How many insider trades does FilingIQ track for ATOS?

FilingIQ tracks 49 Form 4 insider transactions for ATOS (ATOSSA THERAPEUTICS, INC.), covering filings from Mar 16, 2015 onwards. 8 of those were filed in the last 90 days.

Are ATOS insiders net buyers or net sellers?

Across the full Form 4 history for ATOS, 10 transactions (20%) were open-market purchases and 2 (4%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does ATOS insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is ATOS in?

ATOSSA THERAPEUTICS, INC. (ATOS) is classified in the Healthcare sector, specifically Biotechnology, with a current market capitalisation of $36.25M.

ATOS insider trading

NasdaqCM Healthcare

ATOSSA THERAPEUTICS, INC. — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

Last 90 days

Buys / sells

20% / 4%

Market cap

$36.25M

About ATOSSA THERAPEUTICS, INC.

Atossa Therapeutics, Inc. operates as a clinical-stage biopharmaceutical company that develops medicines in the areas of unmet medical need in oncology for women breast cancer and other conditions in the United States. The company's lead drug candidate is oral (Z)-endoxifen, an active metabolite of tamoxifen, which is in Phase II clinical trials to treat and prevent breast cancer. It also develops immunotherapy/chimeric antigen receptor therapy programs. The company was formerly known as Atossa Genetics Inc. and changed its name to Atossa Therapeutics, Inc. in January 2020. Atossa Therapeutics, Inc. was founded in 2008 and is based in Seattle, Washington.

Company website: www.atossatherapeutics.com

ATOS insider activity at a glance

FilingIQ has scored 49 insider transactions for ATOS since Mar 16, 2015. The most recent filing in our index is dated May 12, 2026.

Across the full history, 10 open-market purchases and 2 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on ATOS insider trades is 65.6/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live ATOS trades on FilingIQ Raw filings on SEC EDGAR

Latest ATOS Form 4 filings

QUAY STEVEN C President & CEO

P May 21, 2025

WEAVER GREGORY L Former EVP, CFO, & Director

S Nov 15, 2023

WEAVER GREGORY L EVP & CFO

P Jun 20, 2023

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

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Frequently asked

How many insider trades does FilingIQ track for ATOS?: FilingIQ tracks 49 Form 4 insider transactions for ATOS (ATOSSA THERAPEUTICS, INC.), covering filings from Mar 16, 2015 onwards. 8 of those were filed in the last 90 days.
Are ATOS insiders net buyers or net sellers?: Across the full Form 4 history for ATOS, 10 transactions (20%) were open-market purchases and 2 (4%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does ATOS insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is ATOS in?: ATOSSA THERAPEUTICS, INC. (ATOS) is classified in the Healthcare sector, specifically Biotechnology, with a current market capitalisation of $36.25M.

Methodology & sources

Every ATOS insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.