aTYR PHARMA INC - ATYR
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 13 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rosalind Advisors, Inc. | History | No change | 1,039,080 | 13,601 | 4.78% | 2.59% | 1 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| FMR LLC | History | No change | 14,697,995 | 11,510 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| FEDERATED HERMES, INC. | History | Reduced | 10,509,678 | 8,230 | 0.01% | 0.01% | 3 | -34,759 | -0.33% | Q4 2025 | Feb 12, 2026 |
| BlackRock, Inc. | History | Added to | 6,549,699 | 5,129 | 0.0% | 0.0% | 4 | +75,815 | 1.17% | Q4 2025 | Feb 12, 2026 |
| VANGUARD GROUP INC | History | Reduced | 4,961,871 | 3,885 | 0.0% | 0.0% | 5 | -669,064 | -11.88% | Q4 2025 | Jan 29, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 2,630,638 | 2,060 | 0.18% | 0.04% | 6 | +1,923,907 | 272.23% | Q4 2025 | Feb 06, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 2,283,717 | 1,788 | 0.0% | 0.0% | 7 | +105,514 | 4.84% | Q4 2025 | Feb 09, 2026 |
| STATE STREET CORP | History | Reduced | 1,724,843 | 1,350 | 0.0% | 0.0% | 8 | -2,471,323 | -58.89% | Q4 2025 | Feb 13, 2026 |
| UBS Group AG | History | Reduced | 1,625,297 | 1,272 | 0.0% | 0.0% | 9 | -2,880,658 | -63.93% | Q4 2025 | Jan 29, 2026 |
| MORGAN STANLEY | History | Added to | 1,403,009 | 1,098 | 0.0% | 0.0% | 10 | +692,668 | 97.51% | Q4 2025 | Feb 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 1,089,343 | 852 | 0.0% | 0.0% | 11 | -142,729 | -11.58% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA ADVISERS, LP | History | New | 841,350 | 658 | 0.0% | — | 12 | +841,350 | New | Q4 2025 | Feb 17, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | New | 769,820 | 602 | 0.0% | — | 13 | +769,820 | New | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Added to | 702,186 | 549 | 0.0% | 0.0% | 14 | +28,064 | 4.16% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 523,349 | 409 | 0.0% | 0.0% | 15 | -400,436 | -43.35% | Q4 2025 | Feb 12, 2026 |
| Tikvah Management LLC | History | No change | 460,833 | 360 | 0.1% | 0.1% | 16 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 454,443 | 355 | 0.0% | 0.0% | 17 | +243,443 | 115.38% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 381,000 | 298 | 0.0% | 0.0% | 18 | -458,000 | -54.59% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 345,587 | 270 | 0.0% | 0.0% | 19 | -342,578 | -49.78% | Q4 2025 | Mar 25, 2026 |
| Nuveen, LLC | History | No change | 227,941 | 178 | 0.0% | 0.0% | 20 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Reduced | 221,767 | 173 | 0.0% | 0.0% | 21 | -39,276 | -15.05% | Q4 2025 | Feb 13, 2026 |
| Bank of New York Mellon Corp | History | Reduced | 193,532 | 151 | 0.0% | 0.0% | 22 | -6,266 | -3.14% | Q4 2025 | Feb 10, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 191,048 | 149 | 0.0% | 0.0% | 23 | +173,808 | 1008.17% | Q4 2025 | Feb 12, 2026 |
| VICTORY CAPITAL MANAGEMENT INC | History | Reduced | 181,966 | 142 | 0.0% | 0.0% | 24 | -10,847 | -5.63% | Q4 2025 | Feb 13, 2026 |
| BARCLAYS PLC | History | Reduced | 174,182 | 136 | 0.0% | 0.0% | 25 | -167,177 | -48.97% | Q4 2025 | Feb 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 126,700 | 99 | 0.0% | 0.0% | 26 | -50,971 | -28.69% | Q4 2025 | Feb 17, 2026 |
| DEUTSCHE BANK AG\ | History | Added to | 120,341 | 93 | 0.0% | 0.0% | 27 | +117,239 | 3779.46% | Q4 2025 | Feb 11, 2026 |
| WELLS FARGO & COMPANY/MN | History | Added to | 116,717 | 91 | 0.0% | 0.0% | 28 | +5,658 | 5.09% | Q4 2025 | Feb 13, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 110,373 | 86 | 0.0% | 0.0% | 29 | +4,556 | 4.31% | Q4 2025 | Feb 11, 2026 |
| RHUMBLINE ADVISERS | History | Reduced | 99,762 | 78 | 0.0% | 0.0% | 30 | -22,645 | -18.5% | Q4 2025 | Feb 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 97,497 | 76 | 0.0% | 0.0% | 31 | -117,049 | -54.56% | Q4 2025 | Feb 12, 2026 |
| XTX Topco Ltd | History | Reduced | 79,365 | 62 | 0.0% | 0.01% | 33 | -233,045 | -74.6% | Q4 2025 | Feb 17, 2026 |
