Plum Acquisition Corp, IV 8-K

What Happened
Plum Acquisition Corp. IV (Plum IV) reported on May 19, 2026 that on May 15, 2026 it amended the Business Combination Agreement (originally signed March 8, 2026) with Controlled Thermal Resources Holdings Inc. and Plum IV Merger Sub, Inc. The amendment (filed as Exhibit 10.1) pushes back several required delivery and filing dates tied to the planned merger (Merger Sub merging into Controlled Thermal Resources). Plum IV also noted it will file a Form S-4 (registration statement) containing the proxy statement/prospectus for the transaction.

Key Details

• Amendment date: May 15, 2026; original Business Combination Agreement dated March 8, 2026.
• Financial statement deadlines extended: Company financials due May 15, 2026 → June 15, 2026; pro forma financials due May 15, 2026 → June 30, 2026.
• Antitrust filing deadline extended: April 17, 2026 → July 31, 2026.
• Delivery dates for certain material consents moved from May 7, 2026 to dates listed on Schedule 8.01(m) of the agreement.
• Plum IV will file a Form S-4 (preliminary proxy/prospectus) and mail definitive materials after effectiveness; shareholders will vote on the Transactions.

Why It Matters
The amendment signals a timetable shift for the planned SPAC business combination with Controlled Thermal Resources, delaying key regulatory and disclosure milestones. This can postpone the shareholder vote and closing of the merger and affects when the combined company’s securities would trade. Retail investors should watch for the Form S-4/proxy statement when filed, review the disclosed financials and risk factors, and note the extended antitrust timetable that could affect closing timing.