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Perimeter Solutions, Inc. (PRM)

Perimeter Solutions, Inc. (PRM) Insider Trading

Directors, officers and holders of more than 10% of PRM report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 183 transactions on file: 0 with code P, 26 with code S and 24 with other codes.

DateInsiderCodeShares
Jun 30, 2026WINDACRE PARTNERSHIP LLCS Sale1,875,000
Jun 29, 2026WINDACRE PARTNERSHIP LLCS Sale437,500
Jun 26, 2026WINDACRE PARTNERSHIP LLCS Sale2,296,400
Jun 26, 2026WINDACRE PARTNERSHIP LLCS Sale548,479
Jun 26, 2026WINDACRE PARTNERSHIP LLCS Sale150,000
Jun 26, 2026WINDACRE PARTNERSHIP LLCS Sale20,000
Jun 26, 2026WINDACRE PARTNERSHIP LLCS Sale378,600
May 22, 2026Khouri HaithamS Sale117,511
May 21, 2026Khouri HaithamS Sale91,724
May 20, 2026Khouri HaithamS Sale20,300
May 13, 2026Sable KyleS Sale3,277
May 13, 2026Emery JeffreyM Exercise53,537
May 13, 2026Sable KyleS Sale46,263
May 13, 2026Emery JeffreyS Sale53,537
May 13, 2026Emery JeffreyM Exercise53,537
May 13, 2026Sable KyleM Exercise49,540
May 13, 2026Sable KyleM Exercise49,540
May 12, 2026Sable KyleM Exercise30,000
May 12, 2026Sable KyleM Exercise30,000
May 12, 2026Sable KyleS Sale30,000
May 11, 2026Sable KyleM Exercise20,460
May 11, 2026Sable KyleS Sale20,460
May 11, 2026Sable KyleM Exercise20,460
May 11, 2026Emery JeffreyS Sale97,855
May 11, 2026Emery JeffreyM Exercise99,963
May 11, 2026Emery JeffreyS Sale2,108
May 11, 2026Emery JeffreyM Exercise99,963
May 8, 2026Sable KyleS Sale150,000
May 8, 2026Sable KyleM Exercise130,000
May 8, 2026Sable KyleM Exercise20,000
May 8, 2026Emery JeffreyS Sale46,500
May 8, 2026Emery JeffreyM Exercise46,500
May 8, 2026Sable KyleM Exercise20,000
May 8, 2026Sable KyleM Exercise130,000
May 8, 2026Emery JeffreyM Exercise46,500
Apr 23, 2026Howley W NicholasG Gift3,480,640
Apr 1, 2026Howley W NicholasG Gift1,000,000
Mar 11, 2026Thorndike William N JrS Sale100,000
Mar 10, 2026Thorndike William N JrS Sale100,000
Mar 9, 2026Thorndike William N JrS Sale34,957
Mar 9, 2026Thorndike William N JrS Sale90,043
Mar 6, 2026Thorndike William N JrS Sale100,000
Mar 5, 2026Thorndike William N JrS Sale100,000
Mar 4, 2026Thorndike William N JrS Sale125,000
Mar 3, 2026Khouri HaithamA Award1,600,317
Mar 3, 2026Howley W NicholasG Gift1,101,852
Mar 3, 2026Howley W NicholasA Award5,582,492
Mar 3, 2026Thorndike William N JrA Award5,582,492
Mar 3, 2026Cool Tracy BrittA Award65,843
Mar 3, 2026Raj VivekA Award555,859

The full Form 4 history is on the PRM company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.