ALT Shares Outstanding History



Below is a table of the ALT shares outstanding history going back to 5/5/2017:

Date ALT Shares Outstanding
5/5/2017515683
8/8/2017514097
11/9/2017521755
3/30/2018742370
5/14/2018860069
8/14/20181.28M
9/14/20181.28M
11/13/20188.76M
3/27/201913.45M
5/13/201913.45M
8/13/201915.34M
8/9/201941.66M
11/12/201915.34M
3/26/202015.36M
5/13/202015.53M
8/7/202032.90M
11/6/202033.07M
2/23/202137.15M
5/14/202138.40M
11/5/202139.74M
3/11/202243.22M
5/10/202243.22M
11/4/202249.16M
5/5/202349.29M
8/4/202352.69M
11/3/202353.73M
3/22/202470.90M
5/3/202470.90M
8/2/202471.07M
11/8/202471.12M
2/24/202577.01M
5/9/202581.11M
8/8/202588.26M
10/31/2025104.25M
2/27/2026130.07M

Also see: ALT Market Cap History
ALT YTD Return
ALT Historical Shares Outstanding:
+87.18% CAGR
ALT Historical Shares Outstanding: +87.18% CAGR

Mouse over chart for data details
5/5/2017 ...2/27/2026
Altimmune, Inc. is a clinical-stage biopharmaceutical company focused on developing treatments for obesity and liver diseases. Co.'s lead product candidate, pemvidutide, is a GLP-1/glucagon dual receptor agonist that is being developed for the treatment of obesity and metabolic dysfunction-associated steatohepatitis (MASH). Co. has completed the MOMENTUM Phase II obesity trial and is being studied in the IMPACT Phase IIb MASH trial. It is also developing HepTcell, an immunotherapeutic product candidate for patients chronically infected with the hepatitis B virus (HBV). Co. has completed the enrollment in its Phase II clinical trial of HepTcell. We show 35 historical shares outstanding datapoints in our coverage of ALT's shares outstanding history.

Understanding the changing numbers of ALT shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like ALT versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching ALT by allowing them to research ALT shares outstanding history as well as any other stock in our coverage universe.
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Altimmune (ALT) is categorized under the Healthcare sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:

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