Todd A. Kidder - 11 Jun 2026 Form 4 Insider Report for Catalyst Bancorp, Inc. (CLST)

Reporting relationship: Director, CHAIRMAN OF THE BOARD
Issuer ticker: CLST
Reported as of: 11 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 11 Jun 2026, 19:39:25 UTC
Prior SEC filing: 12 Jun 2025
Source filing: View source filing
Reporting owner signature: /s/ Jutta Codori by P.O.A. for Todd A Kidder

Key filing fact

Todd A. Kidder filed Form 4 for Catalyst Bancorp, Inc. (CLST) on 11 Jun 2026.

Key facts

This page summarizes Todd A. Kidder's Form 4 filing for Catalyst Bancorp, Inc. (CLST).
2 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 11 Jun 2026, 19:39.

Change

Previous filing in this sequence was filed on 12 Jun 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001885824 Primary reporting owner

Kidder Todd A.

Relationship: Director, CHAIRMAN OF THE BOARD
Address: C/O CATALYST BANCORP INC, 235 N COURT ST, OPELOUSAS
Signature: /s/ Jutta Codori by P.O.A. for Todd A Kidder
Signature date: 11 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CLST transaction

Common Stock

Award

Transaction value
Shares: +1,058
Change %: +5.4%
Price: $0.000000^*
Shares after: 20,580
Date: 10 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F3

CLST holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,000
Date: 11 Jun 2026
Ownership: By spouse

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CLST transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +2,645
Change %
Price: $0.000000^*
Shares after: 2,645
Date: 10 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,645
Exercise price: $15.96
Footnotes: F6

CLST holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 21,160
Date: 11 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 21,160
Exercise price: $13.30
Footnotes: F4

CLST holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,645
Date: 11 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,645
Exercise price: $12.08
Footnotes: F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Represents the grant of shares pursuant to the Issuer's 2022 Recognition and Retention Plan and Trust Agreement that vest at 20% per year commencing on June 10, 2027.

Footnote F2

Includes 847 shares granted pursuant to the Issuer's 2022 Recognition and Retention Plan and Trust Agreement that reflect the unvested portion of a grant amount originally covering 1,058 shares that commenced vesting 20% per year on June 10, 2026.

Footnote F3

Includes 3,388 shares granted pursuant to the Issuer's 2022 Recognition and Retention Plan and Trust Agreement that reflect the unvested portion of a grant amount originally covering 8,464 shares that commenced vesting 20% per year on September 1, 2023.

Footnote F4

These options are vesting at a rate of 20% per year that commenced on September 1, 2023.

Footnote F5

These options are vesting at a rate of 20% per year that commenced on June 10, 2026.

Footnote F6

These options vest at a rate of 20% per year commencing on June 10, 2027.