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ATOSSA THERAPEUTICS, INC.
ATOS·Nasdaq·
United States·Insider activity
United States·Insider activity$2.46
+0.01 (+0.41%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
ATOS
Insider purchases and sales on the price
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ATOSS&P 500 (rebased)
Insider BuyInsider SellForm 144 · planned sale
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
No open-market insider purchases or sales of ATOS were filed in the last 180 days. Newest filing May 22, 2025 (1 year ago).
Net Insider Buying by Quarter
Shares bought (+) or sold (−) on the open market by ATOS insiders · Form 4 · last two years
On Record
$0Purchases · 180 days
$0Sales · 180 days
24Open-market transactions on record
0Insiders filing · 180 days
Purchases (code P) and sales (code S) of ATOS common stock reported on Form 4, with Form 5 annual catch-ups. Grants, option exercises, gifts and tax withholding are not shown. Dollars are shares × the stated price; a price outside anything the stock traded at that day is withheld (n/c).
Insider Transactions
24 on record · newest trade first
AllPurchasesSalesOfficers & directors
| Insider | Type | Shares | Price | Value | Held after | Traded | Filed | |
|---|---|---|---|---|---|---|---|---|
| QUAY STEVEN CPresident & CEO · Director | Purchase | +11.2K | $0.88 | $10K | 13.9Kdirect | May 21, 2025 | May 22, 2025 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +10.0K | $0.70 | $7K | 10.3Kdirect | Mar 26, 2025 | Mar 28, 2025 | Form 4 ↗ |
| Finn JonathanDirector | Purchase | +25.0K | $1.77 | $44K | 25.0Kdirect | Apr 10, 2024 | Apr 11, 2024 | Form 4 ↗ |
| WEAVER GREGORY LFormer EVP, CFO, & Director · Director | Sale | −50.0K | $0.65 | $33K | 55direct | Nov 15, 2023 | Nov 17, 2023 | Form 4 ↗ |
| WEAVER GREGORY LEVP & CFO · Director | Purchase | +50.0K | $0.97 | $49K | 50.1Kdirect | Jun 20, 2023 | Jun 20, 2023 | Form 4 ↗ |
| WEAVER GREGORY LDirector | Sale | −107.5K | $5.58 | $600K | 0direct | Jul 2, 2021 | Jul 7, 2021 | Form 4 ↗ |
| Guse KyleCFO, Gen Counsel and Secretary | Purchase | +1,400 | $0.34 | $476 | 10.0Kdirect | Nov 15, 2017 | Nov 16, 2017 | Form 4 ↗ |
| Guse KyleCFO, Gen Counsel and Secretary | Purchase | +8,600 | $0.34 | $3K | 8,600direct | Nov 15, 2017 | Nov 16, 2017 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +2,500 | $0.63 | $2K | 3,126direct | Apr 17, 2017 | Apr 18, 2017 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +1,500 | $0.33 | $495 | 10.9Kdirect | Apr 1, 2016 | Apr 4, 2016 | Form 4 ↗ |
| Chen Shu-ChihDirector · 10% owner | Purchase | +15.0K | $0.37 | $6K | 4.3Mindirect | Mar 9, 2016 | Mar 10, 2016 | Form 4 ↗ |
| QUAY STEVEN CPresident & CEO · Director · 10% owner | Purchase | +15.0K | $0.37 | $6K | 4.8Mindirect | Mar 9, 2016 | Mar 10, 2016 | Form 4 ↗ |
| QUAY STEVEN CPresident & CEO · Director · 10% owner | Purchase | +15.0K | $0.53 | $8K | 4.8Mindirect | Feb 16, 2016 | Feb 17, 2016 | Form 4 ↗ |
| Chen Shu-ChihDirector · 10% owner | Purchase | +15.0K | $0.53 | $8K | 4.3Mindirect | Feb 16, 2016 | Feb 17, 2016 | Form 4 ↗ |
| Chen Shu-ChihDirector · 10% owner | Purchase | +50.0K | $0.20 | $10K | 4.3Mindirect | Jan 19, 2016 | Jan 21, 2016 | Form 4 ↗ |
| QUAY STEVEN CPresident & CEO · Director · 10% owner | Purchase | +50.0K | $0.20 | $10K | 4.8Mindirect | Jan 19, 2016 | Jan 21, 2016 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +5,400 | $1.30 | $7K | 9,400direct | Jun 12, 2015 | Jun 15, 2015 | Form 4 ↗ |
| WEAVER GREGORY LDirector | Purchase | +10.0K | $2.58 | $26K | 34.5Kdirect | Nov 21, 2013 | Nov 22, 2013 | Form 4 ↗ |
| QUAY STEVEN CCEO · Director · 10% owner | Sale | −7,265 | $5.66 | $41K | 4.3Mindirect | Oct 1, 2013 | Oct 3, 2013 | Form 4 ↗ |
| Chen Shu-ChihChief Scientific Officer · Director · 10% owner | Sale | −7,265 | $5.66 | $41K | 4.3Mindirect | Oct 1, 2013 | Oct 3, 2013 | Form 4 ↗ |
| CROSS ALEXANDER DDirector | Purchase | +500 | $5.49 | $3K | 88.9Kindirect | May 15, 2013 | Jun 27, 2013 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +2,000 | $4.05 | $8K | 2,000indirect | Jan 8, 2013 | Jan 9, 2013 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +1,600 | $4.20 | $7K | 2,000direct | Jan 8, 2013 | Jan 9, 2013 | Form 4 ↗ |
| Remmel H. LawrenceDirector | Purchase | +400 | $4.10 | $2K | 400direct | Jan 8, 2013 | Jan 9, 2013 | Form 4 ↗ |
Source: SEC EDGAR Form 4 and Form 5 filings, SEC's quarterly bulk dataset through Jun 30, 2026, and KeyVex's half-hourly read of new filings since. Every row links its filing. Amendments are marked. Nothing here is a recommendation. All insider activity, market-wide →