Timberland Bancorp, Inc. TSBK NASDAQ

NASDAQ Global Market • Financial Services • Banks - Regional • US • USD

Timberland Bancorp, Inc. (TSBK) has 20 known insider and institutional holders on record. The largest holder is SAND MICHAEL R with 158,394 shares. Other notable holders include HAMRE CLARENCE E and Yerrington Daniel D.

Over the last 12 months, insiders have made 43 transactions in TSBK stock — 12 buys (valued at RSU Award) and 4 sells (valued at $377.46K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.

TSBK Insider Ownership

Top Holder

SAND MICHAEL R

158,394 shares

Buys (12 mo)

$0.00 value

Sells (12 mo)

$377.46K value

12-Month Transaction Activity

Buy 28%

Sell 9%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Sand Michael R	CEO	158,394	2022-12-13	100%
2	Hamre Clarence E	Director	142,159	2009-02-25	90%
3	Yerrington Daniel D	Officer	112,830	2020-12-29	71%
4	Drugge Robert A	Director	38,845	2025-09-30	25%
5	Brydon Dean J	CEO	35,921	2025-09-24	23%
6	Smith David Alan	Director	18,468	2025-09-24	12%
7	Backstrom Robert	Director	16,339	2004-03-05	10%
8	Parker Jon C	Director	10,000	2022-09-29	6%
9	Fischer Jonathan Arthur	President/coo	6,550	2026-02-06	4%
10	Stoney Michael John	Director	6,000	2025-12-11	4%
11	Van Cise Todd	Chief Credit Officer/evp	5,800	2025-07-30	4%
12	Morris Richard R Jr	Director	5,668	2003-08-01	4%
13	Foster Edward Colman	EVP	5,005	2023-11-08	3%
14	Mason James Craig	Director	5,000	2016-09-29	3%
15	Goldberg Larry David	Director	5,000	2021-03-15	3%
16	Warren Harold L	Director	4,535	2007-10-25	3%
17	Davis James A	Director	4,000	2020-09-24	3%
18	Robbel Ronald A	Director	4,000	2015-09-23	3%
19	Antich Breanne D	Chief Technology Officer/evp	2,900	2026-02-09	2%
20	Basich Marci A	Chief Financial Officer/evp	2,800	2026-02-06	2%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-02-06	Antich Breanne D	Chief Technology Officer/evp	Option Exercise (Sell)	400	$27.40	$10.96K
2026-02-05	Fischer Jonathan Arthur	President/coo	Informative Sell	2,000	$39.50	$79K
2026-02-05	Basich Marci A	Chief Financial Officer/evp	Option Exercise (Sell)	477	$28.23	$13.47K
2026-02-03	Basich Marci A	Chief Financial Officer/evp	Option Exercise (Sell)	376	$28.23	$10.61K
2026-02-02	Basich Marci A	Chief Financial Officer/evp	Option Exercise (Sell)	747	$28.23	$21.09K
2026-02-02	Debord Matthew J	Chief Lending Officer, EVP	Option Exercise (Sell)	1,200	$27.40	$32.88K
2026-01-30	Clinton Andrea M	Director	Option Exercise (Sell)	600	$27.40	$16.44K
2027-09-27	Seath Matthew Douglas	Chief Risk Officer/svp	Unknown	1,000	$27.40	$27.4K
2026-09-28	Seath Matthew Douglas	Chief Risk Officer/svp	Unknown	1,000	$28.23	$28.23K
2026-01-13	Seath Matthew Douglas	Chief Risk Officer/svp	Unknown	-	-	-
2024-09-24	Seath Matthew Douglas	Chief Risk Officer/svp	Unknown	800	$27.14	$21.71K
2023-09-25	Seath Matthew Douglas	Chief Risk Officer/svp	Unknown	800	$31.80	$25.44K
2026-01-13	Sakamoto Kevin John	Chief Credit Officer/svp	Unknown	-	-	-
2025-12-15	Debord Matthew J	Chief Lending Officer, EVP	Option Exercise (Sell)	195	$16.87	$3.29K
2025-12-11	Stoney Michael John	Director	Option Exercise (Sell)	1,000	$15.67	$15.67K
2025-09-26	Antich Breanne D	Chief Technology Officer/evp	Tax Withholding of RSU	64	$34.20	$2.19K
2025-09-26	Leodler Kathy D	Director	Tax Withholding of RSU	200	$34.20	$6.84K
2025-09-26	Stoney Michael John	Director	Tax Withholding of RSU	74	$34.20	$2.53K
2025-09-26	Drugge Robert A	Director	Tax Withholding of RSU	50	$34.20	$1.71K
2025-09-24	Antich Breanne D	Chief Technology Officer/evp	Tax Withholding of RSU	95	$34.40	$3.27K
2025-09-24	Leodler Kathy D	Director	Tax Withholding of RSU	215	$34.40	$7.4K
2025-09-24	Stoney Michael John	Director	Tax Withholding of RSU	81	$34.40	$2.79K
2025-09-24	Drugge Robert A	Director	Tax Withholding of RSU	50	-	-
2025-09-23	Debord Matthew J	Chief Lending Officer/evp	RSU Award	2,000	-	-
2025-09-23	Antich Breanne D	Chief Technology Officer/evp	RSU Award	2,000	-	-