ALT earnings date, and what happened the last 4 times

Next report

Thu Nov 5

Quality Score today -6

Before the open, in 10 days. Expected: the company has not confirmed it.

ALT closed higher after 1 of its last 4 reports. On average it closed -4.3% the session after a report.

The moment ALT reports

Its figures, in plain words
How it moves after, beside its last four
Its Quality Score going in, and after

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What happened after ALT's last 4 reports

ALT's last 4 earnings reports
Reported	Score going in	Gap	Reaction	5 sessions
Aug 12, 20262026 · Before open	-1estimated	+1.7%	-2.3%	-1.0%
May 13, 20262026 · Before open	-1estimated	-3.3%	-1.9%	-11.0%
Mar 5, 20262026 · Before open	-8estimated	-4.0%	-17.9%	-11.0%
Nov 6, 20252025 · Before open	-2estimated	+1.9%	+5.1%	+12.8%

Aug 12, 2026, before the open: that session ALT opened +1.7% and closed -2.3%, and five sessions on it stood -1.0%. Its Quality Score going in was -1 (Poor), estimated.
May 13, 2026, before the open: that session ALT opened -3.3% and closed -1.9%, and five sessions on it stood -11.0%. Its Quality Score going in was -1 (Poor), estimated.
Mar 5, 2026, before the open: that session ALT opened -4.0% and closed -17.9%, and five sessions on it stood -11.0%. Its Quality Score going in was -8 (Poor), estimated.
Nov 6, 2025, before the open: that session ALT opened +1.9% and closed +5.1%, and five sessions on it stood +12.8%. Its Quality Score going in was -2 (Poor), estimated.

Across these 4 reports ALT opened higher after 2 of 4 and closed higher after 1 of 4; on average it opened -0.9%, closed -4.3%, and stood -2.6% five sessions on. Its Quality Score is -6 today, against -1 going into its Aug 12, 2026 report.

Gap: where the stock opened the session after the report. Reaction: where that session closed. Both against the close before the report. The largest of the 4: -17.9% after the Mar 5, 2026 report. A score marked estimated was worked out afterwards from that day's prices and filings; Breakaway has recorded every score live since Sep 9 2026.

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Questions about ALT's earnings

As of Oct 26, 2026: Altimmune (ALT): expected to report Thu Nov 5, before the open. ALT closed higher after 1 of its last 4 reports. Its Quality Score is -6 (Poor). Scores as of 10:16 PM ET, 15 minutes behind.

When is ALT's next earnings date?

Expected to report Thu Nov 5, before the open, a date Breakaway expects from the company's usual timing; the company has not confirmed it. ALT closed higher after 1 of its last 4 reports. Past behavior, not a forecast.

Does ALT report before or after the market?

ALT is expected to report Thu Nov 5, before the open. Its last 4 reports came before the open.

How did ALT stock react to its last earnings report?

Aug 12, 2026, before the open: that session ALT opened +1.7% and closed -2.3%, and five sessions on it stood -1.0%.

Does ALT stock usually go up after earnings?

ALT closed higher after 1 of its last 4 reports. On average it closed -4.3% the session after a report, after opening -0.9%. Past behavior, not a forecast.

Altimmune's page has its Quality Score, its chart, and its insiders' trades. Everyone reporting beside it: next week's earnings.