| Virtu Financial LLC | History | New | 78,953 | 62 | 0.0% | — | 32 | +78,953 | New | Q4 2025 | Feb 23, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | No change | 64,480 | 50 | 0.0% | 0.0% | 34 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| KINGSWOOD WEALTH ADVISORS, LLC | History | New | 52,000 | 40 | 0.0% | — | 35 | +52,000 | New | Q4 2025 | Jan 28, 2026 |
| ADAR1 Capital Management, LLC | History | Reduced | 50,685 | 39 | 0.0% | 0.03% | 36 | -431,615 | -89.49% | Q4 2025 | Feb 18, 2026 |
| Invesco Ltd. | History | Added to | 46,233 | 36 | 0.0% | 0.0% | 38 | +374 | 0.82% | Q4 2025 | Feb 19, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | No change | 46,126 | 36 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Reduced | 41,844 | 32 | 0.0% | 0.0% | 39 | -7,678 | -15.5% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA SECURITIES, LLC | History | New | 39,006 | 30 | 0.0% | — | 40 | +39,006 | New | Q4 2025 | Feb 17, 2026 |
| SEI INVESTMENTS CO | History | No change | 33,829 | 26 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| INTECH INVESTMENT MANAGEMENT LLC | History | No change | 31,774 | 24 | 0.0% | 0.0% | 42 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| LPL Financial LLC | History | New | 30,100 | 23 | 0.0% | — | 43 | +30,100 | New | Q4 2025 | Feb 11, 2026 |
| Rockefeller Capital Management L.P. | History | No change | 28,118 | 22 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q4 2025 | Mar 16, 2026 |
| DIADEMA PARTNERS LP | History | Reduced | 27,300 | 21 | 0.0% | 0.04% | 46 | -177,600 | -86.68% | Q4 2025 | Feb 17, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 27,500 | 21 | 0.0% | 0.0% | 45 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| SIMPLEX TRADING, LLC | History | New | 26,227 | 20 | 0.0% | — | 48 | +26,227 | New | Q4 2025 | Feb 11, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 26,518 | 20 | 0.0% | 0.0% | 47 | +5,823 | 28.14% | Q4 2025 | Feb 10, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 26,081 | 20 | 0.0% | 0.0% | 49 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| SG Americas Securities, LLC | History | Added to | 24,032 | 19 | 0.0% | 0.0% | 50 | +2,569 | 11.97% | Q4 2025 | Jan 09, 2026 |
| Neuberger Berman Group LLC | History | New | 20,454 | 16 | 0.0% | — | 51 | +20,454 | New | Q4 2025 | Feb 13, 2026 |
| RBF Capital, LLC | History | No change | 20,000 | 15 | 0.0% | 0.0% | 52 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| ProShare Advisors LLC | History | Added to | 17,524 | 13 | 0.0% | 0.0% | 53 | +2,651 | 17.82% | Q4 2025 | Feb 06, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | Added to | 15,961 | 12 | 0.0% | 0.0% | 54 | +800 | 5.28% | Q4 2025 | Feb 18, 2026 |
| HSBC HOLDINGS PLC | History | Reduced | 16,136 | 12 | 0.0% | 0.0% | 55 | -3 | -0.02% | Q4 2025 | Mar 20, 2026 |
| VOYA INVESTMENT MANAGEMENT LLC | History | No change | 16,594 | 12 | 0.0% | 0.0% | 56 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| MAI Capital Management | History | Reduced | 15,239 | 11 | 0.0% | 0.0% | 57 | -7,602 | -33.28% | Q4 2025 | Feb 13, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 13,729 | 10 | 0.0% | 0.0% | 58 | -20,105 | -59.42% | Q4 2025 | Feb 17, 2026 |
| Apollon Wealth Management, LLC | History | Reduced | 12,900 | 10 | 0.0% | 0.0% | 59 | -7,000 | -35.18% | Q4 2025 | Jan 22, 2026 |
| Dauntless Investment Group, LLC | History | No change | 14,000 | 10 | 0.01% | 0.01% | 60 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Crossmark Global Holdings, Inc. | History | New | 12,666 | 9 | 0.0% | — | 61 | +12,666 | New | Q4 2025 | Feb 03, 2026 |
| R Squared Ltd | History | New | 11,255 | 8 | 0.0% | — | 64 | +11,255 | New | Q4 2025 | Jan 30, 2026 |
| Gladstone Institutional Advisory LLC | History | Reduced | 11,300 | 8 | 0.0% | 0.0% | 63 | -2,000 | -15.04% | Q4 2025 | Feb 17, 2026 |
