SEC ownership of FS Bancorp, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001530249.

Comparable stake leader

De Lisle Partners LLP

Disclosed value leader

T. Rowe Price Investment Management, Inc.

Comparable rows

50/50

Latest evidence

06 May 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
De Lisle Partners LLP
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
06 May 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001530249
Issuer location
Mountlake Terrace, WA

Ownership snapshot

Top shareholders of FS Bancorp, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
De Lisle Partners LLP
Disclosed value leader
T. Rowe Price Investment ...
Comparable rows
50/50
Latest evidence
06 May 2026
13D/G 13F 3/4/5 Lead comparable stake: 5.1% 13D/G row: De Lisle Partners LLP Showing 1-8 of 50 holder rows.

Quick read

De Lisle Partners LLP leads the comparable SEC ownership view at 5.1%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens De Lisle Partners LLP's linked filing trail.
Comparable ownership Top 5
De Lisle Partners LLP 5.1%
Donn C. Costa 0.19%
T. Rowe Price Investment Manageme... 13%
BlackRock, Inc. 5.8%
DIMENSIONAL FUND ADVISORS LP 5.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
De Lisle Partners LLP
13D/G 13F
Company
5.1%
$15,869,018
385,451 shares
$0 31 Dec 2025
Donn C. Costa
3/4/5
Chief Home Lending, EVP
0.19%
$555,541
14,396 shares
06 May 2026
T. Rowe Price Investment Management, Inc.
13F
Company
13F
13%
$38,511,000
997,943 shares
31 Mar 2026
BlackRock, Inc.
13F
Company
13F
5.8%
$16,855,611
436,787 shares
31 Mar 2026
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
5.5%
$16,142,214
418,288 shares
31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
4.3%
$12,551,513
325,253 shares
31 Mar 2026
Pacific Ridge Capital Partners, LLC
13F
Company
13F
2.8%
$8,030,347
208,094 shares
31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
2%
$5,905,981
153,008 shares
31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$1,631,198.

Buys
$0
Insiders: 0
Sells
$1,631,198
Insiders: 2
Net
-$1,631,198
Shares: -40,032
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 40,032
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 2,532 $0 $101,261 -$101,261
9-12 0 37,500 $0 $1,529,937 -$1,529,937

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 24 reporting-owner rows connected to FS Bancorp, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
24
Largest Forms 3/4/5 holder
Ted A. Leech
Net 12M change
-$1,631,198
Latest report
06 May 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Ted A. Leech Director, Chairman of the Board $3,045,059 Mixed 06 May 2026
Dennis V O'Leary Chief Lending Officer $2,773,884 Mixed 09 May 2023
Matthew D. Mullet Pres & CEO of 1st Security Ban $1,551,278 Mixed 06 May 2026
Joseph C. Adams Director/CEO-FS Bancorp, Inc., Director $771,722 -$1,529,937 -66% Mixed 06 May 2026
Michael J. Mansfield Director $758,022 Mixed 06 May 2026
Margaret R. Piesik Director $658,604 Mixed 15 Aug 2024
Donn C. Costa Chief Home Lending, EVP $555,541 Mixed 06 May 2026
Erin Burr CRO & CRA Officer, EVP $431,860 Mixed 06 May 2026
Joseph P. Zavaglia Director $399,058 Mixed 06 May 2026
Shana Allen Chief Information Officer, EVP $350,627 Mixed 06 May 2026
Sean McCormick Chief Credit Admin. Officer $329,574 Mixed 15 Aug 2025
Victoria Jarman CHR & WOW! Officer, EVP $298,647 Mixed 06 May 2026
Pamela Marie Andrews Director $193,837 Mixed 06 May 2026
Robert B. Fuller Retired Chief Credit Officer $178,144 Mixed 25 Aug 2023
FS Bancorp, Inc. Chief Credit Officer $178,144 Mixed 04 Aug 2023
Terri L. Degner Director $144,432 Mixed 15 Aug 2025
Stephanie Nicklaus Chief Credit Officer $122,520 Mixed 17 Aug 2023
Kelli Nielsen Chief Retail Banking, EVP $108,359 Mixed 06 May 2026
Robert A. Nesbitt CCO Officer/EVP $58,810 Mixed 06 May 2026
Ben Crowl Chief Lending Officer, EVP $43,683 Mixed 06 May 2026

