Joseph B. Zanco - 01 Sep 2025 Form 4 Insider Report for Catalyst Bancorp, Inc. (CLST)

Role
PRESIDENT AND CEO, Director
Signature
/s/ Jutta Codori by P.O.A. Joseph B. Zanco
Issuer symbol
CLST
Transactions as of
01 Sep 2025
Net transactions value
-$14,857
Form type
4
Filing time
02 Sep 2025, 17:22:54 UTC
Previous filing
12 Jun 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Zanco Joseph B PRESIDENT AND CEO, Director C/O CATALYST BANCORP INC, 235 N COURT ST, OPELOUSAS /s/ Jutta Codori by P.O.A. Joseph B. Zanco 02 Sep 2025 0001318329

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLST Common Stock Tax liability $14,857 -1,158 -3.4% $12.83 32,870 01 Sep 2025 Direct F1, F2
holding CLST Common Stock 15,000 01 Sep 2025 By Spouse
holding CLST Common Stock 2,459 01 Sep 2025 By 401(k) Plan F3
holding CLST Common Stock 6,474 01 Sep 2025 By ESOP F4
holding CLST Common Stock 22,009 01 Sep 2025 By IRA

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding CLST Stock Option (Right to Buy) 52,900 01 Sep 2025 Common Stock 52,900 $13.30 Direct F5
holding CLST Stock Option (Right to Buy) 13,225 01 Sep 2025 Common Stock 13,225 $12.08 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Disposition solely to meet tax obligation for distribution from stock benefit plan.
F2 Includes 8,464 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 21,160 shares that commenced vesting 20% per year on September 1, 2023.
F3 Includes shares acquired in the Catalyst Bank 401(k) Plan since the last filed Form 4, based on a report dated August 27, 2025.
F4 Includes shares allocated to the reporting person's account in the ESOP since the last filed Form 4, as of December 31, 2024.
F5 The options are vesting at a rate of 20% per year that commenced on September 1, 2023.
F6 The options vest at a rate of 20% per year commencing on June 10, 2026.