Arch Capital Group Ltd. (ACGL): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 3-for-1, first reflected in a filing dated 2011-08-05; 3-for-1, first reflected in a filing dated 2018-08-08. 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.

359.00M

As of 2025-12-31

-1.0%

3-year compound annual growth

-2.5%

5-year compound annual growth

2009-12-31 Shares Outstanding (shares) 2025-12-31

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

Period ended	Shares Outstanding	Change YoY	Source filing
2025-12-31	359.00M	-4.6%	2026-02-26, Balance as of period end
2024-12-31	376.40M	+0.8%	2026-02-26, Balance as of period end
2023-12-31	373.40M	+0.8%	2026-02-26, Balance as of period end
2022-12-31	370.40M	-2.2%	2025-02-27, Balance as of period end
2021-12-31	378.90M	-6.8%	2024-02-23, Balance as of period end
2020-12-31	406.72M	+0.3%	2023-02-24, Balance as of period end
2019-12-31	405.62M	+0.8%	2022-02-25, Balance as of period end
2018-12-31	402.45M	+2.4%	2021-02-26, Balance as of period end
2017-12-31	392.93M	+6.7%	2020-02-28, Balance as of period end
2016-12-31	368.36M	n/c	2019-02-28, Balance as of period end
2015-12-31	122.63M	-3.7%	2018-02-28, Balance as of period end
2014-12-31	127.37M	-4.7%	2017-03-01, Balance as of period end
2013-12-31	133.67M	-0.1%	2016-02-26, Balance as of period end
2012-12-31	133.84M	-0.4%	2015-02-27, Balance as of period end
2011-12-31	134.36M	-3.8%	2014-03-03, Balance as of period end
2010-12-31	139.63M	-15.0%	2013-03-01, Balance as of period end
2009-12-31	164.29M	n/a	2012-02-29, Balance as of period end