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ALTIMMUNE INC (ALT)

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0001326190 · EDGAR filings · Updated 2026-07-28

ALTIMMUNE INC (ALT) has reported institutional ownership of 53.3%, with 171 institutional managers holding positions valued at $213.3M per the latest 13F reporting period.

Filings this week (1)

• 2026-07-28 — Current report (8-K) filed

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

• 2026-06-16 — Current report (8-K) filed
• 2026-05-15 — SCHEDULE 13G/A filed
• 2026-05-13 — Employee-plan registration (S-8) filed
• 2026-05-13 — Quarterly report (10-Q) filed
• 2026-05-13 — Current report (8-K) filed

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, ALTIMMUNE INC has 171 institutional holders and institutional ownership of 53.3%.

Insider activity

Insiders reported 36 transactions (7 buys, 0 sells) across 10 reporting insiders, with a net reported value of $215.9K.

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