Recent 8-K filings for PLMK

• May 18, 2026, 6:48 PM ET M&A materiality 0.45 neutral item 1.01item 9.01

  Plum Acquisition Corp. IV amends business combination agreement, extends key deadlines

  Company financial statements deadline extended to June 15, 2026 (audited) and June 30, 2026 (pro forma).

• March 12, 2026, 7:59 PM ET M&A materiality 0.90 neutral item 1.01item 9.01 ◈ Material Agreements

  Plum IV SPAC signs business combination agreement with Controlled Thermal Resources

  Sponsor must fund at least $15M in PIPE investment; $10M bridge note also required prior to close.

• March 9, 2026, 7:59 PM ET M&A materiality 0.80 positive item 7.01item 9.01

  Plum IV (PLMK) to merge with Controlled Thermal Resources at ~$4.7B enterprise value

  CTR valued at ~$4.7B pro forma enterprise value; combined entity to list on Nasdaq as 'CTRH'.

• January 28, 2026, 6:59 PM ET M&A materiality 0.65 neutral item 7.01item 9.01

  Plum IV and American Critical Resources announce LOI for business combination

  Non-binding LOI for SPAC merger with ACR, subsidiary of Controlled Thermal Resources.

• December 19, 2025, 6:59 PM ET M&A materiality 0.65 neutral item 7.01item 9.01

  Plum IV and American Critical Resources sign non-binding LOI for business combination

  ACR targets up to 100,000 metric tons annual lithium carbonate from Hell's Kitchen project at Salton Sea, CA.

• July 14, 2025, 7:59 PM ET debt materiality 0.40 neutral item 2.03item 9.01 ◈ Debt Financings

  Plum Acquisition Corp. IV issues up to $1.5M promissory note to sponsor

  Up to $1.5M unsecured promissory note issued July 8, 2025 to sponsor Plum Partners IV, LLC.

• May 1, 2025, 7:59 PM ET leadership materiality 0.25 neutral item 5.02 ◈ executive_change

  Plum Acquisition Corp. IV appoints Aidin Aghamiri as independent director

  Aghamiri, 41, appointed effective April 25, 2025; he is an entrepreneur and data center developer for AI workloads.

• January 29, 2025, 6:59 PM ET other materiality 0.25 neutral item 8.01item 9.01

  Plum Acquisition Corp. IV announces separate trading of Class A shares and warrants starting Jan 31, 2025

  Effective Jan 31, 2025, unit holders may elect to separate units into Class A ordinary shares and warrants.

• January 23, 2025, 6:59 PM ET other material materiality 0.65 neutral item 8.01item 9.01

  Plum Acquisition Corp. IV closes IPO raising $172.5M, total trust $174.2M

  IPO of 17,250,000 units at $10.00/unit, including full over-allotment; gross proceeds $172.5M.

• January 17, 2025, 6:59 PM ET other material materiality 0.20 neutral item 8.01

  Plum Acquisition Corp. IV amends trust agreement to limit interest withdrawals to taxes and dissolution expenses

  Trust interest available only for taxes and up to $100,000 in dissolution expenses; no working capital withdrawals.

• January 16, 2025, 6:59 PM ET other material materiality 0.75 neutral item 1.01item 3.02item 5.02item 5.03item 8.01item 9.01

  Plum Acquisition Corp. IV completes $172.5M IPO, including full over-allotment

  IPO of 17,250,000 units at $10.00 each, gross proceeds $172.5M.

Executive changes

Materiality & sentiment trend

Max materiality 0.90 · Median 0.65 · Most common event m_and_a

1 positive 0 negative 10 neutral

source · PLMK on sec.gov