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Video: Compound Annual Growth Rate (CAGR) Definition
ALT Historical Price Range
Date Open High Low Close Volume
06/01/2026 $3.02 $3.04 $2.93 $3.01 2.29M
06/02/2026 $2.99 $3.00 $2.90 $2.90 3.14M
06/03/2026 $2.93 $2.95 $2.84 $2.87 3.03M
06/04/2026 $2.84 $3.00 $2.84 $2.92 2.82M
06/05/2026 $2.92 $2.92 $2.69 $2.71 3.12M
About Altimmune
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.
ALT historical stock prices picture
Altimmune (ALT) has the following price history information. Looking back at ALT historical stock prices for the last five trading days, on June 01, 2026, ALT opened at $3.02, traded as high as $3.04 and as low as $2.93, and closed at $3.01. Trading volume was a total of 2.29M shares. On June 02, 2026, ALT opened at $2.99, traded as high as $3.00 and as low as $2.90, and closed at $2.90. Trading volume was a total of 3.14M shares. On June 03, 2026, ALT opened at $2.93, traded as high as $2.95 and as low as $2.84, and closed at $2.87. Trading volume was a total of 3.03M shares. On June 04, 2026, ALT opened at $2.84, traded as high as $3.00 and as low as $2.84, and closed at $2.92. Trading volume was a total of 2.82M shares. On June 05, 2026, ALT opened at $2.92, traded as high as $2.92 and as low as $2.69, and closed at $2.71. Trading volume was a total of 3.12M shares.

ALT Historical Stock Prices By Date:

ALT historical cagr picture

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Altimmune shares, starting with a $10,000 purchase of ALT, and working forward through the historical stock price information to today.

Growth of $10,000.00
Without Dividends Reinvested
Start date: 05/30/2017
End date: 06/05/2026
Start price/share: $125.10
End price/share: $2.71
Dividends collected/share: $0.00
Total return: -97.83%
Average Annual Total Return: -34.61%
Starting investment: $10,000.00
Ending investment: $216.55
Years: 9.02
ALT Historical Closing Prices
Date Close
06/01/2026$3.01
06/02/2026$2.90
06/03/2026$2.87
06/04/2026$2.92
06/05/2026$2.71
Healthcare Historical Prices
ALT is categorized under the Healthcare sector; below are some other companies in the same sector:

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Also explore: ALT shares outstanding history

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