There have been 50 recent insider transactions recorded for Perimeter Solutions, S.A. (PRM), including 27 buys and 19 sells. Total insider buying was valued at $9.31M and total insider selling at $31.52M.
Notable insiders with recent activity include Howley W Nicholas, Thorndike William N Jr, Cool Tracy Britt. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — PRM
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Howley W Nicholas |
Director |
Gift (Given) |
1,000,000 |
- |
- |
4,086,840 |
| 2026-03-11 |
Thorndike William N Jr |
Director |
Informative Sell |
100,000 |
$23.18 |
$2.32M |
8,535,656 |
| 2026-03-10 |
Thorndike William N Jr |
Director |
Informative Sell |
100,000 |
$23.63 |
$2.36M |
8,635,656 |
| 2026-03-09 |
Thorndike William N Jr |
Director |
Informative Sell |
34,957 |
$23.85 |
$833.72K |
8,735,656 |
| 2026-03-06 |
Thorndike William N Jr |
Director |
Informative Sell |
100,000 |
$23.63 |
$2.36M |
8,860,656 |
| 2026-03-05 |
Thorndike William N Jr |
Director |
Informative Sell |
100,000 |
$24.06 |
$2.41M |
8,960,656 |
| 2026-03-04 |
Thorndike William N Jr |
Director |
Informative Sell |
125,000 |
$24.26 |
$3.03M |
9,060,656 |
| 2026-03-03 |
Howley W Nicholas |
Director |
Gift (Given) |
1,101,852 |
- |
- |
5,086,840 |
| 2026-03-03 |
Thorndike William N Jr |
Director |
RSU Award |
5,582,492 |
- |
- |
9,185,656 |
| 2026-03-03 |
Cool Tracy Britt |
Director |
RSU Award |
65,843 |
- |
- |
250,493 |
| 2026-03-03 |
Raj Vivek |
Director |
RSU Award |
555,859 |
- |
- |
677,560 |
| 2026-03-03 |
Khouri Haitham |
Chief Executive Officer |
RSU Award |
1,600,317 |
- |
- |
2,104,150 |
| 2026-02-26 |
Hennessy Sean P |
Director |
RSU Award |
6,194 |
$11.80 |
$73.09K |
6,194 |
| 2026-02-26 |
Henderson Robert S |
Director |
RSU Award |
2,655 |
$27.84 |
$73.92K |
2,655 |
| 2026-02-26 |
Iversen Bernt G Ii |
Director |
RSU Award |
2,655 |
$27.84 |
$73.92K |
2,655 |
| 2026-02-26 |
Valladares Iii Jorge L. |
Director |
RSU Award |
6,194 |
$11.80 |
$73.09K |
6,194 |
| 2026-02-26 |
Cool Tracy Britt |
Director |
RSU Award |
6,194 |
$11.80 |
$73.09K |
6,194 |
| 2026-02-26 |
Raj Vivek |
Director |
RSU Award |
6,194 |
$11.80 |
$73.09K |
6,194 |
| 2026-02-26 |
Yokozuka Noriko |
General Counsel |
RSU Award |
120,000 |
$10.00 |
$1.2M |
360,000 |
| 2026-02-26 |
Khouri Haitham |
Chief Executive Officer |
RSU Award |
88,489 |
$11.80 |
$1.04M |
88,489 |
| 2026-02-26 |
Emery Jeffrey |
President - Global Fire Safety |
RSU Award |
200,000 |
$8.36 |
$1.67M |
500,000 |
| 2026-02-26 |
Sable Kyle |
Chief Financial Officer |
RSU Award |
20,000 |
$3.89 |
$77.8K |
20,000 |
| 2026-02-26 |
Bowman Grant |
President, Specialty Products |
RSU Award |
39,820 |
