.09M | 0.04% | +300,131 | New |
| Gsa Capital Partners LLP | 274,426 | $993.0K | 0.07% | −12,174−4.2% | Reduced |
| Goldman Sachs Group Inc | 261,821 | $947.8K | 0.00% | +261,821 | New |
| 683 Capital Management, LLC | 248,000 | $897.8K | 0.09% | +248,000 | New |
| Dimensional Fund Advisors LP | 243,369 | $880.6K | 0.00% | +97,845+67.2% | Added |
| Royal Bank of Canada | 239,137 | $865.0K | 0.00% | +120,139+101.0% | Added |
| UBS Group AG | 229,576 | $831.1K | 0.00% | +229,576 | New |
| StemPoint Capital LP | 200,475 | $725.7K | 0.18% | +200,475 | New |
| Jane Street Group, LLC | 199,006 | $720.4K | 0.00% | +175,252+737.8% | Added |
| Northern Trust Corp | 182,625 | $661.1K | 0.00% | +51,811+39.6% | Added |
| JPMorgan Chase & Co | 178,532 | $646.3K | 0.00% | +147,092+467.8% | Added |
| Barclays PLC | 159,407 | $577.1K | 0.00% | +159,407 | New |
| Omers Administration Corp | 138,000 | $499.6K | 0.00% | +138,000 | New |
| Wells Fargo & Company | 105,769 | $382.9K | 0.00% | +103,269+4,130.8% | Added |
| Citigroup Inc | 104,480 | $378.2K | 0.00% | −28,503−21.4% | Reduced |
| Bank of America Corp | 91,224 | $330.2K | 0.00% | +90,604+14,613.5% | Added |
| American Century Companies Inc | 88,112 | $319.0K | 0.00% | +26,516+43.0% | Added |
| Schonfeld Strategic Advisors LLC | 63,635 | $230.4K | 0.00% | −322,949−83.5% | Reduced |
| Jefferies Financial Group Inc. | 55,600 | $201.3K | 0.00% | 00.0% | Unchanged |
| Kingswood Wealth Advisors, LLC | 47,000 | $170.1K | 0.01% | +47,000 | New |
| Balyasny Asset Management LLC | 44,310 | $160.4K | 0.00% | +44,310 | New |
| Morgan Stanley | 41,213 | $149.2K | 0.00% | +41,212+4,121,200.0% | Added |
| Charles Schwab Investment Management Inc | 39,689 | $143.7K | 0.00% | +13,000+48.7% | Added |
| D.A. Davidson & Co. | 39,000 | $141.2K | 0.00% | +10,000+34.5% | Added |
| Tower Research Capital LLC (TRC) | 32,856 | $118.9K | 0.00% | +19,316+142.7% | Added |
| Oxford Asset Management LLP | 31,784 | $115.1K | 0.05% | +31,784 | New |
| Diametric Capital, LP | 29,812 | $107.9K | 0.07% | +29,812 | New |
| Squarepoint Ops LLC | 26,614 | $96.3K | 0.00% | +13,233+98.9% | Added |
| Farther Finance Advisors, LLC | 24,423 | $88.4K | 0.00% | −9,000−26.9% | Reduced |
| Two Sigma Investments, LP | 21,628 | $78.3K | 0.00% | +21,628 | New |
| Wolverine Trading, LLC | 18,853 | $66.2K | 0.00% | +18,853 | New |
| Alpine Global Management, LLC | 17,429 | $63.1K | 0.02% | +17,429 | New |
| ExodusPoint Capital Management, LP | 16,786 | $61.0K | 0.00% | +16,786 | New |
| Man Group plc | 15,248 | $55.2K | 0.00% | +15,248 | New |
| Boothbay Fund Management, LLC | 14,568 | $52.7K | 0.00% | +14,568 | New |
| Simplex Trading, LLC | 13,161 | $47.0K | 0.00% | +12,371+1,565.9% | Added |
| Citadel Advisors LLC | 12,361 | $44.7K | 0.00% | −954,246−98.7% | Reduced |
| Two Sigma Advisers, LP | 12,250 | $44.3K | 0.00% | −66,100−84.4% | Reduced |
| XTX Topco Ltd | 11,182 | $40.5K | 0.00% | −6,080−35.2% | Reduced |
| Raymond James Financial Inc | 10,694 | $38.7K | 0.00% | +10,694 | New |
| Victory Capital Management Inc | 10,138 | $36.7K | 0.00% | +10,138 | New |
| Prelude Capital Management, LLC | 10,078 | $36.5K | 0.00% | +10,078 | New |
| Alterna Wealth Management, Inc | 10,000 | $36.2K | 0.03% | 00.0% | Unchanged |
| Group One Trading, L.P. | 7,240 | $26.2K | 0.00% | +7,240 | New |
| BFSG, LLC | 2,000 | $7.24K | 0.00% | +2,000 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 1,234 | $4.47K | 0.00% | +1,234 | New |
| R Squared Ltd | 870 | $3.15K | 0.00% | +870 | New |
| Sachetta, LLC | 400 | $1.45K | 0.00% | +250+166.7% | Added |
| National Bank of Canada | 358 | $1.30K | 0.00% | 00.0% | Unchanged |
| PFS Partners, LLC | 340 | $1.23K | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 215 | $779 | 0.00% | +215 | New |
| Continuum Advisory, LLC | 210 | $760 | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 52 | $188 | 0.00% | 00.0% | Unchanged |
| Strategic Investment Solutions, Inc. | 8 | $29 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 2 | $7 | 0.00% | +2 | New |
| Main Street Financial Solutions, LLC | 0 | $0 | 0.00% | −66,475−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −29,017−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −20,826−100.0% | Sold out |
| StoneX Group Inc. | 0 | $0 | 0.00% | −15,709−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −15,646−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −14,031−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −12,992−100.0% | Sold out |
| Ground Swell Capital, LLC | 0 | $0 | 0.00% | −12,728−100.0% | Sold out |
| Ghost Tree Capital, LLC | – | – | – | – | Not filed |