Stock listing
NASDAQ:ATOS Atossa Therapeutics, Inc. Stock
Home listing (NASDAQ) of Atossa Therapeutics, Inc.
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Share price · NASDAQ:ATOS
$2.17 USD -0.06 (-2.7%)
Close on Oct 30, 2026
- Day range
- $2.14 – $2.43 USDOct 30, 2026
- Volume
- 32,903 sharesOct 30, 2026
- Market cap
- $21.66M USDAt the close on Oct 30, 2026 · price × 9.98M shares outstanding
- 52-week range
- $1.70 – $14.85 USDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $172,832 USDMedian day 56,698 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Prices by listing
| Listing | Last | Change | Volume | Open | High | Low | Previous close | Price from |
|---|---|---|---|---|---|---|---|---|
| NASDAQ:ATOS · Home | $2.17 USD | -0.06 (-2.7%) | 32,903 | $2.25 | $2.43 | $2.14 | $2.23 | Close on Oct 30, 2026 |
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · NASDAQ:ATOS · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $2.17 | -0.06 | -2.7% | $2.25 | $2.43 | $2.14 | 32,903 | |
| $2.23 | -0.14 | -5.9% | $2.35 | $2.375 | $2.22 | 68,006 | |
| $2.37 | -0.01 | -0.4% | $2.38 | $2.425 | $2.36 | 29,410 | |
| $2.38 | -0.07 | -2.9% | $2.44 | $2.628 | $2.37 | 24,830 | |
| $2.45 | -0.15 | -5.8% | $2.58 | $2.58 | $2.40 | 35,077 | |
| $2.60 | -0.12 | -4.4% | $2.74 | $2.85 | $2.60 | 77,024 | |
| $2.72 | +0.19 | +7.5% | $2.49 | $2.77 | $2.46 | 90,656 | |
| $2.53 | -0.01 | -0.4% | $2.53 | $2.585 | $2.38 | 189,632 | |
| $2.54 | -0.02 | -0.8% | $2.54 | $2.67 | $2.51 | 36,755 | |
| $2.56 | -0.35 | -12.0% | $2.66 | $2.76 | $2.51 | 80,522 | |
| $2.91 | +0.26 | +9.8% | $2.59 | $2.95 | $2.51 | 104,625 | |
| $2.65 | -0.13 | -4.7% | $2.78 | $3.12 | $2.53 | 227,027 | |
| $2.78 | +0.22 | +8.6% | $2.52 | $2.81 | $2.45 | 238,706 | |
| $2.56 | +0.171 | +7.2% | $2.35 | $2.60 | $2.30 | 71,414 | |
| $2.389 | -0.051 | -2.1% | $2.44 | $2.53 | $2.335 | 81,419 | |
| $2.44 | +0.02 | +0.8% | $2.45 | $2.74 | $2.12 | 265,612 | |
| $2.42 | -0.04 | -1.6% | $2.46 | $2.478 | $2.385 | 101,012 | |
| $2.46 | +0.01 | +0.4% | $2.41 | $2.49 | $2.41 | 19,070 | |
| $2.45 | 0.00 | 0.0% | $2.46 | $2.54 | $2.43 | 54,625 | |
| $2.45 | +0.11 | +4.7% | $2.38 | $2.50 | $2.341 | 53,315 | |
| $2.34 | +0.07 | +3.1% | $2.23 | $2.379 | $2.17 | 74,271 | |
| $2.27 | +0.32 | +16.4% | $1.96 | $2.30 | $1.96 | 113,600 | |
| $1.95 | -0.04 | -2.0% | $1.99 | $2.15 | $1.95 | 67,768 | |
| $1.99 | +0.03 | +1.5% | $2.06 | $2.16 | $1.96 | 83,318 | |
| $1.96 | +0.06 | +3.2% | $1.905 | $2.04 | $1.82 | 152,932 | |
| $1.90 | -0.15 | -7.3% | $2.06 | $2.065 | $1.89 | 77,843 | |
| $2.05 | -0.13 | -6.0% | $2.15 | $2.22 | $2.05 | 37,461 | |
| $2.18 | -0.08 | -3.5% | $2.25 | $2.26 | $2.15 | 37,187 | |
| $2.26 | +0.01 | +0.4% | $2.25 | $2.43 | $2.25 | 129,526 | |
| $2.25 | +0.03 | +1.4% | $2.25 | $2.39 | $2.25 | 67,169 | |
| $2.22 | -0.18 | -7.5% | $2.37 | $2.38 | $2.22 | 39,755 | |
