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Atossa Therapeutics Inc (ATOS)

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0001488039 · EDGAR filings · Updated 2026-06-12

Atossa Therapeutics Inc (ATOS) has reported institutional ownership of 14.4%, with 31 institutional managers holding positions valued at $6.52M per the latest 13F reporting period. SEC filings include an active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), substantial-doubt (going concern) disclosure per the filings.

Institutional ownership
14.4%
Institutional managers
31
Reported 13F value
$6.52M
Insider activity
5 trans.
$9.89K net buying
Data flags
2 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, Atossa Therapeutics Inc has 31 institutional holders and institutional ownership of 14.4%.

Insider activity

Insiders reported 5 transactions (1 buys, 0 sells) across 2 reporting insiders, with a net reported value of $9.89K.

Data flags from SEC filings

Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2026-05-08 (recurring since 2020-03-26) — source filing. The authoritative details are those stated in the filing itself.
Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2026-02-17 (recurring since 2022-10-07) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-06-12.