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Perimeter Solutions, Inc.

PRM Net selling
CIK 0001880319 #1347 in the set updated 17 Sep 2026
Bought (120 mo)
$30.80M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$260.59M
$0.00 on a plan · $28.89M straight out of an exercise
Sold at will
$231.70M
32 of 45 sales
Net
−$229.79M
−$200.90M against sales at will

By person

20 insiders · 64 transactions
155×

Haitham Khouri holds 155 times base salary in stock. $105.09M 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%
WindAcre Partnership Master Fund, LP entity
10% owner
$17.40M (2)
—
+$17.40M
21,854,600
13.35%
$740.87M
+9.3%
Thorndike William N Jr
Director
—
$15.40M (7)
−$15.40M
8,535,656
5.21%
$289.36M
—
Emery Jeffrey
President - Global Fire Safety
—
$13.25M (5) scheduled
−$13.25M
0
0.0000%
$0.00
—
Khouri Haitham
Chief Executive Officer
—
$12.44M (9)
−$12.44M
3,100,000
1.89%
$105.09M
—
Sable Kyle
Chief Financial Officer
—
$11.72M (7) scheduled
−$11.72M
0
0.0000%
$0.00
—
Raj Vivek
Director
—
$7.61M (8)
−$7.61M
677,560
0.4139%
$22.97M
—
Horn Shannon
Business Director
$4.46M (1)
—
+$4.46M
445,695
0.2723%
$15.11M
—
Yokozuka Noriko
General Counsel
$471.57K (1)
$3.91M (1) scheduled
−$3.44M
47,157
0.0288%
$1.60M
—
Goldberg Edward D.
Vice Chairman
$2.23M (1)
—
+$2.23M
222,957
0.1362%
$7.56M
—
Lederman Barry
Chief Financial Officer
$1.96M (1)
—
+$1.96M
196,416
0.1200%
$6.66M
—
Kremling Ernest C. II
Chief Operating Officer
$1.50M (1)
—
+$1.50M
150,498
0.0919%
$5.10M
—
HENNESSY SEAN P
Director
$1.00M (1)
—
+$1.00M
100,000
0.0611%
$3.39M
—
Stein Kevin M
Director
$1.00M (1)
—
+$1.00M
115,000
0.0703%
$3.90M
—
Cool Tracy Britt
Director
$51.46K (1)
$640.50K (1)
−$589.04K
256,693
0.1568%
$8.70M
—
Cornwall Stephen
Chief Commercial Officer
$420.87K (1)
—
+$420.87K
46,487
0.0284%
$1.58M
—
Valladares III Jorge L.
Director
$300.26K (3)
—
+$300.26K
14,000
0.0086%
$474.60K
—
Howley W Nicholas
Director
—
—
—
606,200
0.3703%
$20.55M
—
Henderson Robert S
Director
—
—
—
328,416
0.2006%
$11.13M
—
Iversen Bernt G II
Director
—
—
—
126,861
0.0775%
$4.30M
+1.5%

