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Atossa Therapeutics
ATOS

Overview Fund Activity

83 hedge funds and large institutions have $19.1M invested in Atossa Therapeutics in 2025 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 18 increasing their positions, 29 reducing their positions, and 12 closing their positions.

Holders
83
Holders Change
-3
Holders Change %
-3.49%
% of All Funds
1.13%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
10
Increased
18
Reduced
29
Closed
12
Calls
$123K
Puts
$58K
Net Calls
+$65K
Net Calls Change
+$4K

Top Buyers

1
Squarepoint
1
Squarepoint
New York
$322K
2
Renaissance Technologies
2
Renaissance Technologies
New York
$1.25M
3
Susquehanna International Group
3
Susquehanna International Group
Pennsylvania
$296K
4
NL
4
Nuveen LLC
North Carolina
$115K
5
Charles Schwab
5
Charles Schwab
California
$284K

Top Sellers

1
UBS Group
1
UBS Group
Switzerland
$306K
2
Citadel Advisors
2
Citadel Advisors
Florida
$0
3
VF
3
Virtu Financial
New York
$0
4
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$80K
5
Jane Street
5
Jane Street
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
TRCT
51
Tower Research Capital (TRC)
New York
$9.22K 13,697 +253 +2%
FC
52
Farringdon Capital
United Kingdom
$8.96K 13,313 +13,313 New
Raymond James Financial
53
Raymond James Financial
Florida
$8.62K 12,815 -6,000 -32%
AIP
54
Ameritas Investment Partners
Nebraska
$8.34K 12,392 – –
Wolverine Trading
55
Wolverine Trading
Illinois
$8.16K 11,716 +11,716 New
Legal & General Group
56
Legal & General Group
United Kingdom
$7.96K 11,829 – –
JLBC
57
J.L. Bainbridge & Co
Florida
$7.48K 11,121 – –
FDCDDQ
58
Federation des caisses Desjardins du Quebec
Quebec, Canada
$7.13K 10,600 – –
Janney Montgomery Scott
59
Janney Montgomery Scott
Pennsylvania
$7K 10,000 – –
FFN
60
Focus Financial Network
Minnesota
$6.83K 10,150 +10,150 New
Mariner
61
Mariner
Kansas
$6.8K 10,104 +10,104 New
EAM
62
Evanson Asset Management
California
$6.73K 10,000 – –
Fidelity Investments
63
Fidelity Investments
Massachusetts
$6.25K 9,291 -2,002 -18%
California State Teachers Retirement System (CalSTRS)
64
California State Teachers Retirement System (CalSTRS)
California
$6.17K 9,165 – –
Osaic Holdings
65
Osaic Holdings
Arizona
$5.7K 8,500 -50 -0.6%
BNP Paribas Financial Markets
66
BNP Paribas Financial Markets
France
$5.66K 8,416 -7,567 -47%
NA
67
NewEdge Advisors
Louisiana
$3.37K 5,000 – –
AB
68
Amalgamated Bank
New York
$3K 4,376 – –
Simplex Trading
69
Simplex Trading
Illinois
$2K 4,140 +3,531 +580%
SCM
70
Sterling Capital Management
North Carolina
$1.28K 1,904 -1,675 -47%
HI
71
Harbour Investments
Wisconsin
$1.15K 1,711 – –
SS
72
SBI Securities
Japan
$1.06K 1,575 +10 +0.6%
TWC
73
TD Waterhouse Canada
Ontario, Canada
$1.01K 1,555 – –
Carson Wealth (CWM LLC)
74
Carson Wealth (CWM LLC)
Nebraska
$1K 1,320 +1,293 +4,789%
Nisa Investment Advisors
75
Nisa Investment Advisors
Missouri
$707 1,050 +938 +838%
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