Atossa Therapeutics, Inc. (ATOS) Stock Price History
Historical prices from 2012 to 2026
- 1M
- -62.0%
- 3M
- -60.1%
- YTD
- -80.1%
- 1Y
- -85.7%
- 3Y
- -47.8%
- 5Y
- -56.7%
Loading 10-year price history...
ATOS Historical Performance
ATOS Annual Returns
Year-by-year price performance · 2012–2026
- 2012 annual price return
- -18.8%
- 2013 annual price return
- -38.9%
- 2014 annual price return
- -37.0%
- 2015 annual price return
- -77.1%
- 2016 annual price return
- -73.9%
- 2017 annual price return
- -81.7%
- 2018 annual price return
- -68.5%
- 2019 annual price return
- +35.3%
- 2020 annual price return
- -40.3%
- 2021 annual price return
- +68.4%
- 2022 annual price return
- -69.5%
- 2023 annual price return
- +49.2%
- 2024 annual price return
- +0.9%
- 2025 annual price return
- -38.5%
- 2026 annual price return
- -53.2%
ATOS Stock Price Trajectory (2012–2026)
As of June 28, 2026, Atossa Therapeutics, Inc. (ATOS) trades at $1.88, representing a -85.7% return over the past year. The stock has delivered a -98.5% total return over five years (-56.7% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $33,480.00 on March 19, 2013. From this peak, ATOS has corrected -100.0%, currently trading 77% below its 200-day moving average, suggesting potential weakness.
When compared to Healthcare sector peers NKTR (+114.5% 1Y), SNDX (+129.1% 1Y), and TPVG (-32.1% 1Y), ATOS has underperformed the peer group average. Compare ATOS vs NKTR →
ATOS Historical Price Data · from 2012
Rows 1–50 of 3,428| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-06-26 | 1.74 | 1.91 | 1.73 | 1.88 | 0 | +6.21% |
| 2026-06-25 | 1.77 | 1.78 | 1.70 | 1.77 | 143K | +1.14% |
| 2026-06-24 | 1.89 | 1.89 | 1.75 | 1.75 | 302K | -7.89% |
| 2026-06-23 | 1.82 | 1.96 | 1.79 | 1.90 | 535K | +3.83% |
| 2026-06-22 | 1.99 | 2.03 | 1.81 | 1.83 | 466K | -8.96% |
| 2026-06-18 | 2.01 | 2.02 | 1.95 | 2.01 | 192K | +1.26% |
| 2026-06-17 | 2.21 | 2.21 | 1.95 | 1.99 | 684K | -10.59% |
| 2026-06-16 | 2.34 | 2.35 | 2.17 | 2.22 | 309K | -5.53% |
| 2026-06-15 | 2.51 | 2.51 | 2.31 | 2.35 | 122K | -4.47% |
| 2026-06-12 | 2.57 | 2.70 | 2.45 | 2.46 | 634K | -4.84% |
| 2026-06-11 | 2.81 | 2.81 | 2.52 | 2.58 | 1.40M | -41.25% |
| 2026-06-10 | 4.39 | 4.59 | 4.36 | 4.40 | 29K | -0.23% |
| 2026-06-09 | 4.55 | 4.57 | 4.36 | 4.41 | 54K | -3.08% |
| 2026-06-08 | 4.46 | 4.56 | 4.35 | 4.55 | 36K | +1.79% |
| 2026-06-05 | 4.60 | 4.60 | 4.45 | 4.47 | 81K | -7.84% |
| 2026-06-04 | 4.67 | 4.88 | 4.65 | 4.85 | 47K | +3.19% |
| 2026-06-03 | 4.71 | 4.80 | 4.69 | 4.70 | 45K | -3.09% |
| 2026-06-02 | 5.06 | 5.14 | 4.80 | 4.85 | 77K | -5.09% |
