# Altimmune, Inc. (ALT) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/alt

> 5 non-derivative transactions: 1 purchase ($44K), 0 sales. CIK 1326190.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-16 | Richardson Linda M | Officer | F | 6826.0 | 3.24 | 17174.0 | https://www.sec.gov/Archives/edgar/data/1326190/000159506426000002/0001595064-26-000002-index.htm |
| 2026-09-16 | Richardson Linda M | Officer | M | 24000.0 | 0.0 | 24000.0 | https://www.sec.gov/Archives/edgar/data/1326190/000159506426000002/0001595064-26-000002-index.htm |
| 2026-08-13 | Durso Jerome Benedict | Director, Officer | P | 15000.0 | 2.95 | 62500.0 | https://www.sec.gov/Archives/edgar/data/1326190/000169866526000007/0001698665-26-000007-index.htm |
| 2026-07-31 | WEAVER GREGORY L | Officer | A | 1753.0 | 2.41 | 39831.0 | https://www.sec.gov/Archives/edgar/data/1326190/000125177926000009/0001251779-26-000009-index.htm |
| 2026-07-31 | Roberts M Scot | Officer | A | 875.0 | 2.41 | 113699.0 | https://www.sec.gov/Archives/edgar/data/1326190/000170590526000010/0001705905-26-000010-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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