Comparable stake leader
Beach Mhc 15
SEC ownership of CFSB Bancorp, Inc. /MA/
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001879103.
Disclosed value leader
Beach Mhc 15
Comparable rows
0/1
Latest evidence
12 Jan 2022
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Beach Mhc 15
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
12 Jan 2022
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001879103
- Issuer location
- Quincy, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CFSB Bancorp, Inc. /MA/ (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
Beach Mhc 15
Disclosed value leader
Beach Mhc 15
Comparable rows
0/1
Latest evidence
12 Jan 2022
3/4/5
Highest disclosed value: $32,031,044
1 rows are not safely comparable across share classes.
Quick read
Beach Mhc 15 has the largest disclosed position value at $32.03M.
0 of 1 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 Beach Mhc 15's linked filing trail.
Disclosed position value
Top 1
Beach Mhc 15
$32.03M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-1 of 1 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Beach Mhc 15 |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$32,031,044
3,586,903 shares
|
— | 12 Jan 2022 |
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
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 20 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| 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 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to CFSB Bancorp, Inc. /MA/. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Beach Mhc 15
Net 12M change
$0
Latest report
31 Oct 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Beach Mhc 15 | 10%+ Owner | $32,031,044 | Mixed | 12 Jan 2022 | ||
| William R. Esselystyn | VP-Information Systems | $0 | Mixed | 31 Oct 2025 | ||
| Paul N. Baharian | Director | $0 | Mixed | 31 Oct 2025 | ||
| Mary Kuropatkin | VP-Retail Banking | $0 | Mixed | 31 Oct 2025 | ||
| Stephen D. Marini | Director | $0 | Mixed | 31 Oct 2025 | ||
| Michael E. McFarland | President and CEO, Director | $0 | Mixed | 31 Oct 2025 | ||
| James M. O'Leary Jr. | Director | $0 | Mixed | 31 Oct 2025 | ||
| Tracy L. Wilson | Director | $0 | Mixed | 31 Oct 2025 | ||
| Robert Guarnieri | Director | $0 | Mixed | 31 Oct 2025 | ||
| Edward J. Keohane | Director | $0 | Mixed | 31 Oct 2025 | ||
| Susan Shea | Treasurer and COO | $0 | Mixed | 31 Oct 2025 | ||
| Angela Blanchard | VP-Retail Lending | $0 | Mixed | 31 Oct 2025 | ||
| Kemal Denizkurt | VP-Financial Markets | $0 | Mixed | 31 Oct 2025 |
Recent insider transactions for CFSB Bancorp, Inc. /MA/
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Kemal Denizkurt | CFSB | Common Stock | Disposed to Issuer | -100% | -9,301 | 0 | 31 Oct 2025 | By 401(k) | ||
| Kemal Denizkurt | CFSB | Common Stock | Disposed to Issuer | -100% | -2,390 | 0 | 31 Oct 2025 | By ESOP | ||
| Kemal Denizkurt | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| Kemal Denizkurt | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Paul N. Baharian | CFSB | Common Stock | Disposed to Issuer | -100% | -19,000 | 0 | 31 Oct 2025 | By IRA | ||
| Paul N. Baharian | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| Paul N. Baharian | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Susan Shea | CFSB | Common Stock | Disposed to Issuer | -100% | -2,500 | 0 | 31 Oct 2025 | By Spouse | ||
| Susan Shea | CFSB | Common Stock | Disposed to Issuer | -100% | -10,923 | 0 | 31 Oct 2025 | By 401(k) | ||
| Susan Shea | CFSB | Common Stock | Disposed to Issuer | -100% | -3,147 | 0 | 31 Oct 2025 | By ESOP | ||
| Susan Shea | CFSB | Common Stock | Disposed to Issuer | -100% | -18,000 | 0 | 31 Oct 2025 | Direct | ||
| Susan Shea | CFSB | Stock Options | Disposed to Issuer | -100% | -48,000 | 0 | 31 Oct 2025 | Direct | ||
