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Altimmune
ALT

Overview Fund Activity

179 hedge funds and large institutions have $145M invested in Altimmune in 2025 Q2 according to their latest regulatory filings, with 39 funds opening new positions, 71 increasing their positions, 39 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
179
Holders Change
+6
Holders Change %
+3.47%
% of All Funds
2.4%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
39
Increased
71
Reduced
39
Closed
31
Calls
$26.2M
Puts
$22.6M
Net Calls
+$3.63M
Net Calls Change
+$458K

Top Buyers

1
CM
Caption Management
Oklahoma
$3.8M
2
Vanguard Group
Vanguard Group
Pennsylvania
$20M
3
Federated Hermes
Federated Hermes
Pennsylvania
$3.54M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
$6.27M
5
Citadel Advisors
Citadel Advisors
Florida
$2.03M

Top Sellers

1
BG
Bellevue Group
Switzerland
$0
2
Ameriprise
Ameriprise
Minnesota
$441K
3
Schroder Investment Management Group
Schroder Investment Management Group
United Kingdom
$0
4
Marshall Wace
Marshall Wace
United Kingdom
$85.5K
5
Millennium Management
Millennium Management
New York
$303K
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$24.7M +$918K +237,330 +4%
Vanguard Group
2
Vanguard Group
Pennsylvania
$20M +$2.94M +759,662 +17%
State Street
3
State Street
Massachusetts
$10.7M -$2.47M -637,933 -19%
TCM
4
Tang Capital Management
California
$10.6M – – –
Geode Capital Management
5
Geode Capital Management
Massachusetts
$7.49M +$886K +228,995 +13%
Susquehanna International Group
6
Susquehanna International Group
Pennsylvania
$6.27M +$2.1M +543,683 +51%
KCM
7
Knoll Capital Management
Florida
$4.34M – – –
CM
8
Caption Management
Oklahoma
$3.8M +$3.65M +941,917 +2,424%
Federated Hermes
9
Federated Hermes
Pennsylvania
$3.54M +$2.82M +727,731 +388%
UBS Group
10
UBS Group
Switzerland
$3.43M +$382K +98,753 +13%
Morgan Stanley
11
Morgan Stanley
New York
$3.23M +$689K +178,160 +27%
Bank of America
12
Bank of America
North Carolina
$2.77M +$1.69M +435,467 +155%
Northern Trust
13
Northern Trust
Illinois
$2.48M +$14.1K +3,640 +0.6%
Citadel Advisors
14
Citadel Advisors
Florida
$2.03M +$2.03M +523,461 New
Goldman Sachs
15
Goldman Sachs
New York
$1.93M +$421K +108,903 +28%
Group One Trading
16
Group One Trading
Illinois
$1.82M +$823K +212,779 +83%
Dimensional Fund Advisors
17
Dimensional Fund Advisors
Texas
$1.73M -$174K -44,999 -9%
Two Sigma Investments
18
Two Sigma Investments
New York
$1.69M -$2.75M -710,530 -62%
Fidelity Investments
19
Fidelity Investments
Massachusetts
$1.56M +$1.47M +381,040 +1,832%
BWCS
20
Beirne Wealth Consulting Services
Connecticut
$1.33M +$186K +48,000 +16%
Bank of New York Mellon
21
Bank of New York Mellon
New York
$1.28M +$553K +143,016 +76%
Barclays
22
Barclays
United Kingdom
$1.13M +$404K +104,633 +56%
VF
23
Virtu Financial
New York
$1.04M +$1.04M +267,778 New
SRL
24
Scientech Research LLC
New Jersey
$984K +$984K +254,312 New
Wellington Management Group
25
Wellington Management Group
Massachusetts
$975K +$104K +26,912 +12%
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