Power Integrations Inc (POWI): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 2-for-1, first reflected in a filing dated 2020-10-29. 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.

55.34M

As of 2025-12-31

55.78M

As of 2026-06-30

-1.0%

3-year compound annual growth

-1.6%

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	55.34M	-2.6%	2026-02-06, Balance as of period end
2024-12-31	56.84M	+0.2%	2026-02-06, Balance as of period end
2023-12-31	56.74M	-0.4%	2025-02-07, Balance as of period end
2022-12-31	56.96M	-4.9%	2024-02-12, Balance as of period end
2021-12-31	59.91M	0.0%	2023-02-07, Balance as of period end
2020-12-31	59.91M	+1.8%	2022-02-07, Balance as of period end
2019-12-31	58.86M	n/c	2021-02-05, Balance as of period end
2018-12-31	28.89M	-3.0%	2020-02-07, Balance as of period end
2017-12-31	29.78M	+1.8%	2019-02-13, Balance as of period end
2016-12-31	29.25M	+2.1%	2018-02-14, Balance as of period end
2015-12-31	28.65M	-1.9%	2017-02-08, Balance as of period end
2014-12-31	29.21M	-2.7%	2016-02-11, Balance as of period end
2013-12-31	30.02M	+5.2%	2015-02-10, Balance as of period end
2012-12-31	28.54M	+1.7%	2014-02-13, Balance as of period end
2011-12-31	28.07M	-1.1%	2013-02-22, Balance as of period end
2010-12-31	28.38M	+4.0%	2012-02-29, Balance as of period end
2009-12-31	27.28M	n/a	2011-02-25, Balance as of period end