Individual transactions

64
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
Emery Jeffrey
13 May 2026
President - Global Fire Safety
Sold after exercise
53,537
$33.45
$1.79M
Sable Kyle
13 May 2026
Chief Financial Officer
Sold after exercise
3,277
$33.59
$110.07K
Sable Kyle
13 May 2026
Chief Financial Officer
Sold after exercise
46,263
$33.05
$1.53M
Sable Kyle
12 May 2026
Chief Financial Officer
Sold after exercise
30,000
$31.75
$952.50K
Sable Kyle
11 May 2026
Chief Financial Officer
Sold after exercise
20,460
$32.89
$672.93K
Emery Jeffrey
11 May 2026
President - Global Fire Safety
Sold after exercise
2,108
$34.05
$71.78K
Emery Jeffrey
11 May 2026
President - Global Fire Safety
Sold after exercise
97,855
$32.90
$3.22M
Sable Kyle
8 May 2026
Chief Financial Officer
Sold after exercise
150,000
$31.52
$4.73M
Emery Jeffrey
8 May 2026
President - Global Fire Safety
Sold after exercise
46,500
$32.00
$1.49M
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
Sable Kyle
12 Dec 2025
Chief Financial Officer
Sold after exercise
100,000
$28.47
$2.85M
Yokozuka Noriko
12 Dec 2025
General Counsel
Sold after exercise
137,500
$28.44
$3.91M
Raj Vivek
11 Sep 2025
Director
Sell
25,000
$22.45
$561.25K
Sable Kyle
5 Sep 2025
Chief Financial Officer
Sold after exercise
40,000
$22.05
$882.00K
Emery Jeffrey
4 Sep 2025
President - Global Fire Safety
Sold after exercise
300,000
$22.28
$6.68M
WindAcre Partnership Master Fund, LP
27 Jun 2025
10% owner
Buy
254,600
$13.98
$3.56M
Raj Vivek
21 May 2025
Director
Sell
32,000
$11.70
$374.40K
Raj Vivek
20 May 2025
Director
Sell
68,810
$11.84
$814.71K
Raj Vivek
19 May 2025
Director
Sell
100,000
$11.78
$1.18M
Raj Vivek
16 May 2025
Director
Sell
100,000
$11.74
$1.17M
Raj Vivek
15 May 2025
Director
Sell
100,000
$11.92
$1.19M
Raj Vivek
13 May 2025
Director
Sell
2,284
$12.22
$27.91K
Raj Vivek
14 Mar 2025
Director
Sell
250,000
$9.17
$2.29M
Cool Tracy Britt
22 Nov 2024
Director
Sell
50,000
$12.81
$640.50K
Khouri Haitham
15 Nov 2024
Chief Executive Officer
Sell
80,156
$12.16
$974.70K
Khouri Haitham
14 Nov 2024
Chief Executive Officer
Sell
100,000
$12.17
$1.22M
Khouri Haitham
13 Nov 2024
Chief Executive Officer
Sell
80,000
$12.05
$964.00K
Raj Vivek
12 Nov 2024
Director
Exercised, kept
25,000
$12.00
$300.00K
Khouri Haitham
6 Nov 2024
Chief Executive Officer
Exercised, kept
92,500
$12.00
$1.11M
Thorndike William N Jr
6 Nov 2024
Director
Exercised, kept
125,000
$12.00
$1.50M
Iversen Bernt G II
29 Oct 2024
Director
Exercised, kept
31,250
$12.00
$375.00K
Howley W Nicholas
21 Oct 2024
Director
Exercised, kept
125,000
$12.00
$1.50M
Valladares III Jorge L.
11 Jun 2024
Director
Buy indirect
14,000
$7.15
$100.09K
Valladares III Jorge L.
11 Jun 2024
Director
Buy indirect
14,000
$7.15
$100.09K
Valladares III Jorge L.
11 Jun 2024
Director
Buy indirect
14,000
$7.15
$100.09K
Khouri Haitham
6 Dec 2022
Vice Chairman
Sell
126,952
$10.45
$1.33M
Khouri Haitham
5 Dec 2022
Vice Chairman
Sell
38,923
$10.84
$421.93K
Khouri Haitham
2 Dec 2022
Vice Chairman
Sell
22,599
$10.96
$247.69K
Cool Tracy Britt
10 May 2022
Director
Buy indirect
6,200
$8.30
$51.46K
WindAcre Partnership Master Fund, LP
9 May 2022
10% owner
Buy
1,600,000
$8.65
$13.84M
Horn Shannon
9 Nov 2021
Business Director
Buy
445,695
$10.00
$4.46M
Kremling Ernest C. II
9 Nov 2021
Chief Operating Officer
Buy
150,498
$10.00
$1.50M
Lederman Barry
9 Nov 2021
Chief Financial Officer
Buy
196,416
$10.00
$1.96M
Stein Kevin M
9 Nov 2021
Director
Buy indirect
100,000
$10.00
$1.00M
Yokozuka Noriko
9 Nov 2021
General Counsel
Buy
47,157
$10.00
$471.57K
Goldberg Edward D.
9 Nov 2021
Chief Executive Officer
Buy
222,957
$10.00
$2.23M
Cornwall Stephen
9 Nov 2021
Chief Commercial Officer
Buy
42,087
$10.00
$420.87K
HENNESSY SEAN P
9 Nov 2021
Director
Buy
100,000
$10.00
$1.00M

What was left out

Form 4 filings counted 109
Amendments (4/A) skipped 4
Filings about a different issuer 0
Unreadable filings 0
Joint filings 4
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 13
Sales at will 32
Transactions with no price 0
Shares from compensation/vesting 44,935,901
Sales filed before the plan box existed 3
History held since 10 Nov 2021