Nasdaq Deficiency Notice Puts Plum IV's Listing at Risk
PLMK is trading near its 52-week low of $10.32 (3.0% above the low) on elevated volume (3.6× avg).
Summary
Plum IV disclosed a Nasdaq deficiency notice for falling below the 400-holder minimum, triggering a 45-day window to submit a compliance plan. There is no assurance of regaining compliance, adding risk to its pending CTR merger.
Key Events · Legal and Risk Events · PLMK
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Nasdaq Deficiency Notice Received
On October 7, 2026, Plum IV received a notice from Nasdaq that it does not meet the minimum 400 total holders requirement under Listing Rule 5450(a)(2).
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45-Day Compliance Plan Deadline
The company has 45 calendar days to submit a plan to regain compliance. If Nasdaq accepts the plan, it may grant up to 180 days from the notice date to evidence compliance.
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No Assurance of Regaining Compliance
Plum IV states there can be no assurance it will regain compliance with the minimum total holders requirement, leaving delisting risk open.
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Merger with CTR at Risk
The deficiency notice adds uncertainty to the pending merger with Controlled Thermal Resources, which was recently strengthened by a $205 million debt-to-equity conversion announced October 1, 2026.
Analysis · PLMK · Energy & Transportation
A Nasdaq deficiency notice landed on Plum Acquisition Corp. IV on October 7, 2026, citing failure to maintain the required minimum of 400 total holders under continued listing rules. The company now has 45 days to submit a compliance plan, and if Nasdaq accepts it, up to 180 days to regain compliance. This development arrives as the SPAC works to close its merger with Controlled Thermal Resources; a delisting would threaten that deal and its public listing. With the stock already near its 52-week low, shareholders face another layer of uncertainty.
How filings like this one have moved
In the 30 days to Oct 14, 2026, 36.6% of the 951 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.57%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, PLMK was trading at $10.63 on NASDAQ in the Energy & Transportation sector, with a market capitalization of approximately $113.8M. The 52-week trading range was $10.32 to $12.00. This filing was assessed with negative market sentiment and an importance score of 8 out of 10.