ALTAltimmune, Inc.Healthcare · Biotechnologyas of 2026-08-13
Horizon

Issued 2026-08-13 at $2.93 · now $2.88 (2026-08-13, −1.7% since)

Based on its own history, a month from the 2026-08-13 close, ALT has typically landed between $2.05 and $4.32 — a range of −30.1% to +47.4% from the issuance price $2.93.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

2,293 overlapping 1 month windows · 2017-05-262026-07-15 · basis climatology · forecast (batch). Probability up 53.8% (90% CI 51.656.0%, ≈1,400 obs).

The cone is anchored at the 2026-08-13 issuance close ($2.93) — the price the forecast resolves against on 2026-09-11, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

Where ALT has typically landed a month from the 2026-08-13 close of $2.93 — the range is history, not a prediction.

$2.05worst · -30.1%$4.32best · +47.4%
  • now $2.88 (-1.7%)
  • typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $2.75 (-6.0%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $2.37$3.14
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $2.05$4.32
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 2,293 windows spanning 2017-05-26 to 2026-08-13. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
StartReturnMax dropMax rise
3 worst
2018-09-21−84.3%−85.3%+0.0%
2018-09-20−83.6%−85.3%+0.0%
2018-09-25−70.1%−70.6%+0.0%
3 best
2020-06-18+355.6%+0.0%+355.6%
2020-06-19+324.3%+0.0%+349.5%
2023-11-24+290.4%+0.0%+290.4%

2,293 overlapping windows · 2017-05-262026-08-13 · not cherry-picked

Pending catalysts

  • 2027-03-31Trial primary completion: Phase 2 primary completion: RESTORE TRIAL: A Phase 2 Study Evaluating the Efficacy and Safety of Pemvidutide in the Treatment of Alcohol-Associated Liver Disease (ALD) (source, as of 2026-08-14)

Public, scheduled events — dated attention, not a prediction of the outcome. See the FDA catalysts page for the historical base rate.

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~10 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.
Jan
33%
+7.3%
n=9
Feb
44%
−2.8%
n=9
Mar
22%
−11.3%
n=9
Apr
33%
−10.4%
n=9
May
56%
+20.9%
n=9
Jun
20%
+1.8%
n=10
Jul
30%
+7.6%
n=10
Aug
50%
+8.4%
n=10
Sep
11%
−18.4%
n=9
Oct
33%
−2.4%
n=9
Nov
44%
+4.0%
n=9
Dec
44%
+25.0%
n=9

Up-frequency and average month-over-month return · historical frequency, not a prediction

Company insiders iOpen-market share purchases and sales by the company's own officers and directors, by filing date.

Last 90 days · as of 2026-08-13 · point-in-time by filing date

No insider transactions on record in the last 90 days.

Congressional disclosures

No congressional trades disclosed for this company.

Research tool, not investment advice — historical frequencies, not recommendations. Full terms.