Who Owns aTyr Pharma, Inc. (ATYR)?Hedge Fund & Institutional Holders

$0.83-0.03 (-3.99%)HealthcareNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$1.360100080000006e+163T

% of Float Held

1.0869603952908353e+246%

QoQ Change in Holders

+10 / -8

Price History

$0.65$2.14$3.63$5.12$6.61Sep 24Jun 25Mar 26

ATYR — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
FEDERATED HERMES, INC.New Position+10.5M+$8.0B
GROUP ONE TRADING LLCIncreased+174K+$136.6M
KINGSWOOD WEALTH ADVISORS, LLCNew Position+52K+$40.0M
Crossmark Global Holdings, Inc.New Position+13K+$9.0M
Belpointe Asset Management LLCNew Position+10K+$8.0M
R Squared LtdNew Position+11K+$8.0M
Invesco Ltd.Increased+374+$1.9M
Newbridge Financial Services Group, Inc.Increased+3K+$1.6M
GSA CAPITAL PARTNERS LLPIncreased+1.9M+$1.5M
Virtu Financial LLCNew Position+79K+$62K
Leonteq Securities AGNew Position+26K+$22K
SG Americas Securities, LLCNew Position+24K+$19K
Apollon Wealth Management, LLCNew Position+13K+$10K
CWM, LLCNew Position+8K+$6K
FNY Investment Advisers, LLCIncreased+4K+$3K

ATYR — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
UBS Group AGDecreased-2.9M-$2.0B
MILLENNIUM MANAGEMENT LLCClosed Position-1.9M-$1.4B
GOLDMAN SACHS GROUP INCDecreased-343K-$496.4M
TANG CAPITAL MANAGEMENT LLCClosed Position-671K-$484.2M
STATE OF WISCONSIN INVESTMENT BOARDClosed Position-438K-$316.2M
Ensign Peak Advisors, IncClosed Position-415K-$299.2M
Artia Global Partners LPClosed Position-372K-$268.6M
BARCLAYS PLCDecreased-167K-$246.3M
XTX Topco LtdDecreased-233K-$225.4M
WELLINGTON MANAGEMENT GROUP LLPClosed Position-289K-$208.7M
CHARLES SCHWAB INVESTMENT MANAGEMENT INCDecreased-39K-$188.3M
FLPUTNAM INVESTMENT MANAGEMENT COClosed Position-235K-$169.7M
Brevan Howard Capital Management LPClosed Position-235K-$168.9M
JANE STREET GROUP, LLCDecreased-40K-$164.3M
DIMENSIONAL FUND ADVISORS LPDecreased-117K-$155.0M

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1Rosalind Advisors, Inc.1,039,080$13.6B4.78%Share
2FEDERATED HERMES, INC.10,509,678$8.0B0.01%Share
3FMR LLC8,558,924$6.0B0.00%Share
4FMR LLC6,139,071$4.0B0.00%Share
5UBS Group AG1,516,801$1.2B0.00%Share
6Tikvah Management LLC460,833$360.0M0.10%Share
7GROUP ONE TRADING LLC225,100$176.0M0.00%Call
8GROUP ONE TRADING LLC191,048$149.0M0.00%Share
9UBS Group AG85,335$66.0M0.00%Share
10GROUP ONE TRADING LLC73,800$57.0M0.00%Put
11KINGSWOOD WEALTH ADVISORS, LLC52,000$40.0M0.00%Share
12ADAR1 Capital Management, LLC50,685$39.0M0.00%Share
13Invesco Ltd.32,978$25.0M0.00%Share
14UBS Group AG23,161$18.0M0.00%Share
15HSBC HOLDINGS PLC16,136$12.0M0.00%Share
16DIADEMA PARTNERS LP15,500$12.0M0.00%Call
17Invesco Ltd.13,255$10.0M0.00%Share
18Crossmark Global Holdings, Inc.12,666$9.0M0.00%Share
19DIADEMA PARTNERS LP11,800$9.0M0.00%Put
20Belpointe Asset Management LLC10,438$8.0M0.00%Share
21R Squared Ltd11,255$8.0M0.00%Share
22Persistent Asset Partners Ltd27$5.0M0.00%Put
23VANGUARD GROUP INC4,279,177$3.0M0.00%Share
24BlackRock, Inc.3,365,941$2.0M0.00%Share
25GSA CAPITAL PARTNERS LLP2,630,638$2.0M0.17%Share
26Newbridge Financial Services Group, Inc.3,600$2.0M0.00%Share
27BlackRock, Inc.2,685,097$2.0M0.00%Share
28STATE STREET CORP1,724,843$1.0M0.00%Share
29Farther Finance Advisors, LLC2,225$1.0M0.00%Share
30Virtu Financial LLC78,953$62K0.00%Share
31SG Americas Securities, LLC24,032$19K0.00%Share
32Leonteq Securities AG21,146$15K0.00%Share
33Apollon Wealth Management, LLC12,900$10K0.00%Share
34Dauntless Investment Group, LLC14,000$10K0.01%Call
35Leonteq Securities AG2,500$7K0.00%Share
36CWM, LLC7,978$6K0.00%Share
37FNY Investment Advisers, LLC4,800$3K0.00%Share
38GEODE CAPITAL MANAGEMENT, LLC1,989,886$1K0.00%Share
39BlackRock, Inc.182,881$00.00%Share
40BlackRock, Inc.707$00.00%Share
41CALDWELL SUTTER CAPITAL, INC.52$00.00%Share
42Persistent Asset Partners Ltd28$00.00%Call
43Persistent Asset Partners Ltd8$00.00%Call
44XTX Topco Ltd79,365$00.00%Share
45WELLS FARGO & COMPANY/MN104,290$00.00%Share
46WELLS FARGO & COMPANY/MN812$00.00%Share
47WELLS FARGO & COMPANY/MN5,000$00.00%Share
48WELLS FARGO & COMPANY/MN6,615$00.00%Share
49Russell Investments Group, Ltd.7,205$00.00%Share
50Police & Firemen's Retirement System of New Jersey26,081$00.00%Share

ATYR Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 202582$33.5B-4
Q3 202586$18.5B-8
Q2 202594$171.7B+8
Q1 202586$126.0B+13
Q4 202473$129.7B+29
Q3 202444$102.4B+8
Q2 202436$103.6B-11
Q1 202447$181.3B—

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As of Q4 2025, 50 institutional investors hold ATYR (aTyr Pharma, Inc.). The largest holder is Rosalind Advisors, Inc. with $13.6B in shares. This quarter, 10 institutions opened new positions and 8 closed their positions.

Frequently Asked Questions

How many hedge funds own ATYR?

As of Q4 2025, 50 institutional investors report holding ATYR (aTyr Pharma, Inc.) in their 13F filings.

Who is the largest institutional holder of ATYR?

The largest institutional holder of ATYR is Rosalind Advisors, Inc. with $13.6B in shares.

Is institutional ownership of ATYR increasing or decreasing?

This quarter, 10 institutions opened new positions in ATYR and 8 closed their positions.