PRM
Perimeter Solutions, Inc. · Manufacturing · Market cap $4.5B(Price slightly stale)
Insiders sold $217.5M net in the last 90 days ·4 sellers, 0 buyers· latest Form 4 filed Jul 13, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$239.6M
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Jul 13, 2026
WINDACRE PARTNERSHIP LLC
Perimeter Solutions, Inc. (PRM) has 20 SEC Form 4 filings (56 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Jul 13, 2026.
Inside the rolling window, 6 insiders at Perimeter Solutions, Inc. reported no open-market purchases and 21 open-market sales totaling $239.6M. The most active filer is Director Thorndike William N Jr with 6 filings. Insiders have net sold $232.9M over the trailing 6 months. The most recent open-market filing is a sale of 3,393,479 shares by 10% Owner WINDACRE PARTNERSHIP LLC, dated Jun 26, 2026, worth $117.6M.
- Industry:Chemicals - Specialty
- CEO:Haitham R. Khouri
- Employees:356
- HQ:Clayton, MO, US
- IPO:2021-11-09
| Source | |||||||
|---|---|---|---|---|---|---|---|
| 10% Owner | Sale | 3,393,479 | $117.6M | Jul 13 | -15.6% | SEC ↗ | |
| 10% Owner | Sale | 437,500 | $14.4M | Jul 13 | -15.6% | SEC ↗ | |
| 10% Owner | Sale | 1,875,000 | $63.6M | Jul 13 | -15.6% | SEC ↗ | |
Khouri HaithamFirst filing | Chief Executive Officer | Sale | 20,300 | $692K | May 22 | — | SEC ↗ |
Khouri HaithamFirst filing | Chief Executive Officer | Sale | 91,724 | $2.9M | May 22 | — | SEC ↗ |
Khouri HaithamFirst filing | Chief Executive Officer | Sale | 117,511 | $3.7M | May 22 | — | SEC ↗ |
| Chief Financial Officer | Sale | 49,540 | $1.6M | May 15 | — | SEC ↗ | |
| President - Global Fire Safety | Sale | 53,537 | $1.8M | May 15 | — | SEC ↗ | |
Emery JeffreyFirst filing | President - Global Fire Safety | Sale | 46,500 | $1.5M | May 12 | — | SEC ↗ |
Emery JeffreyFirst filing | President - Global Fire Safety | Sale | 99,963 | $3.3M | May 12 | — | SEC ↗ |
Sable KyleFirst in 5 months | Chief Financial Officer | Sale | 150,000 | $4.7M | May 12 | — | SEC ↗ |
Sable KyleFirst in 5 months | Chief Financial Officer | Sale | 20,460 | $673K | May 12 | — | SEC ↗ |
Sable KyleFirst in 5 months | Chief Financial Officer | Sale | 30,000 | $953K | May 12 | — | SEC ↗ |
| Director | Sale | 125,000 | $2.9M | Mar 11 | — | SEC ↗ | |
| Director | Sale | 100,000 | $2.4M | Mar 11 | — | SEC ↗ | |
| Director | Sale | 100,000 | $2.3M | Mar 11 | — | SEC ↗ | |
Thorndike William N JrFirst filing | Director | Sale | 125,000 | $3.0M | Mar 6 | — | SEC ↗ |
Thorndike William N JrFirst filing | Director | Sale | 100,000 | $2.4M | Mar 6 | — | SEC ↗ |
Thorndike William N JrFirst filing | Director | Sale | 100,000 | $2.4M | Mar 6 | — | SEC ↗ |
Yokozuka NorikoFirst filing | General Counsel | Sale | 137,500 | $3.9M | Dec 16 | — | SEC ↗ |
Sable KyleFirst filing | Chief Financial Officer | Sale | 100,000 | $2.8M | Dec 16 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does PRM have?
Perimeter Solutions, Inc. (PRM) has 20 SEC Form 4 filings (56 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Jul 13, 2026.
When was the most recent SEC Form 4 filing for PRM?
The most recent Form 4 filing for PRM on Tracefour is dated Jul 13, 2026.
Who is the most active insider at PRM?
The most active SEC Form 4 filer at PRM in the rolling window is Director Thorndike William N Jr, with 6 filings.
What is the net insider flow at PRM over the last 6 months?
Over the trailing 180 days, insiders at PRM have net sold $232.9M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at PRM in the current window?
Inside the rolling window, insiders at PRM bought $0 and sold $239.6M based on SEC Form 4 filings.
Can I get alerts for PRM insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Perimeter Solutions, Inc. (PRM). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Perimeter Solutions, Inc. is in the Manufacturing sector.