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Atossa Therapeutics
ATOS

Overview Fund Activity

82 hedge funds and large institutions have $17.5M invested in Atossa Therapeutics in 2025 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 13 increasing their positions, 22 reducing their positions, and 28 closing their positions.

Holders
82
Holders Change
-1
Holders Change %
-1.2%
% of All Funds
1.1%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
28
Increased
13
Reduced
22
Closed
28
Calls
$174K
Puts
$61K
Net Calls
+$113K
Net Calls Change
+$48K

Top Buyers

1
Ameriprise
1
Ameriprise
Minnesota
$2.47M
2
Millennium Management
2
Millennium Management
New York
$1.7M
3
Jane Street
3
Jane Street
New York
$381K
4
YIH
4
Y-Intercept (HK)
Hong Kong
$321K
5
Qube Research & Technologies (QRT)
5
Qube Research & Technologies (QRT)
United Kingdom
$346K

Top Sellers

1
BlackRock
1
BlackRock
New York
$1.78M
2
Geode Capital Management
2
Geode Capital Management
Massachusetts
$1.08M
3
State Street
3
State Street
Massachusetts
$429K
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$4.84M
5
Northern Trust
5
Northern Trust
Illinois
$219K
Name Market Value Shares Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$4.84M 5,833,127 -752,785 -11%
Ameriprise
2
Ameriprise
Minnesota
$2.47M 2,973,205 +2,973,205 New
BlackRock
3
BlackRock
New York
$1.78M 2,148,010 -7,477,355 -78%
Millennium Management
4
Millennium Management
New York
$1.7M 2,047,535 +2,047,535 New
Renaissance Technologies
5
Renaissance Technologies
New York
$1.5M 1,812,251 -42,850 -2%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$1.08M 1,300,379 -1,545,413 -54%
State Street
7
State Street
Massachusetts
$429K 516,571 -1,210,519 -70%
Jane Street
8
Jane Street
New York
$381K 458,729 +458,729 New
Qube Research & Technologies (QRT)
9
Qube Research & Technologies (QRT)
United Kingdom
$346K 416,374 +325,340 +357%
UBS Group
10
UBS Group
Switzerland
$342K 412,462 -42,924 -9%
YIH
11
Y-Intercept (HK)
Hong Kong
$321K 386,334 +386,334 New
Goldman Sachs
12
Goldman Sachs
New York
$278K 334,953 +147,026 +78%
Northern Trust
13
Northern Trust
Illinois
$219K 263,377 -710,621 -73%
Connor, Clark & Lunn Investment Management (CC&L)
14
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$165K 198,668 +9,349 +5%
Squarepoint
15
Squarepoint
New York
$150K 181,108 -297,891 -62%
Morgan Stanley
16
Morgan Stanley
New York
$134K 160,912 -123,275 -43%
ACM
17
Aster Capital Management
United Arab Emirates
$120K 144,853 +144,853 New
JG
18
Jain Global
New York
$102K 123,054 +123,054 New
Bank of America
19
Bank of America
North Carolina
$82.7K 99,601 +35,629 +56%
HF
20
HRT Financial
New York
$78K 95,094 +95,094 New
PAS
21
Point72 Asia (Singapore)
Singapore
$73.2K 88,212 +88,212 New
Citadel Advisors
22
Citadel Advisors
Florida
$72.1K 86,918 +86,918 New
HSBC Holdings
23
HSBC Holdings
United Kingdom
$68.6K 77,933 +63,151 +427%
Charles Schwab
24
Charles Schwab
California
$66.4K 80,000 -342,582 -81%
CFM
25
Catalyst Funds Management
Australia
$49.2K 59,300 +59,300 New
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