Kirk E. Kleiser - 28 Oct 2025 Form 4 Insider Report for Catalyst Bancorp, Inc. (CLST)

Role
Director
Signature
/s/ Jutta Codori by P.O.A. for Kirk E. Kleiser
Issuer symbol
CLST
Transactions as of
28 Oct 2025
Transactions value $
$28
Form type
4
Filing time
30 Oct 2025, 16:13:54 UTC
Previous filing
13 Jun 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kleiser Kirk E. Director C/O CATALYST BANCORP INC, 235 N COURT ST, OPELOUSAS /s/ Jutta Codori by P.O.A. for Kirk E. Kleiser 30 Oct 2025 0001885818

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLST Common Stock Sale -$20.1K -1.5K -31.58% $13.43 3.25K 28 Oct 2025 By Kleiser Enterprises Corporation
transaction CLST Common Stock Sale -$33.5K -2.5K -76.92% $13.39 750 28 Oct 2025 By Kleiser Enterprises Corporation
transaction CLST Common Stock Sale -$10K -750 -100% $13.40 0 28 Oct 2025 By Kleiser Enterprises Corporation
transaction CLST Common Stock Purchase $1.34K +100 +0.77% $13.40 13.1K 28 Oct 2025 By IRA
transaction CLST Common Stock Purchase $62.4K +4.65K +35.5% $13.41 17.7K 28 Oct 2025 By IRA
holding CLST Common Stock 24.5K 28 Oct 2025 Direct F1
holding CLST Common Stock 1K 28 Oct 2025 By K & G On the Geaux LLC F2
holding CLST Common Stock 5K 28 Oct 2025 By K Kleiser LLC F3
holding CLST Common Stock 3.1K 28 Oct 2025 By Spouse in IRA
holding CLST Common Stock 900 28 Oct 2025 By Spouse

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) 21.2K 28 Oct 2025 Common Stock 21.2K $13.30 Direct F4
holding CLST Stock Option (Right to Buy) 2.65K 28 Oct 2025 Common Stock 2.65K $12.08 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 3,384 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.
F2 The 1,000 shares are held by the K&G On the GEAUX LLC of which the reporting person is a senior managing member and 60% owner.
F3 The 5,000 shares are held by the K Kleiser LLC of which the reporting person is the sole member.
F4 The options are vesting at a rate of 20% per year commenced on September 1, 2023.
F5 The options vest at a rate of 20% per year commencing on June 10, 2026.