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 %
CGIM
51
Cannon Global Investment Management
Florida
$143K +$143K +47,500 New
Wolverine Trading
52
Wolverine Trading
Illinois
$142K +$82.9K +26,474 +140%
Verition Fund Management
53
Verition Fund Management
Connecticut
$137K +$137K +45,451 New
DADC
54
D.A. Davidson & Co
Montana
$121K +$3.62K +1,200 +3%
Charles Schwab
55
Charles Schwab
California
$121K +$670 +222 +0.6%
KWA
56
Kingswood Wealth Advisors
California
$110K -$29.8K -10,000 -21%
JGC
57
J. Goldman & Co
New York
$91K -$815K -270,000 -90%
TRCT
58
Tower Research Capital (TRC)
New York
$83.2K -$16K -5,312 -16%
Royal Bank of Canada
59
Royal Bank of Canada
Ontario, Canada
$75K -$651K -214,432 -90%
AWM
60
Apollon Wealth Management
South Carolina
$71K +$71K +23,500 New
FFA
61
Farther Finance Advisors
California
$70.3K – – –
American Century Companies
62
American Century Companies
Missouri
$68.6K -$198K -65,409 -74%
Two Sigma Investments
63
Two Sigma Investments
New York
$67.2K +$1.85K +611 +3%
TC
64
TwinBeech Capital
New York
$64.7K +$64.7K +21,434 New
PCM
65
Prelude Capital Management
New York
$64.4K +$33.9K +11,240 +112%
CM
66
Capula Management
Cayman Islands
$63.8K +$63.8K +21,126 New
XT
67
XTX Topco
Cayman Islands
$59.1K +$25.3K +8,374 +75%
EGM
68
Engineers Gate Manager
New York
$58.3K +$58.3K +19,288 New
Capstone Investment Advisors
69
Capstone Investment Advisors
New York
$55.6K +$55.6K +18,420 New
CFM
70
Catalyst Funds Management
Australia
$54.2K +$54.2K +17,953 New
BFM
71
Boothbay Fund Management
New York
$44K – – –
Raymond James Financial
72
Raymond James Financial
Florida
$41.8K +$9.53K +3,156 +30%
UBV
73
United Bank (Virginia)
Virginia
$41.8K +$41.8K +13,830 New
Hudson Bay Capital Management
74
Hudson Bay Capital Management
Connecticut
$40.2K +$40.2K +13,320 New
YIH
75
Y-Intercept (HK)
Hong Kong
$38K +$38K +12,583 New
1 2
3
4 5