Altimmune Inc (ALT)
$2.04 -4.67% Close Oct 30, 2026 Live
Altimmune stock today
Altimmune closed at $2.04 on October 30, 2026, down 4.67% on the day. Over the past year it returned -49.9% with dividends reinvested, against +12.4% for the S&P 500. Its market value is $397 million.
$2.00$4.00$6.00
NovJan 2026MarMayJulSep
| Period | ALT | S&P 500 (SPY) |
|---|---|---|
| 1 month | -28.7% | -0.9% |
| 3 months | -31.5% | +2.1% |
| Year to date | -43.5% | +11.7% |
| 1 year | -49.9% | +12.4% |
| 3 years | -14.6% | +88.5% |
| 5 years | -81.1% | +76.0% |
Key statistics
- Market value
- $397M
- 52-week range
- $2.04 to $6.18
- Next report
- Nov 5, 2026 (estimated)
About Altimmune
Altimmune develops immunotherapy treatments for infectious diseases and oncology.
Sector: Health Care
More on Altimmune
- Financials: revenue, earnings and segmentsRevenue +105% in the year to Dec 2025
- Returns: what $1,000 became$1,000 ten years ago is $9.53 today
No forecast, no recommendation. This page describes Altimmune Inc from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.