FS Bancorp, Inc. (FSBW) Insider Ownership

Historic Ownership Trends

According to recent filings covering the 90 days ending December 31, 2025, the three most significant insider holders at FS Bancorp are Director Michael J. Mansfield (69.68K shares), Director/Ceo Joseph C. Adams (18.35K shares), Chief Home Lending And Evp Donn C Costa (15.71K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Michael J. Mansfield 69,682 19 Aug, 2025
Dennis V O'Leary Chief Lending Officer 57,249 17 Aug, 2022
Joseph C. Adams Director/Ceo 18,352 07 Nov, 2025
Donn C Costa Chief Home Lending And Evp 15,705 07 Aug, 2025
Margaret R. Piesik 14,918 19 Aug, 2024
Pamela Marie Andrews 12,000 19 Aug, 2025
Matthew D. Mullet President 11,259 07 Nov, 2025
Erin Burr Cro & Cra Officer And Evp 10,190 07 Nov, 2025
Victoria Jarman Chr & Wow! Officer And Evp 7,118 07 Nov, 2025
Robert B Fuller Retired Chief Credit Officer 5,656 28 Aug, 2023
Sean Mccormick Chief Credit Admin. Officer 3,600 19 Aug, 2025
Terri L Degner 3,560 19 Aug, 2025
Kelli Nielsen Chief Retail Banking And Evp 2,577 07 Nov, 2025
Mark Tueffers 1,000 05 Jun, 2022
Ted A. Leech 890 08 Nov, 2025
Joseph P. Zavaglia 608 07 Nov, 2025
Phillip Dean Whittington Chief Financial Officer 411 07 Nov, 2025
Shana Allen Chief Information Officer And Evp 248 10 Nov, 2025
Robert A Nesbitt Cco Officer/Evp 184 10 Nov, 2025
Ben Crowl Chief Lending Officer And Evp 110 10 Nov, 2025
Lisa Cleary Chief Operating Officer 29 08 Nov, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
20 Nov, 2025 Marina Cofer-Wildsmith Common Stock D 161 $40.00 2,371 D S
21 Nov, 2025 Marina Cofer-Wildsmith Common Stock D 2,371 $40.00 0 D S
13 Nov, 2025 Marina Cofer-Wildsmith Common Stock D 3,807 $40.00 5,590 D S
13 Nov, 2025 Marina Cofer-Wildsmith Common Stock A 6,783 $29.30 12,373 D M
13 Nov, 2025 Marina Cofer-Wildsmith Common Stock D 8,543 $40.08 5,590 D F
13 Nov, 2025 Marina Cofer-Wildsmith Common Stock A 800 $24.37 13,173 D M
14 Nov, 2025 Marina Cofer-Wildsmith Common Stock A 17 $29.30 5,607 D M
14 Nov, 2025 Marina Cofer-Wildsmith Common Stock D 17 $40.05 5,590 D S
13 Nov, 2025 Marina Cofer-Wildsmith Common Stock A 960 $21.35 14,133 D M
13 Nov, 2025 Marina Cofer-Wildsmith Common Stock D 5,957 $40.08 8,176 D F
06 Nov, 2025 Robert A Nesbitt Common Stock A 15 $38.01 184 D J
06 Nov, 2025 Shana Allen Common Stock A 39 $38.01 248 D J
06 Nov, 2025 Ben Crowl Common Stock A 20 $38.01 110 D J
06 Nov, 2025 Erin Burr Common Stock A 210 $38.01 2,885 D J
06 Nov, 2025 Ted A. Leech Common Stock A 230 $38.01 890 D J
06 Nov, 2025 Victoria Jarman Common Stock A 99 $38.01 1,470 D J
06 Nov, 2025 Joseph C. Adams Common Stock A 197 $38.01 1,822 D J
06 Nov, 2025 Joseph P. Zavaglia Common Stock A 66 $38.01 608 D J
06 Nov, 2025 Kelli Nielsen Common Stock A 20 $38.01 91 D J
06 Nov, 2025 Phillip Dean Whittington Common Stock A 99 $38.01 411 D J