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sellModerate

Windacre Partnership LLC sold $196M of PRM

owner at Perimeter Solutions, SA. 5,705,979 shares at an average of $34.28, traded Jun 26, 2026, filed Jul 13, 2026.

Warning score
47
Value
$196M
5,705,979 shares
Holdings after
16,148,621
-26% from before
From 52-week low
+147%
low $13.92, close $34.40
From 52-week high
-9%
high $37.78, as of Jun 26, 2026

Score components

  • Role
    10% owner
    +12
  • Trade size
    $195.6M at market
    +25
  • Share of holdings sold
    Sold 26% of holdings
    +10
  • Cluster
    No other insider selling within 14 days
    0

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

PRMOct 12, 2026 · close 27.09
Since filing Jul 13, 2026: -17.6%SPY +4.1% · excess -21.7%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0000919574-26-004413, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 26, 2026SOpen-market sale
Ordinary shares
-378,600$36.22$14M21,476,000Jul 13, 2026
Jun 26, 2026SOpen-market sale
Ordinary shares
-150,000$34.98$5.2M21,326,000Jul 13, 2026
Jun 26, 2026SOpen-market sale
Ordinary shares
-2,296,400$34.40$79M19,029,600Jul 13, 2026
Jun 26, 2026SOpen-market sale
Ordinary shares
-20,000$36.25$725k19,009,600Jul 13, 2026
Jun 26, 2026SOpen-market sale
Ordinary shares
-548,479$34.51$19M18,461,121Jul 13, 2026
Jun 29, 2026SOpen-market sale
Ordinary shares
-437,500$33.00$14M18,023,621Jul 13, 2026
Jun 30, 2026SOpen-market sale
Ordinary shares
-1,875,000$33.90$64M16,148,621Jul 13, 2026

Related signals

Other insiders at Perimeter Solutions, SA and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
47Moderate
PRMsell
Perimeter Solutions, SA
Windacre Partnership LLC
owner
$196M
5,705,979 shares
-26%
70Notable
PRMsell 3
Perimeter Solutions, SA
Haitham Khouri
Chief Executive Officer
$7.3M
229,535 shares
-11%
65Notable
PRMsell 3
Perimeter Solutions, SA
Jeffrey Emery
President - Global Fire Safety
$1.8M
53,537 shares
-100%
67Notable
PRMsell 3
Perimeter Solutions, SA
Kyle Sable
Chief Financial Officer
$1.6M
49,540 shares
-100%
65Notable
PRMsell 3
Perimeter Solutions, SA
Jeffrey Emery
President - Global Fire Safety
$4.8M
146,463 shares
-315%
67Notable
PRMsell 3
Perimeter Solutions, SA
Kyle Sable
Chief Financial Officer
$6.4M
200,460 shares
-134%
40Moderate
PRMsell
Perimeter Solutions, SA
William N Thorndike Jr
director
$7.6M
325,000 shares
-4%
40Moderate
PRMsell
Perimeter Solutions, SA
William N Thorndike Jr
director
$7.8M
325,000 shares
-4%
53Moderate
PRMsell 2
Perimeter Solutions, SA
Noriko Yokozuka
General Counsel
$3.9M
137,500 shares
-74%
60Notable
PRMsell 2
Perimeter Solutions, SA
Kyle Sable
Chief Financial Officer
$2.8M
100,000 shares
-100%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Windacre Partnership LLC sold $196M of PRM | InsiderTell