Fastenal Co (FAST): Weighted Average Diluted Shares

Annual figures by period end, from SEC filings.

Stock splits: 2-for-1, first reflected in a filing dated 2011-07-21; 2-for-1, first reflected in a filing dated 2019-07-16; 2-for-1, first reflected in a filing dated 2025-07-17. 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.

1.15B

Year ended 2025-12-31

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	1.15B	+0.2%	2026-02-05, From 2025-01-01
2024-12-31	1.15B	+0.2%	2026-02-05, From 2024-01-01
2023-12-31	1.15B	n/c	2026-02-05, From 2023-01-01
2022-12-31	575.62M	-0.3%	2025-02-06, From 2022-01-01
2021-12-31	577.12M	+0.3%	2024-02-06, From 2021-01-01
2020-12-31	575.67M	+0.2%	2023-02-07, From 2020-01-01
2019-12-31	574.44M	0.0%	2022-02-07, From 2019-01-01
2018-12-31	574.33M	-0.4%	2021-02-08, From 2018-01-01
2017-12-31	576.69M	n/c	2020-02-06, From 2017-01-01
2016-12-31	289.16M	-1.0%	2019-02-06, From 2016-01-01
2015-12-31	292.05M	-1.8%	2018-02-05, From 2015-01-01
2014-12-31	297.31M	-0.1%	2017-02-06, From 2014-01-01
2013-12-31	297.68M	+0.2%	2016-02-05, From 2013-01-01
2012-12-31	297.15M	+0.4%	2015-02-05, From 2012-01-01
2011-12-31	295.87M	+0.3%	2014-02-06, From 2011-01-01
2010-12-31	294.86M	-0.6%	2013-02-07, From 2010-01-01
2009-12-31	296.72M	n/c	2012-02-09, From 2009-01-01
2008-12-31	148.83M	n/a	2011-02-09, From 2008-01-01