Summary
Updated Aug 31, 2026
WindAcre Partnership Master Fund, LP is 10% Owner of Perimeter Solutions, Inc. (PRM). 1 SEC Form 4 filing on record, dated 1 July 2025. Most recent open-market trade: bought $3.56M of PRM on 1 July 2025. Lifetime open-market purchases: $3.56M. Lifetime open-market sales: $3.56M.
Recent Transactions
1Every recent SEC Form 4 transaction WindAcre Partnership Master Fund, LP has reported, most recent first.
Trading Pattern
InsiderAlpha's records for WindAcre Partnership Master Fund, LP go back to 2025: 1 primary Form 4 filing, an average of 0.5 per year. The typical open-market purchase is $3.56M (1 buy totaling $3.56M). The largest single buy on record is $3.56M of PRM in 2025. Sales side: 1 recorded sale totaling $3.56M, so the filing history runs sell-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies WindAcre Partnership Master Fund, LP files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- WINDACRE PARTNERSHIP LLC - $391.22M of PRM open-market activity in the last 12 months
- Jeffrey Emery - $13.25M of PRM open-market activity in the last 12 months
- Kyle Sable - $11.72M of PRM open-market activity in the last 12 months
- William N. Thorndike Jr. - $7.60M of PRM open-market activity in the last 12 months
- Haitham Khouri - $7.28M of PRM open-market activity in the last 12 months
- Noriko Yokozuka - $3.91M of PRM open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is WindAcre Partnership Master Fund, LP?
WindAcre Partnership Master Fund, LP is an investment firm, tracked as 10% Owner of Perimeter Solutions, Inc. (PRM). InsiderAlpha holds 1 primary Form 4 filing for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did WindAcre Partnership Master Fund, LP last file a Form 4?
The only primary Form 4 on record is dated 1 July 2025.
Has WindAcre Partnership Master Fund, LP been buying or selling stock?
Recorded transactions: 1 open-market purchase ($3.56M) and 1 open-market sale ($3.56M) across all tracked filings.
Where can I see all of WindAcre Partnership Master Fund, LP's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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