Recent insider transactions for FS Bancorp, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Robert A. Nesbitt FSBW Common Stock Other 7.11% 14 211 06 May 2026 Direct
Donn C. Costa FSBW Common Stock Other 6.93% 330 5,089 06 May 2026 Direct
Matthew D. Mullet FSBW Common Stock Other 15.5% 218 1,622 06 May 2026 Direct
Michael J. Mansfield FSBW Common Stock Other 9.2% 423 5,023 06 May 2026 Direct
Ted A. Leech FSBW Common Stock Other 100.5% 212 423 06 May 2026 Direct
Marina Cofer-Wildsmith FSBW Common Stock Other 88.7% 393 836 06 May 2026 Direct
Victoria Jarman FSBW Common Stock Other 5.84% 91 1,650 06 May 2026 Direct
Joseph P. Zavaglia FSBW Common Stock Other 9% 60 727 06 May 2026 Direct
Phillip Dean Whittington FSBW Common Stock Other 18.2% 91 591 06 May 2026 Direct
Shana Allen FSBW Common Stock Other 12.7% 36 320 06 May 2026 Direct
Ben Crowl FSBW Common Stock Other 14.1% 18 146 06 May 2026 Direct
Joseph C. Adams FSBW Common Stock Other 9.05% 181 2,180 06 May 2026 Direct
Pamela Marie Andrews FSBW Common Stock Other 9.2% 423 5,023 06 May 2026 Direct
Kelli Nielsen FSBW Common Stock Other 16.5% 18 127 06 May 2026 Direct
Erin Burr FSBW Common Stock Other 7.04% 218 3,316 06 May 2026 Direct
Matthew D. Mullet FSBW Common Stock Other 17.9% 213 1,404 06 Feb 2026 Direct
Michael J. Mansfield FSBW Common Stock Other 9.89% 414 4,600 06 Feb 2026 Direct
Joseph P. Zavaglia FSBW Common Stock Other 9.7% 59 667 06 Feb 2026 Direct
Pamela Marie Andrews FSBW Common Stock Other 9.89% 414 4,600 06 Feb 2026 Direct
Shana Allen FSBW Common Stock Other 14.1% 35 284 06 Feb 2026 Direct
Kelli Nielsen FSBW Common Stock Other 19.8% 18 109 06 Feb 2026 Direct
Ted A. Leech FSBW Common Stock Other 5175% 207 211 06 Feb 2026 Direct
Phillip Dean Whittington FSBW Common Stock Other 21.6% 89 500 06 Feb 2026 Direct
Marina Cofer-Wildsmith FSBW Common Stock Other 443 443 06 Feb 2026 Direct
Donn C. Costa FSBW Common Stock Other 11.9% 505 4,759 06 Feb 2026 Direct
Joseph C. Adams FSBW Common Stock Other 9.71% 177 1,999 06 Feb 2026 Direct
Ben Crowl FSBW Common Stock Other 16.4% 18 128 06 Feb 2026 Direct
Robert A. Nesbitt FSBW Common Stock Other 7.07% 13 197 06 Feb 2026 Direct
Erin Burr FSBW Common Stock Other 7.38% 213 3,098 06 Feb 2026 Direct
Victoria Jarman FSBW Common Stock Other 6.05% 89 1,559 02 Feb 2026 Direct
Marina Cofer-Wildsmith FSBW Common Stock Sale -100% $94,821 $40.00 -2,371 0 21 Nov 2025 Direct
Marina Cofer-Wildsmith FSBW Common Stock Sale -6.36% $6,440 $40.00 -161 2,371 20 Nov 2025 Direct
Marina Cofer-Wildsmith FSBW Common Stock Tax liability -60.4% -8,543 5,590 13 Nov 2025 Direct
Shana Allen FSBW Common Stock Other 18.6% 39 249 06 Nov 2025 Direct
Joseph. P. Zavaglia FSBW Common Stock Other 12.2% 66 608 06 Nov 2025 Direct
Robert A. Nesbitt FSBW Common Stock Other 8.88% 15 184 06 Nov 2025 Direct
Ben Crowl FSBW Common Stock Other 22.2% 20 110 06 Nov 2025 Direct
Matthew D. Mullet FSBW Common Stock Other 24.8% 237 1,191 06 Nov 2025 Direct
Victoria Jarman FSBW Common Stock Other 7.22% 99 1,470 06 Nov 2025 Direct
Erin Burr FSBW Common Stock Other 7.85% 210 2,885 06 Nov 2025 Direct
Ted A. Leech FSBW Common Stock Other 34.8% 230 890 06 Nov 2025 Direct
Kelli Nielsen FSBW Common Stock Other 28.2% 20 91 06 Nov 2025 Direct
Phillip Dean Whittington FSBW Common Stock Other 31.7% 99 411 06 Nov 2025 Direct
Joseph C. Adams FSBW Common Stock Other 12.1% 197 1,822 06 Nov 2025 Direct
Matthew D. Mullet FSBW Common Stock Options Exercise 2.99% 3,090 106,340 05 Nov 2025 Direct
Matthew D. Mullet FSBW Stock Options (Right to Buy) Options Exercise -4.2% -3,090 70,500 05 Nov 2025 Direct
Joseph C. Adams FSBW Common Stock Sale -13% $612,642 $41.83 -14,646 97,775 27 Aug 2025 Direct
Joseph C. Adams FSBW Common Stock Sale -0.36% $16,771 $41.72 -402 112,421 22 Aug 2025 Direct
Joseph C. Adams FSBW Common Stock Sale -5.59% $267,027 $40.01 -6,674 112,823 21 Aug 2025 Direct
Joseph C. Adams FSBW Common Stock Sale -3.95% $197,199 $40.13 -4,914 119,497 20 Aug 2025 Direct
* marks a reported price that did not pass the local price check.
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