| $2.40 | -0.02 | -0.8% | $2.42 | $2.43 | $2.37 | 33,288 | |
| $2.42 | +0.05 | +2.1% | $2.39 | $2.48 | $2.39 | 45,776 | |
| $2.37 | -0.11 | -4.4% | $2.475 | $2.49 | $2.37 | 43,779 | |
| $2.48 | -0.03 | -1.2% | $2.53 | $2.555 | $2.45 | 35,039 | |
| $2.51 | +0.17 | +7.3% | $2.36 | $2.54 | $2.36 | 60,410 | |
| $2.34 | -0.06 | -2.5% | $2.36 | $2.61 | $2.33 | 47,238 | |
| $2.40 | -0.115 | -4.6% | $2.54 | $2.54 | $2.40 | 24,800 | |
| $2.515 | -0.005 | -0.2% | $2.49 | $2.587 | $2.445 | 41,370 | |
| $2.52 | -0.01 | -0.4% | $2.51 | $2.60 | $2.50 | 28,028 | |
| $2.53 | +0.07 | +2.8% | $2.50 | $2.60 | $2.46 | 56,692 | |
| $2.46 | +0.04 | +1.7% | $2.40 | $2.51 | $2.39 | 44,771 | |
| $2.42 | -0.08 | -3.2% | $2.48 | $2.50 | $2.317 | 92,004 | |
| $2.50 | -0.08 | -3.1% | $2.57 | $2.59 | $2.50 | 53,194 | |
| $2.58 | -0.06 | -2.3% | $2.62 | $2.62 | $2.50 | 49,003 | |
| $2.64 | -0.01 | -0.4% | $2.64 | $2.69 | $2.585 | 23,115 | |
| $2.65 | -0.03 | -1.1% | $2.66 | $2.70 | $2.61 | 26,301 | |
| $2.68 | +0.04 | +1.5% | $2.62 | $2.69 | $2.58 | 49,690 | |
| $2.64 | +0.10 | +3.9% | $2.56 | $2.65 | $2.45 | 57,149 | |
| $2.54 | -0.05 | -1.9% | $2.59 | $2.62 | $2.51 | 25,656 | |
| $2.59 | -0.05 | -1.9% | $2.62 | $2.62 | $2.44 | 70,954 | |
| $2.64 | +0.05 | +1.9% | $2.57 | $2.76 | $2.55 | 62,197 | |
| $2.59 | -0.20 | -7.2% | $2.77 | $2.783 | $2.565 | 58,563 | |
| $2.79 | +0.19 | +7.3% | $2.62 | $2.97 | $2.55 | 192,438 | |
| $2.60 | +0.04 | +1.6% | $2.54 | $2.69 | $2.43 | 96,120 | |
| $2.56 | +0.21 | +8.9% | $2.36 | $2.56 | $2.355 | 83,113 | |
| $2.35 | -0.01 | -0.4% | $2.32 | $2.37 | $2.27 | 31,349 | |
| $2.36 | -0.01 | -0.4% | $2.39 | $2.45 | $2.27 | 56,704 | |
| $2.37 | +0.01 | +0.4% | $2.26 | $2.45 | $2.26 | 69,086 | |
| $2.36 | -0.06 | -2.5% | $2.37 | $2.45 | $2.24 | 78,020 | |
| $2.42 | +0.03 | +1.3% | $2.39 | $2.44 | $2.26 | 30,786 | |
| $2.39 | +0.08 | +3.5% | $2.37 | $2.39 | $2.269 | 36,767 | |
| $2.31 | +0.14 | +6.5% | $2.18 | $2.34 | $2.18 | 54,974 | |
| $2.17 | +0.10 | +4.8% | $2.10 | $2.19 | $2.07 | 24,344 | |
| $2.07 | -0.12 | -5.5% | $2.19 | $2.19 | $2.05 | 79,045 | |
| $2.19 | -0.12 | -5.2% | $2.29 | $2.295 | $2.18 | 32,533 |
- Ticker
- NASDAQ:ATOS
- Asset type
- Stock
- Sector
- Health care
- Industry
- Biotechnology
- Exchange
- NASDAQ
- Currency
- USD
What changed lately
Latest news release · Oct 19, 2026
Atossa Therapeutics Common Stock to Begin Trading with Stapled Contingent Value Rights After Close of Business Today
Latest deck · September 2026
Investor Presentation (September 2026)
Investor deck · 29 slides
Calls
Replays
Atossa Therapeutics (NASDAQ:ATOS) Q4 2024 Earnings Call
Tue, Mar 25, 2025 · 8:30 AM ET
Watch TranscriptAtossa Therapeutics (NASDAQ:ATOS) Q4 2023 Earnings Call
Tue, Mar 26, 2024 · 9:00 AM ET
Watch TranscriptAtossa Therapeutics (NASDAQ:ATOS) Q3 2023 Earnings Call
Thu, Oct 26, 2023 · 9:00 AM ET
Watch Transcript
Latest news
