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Perimeter Solutions, Inc.

PRM Net selling
CIK 0001880319 #1347 in the set updated 17 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$239.62M
$0.00 on a plan · $21.32M straight out of an exercise
Sold at will
$218.30M
17 of 28 sales
Net
−$239.62M
−$218.30M against sales at will

By person

12 insiders · 28 transactions
94.1×

Haitham Khouri holds 94.1 times base salary in stock. $63.55M of shares against $675.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Haitham Khouri last reported holding, valued at $33.90, the price Ordinary shares was last bought or sold at on the open market here, on 30 Jun 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
WINDACRE PARTNERSHIP LLC entity
10% owner
—
$195.61M (7)
−$195.61M
16,148,621
9.87%
$547.44M
−26.1%
Thorndike William N Jr
Director
—
$15.40M (7)
−$15.40M
8,535,656
5.21%
$289.36M
+150.7%
Sable Kyle
Chief Financial Officer
—
$10.84M (6) scheduled
−$10.84M
0
0.0000%
$0.00
—
Khouri Haitham
Chief Executive Officer
—
$7.28M (3)
−$7.28M
1,874,615
1.15%
$63.55M
+275.0%
Emery Jeffrey
President - Global Fire Safety
—
$6.57M (4) scheduled
−$6.57M
0
0.0000%
$0.00
—
Yokozuka Noriko
General Counsel
—
$3.91M (1) scheduled
−$3.91M
47,157
0.0288%
$1.60M
0.0%
WindAcre Partnership Master Fund, LP entity
10% owner
—
—
—
21,854,600
13.35%
$740.87M
+1.2%
Raj Vivek
Director
—
—
—
677,560
0.4139%
$22.97M
−5.6%
Howley W Nicholas
Director
—
—
—
606,200
0.3703%
$20.55M
+1.8%
Henderson Robert S
Director
—
—
—
328,416
0.2006%
$11.13M
+1.1%
Cool Tracy Britt
Director
—
—
—
250,493
0.1530%
$8.49M
+12.3%
Iversen Bernt G II
Director
—
—
—
126,861
0.0775%
$4.30M
+1.5%

Individual transactions

17
Insider
Date
Role
Action
Shares
Price
Amount
WINDACRE PARTNERSHIP LLC
30 Jun 2026
10% owner
Sell
1,875,000
$33.90
$63.56M
WINDACRE PARTNERSHIP LLC
29 Jun 2026
10% owner
Sell
437,500
$33.00
$14.44M
WINDACRE PARTNERSHIP LLC
26 Jun 2026
10% owner
Sell
548,479
$34.51
$18.93M
WINDACRE PARTNERSHIP LLC
26 Jun 2026
10% owner
Sell
20,000
$36.25
$725.00K
WINDACRE PARTNERSHIP LLC
26 Jun 2026
10% owner
Sell
2,296,400
$34.40
$79.00M
WINDACRE PARTNERSHIP LLC
26 Jun 2026
10% owner
Sell
150,000
$34.98
$5.25M
WINDACRE PARTNERSHIP LLC
26 Jun 2026
10% owner
Sell
378,600
$36.22
$13.71M
Khouri Haitham
22 May 2026
Chief Executive Officer
Sell
117,511
$31.19
$3.67M
Khouri Haitham
21 May 2026
Chief Executive Officer
Sell
91,724
$31.91
$2.93M
Khouri Haitham
20 May 2026
Chief Executive Officer
Sell
20,300
$34.09
$692.03K
Thorndike William N Jr
11 Mar 2026
Director
Sell
100,000
$23.18
$2.32M
Thorndike William N Jr
10 Mar 2026
Director
Sell
100,000
$23.63
$2.36M
Thorndike William N Jr
9 Mar 2026
Director
Sell
34,957
$23.85
$833.72K
Thorndike William N Jr
9 Mar 2026
Director
Sell
90,043
$23.18
$2.09M
Thorndike William N Jr
6 Mar 2026
Director
Sell
100,000
$23.63
$2.36M
Thorndike William N Jr
5 Mar 2026
Director
Sell
100,000
$24.06
$2.41M
Thorndike William N Jr
4 Mar 2026
Director
Sell
125,000
$24.26
$3.03M
Show all 28 transactions →

What was left out

Form 4 filings counted 30
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 11
Sales at will 17
Transactions with no price 0
Shares from compensation/vesting 21,077,447
History held since 10 Nov 2021