Catalyst Acquisition (CATLU) Sponsor Surrenders 462,500 Founder Shares

What Happened

• Catalyst Sponsor LLC (the Sponsor), listed as a 10% owner, disposed of 462,500 Class B Ordinary Shares on 2026-09-10. The shares were surrendered to the issuer for no consideration (price N/A). This was a non‑market disposition related to the underwriting over‑allotment, not a typical open‑market sale.

Key Details

• Transaction date: 2026-09-10 (Form 4 filed 2026-09-14; filing is timely)
• Transaction code: J (other acquisition/disposition); classified as a derivative disposition
• Shares disposed: 462,500 Class B Ordinary Shares; no cash exchanged (surrendered for no consideration)
• Shares owned after transaction: not stated in the provided filing
• Footnotes:
  • F1: Class B shares convert 1-for-1 into Class A shares at the time of an initial business combination (no consideration on conversion).
  • F2: The surrender was made because underwriters partially exercised their over‑allotment option in the IPO, and the Sponsor surrendered these founder shares to the issuer for no consideration.

Context

• This was an institutional/ Sponsor action tied to IPO mechanics (overallotment/greenshoe adjustment), not an individual insider selling into the market. Such surrenders are routine in SPAC IPO transactions and do not necessarily signal management sentiment about the company.