Massivemarkets

ALT

Altimmune, Inc. Common Stock

Nasdaq · usd

$2.07-0.06 (-2.59%)
As of 2:23:36 PM EDT on Oct 26, 2026 · 15-minute delayed

Altimmune, Inc. Common Stock (ALT) trades at $2.07 (-2.59%) as of 2:23:36 PM EDT on Oct 26, 2026, -32.35% over the past month. Market cap is $412.38M, with 10.5 days to cover in short interest.

Stock performance

How Altimmune, Inc. Common Stock (ALT) stock has performed from one day to one year, with its 52-week range.

-1.90%
-$0.04 over 1D
$2.07$2.10$2.14$2.174:05 AM10:20 AM11:40 AM1:00 PM2:20 PM$2.06
1D
-2.36%
1W
-7.17%
1M
-32.35%
YTD
-42.66%
1Y
-50.00%
52-wk range
$2.06 – $6.44

Key statistics

Today's trading snapshot for ALT: day range, open, previous close, volume and market cap.

Day range
$2.06 – $2.15
Open
$2.13
Prev close
$2.12
Volume
1.87M
Market cap
$412.38M
Shares out
194.52M

Valuation and profitability ratios: P/E, P/S, ROE

Valuation and profitability ratios for Altimmune, Inc. Common Stock: P/E, P/S, P/B, ROE and more.

P/E
—
P/S
13302.50
P/B
0.87
P/FCF
—
ROE
-19.4%
ROA
-17.5%
Debt/Equity
0.07
Div yield
0.00%

As of Oct 23, 2026

8-K filings

Material corporate events Altimmune, Inc. Common Stock has disclosed to the SEC on Form 8-K.

  • Executive officer appointmentSep 29, 2026

    On September 24, 2026, the Board of Directors (the "Board") of Altimmune, Inc. (the "Company") appointed Richard Menziuso as the Company's Vice President, Global Controller and Principal Accounting Officer effective as of September 29, 2026.

  • On July 28, 2026, Altimmune, Inc. (the "Company") issued a press release announcing the positive topline results from the RECLAIM Phase 2 trial evaluating pemvidutide 2.4 mg dose, an investigational balanced glucagon/GLP-1 dual receptor agonist, in patients with moderate to severe alcohol use disorder (AUD). The trial met its primary endpoint with a highly statistically significant reduction in heavy drinking days per week (HDD) versus placebo, with positive results across important secondary endpoints, including a two-level reduction in the World Health Organization Risk Drinking Level and zero HDDs, both of which are U.S. Food and Drug Administration (FDA) registrational endpoints, as well as a reduction in phosphatidyl ethanol levels. A generally favorable safety and tolerability profile was observed in the trial.

  • Lease agreementJun 16, 2026

    The Company has entered into an office lease agreement for the New Jersey headquarters where the Company will make rent payments of approximately $300,000 annually for the 5-year lease term.

  • Public offeringApr 24, 2026

    On April 22, 2026, Altimmune, Inc. entered into an underwriting agreement pursuant to which the Company agreed to issue and sell (i) 64,250,000 shares of the Company's common stock and accompanying common stock warrants at a public offering price of $3.00 per share and (ii) pre-funded warrants to purchase up to 10,750,000 shares of Common Stock at a public offering price of $2.999 per Pre-Funded Warrant. The Offering closed on April 24, 2026.

  • Charter amendmentApr 16, 2026

    On April 16, 2026, Altimmune, Inc. (the "Company") amended its Amended and Restated Certificate of Incorporation (the "Certificate of Incorporation") by filing a Certificate of Amendment with the Secretary of State of Delaware. The Certificate of Amendment reflected an amendment to increase the number of authorized shares of common stock from 200,000,000 to 400,000,000.

Dividend history and stock splits

Altimmune, Inc. Common Stock's recent dividend payments and stock splits.

Dividends

No recent dividends.

Splits

  • 1-for-30Sep 14, 2018
  • 1-for-10May 4, 2017
  • 1-for-50Jul 25, 2007

ALT short interest

How heavily ALT is shorted: shares short, days to cover and average daily volume.

Days to cover
10.5
Short interest
46.08M
Avg volume
4.37M

As of · reported to FINRA twice monthly.

ALT news

The latest news and headlines about Altimmune, Inc. Common Stock (ALT).

Frequently asked questions

What is the Altimmune, Inc. Common Stock (ALT) stock price today?

Altimmune, Inc. Common Stock (ALT) is trading at $2.07 (-2.59% on the day) as of 2:23:36 PM EDT on Oct 26, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.

What is Altimmune, Inc. Common Stock?

Altimmune Inc is a late clinical-stage biopharmaceutical company developing therapies for patients with serious liver diseases. The Company's key candidate, pemvidutide, is a dual-action therapy targeting both glucagon and GLP-1 receptors in a balanced 1:1 ratio in development…

What is the short interest in ALT?

As of Sep 30, 2026, ALT has 46.08M shares short and 10.5 days to cover.

What exchange is ALT listed on?

Altimmune, Inc. Common Stock (ALT) trades on Nasdaq in USD, in the PHARMACEUTICAL PREPARATIONS industry.

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