ATYR

aTyr Pharma
ATYR

Overview Fund Activity

86 hedge funds and large institutions have $187M invested in aTyr Pharma in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 36 increasing their positions, 14 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
86
Holders Change
+9
Holders Change %
+11.69%
% of All Funds
1.17%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
25
Increased
36
Reduced
14
Closed
16
Calls
$778K
Puts
$2.32M
Net Calls
-$1.54M
Net Calls Change
-$1.5M

Top Buyers

1
OCA
Octagon Capital Advisors
New York
+$8.01M
2
UBS Group
UBS Group
Switzerland
+$4.25M
3
Millennium Management
Millennium Management
New York
+$3.72M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$2.85M
5
Marshall Wace
Marshall Wace
United Kingdom
+$2.53M

Top Sellers

1
Point72 Asset Management
Point72 Asset Management
Connecticut
-$6.16M
2
LGM
Logos Global Management
California
-$3.62M
3
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$3.62M
4
CC
Checkpoint Capital
California
-$1.57M
5
6CM
683 Capital Management
New York
-$898K
Name Holding Trade Value Shares
Change 		Shares
Change %
TSS
76
Two Sigma Securities
New York
$36K +$36K +11,935 New
AWM
77
Alterna Wealth Management
Texas
$30.2K – – –
CIAM
78
Caitong International Asset Management
Hong Kong
$4.22K +$4.22K +1,396 New
PAS
79
Point72 Asia (Singapore)
Singapore
$3.79K +$63 +21 +2%
S
80
Sachetta
Massachusetts
$2.51K +$1.3K +430 +108%
NS
81
NBC Securities
Alabama
$2K +$2K +700 New
PP
82
PFS Partners
New Jersey
$1.03K – – –
CA
83
Continuum Advisory
Idaho
$634 – – –
CSC
84
Caldwell Sutter Capital
California
$157 – – –
SIS
85
Strategic Investment Solutions
Illinois
$24 – – –
Citigroup
86
Citigroup
New York
$3 -$313K -104,479 -100%
Adage Capital Partners
87
Adage Capital Partners
Massachusetts
– -$3.62M -1,000,000 Closed
LGM
88
Logos Global Management
California
– -$3.62M -1,000,000 Closed
CC
89
Checkpoint Capital
California
– -$1.57M -432,561 Closed
6CM
90
683 Capital Management
New York
– -$898K -248,000 Closed
SC
91
Stempoint Capital
New York
– -$726K -200,475 Closed
JPMorgan Chase & Co
92
JPMorgan Chase & Co
New York
– -$646K -178,532 Closed
AGM
93
Alpine Global Management
New York
– -$126K -34,858 Closed
OAM
94
Oxford Asset Management
United Kingdom
– -$115K -31,784 Closed
DC
95
Diametric Capital
Massachusetts
– -$108K -29,812 Closed
Man Group
96
Man Group
United Kingdom
– -$55.2K -15,248 Closed
Two Sigma Advisers
97
Two Sigma Advisers
New York
– -$44.3K -12,250 Closed
Victory Capital Management
98
Victory Capital Management
Texas
– -$36.7K -10,138 Closed
BL
99
BFSG LLC
California
– -$7.24K -2,000 Closed
RS
100
R Squared
Hong Kong
– -$3.15K -870 Closed
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4
5