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.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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