PLMK Plum Acquisition Corp, IV

CIK 0002030482 20 ready 8-Ks latest October 14, 2026, 5:15 PM ET RSS · JSON

Activity: ELEVATED 3 filings / 30d vs 1 baseline

Ready 8-Ks 20

Latest filing October 14, 2026, 5:15 PM ET

Top materiality 0.90

Event mix m_and_a ×7 · other_material ×7 · leadership ×2

Sentiment 2 pos · 1 neg · 17 neu

Executive change recent →

SHENANIGAN SCORE 1 / 7 see the board

Recent 8-K filings for PLMK

Highest-materiality recent filing

Plum IV SPAC signs business combination agreement with Controlled Thermal Resources

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

Sponsor must fund at least $15M in PIPE investment; $10M bridge note also required prior to close.
Up to 100M earnout shares issuable in tranches if stock price reaches $12.50 to $30.00 over 10 years.

Read filing →

October 14, 2026, 5:15 PM ET regulatory materiality 0.55 negative item 3.01

Plum Acquisition Corp. IV gets Nasdaq notice over 400-holder listing rule breach

Nasdaq notice dated Oct 7, 2026 says Plum fails Listing Rule 5450(a)(2), which requires at least 400 total holders for Global Market listing.
October 9, 2026, 4:01 PM ET leadership materiality 0.20 neutral item 5.02 ◈ executive_change

Plum Acquisition Corp. IV director Aidin Aghamiri resigns from board effective October 6, 2026

Aidin Aghamiri notified Plum Acquisition Corp. IV of his resignation as a member of the board of directors, effective immediately, on October 6, 2026.
October 1, 2026, 9:16 AM ET debt materiality 0.75 positive item 7.01 item 9.01

Plum IV and CTR announce agreements to convert ~$205M convertible debt to equity ahead of proposed business combination

CTR's outstanding convertible notes expected to total about $245M at closing; ~$205M expected to convert to equity and ~$40M into a new planned PIPE.
August 19, 2026, 9:48 PM ET M&A materiality 0.25 neutral item 7.01 item 9.01

Plum IV updates investor presentation for CTR geothermal-lithium merger; no new deal terms

Updated investor presentation dated Aug 19, 2026 supersedes March 9, 2026 version for proposed business combination with Controlled Thermal Resources.
July 16, 2026, 4:28 PM ET other material materiality 0.65 neutral item 5.03 item 5.07 item 8.01 item 9.01

Plum Acquisition Corp. IV shareholders approve extension to Jan 2027; ~$145M redeemed

Shareholders approved extension of business combination deadline from July 16, 2026 to January 16, 2027, with option for monthly extensions up to July 16, 2027.
July 10, 2026, 5:02 PM ET M&A materiality 0.75 neutral item 1.01 item 9.01

Plum IV amends SPAC merger with Controlled Thermal Resources: valuation cut to $3.15B, earnout shares reduced to 70M

Valuation reduced from $4.5B to $3.15B; earnout shares cut from 100M to 70M.
July 9, 2026, 5:18 PM ET other material materiality 0.50 neutral item 8.01

Plum Acquisition IV estimates redemption price ~$10.6973/share for extension vote on July 10, 2026

Trust account balance ~$184.5M as of July 9, 2026; estimated redemption price ~$10.6973 per share.
June 30, 2026, 8:16 PM ET other material materiality 0.60 neutral item 8.01 item 9.01

Plum Acquisition Corp. IV extends business combination deadline to Jan 2027, enters non-redemption agreements

Extraordinary general meeting set for July 10, 2026 to approve extension of business combination deadline to January 16, 2027 (or up to July 16, 2027 with monthly extensions).
June 29, 2026, 6:49 PM ET other material materiality 0.50 neutral item 8.01 item 9.01

Plum Acquisition Corp. IV postpones extraordinary general meeting to July 10, 2026 to allow more shareholder engagement

Meeting originally July 2, 2026 postponed to July 10, 2026 at 9:00 a.m. ET.
May 18, 2026, 6:48 PM ET M&A materiality 0.45 neutral item 1.01 item 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 1.01 item 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 7.01 item 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 7.01 item 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 7.01 item 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 2.03 item 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 8.01 item 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 8.01 item 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 1.01 item 3.02 item 5.02 item 5.03 item 8.01 item 9.01 ◈ Governance Changes

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

Departed

Aidin Aghamiri

member of the board of directors

PLMK · Plum Acquisition Corp, IV

Effective: 2026-10-06
Filed: October 9, 2026, 4:01 PM ET

On October 6, 2026, Aidin Aghamiri notified Plum Acquisition Corp. IV (the “Company”) of his resignation as a member of the Company's board of directors (the “Board”), effective immediately. Mr. Aghamiri's resignation was not the result of any disagreement with the Company or the Board on any matter relating to the Company's operations, policies or practices.

Appointed

Aidin Aghamiri

Independent Director

PLMK · Plum Acquisition Corp, IV

Effective: 2025-04-25
Filed: May 1, 2025, 7:59 PM ET

On April 28, 2025, the board of directors (the “Board”) of Plum Acquisition Corp. IV (the “Company”) appointed Mr. Aidin Aghamiri to serve as an independent director of the Company, effective April 25, 2025.

Materiality & sentiment trend

Max materiality 0.90 · Median 0.57 · Most common event m_and_a

2 positive 1 negative 17 neutral

source · PLMK on sec.gov