Director William Thorndike Sells $7.8M in Perimeter Solutions Stock Following Recent Losses
PRM has more than doubled off its 52-week low of $8.76.
Summary
Director William N. Thorndike Jr. sold $7.8 million worth of Perimeter Solutions stock in open market transactions, following the company's recent report of significant net losses.
Key Events · Ownership and Investor Activity · PRM
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Director Sells Substantial Stake
Director William N. Thorndike Jr. disposed of 325,000 shares of common stock in open market sales, totaling $7,801,500.
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Sales Follow Negative Earnings
The sales occurred from March 4-6, 2026, shortly after Perimeter Solutions reported a substantial net loss of $206.4 million for fiscal year 2025 on February 26, 2026.
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Execution of Prior Intent
This Form 4 reports the actual execution of sales, which were previously indicated by Form 144 filings from the same director on March 4 and March 5, 2026.
Analysis · PRM · Industrial Applications And Services
This Form 4 filing reports a significant open market sale by Director William N. Thorndike Jr., totaling $7.8 million over three days. This transaction follows the company's recent disclosure of a substantial net loss for fiscal year 2025 and Q4, and prior Form 144 filings indicating intent to sell. While the intent was previously known, the execution of such a large sale by a director, especially after negative financial results, can be interpreted as a lack of confidence in the company's near-term prospects. Investors should note the timing of these sales relative to the recent earnings report and consider the potential signal from a key insider reducing their stake.
How filings like this one have moved
In the 30 days to Sep 16, 2026, 30% of the 1759 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.34%. 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, PRM was trading at $23.53 on NYSE in the Industrial Applications And Services sector, with a market capitalization of approximately $3.5B. The 52-week trading range was $8.76 to $29.88. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.