Catalyst Bancorp, Inc.

CLST·NASDAQ·$15.93Share Price as of 11/2·$65MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/14/26 10-QQ1 ended 03/31/2605/15/26 10-KFY 202503/31/26 10-QQ3 ended 09/30/2511/13/25 10-QQ2 ended 06/30/2508/13/25

Disclosures

8-KCurrent report10/29/26 8-K/ACurrent report (amended)09/29/26 8-KCurrent report09/15/26 8-KCurrent report08/18/26 8-KCurrent report07/30/26

Prospectuses and Registrations

S-8Registration of securities for employees08/25/22 S-8Registration of securities for employees01/27/22 424B3Prospectus08/16/21 S-1/ARegistration statement (amended)07/30/21 S-1/ARegistration statement (amended)07/16/21

Proxies

DFAN14AAdditional materials (non-management)08/27/26 DEF 14ADefinitive proxy04/14/26 DEF 14ADefinitive proxy04/15/25 DEF 14ADefinitive proxy04/18/24 DEF 14ADefinitive proxy04/11/23

Ownership

Form 4Insider transaction09/18/26 Form 4Insider transaction09/02/26 Form 4Insider transaction09/02/26 Form 4Insider transaction09/02/26 SC 13D/ABeneficial ownership (amended)08/27/26

Other

11-KEmployee stock purchase plan report06/30/26 ARSAnnual report to shareholders04/14/26 11-KEmployee stock purchase plan report06/30/25 ARSAnnual report to shareholders04/15/25 11-KEmployee stock purchase plan report06/28/24