TickerFacts.

Atossa Therapeutics, Inc. (ATOS): Weighted Average Diluted Shares

Annual figures by period end, from SEC filings.

Stock splits: 1-for-15, first reflected in a filing dated 2026-03-25. Figures are as filed: per-share figures and share counts last reported before a split are on the old share basis, so changes and growth rates across a split are not shown. Splits are read from the filings' own restatements, so a share conversion in a merger or reorganization shows up the same way.

8.61M
Year ended 2025-12-31
126.62M2022-12-31: 126.62M2023-12-31: 126.08M2024-12-31: 8.39M2025-12-31: 8.61M8.61M
2022-12-31 Weighted Average Diluted Shares (shares) 2025-12-31

Paler bars were last filed before a stock split, on the old share basis.

Period endedWeighted Average Diluted SharesChange YoYSource filing
2025-12-318.61M+2.6%2026-03-25, From 2025-01-01
2024-12-318.39Mn/c2026-03-25, From 2024-01-01
2023-12-31126.08M-0.4%2025-03-25, From 2023-01-01
2022-12-31126.62Mn/a2024-04-01, From 2022-01-01