Changes in Beneficial Ownership · 4
Catalyst Bancorp, Inc.
CLSTNASDAQEQUITYCurrent
Changes in Beneficial Ownership
Structured filing — 4
form4-09022026_080939.xml
Filing details
- Report period
- 2026-09-01
- Issuer
- Catalyst Bancorp, Inc.
- Issuer CIK
- 0001849867
- Trading symbol
- CLST
Reporting owner 1
- Name
- Zanco Joseph B
- Reporting owner CIK
- 0001318329
- Relationship
- Director · Officer
- Officer title
- PRESIDENT AND CEO
- Address
- C/O CATALYST BANCORP INC, 235 N COURT ST, OPELOUSAS, LA, 70570
Non-derivative transactions
| Security | Transaction date | Code | Amount | A / D | Price (USD) | Owned after | Ownership |
|---|---|---|---|---|---|---|---|
| Common Stock | 2026-09-01 | F · Form 4[F1] | 1,158 | D | 17.81 | 37,002[F2][F3][F4] | D |
Table key
- F · Form 4
- Securities delivered or withheld for exercise price or tax liability under Rule 16b-3
- D
- Direct
Non-derivative holdings
| Security | Amount owned | Ownership | Nature of ownership |
|---|---|---|---|
| Common Stock | 15,000 | I | By Spouse |
| Common Stock | 2,996.5955[F5] | I | By 401(k) Plan |
| Common Stock | 8,506.7075[F6] | I | By ESOP |
| Common Stock | 22,009 | I | By IRA |
Table key
- I
- Indirect
Derivative holdings
| Security | Conversion / exercise price (USD) | Exercisable | Expires | Underlying security | Underlying shares | Amount owned | Ownership |
|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy) | 13.30 | [F7] | 2032-09-01 | Common Stock | 52,900 | 52,900 | D |
| Stock Option (Right to Buy) | 12.08 | [F8] | 2035-06-10 | Common Stock | 13,225 | 13,225 | D |
| Stock Option (Right to Buy) | 15.96 | [F9] | 2036-06-10 | Common Stock | 13,225 | 13,225 | D |
Table key
- D
- Direct
Footnotes
- F1
- Disposition solely to meet tax obligation for distribution from stock benefit plan.↩ 1
- F2
- Includes 4,232 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.↩ 1
- F3
- Includes 4,232 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 5,290 shares that commenced vesting 20% per year on June 10, 2026.↩ 1
- F4
- 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.↩ 1
- F5
- Includes shares acquired in the Catalyst Bank 401(k) Plan since the last filed Form 4, based on a report dated August 27, 2026.↩ 1
- F6
- Includes shares allocated to the reporting person's account in the ESOP since the last filed Form 4, as of December 31, 2025.↩ 1
- F7
- These options are vesting at a rate of 20% per year that commenced on September 1, 2023.↩ 1
- F8
- These options are vesting at a rate of 20% per year that commenced on June 10, 2026.↩ 1
- F9
- These options vest at a rate of 20% per year commencing on June 10, 2027.↩ 1
Signature 1
- Signed
- /s/ Jutta Codori by P.O.A. Joseph B. Zanco
- Date
- 2026-09-02
Company context
Catalyst Bancorp, Inc. (Nasdaq: CLST) is a Louisiana corporation and registered bank holding company for Catalyst Bank, its wholly-owned subsidiary, with $631.2 million in assets at September 30, 2026. Founded in 1922 as St. Landry Homestead Federal Savings Bank, Catalyst Bank has served the Acadiana region of south-central Louisiana for more than a century and recently expanded into southwest Louisiana through the acquisition of Lakeside Bank. Catalyst Bank offers commercial and retail banking products with a focus on fueling business and improving lives in the communities we serve. To learn more about Catalyst Bancorp and Catalyst Bank, visit www.catalystbank.com or the website of the Securities and Exchange Commission, www.sec.gov.
Current securities
Recent company filings
- Results of Operations and Financial ConditionOct 29, 2026
- Financial Statements and ExhibitsSep 29, 2026
- Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsSep 15, 2026
- Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsAug 18, 2026
- 10-Q filingAug 14, 2026