Winchester Bancorp Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:WSBK Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
10 Jun 25	BuyUS$9,671	William Hood	Individual	1,050	US$9.21
14 May 25	BuyUS$47,926	William Hood	Individual	5,000	US$9.60
08 May 25	BuyUS$193,208	William Hood	Individual	20,000	US$9.70
05 May 25	BuyUS$244,155	John Carroll	Individual	25,000	US$9.82

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of WSBK?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	301,560	3.27%
Institutions	708,264	7.69%
General Public	3,086,095	33.5%
Private Companies	5,112,457	55.5%

Dilution of Shares: WSBK only recently listed within the past 12 months

Top Shareholders

Top 25 shareholders own 66.07% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
55%	Winchester Bancorp, MHC	5,112,457	US$49.0m	0%	no data
2.01%	Mangrove Partners IM, LLC	186,949	US$1.8m	10.6%	0.14%
0.89%	M3F, Inc.	82,552	US$790.9k	39.2%	0.22%
0.81%	Carole Pierce Connolly	75,000	US$718.5k	0%	no data
0.75%	Northstar Financial Companies, Inc.	70,000	US$670.6k	0%	0.62%
0.74%	The Vanguard Group, Inc.	69,167	US$662.6k	0.27%	no data
0.59%	Integrated Wealth Concepts LLC	55,000	US$526.9k	0%	no data
0.55%	William Hood	51,050	US$489.1k	0%	no data
0.55%	John Carroll	51,000	US$488.6k	0%	no data
0.54%	Oppenheimer + Close, LLC	50,000	US$479.0k	0%	0.32%
0.48%	Deborah Carson	44,510	US$426.4k	0%	no data
0.38%	Sara Salehpour	35,000	US$335.3k	0%	no data
0.28%	Citadel Advisors LLC	26,438	US$253.3k	-37%	no data
0.27%	Stilwell Value LLC	25,000	US$239.5k	0%	0.16%
0.27%	Paul Cheremka	25,000	US$239.5k	0%	no data
0.26%	Geode Capital Management, LLC	23,896	US$228.9k	13.8%	no data
0.22%	Raymond James Financial, Inc.	20,000	US$191.6k	0%	no data
0.22%	Edward Merritt	20,000	US$191.6k	0%	no data
0.22%	Alan Macdonald	20,000	US$191.6k	0%	no data
0.22%	Elda Heller	20,000	US$191.6k	0%	no data
0.2%	Millennium Management LLC	18,947	US$181.5k	-18.6%	no data
0.17%	EagleClaw Capital Management, LLC	16,000	US$153.3k	0%	0.02%
0.17%	LPL Financial LLC	15,500	US$148.5k	0%	no data
0.16%	John Snow	15,000	US$143.7k	0%	no data
0.14%	LYNCH & Associates, Inc.	13,183	US$126.3k	-27.5%	0.02%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/11/26 23:29
End of Day Share Price	2025/11/26 00:00
Earnings	2025/09/30
Annual Earnings	2025/06/30

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Winchester Bancorp, Inc. is covered by 0 analysts. 0 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.