Thorndike William N Jr 4

What Happened

• William N. Thorndike Jr., a director of Perimeter Solutions, sold a total of 325,000 shares in open-market transactions between March 9 and March 11, 2026. The four disposals were: 90,043 shares at a weighted avg $23.18 (proceeds $2,087,197), 34,957 shares at $23.85 (proceeds $833,724), 100,000 shares at $23.63 (proceeds $2,363,000), and 100,000 shares at $23.18 (proceeds $2,318,000). Total reported proceeds ≈ $7,601,921. These were sales (not purchases), which are often routine insider dispositions.

Key Details

• Transaction dates and weighted-average prices:
  • Mar 9, 2026: 90,043 shares @ $23.18 (F1); price range on that date ~$22.71–$23.71.
  • Mar 9, 2026: 34,957 shares @ $23.85 (F2); price range on that date ~$23.73–$23.95.
  • Mar 10, 2026: 100,000 shares @ $23.63 (F3); price range on that date ~$23.33–$23.97.
  • Mar 11, 2026: 100,000 shares @ $23.18 (F4); price range on that date ~$22.72–$23.40.
• Total shares sold: 325,000; total proceeds reported ≈ $7.6M.
• Shares owned after the transactions: not specified in the filing.
• Footnotes F1–F4 note the weighted-average prices and provide price ranges for each date; the filer can supply a breakdown of share counts at each separate price on request.
• Filing date: March 11, 2026. The Form 4 was filed March 11 and appears to report the March 9–11 trades within the usual reporting window.

Context

• These were open-market sales (code "S") — dispositions do not necessarily indicate the director’s view of the company; they can be for diversification, taxes, or other personal reasons. No option exercises, awards, or 10b5-1 plan references were included in the filing.