ATYR

aTyr Pharma
ATYR

Overview Fund Activity

108 hedge funds and large institutions have $336M invested in aTyr Pharma in 2025 Q2 according to their latest regulatory filings, with 51 funds opening new positions, 25 increasing their positions, 24 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
108
Holders Change
+22
Holders Change %
+25.58%
% of All Funds
1.45%
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
24
Closed
29
Calls
$5.88M
Puts
$3.81M
Net Calls
+$2.07M
Net Calls Change
+$3.61M

Top Buyers

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

Top Sellers

1
Point72 Asset Management
Point72 Asset Management
Connecticut
$5.01M
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
$1.29M
3
ABG
Ally Bridge Group
New York
$1.46M
4
Goldman Sachs
Goldman Sachs
New York
$184K
5
Marshall Wace
Marshall Wace
United Kingdom
$2.59M
Name Holding Trade Value Shares
Change 		Shares
Change %
Federated Hermes
1
Federated Hermes
Pennsylvania
$74.4M – – –
Fidelity Investments
2
Fidelity Investments
Massachusetts
$67.7M +$2.32M +457,136 +4%
BlackRock
3
BlackRock
New York
$29.3M +$21.2M +4,188,652 +263%
Vanguard Group
4
Vanguard Group
Pennsylvania
$23.6M +$3.29M +648,313 +16%
OCA
5
Octagon Capital Advisors
New York
$19.4M +$1.36M +268,000 +8%
TM
6
Tikvah Management
North Carolina
$12.5M – – –
Geode Capital Management
7
Geode Capital Management
Massachusetts
$10.6M +$5.93M +1,170,276 +126%
UBS Group
8
UBS Group
Switzerland
$8.85M +$550K +108,531 +7%
WP
9
Woodline Partners
California
$8.53M – – –
Millennium Management
10
Millennium Management
New York
$8.11M +$5.88K +1,159 +0.1%
Alyeska Investment Group
11
Alyeska Investment Group
Illinois
$7.16M +$684K +134,852 +11%
State Street
12
State Street
Massachusetts
$6.29M +$4.42M +872,353 +237%
IHAM
13
Integral Health Asset Management
New York
$5.32M +$1.77M +350,000 +50%
Point72 Asset Management
14
Point72 Asset Management
Connecticut
$5.01M -$9.41M -1,855,422 -65%
Northern Trust
15
Northern Trust
Illinois
$3.45M +$2.51M +494,319 +265%
TCM
16
Tang Capital Management
California
$3.4M – – –
EAM
17
Erste Asset Management
Austria
$3.04M – – –
Invesco
18
Invesco
Georgia
$3.03M +$3.03M +598,008 New
Renaissance Technologies
19
Renaissance Technologies
New York
$2.63M +$195K +38,400 +8%
Marshall Wace
20
Marshall Wace
United Kingdom
$2.59M -$1.66M -327,040 -39%
GCP
21
GSA Capital Partners
United Kingdom
$2.52M +$831K +163,965 +49%
MCM
22
MAI Capital Management
Ohio
$1.87M -$1.47M -289,203 -44%
Barclays
23
Barclays
United Kingdom
$1.5M +$302K +59,495 +25%
ABG
24
Ally Bridge Group
New York
$1.46M -$2.48M -489,300 -63%
Wells Fargo
25
Wells Fargo
California
$1.41M +$553K +109,169 +65%
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