Senior insider sale
PERIMETER SOLUTIONS, INC. — senior position signals high conviction
$18.03M
765K shares
What this filing means
THORNDIKE WILLIAM N JR plans to sell 765K shares of PERIMETER SOLUTIONS, INC. valued at approximately $18.03M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 3/12/2026ACC: 0001969223-26-000338
Director
Since Nov 2021
765K
Shares to sell
$18.03M
Approx. market value
500K
Acquired (3 months)
1
Planned
6 completed
Securities Acquired — Last 3 Months1
Gift
N/A
12/19/2025
500KTotal acquired500K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
12/19/2025 | Gift N/A | 500K | Gift |
| Total | 500K | ||
Planned & Completed Dispositions7
Completed
—Completed
Units to sell
100K
Market value
$2.31M
3/11/2026
—Completed
Units to sell
100K
Market value
$2.36M
3/10/2026
—Completed
Units to sell
125K
Market value
$2.91M
3/9/2026
—Completed
Units to sell
100K
Market value
$2.36M
3/6/2026
—Completed
Units to sell
100K
Market value
$2.40M
3/5/2026
—Completed
Units to sell
125K
Market value
$3.03M
3/4/2026
Planned — Approximate Date
NYSEPlanned
Units to sell
115K
Market value
$2.66M
3/12/2026
Total
Units
765K
Value
$18.03M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
3/11/2026 | 100K | $2.31M | — | Completed |
3/10/2026 | 100K | $2.36M | — | Completed |
3/9/2026 | 125K | $2.91M | — | Completed |
3/6/2026 | 100K | $2.36M | — | Completed |
3/5/2026 | 100K | $2.40M | — | Completed |
3/4/2026 | 125K | $3.03M | — | Completed |
| Planned — Approximate Date | ||||
3/12/2026 | 115K | $2.66M | NYSE | Planned |
| Total | 765K | $18.03M | ||