Phio Pharmaceuticals Corp. (PHIO): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 1-for-12, first reflected in a filing dated 2023-03-22; 1-for-9, first reflected in a filing dated 2024-08-14. 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 years ended 2014-12-31, 2017-12-31 (for example after a spin-off or a discontinued operation), while the year before each 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.

11.62M

As of 2025-12-31

11.62M

As of 2026-06-30

2011-12-31 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	11.62M	+570.1%	2026-03-05, Balance as of period end
2024-12-31	1.73M	n/c	2026-03-05, Balance as of period end
2023-12-31	416.4K	n/c	2025-03-31, Balance as of period end
2022-12-31	1.14M	+1.0%	2024-04-01, Balance as of period end
2021-12-31	1.13M	n/c	2023-03-22, Balance as of period end
2020-12-31	5.78M	+763.6%	2022-03-22, Balance as of period end
2019-12-31	669.4K	n/c	2021-03-25, Balance as of period end
2018-12-31	342.6K	-85.9%	2020-03-26, Balance as of period end
2017-12-31	2.43M	n/c	2019-03-27, Balance as of period end
2016-12-31	1.30M	n/c	2018-03-26, Balance as of period end
2015-12-31	6.53M	-70.3%	2017-03-30, Balance as of period end
2014-12-31	21.98M	n/c	2016-03-30, Balance as of period end
2013-12-31	11.79M	+122.9%	2015-03-30, Balance as of period end
2012-12-31	5.29M	-94.7%	2014-03-28, Balance as of period end
2011-12-31	100.44M	n/a	2013-03-29, Balance as of period end