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Altimmune

173 hedge funds and large institutions have $191M invested in Altimmune in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 54 increasing their positions, 52 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

less funds holding

Funds holding:

7.34% less ownership

Funds ownership: 56.87%49.53% (-7.3%)

14% less first-time investments, than exits

New positions opened: 25 | Existing positions closed: 29

35% less capital invested

Capital invested by funds: $292M → $191M (-$101M)

Holders
173
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$13.5M
Puts
$10.3M
Net Calls
Net Calls Change

Top Sellers

1 -$19.1M
2 -$4.87M
3 -$3.28M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$2.05M
5
Morgan Stanley
Morgan Stanley
New York
-$1.32M
Name Holding Trade Value Shares
Change
Change in
Stake
51
$399K
52
$393K
53
$359K
54
$357K
55
$349K
56
$340K
57
$333K
58
$332K
59
$297K
60
$275K
61
$262K
62
$253K
63
$247K
64
$240K
65
$234K
66
$219K
67
$205K
68
$194K
69
$191K
70
$183K
71
$175K
72
$174K
73
$170K
74
$158K
75
$158K