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Atossa Therapeutics
ATOS
ATOS
33 hedge funds and large institutions have $6.52M invested in Atossa Therapeutics in 2026 Q1 according to their latest regulatory filings, with 7 funds opening new positions, 12 increasing their positions, 11 reducing their positions, and 39 closing their positions.
New
Increased
Maintained
Reduced
Closed
13.26% more ownership
Funds ownership: 1.13% → 14.4% (+13%)
9% more repeat investments, than reductions
Existing positions increased: 12 | Existing positions reduced: 11
20% less call options, than puts
Call options by funds: $459K | Put options by funds: $572K
50% less capital invested
Capital invested by funds: $13M → $6.52M (-$6.44M)
51% less funds holding
Funds holding: 67 → 33 (-34)
82% less first-time investments, than exits
New positions opened: 7 | Existing positions closed: 39
Holders
33
Holders Change
-34
Holders Change %
-50.75%
% of All Funds
0.41%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
7
Increased
12
Reduced
11
Closed
39
Calls
$459K
Puts
$572K
Net Calls
-$113K
Net Calls Change
-$218K
Top Buyers
| 1 |
UBS Group
Zurich,
Switzerland
|
+$418K |
| 2 |
Morgan Stanley
New York
|
+$76.6K |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
+$35.5K |
| 4 |
Ameriprise
Minneapolis,
Minnesota
|
+$15.2K |
| 5 |
Jones Financial Companies
Des Peres,
Missouri
|
+$12.8K |
