ATOSSA THERAPEUTICS, INC. (ATOS)
Latest ATOS Insider Trades
- Steven C. Quay - OfficerOpen-market purchase$10K
Richard I. SteinhartGrant or award10,000 sh
Shu-Chih ChenGrant or award
About ATOSSA THERAPEUTICS, INC. (ATOS)
Atossa Therapeutics Inc is a clinical-stage biopharmaceutical company engaged in the development of proprietary medicines for oncology, with a focus on breast cancer and related conditions. The company's lead product candidate, oral (Z)-endoxifen, is a selective estrogen receptor modulator and degrader (SERM/SERD) in Phase 2 clinical development, being evaluated for the treatment and prevention of breast cancer and other indications.
- SEATTLE, WA
- 14
- 2012
- XNAS
https://www.atossatherapeutics.comSEC filings for ATOS on EDGAR
90-Day SEC Filing Activity
No Form 4 activity for ATOS in the last 90 days.
ATOS Insider Transactions (Form 4)
1614 Form 4 filings on record, the earliest from May 15, 2025, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Richard I. Steinhart | Grant or award | Common Stock | 10,000 |
Recent ATOS Form 8-K Filings
5ATOS Insider Trading - FAQ
What is the latest insider trade for ATOS?
ATOSSA THERAPEUTICS, INC. (ATOS) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-05-14. The full record for ATOS runs to 14 Form 4 filings, the earliest from 2025-05-15. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying ATOS stock?
No insider purchases of ATOS were filed in the last 90 days. 1 purchase is on record for this company.
How many insiders are selling ATOS stock?
No insider sales of ATOS were filed in the last 90 days.
Where can I see ATOS SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks ATOS Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow ATOS insider buys?
Create a free InsiderAlpha account and press Watch on this page to add ATOS to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
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Recent Insider Filings
10Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Richard I. Steinhart view on EDGAR
- - Shu-Chih Chen view on EDGAR
- - H. Lawrence Remmel view on EDGAR
- - Jonathan Finn view on EDGAR
- - Stephen J. Galli view on EDGAR
- - Tessa Cigler view on EDGAR
- - Steven C. Quay view on EDGAR
- - Mark James Daniel view on EDGAR
- - Steven C. Quay view on EDGAR
Related Companies - Recent Insider Activity
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity in Health Care
- Where ATOS's peers are being bought and sold.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track ATOS insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