| Michael E. McFarland | CFSB | Common Stock | Disposed to Issuer | -100% | -5,000 | 0 | 31 Oct 2025 | By Spouse | ||
| Michael E. McFarland | CFSB | Common Stock | Disposed to Issuer | -100% | -17,999 | 0 | 31 Oct 2025 | By 401(k) | ||
| Michael E. McFarland | CFSB | Common Stock | Disposed to Issuer | -100% | -4,215 | 0 | 31 Oct 2025 | By ESOP | ||
| Michael E. McFarland | CFSB | Common Stock | Disposed to Issuer | -100% | -24,000 | 0 | 31 Oct 2025 | Direct | ||
| Michael E. McFarland | CFSB | Stock Options | Disposed to Issuer | -100% | -64,000 | 0 | 31 Oct 2025 | Direct | ||
| Angela Blanchard | CFSB | Common Stock | Disposed to Issuer | -100% | -12,540 | 0 | 31 Oct 2025 | By 401(k) | ||
| Angela Blanchard | CFSB | Common Stock | Disposed to Issuer | -100% | -2,191 | 0 | 31 Oct 2025 | By ESOP | ||
| Angela Blanchard | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| Angela Blanchard | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Mary Kuropatkin | CFSB | Common Stock | Disposed to Issuer | -100% | -9,940 | 0 | 31 Oct 2025 | By 401(k) | ||
| Mary Kuropatkin | CFSB | Common Stock | Disposed to Issuer | -100% | -2,381 | 0 | 31 Oct 2025 | By ESOP | ||
| Mary Kuropatkin | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| Mary Kuropatkin | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Edward J. Keohane | CFSB | Common Stock | Disposed to Issuer | -100% | -5,000 | 0 | 31 Oct 2025 | By Spouse's Trust | ||
| Edward J. Keohane | CFSB | Common Stock | Disposed to Issuer | -100% | -10,000 | 0 | 31 Oct 2025 | By Trust | ||
| Edward J. Keohane | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| Edward J. Keohane | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Stephen D. Marini | CFSB | Common Stock | Disposed to Issuer | -100% | -5,000 | 0 | 31 Oct 2025 | By Spouse's Trust | ||
| Stephen D. Marini | CFSB | Common Stock | Disposed to Issuer | -100% | -10,000 | 0 | 31 Oct 2025 | By Trust | ||
| Stephen D. Marini | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| Stephen D. Marini | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| James M. O'Leary Jr. | CFSB | Common Stock | Disposed to Issuer | -100% | -5,000 | 0 | 31 Oct 2025 | By Spouse | ||
| James M. O'Leary Jr. | CFSB | Common Stock | Disposed to Issuer | -100% | -16,000 | 0 | 31 Oct 2025 | Direct | ||
| James M. O'Leary Jr. | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Tracy L. Wilson | CFSB | Common Stock | Disposed to Issuer | -100% | -100 | 0 | 31 Oct 2025 | By Spouse as Custodian for Child | ||
| Tracy L. Wilson | CFSB | Common Stock | Disposed to Issuer | -100% | -100 | 0 | 31 Oct 2025 | By Child | ||
| Tracy L. Wilson | CFSB | Common Stock | Disposed to Issuer | -100% | -11,000 | 0 | 31 Oct 2025 | Direct | ||
| Tracy L. Wilson | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| Robert Guarnieri | CFSB | Common Stock | Disposed to Issuer | -100% | -2,500 | 0 | 31 Oct 2025 | By Spouse | ||
| Robert Guarnieri | CFSB | Common Stock | Disposed to Issuer | -100% | -16,000 | 0 | 31 Oct 2025 | Direct | ||
| Robert Guarnieri | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct | ||
| William R. Esselystyn | CFSB | Common Stock | Disposed to Issuer | -100% | -200 | 0 | 31 Oct 2025 | By Child | ||
| William R. Esselystyn | CFSB | Common Stock | Disposed to Issuer | -100% | -350 | 0 | 31 Oct 2025 | By Spouse | ||
| William R. Esselystyn | CFSB | Common Stock | Disposed to Issuer | -100% | -11,940 | 0 | 31 Oct 2025 | By 401(k) | ||
| William R. Esselystyn | CFSB | Common Stock | Disposed to Issuer | -100% | -2,351 | 0 | 31 Oct 2025 | By ESOP | ||
| William R. Esselystyn | CFSB | Common Stock | Disposed to Issuer | -100% | -6,000 | 0 | 31 Oct 2025 | Direct | ||
| William R. Esselystyn | CFSB | Stock Options | Disposed to Issuer | -100% | -14,000 | 0 | 31 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.