Companies: 10,795·Total market cap: $144.5T
Winchester Bancorp, Inc. Common Stock

Winchester Bancorp, Inc. Common Stock

WSBKNASDAQFinancial Services● Active
$12.74
$-0.11(-0.86%)
Market Cap$114159866
P/E Ratio
52W High$13.385
52W Low$8.76
SEC Filings

Winchester Bancorp, Inc. Common Stock (WSBK) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0002047235 · WSBK · NASDAQ · as of Jun 8, 2026

Filing snapshot

58
Total Filings
4
Latest Form
2026-05-27
Most Recent
2025
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0002047235 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2025-09-17
Fiscal Year End
Sep 17, 2025
Accession No.
0001193125-25-206332
Primary Document
wsbk-20250630.htm
Source: data.sec.gov · CIK 0002047235 · Accession 0001193125-25-206332

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-13
8-KCurrent Report
8-K
2026-04-29Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
10-QQuarterly Report
10-Q
2026-05-13
View
8-KCurrent Report
8-K
2026-04-29
View
10-QQuarterly Report
10-Q
2026-02-11
View
8-KCurrent Report
8-K
2026-01-28
View
8-KCurrent Report
8-K
2025-11-13
View
10-QQuarterly Report
10-Q
2025-11-12
View
8-KCurrent Report
8-K
2025-10-22
View
DEF 14AProxy Statement
DEF 14A
2025-10-10
View
ARSARS
ARS
2025-10-10
View
8-KCurrent Report
8-K
2025-09-17
View
10-KAnnual Report
10-K
2025-09-17
View
8-KCurrent Report
8-K
2025-07-30
View
3Initial Statement of Beneficial Ownership
FORM 3
2025-05-14
View
SCHEDULE 13DSCHEDULE 13D
SCHEDULE 13D
2025-05-14
View
10-QQuarterly Report
10-Q
2025-05-12
View
Showing 1–15 of 49 filingsForm 4 / 144 hidden· 58 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0002047235  |  Exchange: NASDAQ · Financial Services

Winchester Bancorp, Inc. Common Stock (NASDAQ: WSBK) has submitted 58 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2025. As a Financial Services sector company with CIK 0002047235, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Winchester Bancorp, Inc. Common Stock's most comprehensive regulatory disclosure. The most recent Winchester Bancorp, Inc. Common Stock 10-K was filed on 2025-09-17 for fiscal year ending 2025. Historical WSBK 10-K annual reports are available from 2024 through 2025.

Investors researching Winchester Bancorp, Inc. Common Stock SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

WSBK SEC Filings · 8 questions

Winchester Bancorp, Inc. Common Stock (WSBK) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 58 filings and access original documents at no cost. Winchester Bancorp, Inc. Common Stock's CIK is 0002047235.

WSBK SEC filingsWinchester Bancorp, Inc. Common Stock SEC documentsfind WSBK 10-K