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NASDAQ · Biotechnology · USD

Altimmune, Inc. (ALT) Stock Analysis

Altimmune, Inc. (ALT) is a Biotechnology stock listed on NASDAQ and quoted in US Dollar.

ALT

$3.42

+$0.19 (+5.88%)

Sep 4, 2026 · Market close

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Price History

Hover for the daily close. The dotted line marks the period open.

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ALT Key Statistics

As of Sep 4, 2026
Trading
Open
$3.28
Previous Close
$3.23
Day's Range
3.25–3.43
52-Week Range
2.56–6.44
Volume
4.87M
BetaHow much the share price moves relative to the wider market. 1.0 moves in line with it; above 1.0 swings more, below 1.0 less.
0.18
Valuation
Market Cap
$665.25M
P/E Ratio
unprofitable
PEG RatioThe P/E ratio divided by the expected earnings growth rate. It puts a high P/E in the context of how fast profits are growing.
32.62
EPS (ttm)Profit attributable to each share over the last twelve months.
−0.76
Financials (FY)
Revenue (FY)
$41.00K+105.00%
Net Income (FY)
−$88.09M
Profit marginThe share of revenue left as profit after all costs and taxes.
0.00%
Shares OutstandingThe total number of shares held by all investors. Market value is this figure multiplied by the share price.
194.52M
1-Year Return
−3.93%
Dividend and dates
Earnings Date
November 5, 2026estimated
Avg Volume
4.46M

Only metrics the company reports are shown. Data provided by Yahoo Finance via yfinance. Updated daily.

ALT Stock Return by Calendar Year

Calendar-year returns computed from daily closing prices. Partial years are shown muted and marked with an asterisk.

YearReturn
2026 (partial year)−5.26%
2025−49.93%
2024−35.91%
2023−31.61%
2022+79.59%
2021−18.79%
2020+496.83%
2019−8.25%
2018−96.55%
2017 (partial year)−55.18%

As of September 4, 2026.

ALT Revenue and Earnings by Fiscal Year

FY ends December
Fiscal yearRevenueNet incomeNet margin
2025$41.00K−$88.09M−214861.0%
2024$20.00K−$95.06M−475295.0%
2023$426.00K−$88.45M−20762.2%
2022−$68.00K−$84.71M124577.9%
Fiscal yearRevenueGross profitOperating incomeNet incomeNet margin
2025$41.00K—−$94.49M−$88.09M−214861.0%
2024$20.00K—−$103.17M−$95.06M−475295.0%
2023$426.00K—−$83.51M−$88.45M−20762.2%
2022−$68.00K—−$87.74M−$84.71M124577.9%

Annual figures as reported, in the company's reporting currency. As of December 31, 2025.

ALT Valuation vs Biotechnology Median

Median of 656 stocks
MetricALTBiotechnology medianvs median
Profit margin0.00%0.00%0.0 pts above

Medians across 656 Biotechnology stocks that report the metric. Medians, not averages, so one outlier cannot move them. As of September 4, 2026.

Recent News

All 14 articles ↓

News provided by third-party sources. Not financial advice.

Analysis

Data-derived

Company Overview

Altimmune, Inc. (ALT) carries a market capitalisation of $665.25M. The company sits in the Healthcare sector, in the Biotechnology industry. The company reports 57 employees.

ALT last closed at $3.42 on September 4, 2026. That is +$0.19 (+5.88%) against the previous close. The 52-week range on file runs from $2.56 to $6.44. The latest close sits 33.59% above that 52-week low.

Financial Health

In fiscal 2025, Altimmune, Inc. reported revenue of $41.00K. Against the prior fiscal year total of $20.00K, that is a change of +105.00%. The same year closed with a net loss of $88.09M. The reported profit margin is 0%. Earnings per share on a trailing basis come to −0.76.

Across the 4 fiscal years on file, revenue moves from −$68.00K in 2022 to $41.00K in 2025. Of those 4 years, 0 report positive net income.

Valuation Assessment

No trailing P/E applies: the last reported earnings figure is negative. The PEG ratio, which sets the P/E against expected earnings growth, reads 32.62.

Beta against the wider market is reported at 0.18. Daily returns over the trailing 9 years annualize to a volatility of 146.04%. The trailing one-year price return is −3.93%. Measured over 5 years, that is −26.94% a year compounded.

Growth & Income

The record shows no dividend for ALT.

So far in 2026 the price is −5.26%. Across the complete calendar years on file, 2020 returned +496.83% and 2018 returned −96.55%. Of the 8 complete calendar years on file, 2 finished higher.

Peer Comparison

Altimmune, Inc. (ALT) operates in the Biotechnology industry. Here is how it compares to its closest peers by market capitalization:

Company Ticker Market Cap P/E Ratio
Altimmune, Inc. ALT $665.25M —
Vertex Pharmaceuticals Incorporated VRTX $138.42B 32.5
Regeneron Pharmaceuticals, Inc. REGN $85.22B 20.5
argenx SE ARGX $64.25B 40.1

The Biotechnology industry average P/E ratio is 12.6x. Altimmune, Inc. has no P/E ratio because it is not currently profitable.

Every figure above is read from this page's own data on each nightly rebuild. Informational only, not financial advice. As of September 4, 2026.

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About Altimmune, Inc.

Altimmune, Inc., a late clinical stage biopharmaceutical company, focuses on developing novel therapies for serious liver diseases. Its lead product candidate is pemvidutide, a GLP-1/glucagon dual receptor agonist, which is in Phase 3 clinical trial for the treatment of metabolic dysfunction-associated steatohepatitis, alcohol use disorder, and alcohol-associated liver disease. The company was founded in 1997 and is headquartered in Gaithersburg, Maryland.

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