Arch Capital Group Ltd. (ACGL): Weighted Average Diluted Shares

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.

375.90M

Year ended 2025-12-31

-0.2%

3-year compound annual growth

-1.7%

5-year compound annual growth

2008-12-31 Weighted Average Diluted Shares (shares) 2025-12-31

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

Period ended	Weighted Average Diluted Shares	Change YoY	Source filing
2025-12-31	375.90M	-1.5%	2026-02-26, From 2025-01-01
2024-12-31	381.80M	+0.8%	2026-02-26, From 2024-01-01
2023-12-31	378.80M	+0.3%	2026-02-26, From 2023-01-01
2022-12-31	377.60M	-5.7%	2025-02-27, From 2022-01-01
2021-12-31	400.30M	-2.4%	2024-02-23, From 2021-01-01
2020-12-31	410.26M	-0.3%	2023-02-24, From 2020-01-01
2019-12-31	411.61M	-0.3%	2022-02-25, From 2019-01-01
2018-12-31	412.91M	-1.2%	2021-02-26, From 2018-01-01
2017-12-31	417.79M	+11.7%	2020-02-28, From 2017-01-01
2016-12-31	374.15M	n/c	2019-02-28, From 2016-01-01
2015-12-31	126.04M	-6.6%	2018-02-28, From 2015-01-01
2014-12-31	134.92M	-0.6%	2017-03-01, From 2014-01-01
2013-12-31	135.78M	-1.8%	2016-02-26, From 2013-01-01
2012-12-31	138.26M	0.0%	2015-02-27, From 2012-01-01
2011-12-31	138.29M	-12.2%	2014-03-03, From 2011-01-01
2010-12-31	157.57M	-15.2%	2013-03-01, From 2010-01-01
2009-12-31	185.78M	n/c	2012-02-29, From 2009-01-01
2008-12-31	64.79M	n/a	2011-02-28, From 2008-01-01