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ALT 10-Q: SEC filing

Altimmune, Inc.

Filed with the SEC on · accession 0001326190-26-000070

ALT filed a 10-Q (quarterly report) with the SEC on Nov 12, 2026. The quarterly report: unaudited results for the quarter plus management’s comments. The stock moved -16.6% by the first close after the filing.

Summary of the filing

Altimmune, Inc. filed its quarterly report on Form 10-Q for the period ended September 30, 2026, reporting financial results and disclosing recent financing activities including registered direct offerings and an at-the-market offering program.

For details, click here →How to read a 10-Q →

Key details

FilerAltimmune, Inc.
Underwriter/sales agent for at-the-market offeringLeerink Partners LLC
Underwriter/sales agent for at-the-market offeringPiper Sandler & Co.
Underwriter/sales agent for at-the-market offeringStifel, Nicolaus & Company, Incorporated
Underwriter/sales agent for at-the-market offeringEvercore Group L.L.C.
Underwriter/sales agent for at-the-market offeringJMP Securities LLC
Underwriter/sales agent for at-the-market offeringB. Riley Securities, Inc.

How ALT stock reacted

Close before

$1.93

Nov 11, 2026

First close after

-16.58%

$1.61

5 trading days

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Since filing

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Frequently asked questions

What did ALT file with the SEC on Nov 12, 2026?

ALT filed a 10-Q (SEC filing). Altimmune, Inc. filed its quarterly report on Form 10-Q for the period ended September 30, 2026, reporting financial results and disclosing recent financing activities including registered direct offerings and an at-the-market offering program.

How do I read a 10-Q?

The quarterly report: unaudited results for the quarter plus management’s comments. Compare revenue, margins and cash flow with the same quarter last year. Check MD&A for guidance changes and what drove the quarter.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 10-Q (quarterly report): The quarterly report: unaudited results for the quarter plus management’s comments.

How did ALT stock react to this filing?

ALT closed at $1.93 before the filing and $1.61 on Nov 12, 2026 (-16.58%).

Other ALT SEC filings

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