Form4insider filings, from the source

Company · CIK 0001849867 · SIC 6035 — Savings Institution, Federally Chartered · Nasdaq

Catalyst Bancorp, Inc. · CLST

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 MForm 4 →Sep 18, 4:32 pm EDTKirk E. KleiserDirector17,457$13.26$231,53345,358—
Sep 1, 2026 FForm 4 →Sep 2, 4:36 pm EDTJoseph B ZancoPRESIDENT AND CEO, Director1,158$17.81$20,62437,002—
Sep 1, 2026 FForm 4 →Sep 2, 4:20 pm EDTJacques L.J. BourqueCHIEF FINANCIAL OFFICER131$17.81$2,3334,335—
Sep 1, 2026 FForm 4 →Sep 2, 4:05 pm EDTAmanda B. QuebedeauxChief Operations Officer553$17.81$9,8499,579—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 MForm 4 →Sep 18, 4:32 pm EDTKirk E. KleiserDirector17,457——2,116—