TickerFacts.

SELLAS Life Sciences Group, Inc. (SLS): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 1-for-20, first reflected in a filing dated 2017-03-15. 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.

Restated years: each year's figure is from the latest filing that reports it. The company later restated the year ended 2014-12-31 (for example after a spin-off or a discontinued operation), while the year before it was last reported on the old basis. Changes across those points are marked n/c (not comparable), and growth rates are not computed across them.

153.10M
As of 2025-12-31
201.92M
As of 2026-06-30
2010-12-31: 18.37M2011-12-31: 47.14M2012-12-31: 82.92M2013-12-31: 109.43M2014-12-31: 109.43M2015-12-31: 8.10M2016-12-31: 1.27M2017-12-31: 5.77M2018-12-31: 440.5K2019-12-31: 5.08M2020-12-31: 14.25M2021-12-31: 15.90M2022-12-31: 21.01M2023-12-31: 32.13M2024-12-31: 73.98M2025-12-31: 153.10M153.10M
2010-12-31 Shares Outstanding (shares) 2025-12-31

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

Period endedShares OutstandingChange YoYSource filing
2025-12-31153.10M+107.0%2026-03-19, Balance as of period end
2024-12-3173.98M+130.2%2026-03-19, Balance as of period end
2023-12-3132.13Mn/c2025-03-20, Balance as of period end
2022-12-3121.01M+32.1%2024-03-28, Balance as of period end
2021-12-3115.90M+11.5%2023-03-16, Balance as of period end
2020-12-3114.25M+180.6%2022-03-31, Balance as of period end
2019-12-315.08Mn/m2021-03-23, Balance as of period end
2018-12-31440.5K-92.4%2020-03-13, Balance as of period end
2017-12-315.77M+354.6%2019-03-22, Balance as of period end
2016-12-311.27M-84.3%2018-04-13, Balance as of period end
2015-12-318.10Mn/c2017-03-15, Balance as of period end
2014-12-31109.43Mn/c2016-04-15, Balance as of period end
2013-12-31109.43M+32.0%2015-03-05, Balance as of period end
2012-12-3182.92M+75.9%2014-03-17, Balance as of period end
2011-12-3147.14M+156.6%2013-03-12, Balance as of period end
2010-12-3118.37Mn/a2012-03-28, Balance as of period end