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Altimmune
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Overview Fund Activity

178 hedge funds and large institutions have $139M invested in Altimmune in 2025 Q2 according to their latest regulatory filings, with 39 funds opening new positions, 70 increasing their positions, 39 reducing their positions, and 29 closing their positions.

Holders
178
Holders Change
+5
Holders Change %
+2.89%
% of All Funds
2.39%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
39
Increased
70
Reduced
39
Closed
29
Calls
$21.9M
Puts
$19.3M
Net Calls
+$2.63M
Net Calls Change
-$542K

Top Buyers

1
CM
1
Caption Management
Oklahoma
$3.8M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$20M
3
Federated Hermes
3
Federated Hermes
Pennsylvania
$3.54M
4
Citadel Advisors
4
Citadel Advisors
Florida
$2.03M
5
Bank of America
5
Bank of America
North Carolina
$2.77M

Top Sellers

1
BG
1
Bellevue Group
Switzerland
$0
2
Ameriprise
2
Ameriprise
Minnesota
$441K
3
Marshall Wace
3
Marshall Wace
United Kingdom
$85.5K
4
Millennium Management
4
Millennium Management
New York
$303K
5
Two Sigma Investments
5
Two Sigma Investments
New York
$1.69M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$24.7M 6,372,560 +237,330 +4%
Vanguard Group
2
Vanguard Group
Pennsylvania
$20M 5,167,124 +759,662 +17%
State Street
3
State Street
Massachusetts
$10.7M 2,753,638 -637,933 -19%
TCM
4
Tang Capital Management
California
$10.6M 2,750,000 – –
Geode Capital Management
5
Geode Capital Management
Massachusetts
$7.49M 1,934,880 +228,995 +13%
KCM
6
Knoll Capital Management
Florida
$4.34M 1,121,524 – –
CM
7
Caption Management
Oklahoma
$3.8M 980,781 +941,917 +2,424%
Federated Hermes
8
Federated Hermes
Pennsylvania
$3.54M 915,458 +727,731 +388%
UBS Group
9
UBS Group
Switzerland
$3.43M 886,918 +98,753 +13%
Morgan Stanley
10
Morgan Stanley
New York
$3.23M 835,407 +178,160 +27%
Bank of America
11
Bank of America
North Carolina
$2.77M 716,019 +435,467 +155%
Northern Trust
12
Northern Trust
Illinois
$2.48M 640,346 +3,640 +0.6%
Citadel Advisors
13
Citadel Advisors
Florida
$2.03M 523,461 +523,461 New
Goldman Sachs
14
Goldman Sachs
New York
$1.93M 499,238 +108,903 +28%
Group One Trading
15
Group One Trading
Illinois
$1.82M 469,389 +212,779 +83%
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$1.73M 447,470 -44,999 -9%
Two Sigma Investments
17
Two Sigma Investments
New York
$1.69M 437,286 -710,530 -62%
Fidelity Investments
18
Fidelity Investments
Massachusetts
$1.56M 401,843 +381,040 +1,832%
BWCS
19
Beirne Wealth Consulting Services
Connecticut
$1.33M 342,458 +48,000 +16%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$1.28M 332,016 +143,016 +76%
Barclays
21
Barclays
United Kingdom
$1.13M 292,095 +104,633 +56%
VF
22
Virtu Financial
New York
$1.04M 267,778 +267,778 New
SRL
23
Scientech Research LLC
New Jersey
$984K 254,312 +254,312 New
Wellington Management Group
24
Wellington Management Group
Massachusetts
$975K 251,866 +26,912 +12%
CIAM
25
Caitong International Asset Management
Hong Kong
$927K 239,630 +238,693 +25,474%
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