Perimeter Solutions, Inc. (PRM) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-13

Perimeter Solutions, Inc. (PRM) has filed 8 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-13. 2 Form 8-K material event filings were reported by PRM in the last 90 days. 12 Form 144 notices of proposed sale were filed for PRM stock. InsiderAlpha tracks every PRM SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Perimeter Solutions, Inc. (PRM)

SEC CIK0001880319

90-Day SEC Filing Activity

Form 4 filings (90d)8
Form 8-K filings (90d)2
Form 144 notices (90d)12
Latest Form 4 filing2026-07-13

Recent PRM Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale1.88M$33.90$63.56MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale1.88M$33.90$63.56MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale437.5K$33.00$14.44MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale437.5K$33.00$14.44MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale378.6K$36.22$13.71MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale20.0K$36.25$725KSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale548.5K$34.51$18.93MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale150.0K$34.98$5.25MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale2.30M$34.40$79.00MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale378.6K$36.22$13.71MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale548.5K$34.51$18.93MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale20.0K$36.25$725KSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale2.30M$34.40$79.00MSEC
WINDACRE PARTNERSHIP LLC10% OwnerS — Open-market sale150.0K$34.98$5.25MSEC
Khouri HaithamChief Executive OfficerS — Open-market sale117.5K$31.19$3.67MSEC

All transactions sourced from SEC EDGAR Form 4 filings for Perimeter Solutions, Inc. (PRM). Updated in real time as new filings are submitted to the SEC.

Most-Active PRM Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
Sable Kyle15$9.99M
WINDACRE PARTNERSHIP LLC14$391.22M
Emery Jeffrey10$8.24M
Khouri Haitham3$7.28M
Howley W Nicholas1—

Recent PRM Form 8-K Material Events

Recent PRM Form 144 Notices of Proposed Sale

Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in PRM insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

PRM Insider Trading — FAQ

What is the latest insider trade for PRM?
Perimeter Solutions, Inc. (PRM) had 8 insider filings in the last 90 days, with the most recent on 2026-07-13. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying PRM stock?
0 insider purchases of PRM were filed in the last 90 days.
How many insiders are selling PRM stock?
0 insider sales of PRM were filed in the last 90 days.
Where can I see PRM SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every PRM SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live PRM dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.