FS Bancorp, Inc. (FSBW) Insider Ownership

Based on data from the past 90 days ending January 21, 2026, FS Bancorp's three largest insider shareholders are Director Michael J. Mansfield (69.68K shares), Chief Lending Officer Dennis V O'Leary (57.25K shares), Director/Ceo Joseph C. Adams (18.35K shares).

• FS Bancorp's (FSBW) total shares are held approximately 60.93% by institutional investors, 7.47% by company insiders, and 31.59% by other and public investors.
• Current insider holdings at FS Bancorp account for 7.47% of total shares outstanding as of January 21, 2026, totaling roughly 590.39K shares from the company's 7.90Mn share base.
• Throughout the 90-day span concluding January 21, 2026, FS Bancorp's insider stake increased 272.21%, as collective insider positions growing from 158.62K shares to 590.39K shares.
• Over the past 90 days through January 21, 2026, Director Marina Cofer-Wildsmith demonstrated the strongest insider purchase conviction at FS Bancorp, adding 8.56K shares to their position.
• As of January 21, 2026, Director Marina Cofer-Wildsmith executed the most significant insider divestiture at FS Bancorp, disposing of 23.39K shares over the last 90-day period.