| Belpointe Asset Management LLC | History | No change | 10,438 | 8 | 0.0% | 0.0% | 62 | 0 | 0.0% | Q4 2025 | Jan 27, 2026 |
| Legal & General Group Plc | History | No change | 9,570 | 7 | 0.0% | 0.0% | 65 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| CWM, LLC | History | Added to | 7,978 | 6 | 0.0% | — | 67 | +7,959 | 41889.47% | Q4 2025 | Jan 26, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 8,881 | 6 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| ROYAL BANK OF CANADA | History | New | 5,253 | 5 | 0.0% | — | 68 | +5,253 | New | Q4 2025 | Feb 17, 2026 |
| Russell Investments Group, Ltd. | History | Reduced | 7,205 | 5 | 0.0% | 0.0% | 69 | -259 | -3.47% | Q4 2025 | Feb 17, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Added to | 5,901 | 4 | 0.0% | 0.0% | 70 | +469 | 8.63% | Q4 2025 | Feb 17, 2026 |
| FNY Investment Advisers, LLC | History | Added to | 4,848 | 3 | 0.0% | — | 71 | +4,141 | 585.71% | Q4 2025 | Jan 16, 2026 |
| Newbridge Financial Services Group, Inc. | History | Added to | 3,600 | 2 | 0.0% | — | 74 | +3,100 | 620.0% | Q4 2025 | Jan 21, 2026 |
| CITIGROUP INC | History | Reduced | 3,070 | 2 | 0.0% | 0.0% | 72 | -2,647 | -46.3% | Q4 2025 | Feb 13, 2026 |
| AMALGAMATED BANK | History | Added to | 3,014 | 2 | 0.0% | 0.0% | 73 | +43 | 1.45% | Q4 2025 | Feb 05, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 1,500 | 1 | 0.0% | — | 75 | +1,500 | New | Q4 2025 | Feb 17, 2026 |
| Farther Finance Advisors, LLC | History | Added to | 2,225 | 1 | 0.0% | 0.0% | 76 | +125 | 5.95% | Q4 2025 | Jan 23, 2026 |
| Affinity Asset Advisors, LLC | History | Closed out | 0 | 0 | — | 0.13% | — | -2,100,000 | -100.0% | Q3 2025 | Nov 13, 2025 |
| MILLENNIUM MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,890,921 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Artia Global Partners LP | History | Closed out | 0 | 0 | — | 0.11% | — | -972,276 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TANG CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -671,134 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Eversept Partners, LP | History | Closed out | 0 | 0 | — | 0.03% | — | -658,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Ally Bridge Group (NY) LLC | History | Closed out | 0 | 0 | — | 0.26% | — | -600,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| LMR Partners LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -568,900 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Caption Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -510,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TUDOR INVESTMENT CORP ET AL | History | Closed out | 0 | 0 | — | 1.67% | — | -500,000 | -100.0% | Q3 2025 | Dec 09, 2025 |
| BALYASNY ASSET MANAGEMENT L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -500,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | Closed out | 0 | 0 | — | 0.0% | — | -438,262 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Ensign Peak Advisors, Inc | History | Closed out | 0 | 0 | — | 0.0% | — | -414,732 | -100.0% | Q3 2025 | Nov 13, 2025 |
| DLD Asset Management, LP | History | Closed out | 0 | 0 | — | 0.02% | — | -389,800 | -100.0% | Q3 2025 | Nov 14, 2025 |
| READYSTATE ASSET MANAGEMENT LP | History | Closed out | 0 | 0 | — | 0.01% | — | -300,000 | -100.0% | Q3 2025 | Nov 07, 2025 |
| WELLINGTON MANAGEMENT GROUP LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -289,231 | -100.0% | Q3 2025 | Nov 14, 2025 |
| FLPUTNAM INVESTMENT MANAGEMENT CO | History | Closed out | 0 | 0 | — | 0.0% | — | -235,255 | -100.0% | Q3 2025 | Oct 10, 2025 |
| Brevan Howard Capital Management LP | History | Closed out | 0 | 0 | — | 0.0% | — | -234,613 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TORONTO DOMINION BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -218,800 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Rafferty Asset Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -170,610 | -100.0% | Q3 2025 | Nov 12, 2025 |
