Every 8-K that Plum Acquisition Corp. IV (PLMK) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow PLMK and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full PLMK filings page.
Plum Acquisition Corp. IV (PLMK) furnished an updated investor presentation about its previously announced proposed business combination with Controlled Thermal Resources Holdings Inc. The materials outline CTR’s Hell’s Kitchen geothermal and critical minerals project in California’s Salton Sea region and the contemplated post‑merger profile.
CTR describes a staged “power‑first” plan targeting 50 MW of Stage 1 baseload geothermal power with remaining capital expenditure of about $475 million and targeted final investment decision in Q2 2027, followed by commercial operation in Q4 2028. A co‑located Stage 1 lithium facility is described at 25,000 TPA capacity with about $1.5 billion of capital, a targeted FID in Q1 2028, and targeted commercial operation in Q4 2030.
At full multi‑stage build‑out, the project is presented as having potential for roughly 650 MW of baseload power and about 100,000 TPA lithium, plus longer‑term upside from potash and other critical minerals. The presentation also includes an illustrative pro forma enterprise value of about $3.34 billion for the combined company and a multi‑step financing plan, all subject to completion of definitive agreements, shareholder and regulatory approvals, financing, and other customary closing conditions. The information is furnished under Regulation FD and characterized as forward‑looking.
Plum Acquisition Corp. IV amended its memorandum and articles to extend the deadline to complete a business combination from July 16, 2026 to January 16, 2027, with the ability to add up to six one-month extensions, if requested, through July 16, 2027.
Shareholders approved the Extension Amendment Proposal by 17,581,000 votes to 2,132,072. In connection with the vote, holders of 13,540,384 Public Shares redeemed at approximately $10.71 per share, for approximately $145 million, leaving approximately $39.7 million in the trust account. The sponsor and independent directors converted 5,749,999 Class B Ordinary Shares into Class A, and following conversions and redemptions 10,702,490 Class A Ordinary Shares and one Class B Ordinary Share are outstanding.
Plum Acquisition Corp. IV reported a second amendment to its business combination agreement with Controlled Thermal Resources Holdings Inc. The amendment reduces potential earnout shares for the Company’s shareholders from 100,000,000 to 70,000,000, cutting each of eight tranches from 12,500,000 to 8,750,000. It also lowers the valuation used to calculate merger consideration from $4,500,000,000 to $3,150,000,000.
The deadline for required antitrust filings is extended from July 31, 2026 to September 30, 2026, and the outside closing date moves from December 31, 2026 to April 30, 2027. The maximum shares issuable to Plum Partners IV, LLC as reimbursement or incentives for non-redeeming shareholders increases from 2,000,000 to 3,000,000. The parties plan to file a Form S-4 registration statement and combined proxy/prospectus for shareholder approval of the transactions.
Plum Acquisition Corp. announces the preliminary estimated cash redemption price for public shareholders ahead of its upcoming extension vote. Based on approximately $184,528,681.34 held in the Trust Account as of July 9, 2026, the estimated per-share redemption price is about $10.6973 at the time of the shareholder meeting.
The extraordinary general meeting is scheduled for July 10, 2026, where shareholders will vote on extending the SPAC Termination Date from July 16, 2026 to January 16, 2027, with the ability to further extend monthly up to July 16, 2027. Shareholders may elect to redeem or withdraw prior redemption requests up to 9:00 a.m. Eastern Time on the meeting date. The closing market price of the public shares on July 9, 2026 was $10.77 per share.
Plum Acquisition Corp. IV describes plans around an upcoming shareholder vote to extend the deadline for completing its initial business combination. The proposed amendment would move the deadline to January 16, 2027, with up to six additional monthly extensions available through July 16, 2027, if exercised.