Atossa Therapeutics Common Stock to Begin Trading with Stapled Contingent Value Rights After Close of Business Today
Oct 19, 2026
Closed $2.56 (-12.0%) on Oct 19, 2026
Atossa Therapeutics Executes Contingent Value Rights Agreement Providing Shareholders Participation in Potential Priority Review Voucher Value
Oct 9, 2026
Closed $2.44 (+0.8%) on Oct 9, 2026
Atossa Therapeutics Announces Plan to Issue Stapled CVR for Shareholders Tied to Potential Rare Pediatric Disease Priority Review Voucher
Sep 29, 2026
Closed $1.99 (+1.5%) on Sep 29, 2026
Atossa Therapeutics Announces Publication of Novel (Z)-Endoxifen-Related Compounds Demonstrating Potent Anti-Cancer Activity in ER-Positive Breast Cancer
Jul 28, 2026
Closed $2.42 (+2.3%) on Jul 28, 2026
Atossa Therapeutics Announces Presentation of Mechanism-Driven (Z)-Endoxifen Data in McCune-Albright Syndrome at AACR Special Conference on Rare Cancers
Jul 21, 2026
Closed $2.40 (-3.6%) on Jul 21, 2026
Atossa Therapeutics Announces Closing of Registered Direct Offering of up to $16.5 Million in Gross Proceeds
Jun 12, 2026
Closed $2.35 (-4.5%) on Jun 15, 2026
Atossa Therapeutics Announces Registered Direct Offering of up to $16.5 Million in Gross Proceeds
Jun 11, 2026
Closed $2.59 (-41.3%) on Jun 11, 2026
Atossa Therapeutics Announces ASCO 2026 Abstracts Highlighting (Z)-Endoxifen Activity Across ESR1 Mutations and Ongoing EVANGELINE Phase 2 Trial
May 27, 2026
Closed $5.12 (+3.4%) on May 27, 2026
Decks
Investor Presentation (September 2026)
Investor deck · 29 slides · September 2026
Atossa Genetics — Corporate Update (September 2018)
Corporate update · 25 slides · Sep 13, 2018
Atossa Genetics — IPO Roadshow (May 2018)
IPO roadshow · 30 slides · May 16, 2018
Atossa Genetics — Investor Presentation (February 2018)
Investor deck · 31 slides · Feb 21, 2018
Atossa Therapeutics, Inc. on 6ix
- Sector
- Health care
- Industry
- Biotechnology
- News releases
- 32 in the last 12 months · 186 in all · newest Oct 19, 2026 · oldest 2019
- Calls
- 4 calls with a replay · 4 with a transcript · latest Mar 25, 2025
- Decks
- 9 decks · latest September 2026
Where Atossa Therapeutics, Inc. is listed
| Listing | Exchange | Country | Currency |
|---|---|---|---|
| NASDAQ:ATOS · Home listing · This page | NASDAQ | United States | USD |
| BMV:ATOS | BMV | Mexico | MXN |
| Tradegate:YAG | Tradegate | Germany | EUR |
| gettex:YAG | gettex | Germany | EUR |
| LS Exchange:A2JJ99 | LS Exchange | Germany | EUR |
| BIVA:ATOS | BIVA | Mexico | MXN |
| BOATS:ATOS | BOATS | United States | USD |
| Lang & Schwarz:A2JJ99 | Lang & Schwarz | Germany | EUR |
| LS Exchange:A41ZVB | LS Exchange | Germany | EUR |
| Dusseldorf:YAG | Dusseldorf | Germany | USD |
| Frankfurt:YAG | Frankfurt | Germany | EUR |
| Lang & Schwarz:A41ZVB | Lang & Schwarz | Germany | EUR |
| Munich:YAG | Munich | Germany | EUR |
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