Catalyst Bancorp, Inc. — Earnings Release 2026

Apr 30, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) April 30, 2026

Catalyst Bancorp, Inc.

(Exact name of registrant as specified in its charter)

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Louisiana	001-40893	86-2411762
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)
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235 N. Court Street , Opelousas , Louisiana	70570
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code ( 337 ) 948-3033

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2 below):

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☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ​

Securities registered pursuant to Section 12(b) of the Act:

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Title of each Class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	CLST	Nasdaq Capital Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 Results of Operations and Financial Condition

On April 30, 2026, Catalyst Bancorp, Inc. (the “Company”) announced its results for the quarter ended March 31, 2026. A copy of the related press release (the "Press Release") is attached as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished under items 2.02 and 9.01 of this Current Report on Form 8-K, including the exhibit, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that Section, and it shall not be deemed incorporated by reference in any filing under the Exchange Act, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing to this Form 8-K.

ITEM 9.01 Financial Statements and Exhibits

(d) Exhibits

The following exhibits are included herein:

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Exhibit Number	​	Description
99.1	​	Press Release, dated April 30, 2026
104	​	Cover Page Interactive Data File. Embedded within the Inline XBRL document.

2

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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​	​	​	CATALYST BANCORP, INC.
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Date:	April 30, 2026	​	By:	/s/ Joseph B. Zanco
​	​	​	​	Joseph B. Zanco
​	​	​	​	President and Chief Executive Officer

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