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 |
|---|---|---|---|---|---|
| BNP Paribas Arbitrage, SA | 2 | $7 | 0.00% | +2 | New |
| Strategic Investment Solutions, Inc. | 8 | $29 | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 52 | $188 | 0.00% | 00.0% | Unchanged |
| Continuum Advisory, LLC | 210 | $760 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 215 | $779 | 0.00% | +215 | New |
| PFS Partners, LLC | 340 | $1.23K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 358 | $1.30K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 400 | $1.45K | 0.00% | +250+166.7% | Added |
| R Squared Ltd | 870 | $3.15K | 0.00% | +870 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 1,234 | $4.47K | 0.00% | +1,234 | New |
| BFSG, LLC | 2,000 | $7.24K | 0.00% | +2,000 | New |
| Group One Trading, L.P. | 7,240 | $26.2K | 0.00% | +7,240 | New |
| Alterna Wealth Management, Inc | 10,000 | $36.2K | 0.03% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 10,078 | $36.5K | 0.00% | +10,078 | New |
| Victory Capital Management Inc | 10,138 | $36.7K | 0.00% | +10,138 | New |
| Raymond James Financial Inc | 10,694 | $38.7K | 0.00% | +10,694 | New |
| XTX Topco Ltd | 11,182 | $40.5K | 0.00% | −6,080−35.2% | Reduced |
| Two Sigma Advisers, LP | 12,250 | $44.3K | 0.00% | −66,100−84.4% | Reduced |
| Citadel Advisors LLC | 12,361 | $44.7K | 0.00% | −954,246−98.7% | Reduced |
| Simplex Trading, LLC | 13,161 | $47.0K | 0.00% | +12,371+1,565.9% | Added |
| Boothbay Fund Management, LLC | 14,568 | $52.7K | 0.00% | +14,568 | New |
| Man Group plc | 15,248 | $55.2K | 0.00% | +15,248 | New |
| ExodusPoint Capital Management, LP | 16,786 | $61.0K | 0.00% | +16,786 | New |
| Alpine Global Management, LLC | 17,429 | $63.1K | 0.02% | +17,429 | New |
| Wolverine Trading, LLC | 18,853 | $66.2K | 0.00% | +18,853 | New |
| Two Sigma Investments, LP | 21,628 | $78.3K | 0.00% | +21,628 | New |
| Farther Finance Advisors, LLC | 24,423 | $88.4K | 0.00% | −9,000−26.9% | Reduced |
| Squarepoint Ops LLC | 26,614 | $96.3K | 0.00% | +13,233+98.9% | Added |
| Diametric Capital, LP | 29,812 | $107.9K | 0.07% | +29,812 | New |
| Oxford Asset Management LLP | 31,784 | $115.1K | 0.05% | +31,784 | New |
| Tower Research Capital LLC (TRC) | 32,856 | $118.9K | 0.00% | +19,316+142.7% | Added |
| D.A. Davidson & Co. | 39,000 | $141.2K | 0.00% | +10,000+34.5% | Added |
| Charles Schwab Investment Management Inc | 39,689 | $143.7K | 0.00% | +13,000+48.7% | Added |
| Morgan Stanley | 41,213 | $149.2K | 0.00% | +41,212+4,121,200.0% | Added |
| Balyasny Asset Management LLC | 44,310 | $160.4K | 0.00% | +44,310 | New |
| Kingswood Wealth Advisors, LLC | 47,000 | $170.1K | 0.01% | +47,000 | New |
| Jefferies Financial Group Inc. | 55,600 | $201.3K | 0.00% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 63,635 | $230.4K | 0.00% | −322,949−83.5% | Reduced |
| American Century Companies Inc | 88,112 | $319.0K | 0.00% | +26,516+43.0% | Added |
| Bank of America Corp | 91,224 | $330.2K | 0.00% | +90,604+14,613.5% | Added |
| Citigroup Inc | 104,480 | $378.2K | 0.00% | −28,503−21.4% | Reduced |
| Wells Fargo & Company | 105,769 | $382.9K | 0.00% | +103,269+4,130.8% | Added |
| Omers Administration Corp | 138,000 | $499.6K | 0.00% | +138,000 | New |
| Barclays PLC | 159,407 | $577.1K | 0.00% | +159,407 | New |
| JPMorgan Chase & Co | 178,532 | $646.3K | 0.00% | +147,092+467.8% | Added |
| Northern Trust Corp | 182,625 | $661.1K | 0.00% | +51,811+39.6% | Added |
| Jane Street Group, LLC | 199,006 | $720.4K | 0.00% | +175,252+737.8% | Added |
| StemPoint Capital LP | 200,475 | $725.7K | 0.18% | +200,475 | New |
| UBS Group AG | 229,576 | $831.1K | 0.00% | +229,576 | New |
| Royal Bank of Canada | 239,137 | $865.0K | 0.00% | +120,139+101.0% | Added |
| Dimensional Fund Advisors LP | 243,369 | $880.6K | 0.00% | +97,845+67.2% | Added |
| 683 Capital Management, LLC | 248,000 | $897.8K | 0.09% | +248,000 | New |
| Goldman Sachs Group Inc | 261,821 | $947.8K | 0.00% | +261,821 | New |
| Gsa Capital Partners LLP | 274,426 | $993.0K | 0.07% | −12,174−4.2% | Reduced |
| J. Goldman & Co LP | 300,131 | $1.09M | 0.04% | +300,131 | New |
| State Street Corp | 300,510 | $1.09M | 0.00% | +132,202+78.5% | Added |
| Knott David M Jr | 308,133 | $1.12M | 0.40% | +200,959+187.5% | Added |
| Millennium Management LLC | 367,989 | $1.33M | 0.00% | +259,333+238.7% | Added |
| Integral Health Asset Management, LLC | 375,000 | $1.36M | 0.12% | +375,000 | New |
| Qube Research & Technologies Ltd | 430,024 | $1.56M | 0.00% | +290,869+209.0% | Added |
| Checkpoint Capital L.P. | 432,561 | $1.57M | 0.80% | −1,303,916−75.1% | Reduced |
| Renaissance Technologies LLC | 574,455 | $2.08M | 0.00% | −574,720−50.0% | Reduced |
| Tang Capital Management LLC | 671,134 | $2.43M | 0.16% | 00.0% | Unchanged |
| Ally Bridge Group (NY) LLC | 699,730 | $2.53M | 2.17% | +699,730 | New |
| Susquehanna International Group, LLP | 787,842 | $2.85M | 0.00% | +654,613+491.3% | Added |
| Geode Capital Management, LLC | 891,407 | $3.23M | 0.00% | +82,306+10.2% | Added |
| Octagon Capital Advisors LP | 900,000 | $3.26M | 0.55% | +900,000 | New |
| 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 |
| Alyeska Investment Group, L.P. | 1,278,441 | $4.63M | 0.02% | −450,097−26.0% | Reduced |
| BlackRock, Inc. | 1,525,113 | $5.52M | 0.00% | +128,551+9.2% | Added |
| Woodline Partners LP | 1,683,000 | $6.09M | 0.04% | −5490.0% | Reduced |
| Tikvah Management LLC | 2,460,833 | $8.91M | 2.43% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,604,927 | $13.0M | 0.00% | +617,349+20.7% | Added |
| Point72 Asset Management, L.P. | 4,883,197 | $17.7M | 0.05% | +4,883,197 | New |
| FMR LLC | 12,097,429 | $43.8M | 0.00% | +728,000+6.4% | Added |
| Federated Hermes, Inc. | 14,666,600 | $53.1M | 0.12% | 00.0% | Unchanged |
| 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 |