CFSB Bancorp, Inc. /MA/ SEC EDGAR Filings (CIK 0001879103)

SEC EDGAR filings, ownership reports, and insider transactions for CFSB Bancorp, Inc. /MA/.

Symbol
CFSB
Industry
Savings Institution, Federally Chartered (Office Of Finance)
Business address
15 Beach Street, Quincy, MA, 02170
State of incorporation
MA
Fiscal year end
30 June
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CFSB Bancorp, Inc. /MA/ has filed 117 SEC EDGAR filings since 09 Sep 2021

Latest Filings

Recent SEC filings for CFSB Bancorp, Inc. /MA/ including 15-12G, 25-NSE, 8-K and more.

Form type Document Filing Description Filing date Reporting date File number(s)
15-12G Open 15-12G document View SEC filing for 15-12G CFSB BANCORP, INC. FORM 15-12B 13 Nov 2025 001-41220
25-NSE Open 25-NSE document View SEC filing for 25-NSE 03 Nov 2025 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 03 Nov 2025 31 Oct 2025 001-41220
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
S-8 POS Open S-8 POS document View SEC filing for S-8 POS POST-EFFECTIVE AMENDMENT NO.1 TO FORM S-8 REGISTRATION STATEMENT CFSB BANCORP, I 31 Oct 2025 333-262123
S-8 POS Open S-8 POS document View SEC filing for S-8 POS POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT CFSB BANCORP, 31 Oct 2025 333-269908
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 31 Oct 2025 31 Oct 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Oct 2025 21 Oct 2025 001-41220
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 18 Sep 2025 30 Jun 2025 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Sep 2025 16 Sep 2025 001-41220
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 05 Sep 2025 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Sep 2025 05 Sep 2025 001-41220
DEFM14A Open DEFM14A document View SEC filing for DEFM14A DEFM14A 15 Aug 2025 001-41220
PREM14A Open PREM14A document View SEC filing for PREM14A PREM14A 18 Jul 2025 18 Jul 2025 001-41220
11-K Open 11-K document View SEC filing for 11-K CFSB BANCORP, INC. FORM 11-K DECEMBER 31, 2024 18 Jun 2025 31 Dec 2024 001-41220
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 21 May 2025 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 May 2025 20 May 2025 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 May 2025 31 Mar 2025 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Apr 2025 29 Apr 2025 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Feb 2025 31 Dec 2024 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Jan 2025 29 Jan 2025 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Nov 2024 21 Nov 2024 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 13 Nov 2024 30 Sep 2024 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Oct 2024 29 Oct 2024 001-41220
ARS Open ARS document View SEC filing for ARS ARS 15 Oct 2024 30 Jun 2024 001-41220
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 15 Oct 2024 21 Nov 2024 001-41220
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 18 Sep 2024 30 Jun 2024 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Jul 2024 30 Jul 2024 001-41220
11-K Open 11-K document View SEC filing for 11-K CFSB BANCORP, INC. FORM 11-K DECEMBER 31, 2023 27 Jun 2024 31 Dec 2023 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2024 31 Mar 2024 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Apr 2024 29 Apr 2024 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CFSB BANCORP, INC. FORM 8-K APRIL 5, 2024 05 Apr 2024 05 Apr 2024 001-41220
4 Open 4 document View SEC filing for 4 FORM 4 19 Mar 2024 18 Mar 2024
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Feb 2024 31 Dec 2023 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Jan 2024 26 Jan 2024 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Nov 2023 21 Nov 2023 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2023 30 Sep 2023 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Oct 2023 27 Oct 2023 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Oct 2023 30 Oct 2023 001-41220
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 17 Oct 2023 21 Nov 2023 001-41220
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 20 Sep 2023 30 Jun 2023 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Jul 2023 25 Jul 2023 001-41220
11-K Open 11-K document View SEC filing for 11-K CFSB BANCORP, INC. FORM 11-K DECEMBER 31, 2022 28 Jun 2023 31 Dec 2022 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2023 31 Mar 2023 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Apr 2023 25 Apr 2023 001-41220
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2023 22 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2023 22 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2023 22 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2023 22 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2023 22 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2023 22 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2023 22 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2023 22 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2023 22 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2023 22 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2023 22 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2023 22 Feb 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CFSB BANCORP, INC. FORM 8-K 22 Feb 2023 21 Feb 2023 001-41220
S-8 Open S-8 document View SEC filing for S-8 CFSB BANCORP, INC. FORM S-8 FEBRUARY 22, 2023 22 Feb 2023 333-269908
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Feb 2023 31 Dec 2022 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 24 Jan 2023 24 Jan 2023 001-41220
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 13 Jan 2023 21 Feb 2023 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2022 30 Sep 2022 001-41220
4 Open 4 document View SEC filing for 4 FORM 4 26 Oct 2022 25 Oct 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Oct 2022 21 Oct 2022 001-41220
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Sep 2022 30 Jun 2022 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Sep 2022 14 Sep 2022 001-41220
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 27 May 2022 18 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 20 May 2022 18 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 May 2022 12 May 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 May 2022 31 Mar 2022 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 May 2022 10 May 2022 001-41220
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Feb 2022 11 Feb 2022 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Feb 2022 31 Dec 2021 001-41220
4 Open 4 document View SEC filing for 4 FORM 4 21 Jan 2022 14 Jan 2022
EFFECT Open EFFECT document View SEC filing for EFFECT 14 Jan 2022 333-259406
POS AM Open POS AM document View SEC filing for POS AM CFSB FORM S-1 13 Jan 2022 333-259406
3 Open 3 document View SEC filing for 3 FORM 3 13 Jan 2022 12 Jan 2022
S-8 Open S-8 document View SEC filing for S-8 12 Jan 2022 333-262123
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 12 Jan 2022 12 Jan 2022 001-41220
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2011
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 12 Jan 2022 12 Jan 2022
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D JANUARY 12, 2022 12 Jan 2022 005-93235
CERT Open CERT document View SEC filing for CERT 8A CERTIFICATION 12 Jan 2022 001-41220
8-A12B Open 8-A12B document View SEC filing for 8-A12B CFSB BANCORP, INC. FORM 8-A JANUARY 2022 12 Jan 2022 001-41220
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 22 Dec 2021 30 Sep 2021 333-259406
424B3 Open 424B3 document View SEC filing for 424B3 424B3 19 Nov 2021 333-259406
424B3 Open 424B3 document View SEC filing for 424B3 424B3 19 Nov 2021 333-259406
EFFECT Open EFFECT document View SEC filing for EFFECT 10 Nov 2021 333-259406
8-K Open 8-K document View SEC filing for 8-K 8-K 10 Nov 2021 10 Nov 2021 333-259406
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Nov 2021
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Nov 2021
S-1/A Open S-1/A document View SEC filing for S-1/A S-1/A 05 Nov 2021 333-259406
CORRESP Open CORRESP document View SEC filing for CORRESP 26 Oct 2021
S-1/A Open S-1/A document View SEC filing for S-1/A S-1/A 26 Oct 2021 333-259406
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 05 Oct 2021
S-1 Open S-1 document View SEC filing for S-1 S-1 09 Sep 2021 333-259406

About this filer

CFSB Bancorp, Inc. /MA/ files with the SEC under CIK 0001879103. This page aggregates EDGAR filings and related ownership activity.

Industry: Savings Institution, Federally Chartered.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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