| Graham Capital Management, L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -147,851 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Main Street Financial Solutions, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -144,950 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -124,924 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Woodline Partners LP | History | Closed out | 0 | 0 | — | 0.0% | — | -102,687 | -100.0% | Q3 2025 | Nov 14, 2025 |
| D. E. Shaw & Co., Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -83,312 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SIG BROKERAGE, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -60,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -45,830 | -100.0% | Q3 2025 | Oct 20, 2025 |
| Exome Asset Management LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -40,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| PROFUND ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -36,785 | -100.0% | Q3 2025 | Nov 06, 2025 |
| COURIER CAPITAL LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -25,000 | -100.0% | Q3 2025 | Oct 29, 2025 |
| Leonteq Securities AG | History | Closed out | 0 | 0 | — | 0.0% | — | -21,146 | -100.0% | Q3 2025 | Feb 17, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -20,994 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Hobbs Group Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -18,653 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Three Magnolias Financial Advisors, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -17,000 | -100.0% | Q3 2025 | Oct 21, 2025 |
| NORTH STAR ASSET MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -16,800 | -100.0% | Q3 2025 | Nov 10, 2025 |
| Atom Investors LP | History | Closed out | 0 | 0 | — | 0.0% | — | -13,547 | -100.0% | Q3 2025 | Nov 14, 2025 |
| UNITED BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -11,970 | -100.0% | Q3 2025 | Nov 07, 2025 |
| PRUDENTIAL FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -10,890 | -100.0% | Q3 2025 | Nov 13, 2025 |
| NOMURA HOLDINGS INC | History | Closed out | 0 | 0 | — | 0.0% | — | -10,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SIGNATUREFD, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,809 | -100.0% | Q3 2025 | Oct 21, 2025 |
| QUADRANT CAPITAL GROUP LLC | History | Closed out | 0 | 0 | — | — | — | -462 | -100.0% | Q3 2025 | Nov 13, 2025 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Reduced | 478 | 0 | — | — | — | -333 | -41.06% | Q4 2025 | Feb 06, 2026 |
| Sterling Capital Management LLC | History | Added to | 934 | 0 | — | — | — | +331 | 54.89% | Q4 2025 | Feb 13, 2026 |
| US BANCORP \DE\ | History | Closed out | 0 | 0 | — | — | — | -316 | -100.0% | Q3 2025 | Nov 12, 2025 |
| Global Retirement Partners, LLC | History | Closed out | 0 | 0 | — | — | — | -300 | -100.0% | Q3 2025 | Oct 21, 2025 |
| NATIXIS | History | New | 280 | 0 | — | — | — | +280 | New | Q4 2025 | Feb 13, 2026 |
| EverSource Wealth Advisors, LLC | History | New | 161 | 0 | — | — | — | +161 | New | Q4 2025 | Feb 06, 2026 |
| T. Rowe Price Investment Management, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -141 | -100.0% | Q3 2025 | Nov 14, 2025 |
| ROTHSCHILD INVESTMENT LLC | History | New | 109 | 0 | — | — | — | +109 | New | Q4 2025 | Feb 10, 2026 |
| Advisory Services Network, LLC | History | Closed out | 0 | 0 | — | — | — | -91 | -100.0% | Q3 2025 | Nov 18, 2025 |
| Caitong International Asset Management Co., Ltd | History | Added to | 134 | 0 | — | — | — | +67 | 100.0% | Q4 2025 | Mar 03, 2026 |
| FINANCIAL CONSULATE, INC | History | Closed out | 0 | 0 | — | — | — | -55 | -100.0% | Q3 2025 | Oct 21, 2025 |
| CALDWELL SUTTER CAPITAL, INC. | History | No change | 52 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| MCF Advisors LLC | History | No change | 400 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Larson Financial Group LLC | History | No change | 150 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |