Q3 2025 13F Holders as of 9/30/2025
-
Type / Class
-
Equity / Common Stock
-
Shares outstanding
-
80.7M
-
Number of holders
-
155
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Total 13F shares, excl. options
-
41.5M
-
Shares change
-
+3.83M
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Total reported value, excl. options
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$156M
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Value change
-
+$14.3M
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Put/Call ratio
-
0.73
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Number of buys
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76
-
Number of sells
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-89
-
Price
-
$3.77
Significant Holders of Altimmune, Inc. - Common Stock (ALT) as of Q3 2025
229 filings reported holding ALT - Altimmune, Inc. - Common Stock as of Q3 2025.
Altimmune, Inc. - Common Stock (ALT) has 155 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 41.5M shares
of 80.7M outstanding shares and own 51.39% of the company stock.
Largest 10 shareholders include VANGUARD GROUP INC (6.37M shares), BlackRock, Inc. (6.37M shares), STATE STREET CORP (3.6M shares), TANG CAPITAL MANAGEMENT LLC (2.13M shares), GEODE CAPITAL MANAGEMENT, LLC (2.02M shares), TWO SIGMA INVESTMENTS, LP (2M shares), MORGAN STANLEY (1.49M shares), TWO SIGMA ADVISERS, LP (1.43M shares), SUSQUEHANNA INTERNATIONAL GROUP, LLP (1.37M shares), and CITADEL ADVISORS LLC (1.28M shares).
This table shows the top 155 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.