Atossa Therapeutics ATOS
NASDAQ ATOS
$2.27 +0.32 (+16.41%)
At close: Oct 1, 2026 · 4:00 PM EDT

Atossa Therapeutics (ATOS) Shares Outstanding (2011 - 2026)

Updated

Atossa Therapeutics (ATOS) posted Shares Outstanding of 8.91 million for Q2 2026, up 3.3% from 8.62 million a year earlier and up 3.3% from the prior quarter.

Analysis

Atossa Therapeutics (ATOS) Shares Outstanding (2011 - 2026) Analysis & Trends

For FY2025, Atossa Therapeutics' Shares Outstanding came in at 8.61 million, up 2.6% from FY2024.

  • Annual Shares Outstanding shows a five-year compound annual growth rate of 62.8% (FY2020 to FY2025).
  • In prior years, Atossa Therapeutics' Shares Outstanding was 8.39 million in FY2024 (-0.2%), 8.41 million in FY2023 (-0.4%), 8.44 million in FY2022 and 7,797 in FY2021 (-99.0%).
  • The Q2 2026 figure stands as the highest quarterly Shares Outstanding in data going back to Q3 2011.
  • On a year-over-year basis, Shares Outstanding increased in five of the last eight quarters, with growth averaging 1.8%.
  • The strongest year-over-year quarter for Shares Outstanding in the past five years was Q1 2022, with growth of 36.8%; the weakest was Q4 2021, with a decline of 99.0%.
  • According to Business Quant data, Shares Outstanding for the three prior quarters was 8.62 million (Q1 2026), 8.61 million (Q4 2025) and 8.61 million (Q3 2025).
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Shares Outstanding (Qtr)
1 Johnson & Johnson 638.12 Bn 556.64 Bn 17.26 Bn 2.41 Bn
2 AbbVie 462.60 Bn 435.75 Bn 12.70 Bn 1.77 Bn
3 Merck 358.70 Bn 313.13 Bn 12.21 Bn 2.47 Bn
4 Novartis Ag 272.16 Bn 228.03 Bn 11.24 Bn 1.94 Bn
5 Astrazeneca 250.36 Bn 223.92 Bn 12.86 Bn 1.55 Bn
6 Amgen 227.87 Bn 183.27 Bn 7.24 Bn 540.00 Mn
7 Gilead Sciences 184.97 Bn 159.08 Bn 6.22 Bn 1.24 Bn
8 Pfizer 162.61 Bn 109.56 Bn 10.94 Bn 5.70 Bn
9 Vertex Pharmaceuticals 132.45 Bn 104.46 Bn 2.84 Bn 253.70 Mn
10 Atossa Therapeutics 19.46 Mn 19.46 Mn - 8.91 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 8.91 Mn
Mar 31, 2026 8.62 Mn
Dec 31, 2025 8.61 Mn
Sep 30, 2025 8.61 Mn
Jun 30, 2025 8.62 Mn
Mar 31, 2025 8.62 Mn
Dec 31, 2024 8.39 Mn
Sep 30, 2024 8.39 Mn
Jun 30, 2024 8.38 Mn
Mar 31, 2024 8.36 Mn
Dec 31, 2023 8.41 Mn
Sep 30, 2023 8.39 Mn
Jun 30, 2023 8.44 Mn
Mar 31, 2023 8.44 Mn
Dec 31, 2022 8.44 Mn
Sep 30, 2022 8.44 Mn
Jun 30, 2022 8.44 Mn
Mar 31, 2022 8.44 Mn
Dec 31, 2021 7,797.00
Sep 30, 2021 8.44 Mn
API Access

Atossa Therapeutics Shares Outstanding API

Pull this series into your own models, spreadsheets and apps with the Business Quant Historical Metrics API. The request below matches the chart above — change the frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/historic?slug=shares-outstanding&ticker=ATOS&period=max&api_key=YOUR_API_KEY