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Atossa Therapeutics, Inc. logo

NASDAQ · ATOS

Atossa Therapeutics, Inc.

Healthcare · Biotechnology

$2.22

Down-$0.18 (-7.50%)

Updated Sep 20, 2026, 11:40 AM

SID Score

3.4/10

Composite research score

Smart Money

Institutional and insider signal

Market cap
116.87M
P/E ratio
-4.07
Dividend yield
0.00%
52-week range
$1.70 – $19.35
Volume
39.76K
Avg. volume
872.57K

Price performance

ATOS price history

1M range · 19 trading sessions · Daily adjusted prices

ATOS closed at $2.22 after 19 trading sessions, down 15.91% for the selected period.

Last close
$2.22
Period change
-15.91%
Period low
$2.22
Period high
$2.68
Daily close
View OHLC price history
ATOS OHLC price history, latest 40 sessions
DateOpenHighLowCloseVolume
Sep 18, 2026$2.37$2.38$2.22$2.2239.76K
Sep 17, 2026$2.42$2.43$2.37$2.4033.29K
Sep 16, 2026$2.39$2.48$2.39$2.4245.78K
Sep 15, 2026$2.475$2.49$2.37$2.3743.78K
Sep 14, 2026$2.53$2.555$2.45$2.4835.04K
Sep 11, 2026$2.36$2.54$2.36$2.5160.41K
Sep 10, 2026$2.36$2.61$2.33$2.3447.24K
Sep 9, 2026$2.54$2.54$2.40$2.4024.8K
Sep 8, 2026$2.49$2.5871$2.4446$2.51541.37K
Sep 4, 2026$2.51$2.60$2.50$2.5228.03K
Sep 3, 2026$2.50$2.60$2.46$2.5356.69K
Sep 2, 2026$2.40$2.51$2.39$2.4644.77K
Sep 1, 2026$2.48$2.50$2.317$2.4292K
Aug 31, 2026$2.57$2.5895$2.50$2.5053.19K
Aug 28, 2026$2.62$2.62$2.50$2.5849K
Aug 27, 2026$2.64$2.69$2.5848$2.6423.12K
Aug 26, 2026$2.66$2.70$2.61$2.6526.3K
Aug 25, 2026$2.62$2.69$2.58$2.6849.69K
Aug 24, 2026$2.56$2.65$2.45$2.6457.15K

Latest ATOS news

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