$11.80 |
$469.88K |
39,820 |
| 2025-12-12 |
Yokozuka Noriko |
General Counsel |
Option Exercise (Sell) |
17,500 |
$10.00 |
$175K |
- |
| 2025-12-12 |
Sable Kyle |
Chief Financial Officer |
Informative Sell |
100,000 |
$28.47 |
$2.85M |
- |
| 2025-12-09 |
Thorndike William N Jr |
Director |
Gift (Given) |
673,685 |
- |
- |
3,603,164 |
| 2025-11-24 |
Howley W Nicholas |
Director |
Gift (Given) |
746,767 |
- |
- |
606,200 |
| 2025-09-11 |
Raj Vivek |
Director |
Informative Sell |
25,000 |
$22.45 |
$561.25K |
121,701 |
| 2025-09-05 |
Sable Kyle |
Chief Financial Officer |
Informative Sell |
40,000 |
$22.05 |
$882K |
- |
| 2025-09-04 |
Emery Jeffrey |
President - Global Fire Safety |
Informative Sell |
300,000 |
$22.28 |
$6.68M |
- |
| 2025-06-27 |
Windacre Partnership Master Fund, Lp |
10 Percent Owner |
Informative Sell |
254,600 |
- |
- |
- |
| 2025-06-20 |
Howley W Nicholas |
Director |
Other (Buy) |
746,767 |
- |
- |
1,352,967 |
| 2025-06-20 |
Thorndike William N Jr |
Director |
Other (Buy) |
746,767 |
- |
- |
4,276,849 |
| 2025-06-20 |
Cool Tracy Britt |
Director |
Other (Buy) |
11,201 |
- |
- |
184,650 |
| 2025-06-20 |
Raj Vivek |
Director |
Other (Buy) |
78,569 |
- |
- |
146,701 |
| 2025-06-20 |
Khouri Haitham |
Chief Executive Officer |
Other (Buy) |
254,000 |
- |
- |
503,833 |
| 2025-05-21 |
Raj Vivek |
Director |
Informative Sell |
32,000 |
$11.70 |
$374.4K |
68,132 |
| 2025-05-20 |
Raj Vivek |
Director |
Informative Sell |
68,810 |
$11.84 |
$814.71K |
100,132 |
| 2025-05-19 |
Raj Vivek |
Director |
Informative Sell |
100,000 |
$11.78 |
$1.18M |
168,942 |
| 2025-05-16 |
Raj Vivek |
Director |
Informative Sell |
100,000 |
$11.74 |
$1.17M |
268,942 |
| 2025-05-15 |
Raj Vivek |
Director |
Informative Sell |
100,000 |
$11.92 |
$1.19M |
368,942 |
| 2025-05-13 |
Raj Vivek |
Director |
Informative Sell |
2,284 |
$12.22 |
$27.91K |
468,942 |
| 2025-03-14 |
Raj Vivek |
Director |
Informative Sell |
250,000 |
$9.17 |
$2.29M |
471,226 |
| 2025-02-20 |
Hennessy Sean P |
Director |
RSU Award |
5,250 |
$11.80 |
$61.95K |
5,250 |
| 2025-02-20 |
Henderson Robert S |
Director |
RSU Award |
5,250 |
$11.80 |
$61.95K |
5,250 |
| 2025-02-20 |
Iversen Bernt G Ii |
Director |
RSU Award |
7,000 |
$5.23 |
$36.61K |
7,000 |
| 2025-02-20 |
Cool Tracy Britt |
Director |
RSU Award |
5,250 |
$11.80 |
$61.95K |
5,250 |
| 2025-02-20 |
Raj Vivek |
Director |
RSU Award |
5,250 |
$11.80 |
$61.95K |
5,250 |
| 2025-02-20 |
Yokozuka Noriko |
General Counsel |
RSU Award |
360,000 |
$10.00 |
$3.6M |
360,000 |
| 2025-02-20 |
Khouri Haitham |
Chief Executive Officer |
RSU Award |
100,000 |
$5.23 |
$523K |
100,000 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
