sec filing
AL
NASDAQ · ALT
Altimmune, Inc.
Healthcare · Biotechnology
$3.35
Down-$0.06 (-1.79%)
Updated Sep 10, 2026, 9:58 PM
SID Score
4.5/10
Composite research score
Smart Money
—
Institutional and insider signal
- Market cap
- 380.39M
- P/E ratio
- -4.59
- Dividend yield
- 0.00%
- 52-week range
- $2.56 – $4.04
- Volume
- 3.08M
- Avg. volume
- 4.9M
Price performance
ALT price history
1M range · 20 trading sessions · Daily adjusted prices
ALT closed at $3.35 after 20 trading sessions, up 14.33% for the selected period.
- Last close
- $3.35
- Period change
- +14.33%
- Period low
- $2.88
- Period high
- $3.42
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Sep 9, 2026 | $3.35 | $3.425 | $3.291 | $3.35 | 3.08M |
| Sep 8, 2026 | $3.46 | $3.5499 | $3.34 | $3.36 | 3.59M |
| Sep 4, 2026 | $3.28 | $3.43 | $3.25 | $3.42 | 4.87M |
| Sep 3, 2026 | $3.30 | $3.32 | $3.19 | $3.23 | 2.55M |
| Sep 2, 2026 | $3.10 | $3.34 | $3.10 | $3.28 | 7.47M |
| Sep 1, 2026 | $3.07 | $3.095 | $3.02 | $3.09 | 2.36M |
| Aug 31, 2026 | $3.08 | $3.135 | $3.06 | $3.11 | 2.22M |
| Aug 28, 2026 | $3.21 | $3.23 | $3.06 | $3.11 | 3.19M |
| Aug 27, 2026 | $3.19 | $3.25 | $3.1301 | $3.24 | 2.28M |
| Aug 26, 2026 | $3.20 | $3.20 | $3.09 | $3.15 | 4.05M |
| Aug 25, 2026 | $3.14 | $3.225 | $3.11 | $3.20 | 3.82M |
| Aug 24, 2026 | $3.13 | $3.13 | $3.025 | $3.11 | 2.72M |
| Aug 21, 2026 | $2.98 | $3.24 | $2.95 | $3.11 | 6.16M |
| Aug 20, 2026 | $3.07 | $3.08 | $2.92 | $2.95 | 4.68M |
| Aug 19, 2026 | $3.04 | $3.20 | $3.005 | $3.12 | 10.82M |
| Aug 18, 2026 | $2.99 | $3.03 | $2.96 | $2.97 | 2.47M |
| Aug 17, 2026 | $2.94 | $3.02 | $2.90 | $3.00 | 4.06M |
| Aug 14, 2026 | $2.95 | $2.97 | $2.86 | $2.94 | 3.07M |
| Aug 13, 2026 | $2.95 | $2.96 | $2.84 | $2.88 | 4.11M |
| Aug 12, 2026 | $3.05 | $3.20 | $2.92 | $2.93 | 6.05M |
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