ALT (Altimmune Inc.) historical data
STOCKListed1-minute bars
| Symbol | ALT |
|---|---|
| Name | Altimmune Inc. |
| Exchange | NASDAQ |
| Sector | Healthcare |
| Industry | Biotechnology |
| IPO date | 2017-05-26 |
| History | 2009-11-16 to 2026-10-09 (about 17 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Price history at a glance
ALT last closed at $2.61 on 2026-10-09, -34.8% over the past year and -78.6% over five years. Its deepest fall from a prior high in this history was -99.9%, reached on 2019-11-19.
| Last close | $2.61 (2026-10-09) |
|---|---|
| 1-year change | -34.8% |
| 5-year change | -78.6% |
| Annualized since 2009-11-16 | -31.4% |
| 52-week range | $2.59 – $6.18 |
| Deepest drawdown | -99.9% (2019-11-19) |
| Avg. daily dollar volume (3 months) | $12.7m |
| Daily bars in history | 3,258 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Institutional ownership (13F, 2026Q2)
| Managers holding | 210 |
|---|---|
| Shares held | 151,564,673 ($460.8m reported value) |
| Quarter flows | 58 new, 87 added, 33 trimmed, 21 exited; +82,193,814 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("ALT") on the look-back bundles. Top holders of ALT · All 13F managers
Get it in Python
import finzdata as yf
df = yf.Ticker("ALT").history(start="2009-11-16", interval="1d")
df.tail()