ATYR

aTyr Pharma
ATYR

Overview Fund Activity

107 hedge funds and large institutions have $335M invested in aTyr Pharma in 2025 Q2 according to their latest regulatory filings, with 51 funds opening new positions, 25 increasing their positions, 23 reducing their positions, and 29 closing their positions.

Holders
107
Holders Change
+21
Holders Change %
+24.42%
% of All Funds
1.44%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
%
% of All Funds
0.03%
New
51
Increased
25
Reduced
23
Closed
29
Calls
$4.54M
Puts
$3.2M
Net Calls
+$1.34M
Net Calls Change
+$2.88M

Top Buyers

1
BlackRock
1
BlackRock
New York
$29.3M
2
Geode Capital Management
2
Geode Capital Management
Massachusetts
$10.6M
3
State Street
3
State Street
Massachusetts
$6.29M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$23.6M
5
Invesco
5
Invesco
Georgia
$3.03M

Top Sellers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$5.01M
2
ABG
2
Ally Bridge Group
New York
$1.46M
3
Goldman Sachs
3
Goldman Sachs
New York
$184K
4
Marshall Wace
4
Marshall Wace
United Kingdom
$2.59M
5
MCM
5
MAI Capital Management
Ohio
$1.87M
Name Market Value Shares Shares
Change 		Shares
Change %
Federated Hermes
1
Federated Hermes
Pennsylvania
$74.4M 14,666,600 – –
Fidelity Investments
2
Fidelity Investments
Massachusetts
$67.7M 13,350,665 +457,136 +4%
BlackRock
3
BlackRock
New York
$29.3M 5,782,633 +4,188,652 +263%
Vanguard Group
4
Vanguard Group
Pennsylvania
$23.6M 4,655,048 +648,313 +16%
OCA
5
Octagon Capital Advisors
New York
$19.4M 3,820,000 +268,000 +8%
TM
6
Tikvah Management
North Carolina
$12.5M 2,460,833 – –
Geode Capital Management
7
Geode Capital Management
Massachusetts
$10.6M 2,098,076 +1,170,276 +126%
UBS Group
8
UBS Group
Switzerland
$8.85M 1,745,717 +108,531 +7%
WP
9
Woodline Partners
California
$8.53M 1,681,595 – –
Millennium Management
10
Millennium Management
New York
$8.11M 1,600,200 +1,159 +0.1%
Alyeska Investment Group
11
Alyeska Investment Group
Illinois
$7.16M 1,412,749 +134,852 +11%
State Street
12
State Street
Massachusetts
$6.29M 1,239,663 +872,353 +237%
IHAM
13
Integral Health Asset Management
New York
$5.32M 1,050,000 +350,000 +50%
Point72 Asset Management
14
Point72 Asset Management
Connecticut
$5.01M 988,677 -1,855,422 -65%
Northern Trust
15
Northern Trust
Illinois
$3.45M 680,936 +494,319 +265%
TCM
16
Tang Capital Management
California
$3.4M 671,134 – –
EAM
17
Erste Asset Management
Austria
$3.04M 600,000 – –
Invesco
18
Invesco
Georgia
$3.03M 598,008 +598,008 New
Renaissance Technologies
19
Renaissance Technologies
New York
$2.63M 518,355 +38,400 +8%
Marshall Wace
20
Marshall Wace
United Kingdom
$2.59M 511,412 -327,040 -39%
GCP
21
GSA Capital Partners
United Kingdom
$2.52M 496,289 +163,965 +49%
MCM
22
MAI Capital Management
Ohio
$1.87M 369,127 -289,203 -44%
Barclays
23
Barclays
United Kingdom
$1.5M 296,586 +59,495 +25%
ABG
24
Ally Bridge Group
New York
$1.46M 287,720 -489,300 -63%
Wells Fargo
25
Wells Fargo
California
$1.41M 277,388 +109,169 +65%
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