| 2026-06-01 | 5.14 | 5.20 | 4.93 | 5.11 | 59K | -2.29% |
| 2026-05-29 | 5.21 | 5.29 | 5.00 | 5.23 | 42K | +0.77% |
| 2026-05-28 | 5.19 | 5.25 | 5.02 | 5.19 | 52K | +1.37% |
| 2026-05-27 | 4.91 | 5.18 | 4.86 | 5.12 | 40K | +3.43% |
| 2026-05-26 | 4.95 | 5.05 | 4.86 | 4.95 | 30K | -0.20% |
| 2026-05-22 | 4.93 | 5.10 | 4.84 | 4.96 | 27K | -0.20% |
| 2026-05-21 | 4.78 | 5.08 | 4.66 | 4.97 | 55K | +2.69% |
| 2026-05-20 | 4.71 | 4.90 | 4.68 | 4.84 | 38K | +2.00% |
| 2026-05-19 | 4.80 | 4.92 | 4.66 | 4.75 | 51K | -0.73% |
| 2026-05-18 | 4.85 | 4.95 | 4.70 | 4.78 | 42K | -1.44% |
| 2026-05-15 | 5.11 | 5.11 | 4.85 | 4.85 | 46K | -5.83% |
| 2026-05-14 | 4.99 | 5.16 | 4.95 | 5.15 | 29K | -0.19% |
| 2026-05-13 | 5.23 | 5.31 | 5.15 | 5.16 | 30K | 0.00% |
| 2026-05-12 | 5.12 | 5.21 | 5.08 | 5.16 | 60K | -6.18% |
| 2026-05-11 | 5.58 | 5.60 | 5.45 | 5.50 | 38K | -1.79% |
| 2026-05-08 | 5.42 | 5.65 | 5.42 | 5.60 | 31K | -1.23% |
| 2026-05-07 | 5.78 | 5.81 | 5.61 | 5.67 | 47K | -2.24% |
| 2026-05-06 | 5.67 | 5.89 | 5.49 | 5.80 | 55K | +5.45% |
| 2026-05-05 | 5.86 | 6.18 | 5.29 | 5.50 | 198K | -6.14% |
| 2026-05-04 | 5.33 | 5.97 | 5.33 | 5.86 | 94K | +9.94% |
| 2026-05-01 | 5.29 | 5.43 | 5.16 | 5.33 | 35K | -0.74% |
| 2026-04-30 | 5.28 | 5.46 | 5.19 | 5.37 | 25K | +1.70% |
| 2026-04-29 | 5.54 | 5.54 | 5.23 | 5.28 | 29K | -3.83% |
| 2026-04-28 | 5.49 | 5.74 | 5.32 | 5.49 | 30K | +0.73% |
| 2026-04-27 | 5.68 | 5.78 | 5.39 | 5.45 | 37K | -4.39% |
| 2026-04-24 | 5.56 | 5.76 | 5.56 | 5.70 | 42K | -0.52% |
| 2026-04-23 | 5.79 | 5.93 | 5.61 | 5.73 | 35K | -3.70% |
| 2026-04-22 | 5.77 | 5.98 | 5.75 | 5.95 | 39K | +3.12% |
| 2026-04-21 | 6.17 | 6.17 | 5.76 | 5.77 | 90K | -6.48% |
| 2026-04-20 | 5.89 | 6.28 | 5.80 | 6.17 | 128K | +5.83% |
| 2026-04-17 | 5.81 | 5.94 | 5.67 | 5.83 | 55K | +1.04% |
| 2026-04-16 | 5.57 | 5.78 | 5.52 | 5.77 | 34K | +0.52% |
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
ATOS — Frequently Asked Questions
Quick answers to the most common questions about buying ATOS stock.
How has ATOS stock performed recently?
ATOS declined -85.7% over the past year, below its 5-year annualized CAGR of -56.7%. The stock trades below its 200-day moving average, reflecting the downtrend.
What is ATOS's all-time high price?
Atossa Therapeutics, Inc. reached $33480.00 on 2013-03-19. The 52-week high is $19.35. Current 1-year return of -85.7% places the stock further from historical peaks.
Where can I download ATOS historical price data?
This page provides ATOS daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2012-2026, downloadable in CSV format.