SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

ATOS

Atossa Therapeutics Inc
NASDAQHealth Care

Latest close: 2.91 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record◆Adverse 8-K filing●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 9, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  2. Sep 29, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  3. Sep 18, 2026Material event · 8-KFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record5963 flagged findings
Reported transactions (Form 4)42since Mar 2, 2023 · and 6 other holdings
Corporate events (8-K)30since Apr 13, 2020

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

Reverse splits in 5 years

1 reverse split in 5 years (1:15 on Feb 2, 2026) · 1:15 cumulative

The other times: of 818 securities that did their first reverse split in 5 years, a year later the median was worth 0.53× the price on the day of the split; 382 lost more than half and 209 rose (809 with a price a year later).

Our own series, not the whole market: based on the splits we have on record (provider and SEC); an unrecorded one does not count. Historical distribution, not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 596)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Oct 9, 268-K ↗Current report · Entered a material agreement
  • Sep 29, 268-K ↗Current report · Other events
  • Sep 18, 268-K ↗Current report · Communication to the market
  • Aug 7, 268-K ↗Current report · Results
  • Aug 7, 2610-Q ↗Quarterly report
  • Jun 12, 26424B5 ↗Securities offering
  • Jun 11, 268-K ↗Current report · Entered a material agreement
  • Insider transaction · 6 Form 4 filingsshow all 6hide
  • May 8, 268-K ↗Current report · Financial statements and exhibits
  • May 8, 2610-Q ↗Quarterly report
  • May 8, 268-K ↗Current report · Shareholder vote results
  • Apr 16, 268-K ↗Current report · Other events
  • Insider transaction · 2 Form 4 filingsshow all 2hide
  • Mar 30, 26DEF 14A ↗Shareholder meeting and votes
  • Mar 25, 2610-K ↗Annual report
  • Mar 25, 268-K ↗Current report · Financial statements and exhibits
  • Mar 20, 26PRE 14A ↗Shareholder meeting and votes
  • Feb 20, 268-K ↗Current report · A material agreement was terminated
  • Feb 20, 26424B5 ↗Securities offering

596 filings on record, the oldest from Mar 30, 10.

Listing the 25 most recent filings of the 596 on record.

8-Ks, explained

Stress13Structure37Governance26
  • Oct 9, 26StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Jun 11, 26StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Feb 20, 26StructureA material agreement was terminated+2 more in the same filing8-K 1.02 ↗
  • Feb 17, 26StressListing notice (8-K 3.01)the same filing reports the recovery8-K 3.01 ↗
  • Oct 14, 25GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Aug 21, 25StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Feb 24, 25StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Nov 19, 24StructureEntered a material agreement8-K 1.01 ↗
  • Jul 2, 24GovernanceA senior executive left or was appointed+3 more in the same filing8-K 5.02 ↗
  • Mar 18, 24StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Governance3 senior executive changes2023 – 2024show all 3hide
    • Mar 12, 24GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Nov 9, 23GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Oct 6, 23GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Stress3 listing notices2023show all 3hide

13 older filings not shown · The record reaches back to Jan 4, 13.

Notable in the record

Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.

  • Apr 4, 23StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Oct 7, 22StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Nov 13, 18StressPast accounts declared unreliable and being restated+2 more in the same filing8-K 4.02 ↗

The full record holds 13 stress filings.

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • May 21, 25Buy$10KSTEVEN C QUAYPresident & CEO↗
  • Mar 26, 25Buy$7KH. Lawrence Remmel↗
  • Apr 10, 24Buy$44KJonathan Finn↗
  • Nov 15, 23Sell$33KGREGORY L WEAVERFormer EVP, CFO, & Director↗
  • Jun 20, 23Buy$49KGREGORY L WEAVEREVP & CFO↗
Stock compensation, tax and giftsshow the 9 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • May 12, 26Compensationamount n/aTessa Cigler↗
  • May 12, 26Compensationamount n/aStephen J Galli↗
  • May 12, 26Compensationamount n/aJonathan Finn↗
  • May 12, 26Compensationamount n/aH. Lawrence Remmel↗
  • May 12, 26Compensationamount n/aShu-Chih Chen↗
  • May 12, 26Compensationamount n/aRichard I Steinhart↗
  • Mar 27, 26Compensationamount n/aSTEVEN C QUAYPresident & CEO↗
  • Mar 26, 26Compensationamount n/aMark James DanielChief Financial Officer↗
  • Jan 20, 26Compensationamount n/aSTEVEN C QUAYPresident & CEO↗

The full record holds 14 transactions and goes back to Mar 2, 23.

Its sector and its market

Atossa Therapeutics Inc among Health Care companies

The profile shows what is on record. Context and Radar place the company among those of its sector and region.

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
Series with incidents in the period; the chart shows what could be kept.
SEC records
596 documents on file, from Mar 30, 2010 to Oct 9, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Are the prices real time?

No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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