In connection with the July 10, 2026 meeting, Class A shareholders have until 5:00 p.m. Eastern on July 8, 2026 to submit redemption requests. The company and its sponsor intend to enter into Non-Redemption Agreements, under which certain unaffiliated holders would agree not to redeem in exchange for a future transfer of sponsor-owned Class B (or converted Class A) shares if the extension is approved and those shares are not redeemed. The sponsor and certain initial holders also plan to convert substantially all Class B shares into Class A shares, which will not be eligible to receive trust account funds and will remain subject to transfer restrictions.
Plum Acquisition Corp. IV is postponing its extraordinary general meeting of shareholders to July 10, 2026, at 9:00 a.m. Eastern Time. At this meeting, shareholders are scheduled to vote on an Extension Amendment Proposal to push the SPAC’s deadline to complete an initial business combination to January 16, 2027, or up to July 16, 2027 if all six additional one-month extensions are exercised. The company also moved the deadline for shareholders to submit redemption requests from June 30, 2026, to July 8, 2026, giving investors more time to decide whether to redeem their shares or remain invested ahead of the extension vote.
Plum Acquisition Corp. IV entered Amendment No. 1 to its Business Combination Agreement with Controlled Thermal Resources Holdings Inc. and Plum IV Merger Sub Inc. The amendment mainly pushes back several closing-related deadlines for their planned merger.
The Company now has until June 15, 2026 to deliver required financial statements and until June 30, 2026 to provide pro forma financial information for inclusion in the proxy statement/prospectus. The deadline for required antitrust filings was moved to July 31, 2026, and dates for delivering certain material consents were also extended. The filing reiterates that a Form S-4 registration statement and combined proxy statement/prospectus will be submitted to the SEC for shareholder approval of the transaction.
Plum Acquisition Corp. IV has signed a Business Combination Agreement to merge with Controlled Thermal Resources Holdings Inc., turning the SPAC into a Delaware corporation whose business will be operated through Controlled Thermal Resources.
Before closing, Plum IV will domesticate from the Cayman Islands to Delaware, convert its Class A and B ordinary shares and warrants into common stock and new warrants, and give Class A holders a chance to redeem their shares. At closing, Class B shares will convert into common stock, and the combined company’s shares and warrants are expected to trade on a major U.S. exchange.
Company stockholders can earn up to 100,000,000 additional shares over ten years through an earnout structure. Conditions include at least $100,000,000 of available closing cash, potential PIPE investments of at least $15,000,000, a $10,000,000 convertible bridge note financing, and issuance of up to 2,000,000 shares to non‑redeeming SPAC holders. An equity incentive plan equal to about 10% of fully diluted shares, with a 2.5% annual “evergreen” increase, and lock-up and registration rights agreements will govern post-closing ownership and liquidity.
Plum Acquisition Corp. IV announced it has entered into a definitive business combination agreement with Controlled Thermal Resources Holdings Inc. (CTR), an emerging U.S. developer of geothermal power and critical minerals. The deal would make CTR a public company listed on Nasdaq under the ticker “CTRH”.
CTR’s Hell’s Kitchen Project in California is designed to supply up to 650 MW of renewable baseload power and about 100,000 metric tons per year of lithium carbonate at full scale, plus large volumes of potash and other critical minerals. CTR has raised over US$285 million in private capital, completed a definitive feasibility study for Stage 1, secured a conditional use permit, and invested about $185 million in long‑lead equipment. The transaction, unanimously approved by both boards, is expected to close in the second half of 2026, subject to shareholder approvals, regulatory clearances, and other customary conditions, with a pro forma enterprise value of roughly $4.7 billion and CTR holders expected to own about 90.6% of the combined company.
Plum Acquisition Corp. IV filed a current report describing its ongoing discussions for a potential business combination with American Critical Resources, LLC (ACR), a subsidiary of Controlled Thermal Resources Holdings Inc. The parties currently have only a non-binding letter of intent, not a definitive merger agreement.
The company furnished an ACR overview investor presentation as Exhibit 99.1 under Regulation FD. The report stresses there is no assurance a definitive agreement will be reached or that any transaction will close, noting numerous required conditions, including due diligence, board and equity holder approvals, regulatory clearances and financing.