THORNDIKE WILLIAM N JR

PrivateCIK: 1437827
Location

BOSTON, MA

THORNDIKE WILLIAM N JR sold 3.5% of their position (325K shares) of PERIMETER SOLUTIONS, INC. on the open market

Open‑market sale worth $7.80M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderTHORNDIKE WILLIAM N JRCIK 1437827
IssuerPERIMETER SOLUTIONS, INC.CIK 1880319
Director
Since Nov 2021
-325K
Net shares
Net seller
$7.80M
Total sold
3
Open market trades
0B · 3S
3
Total transactions
325K disposed
Non-Derivative Transactions3

Common Stock

Direct
S · Sale

Shares

125K

Price / share

$24.26

Trade value

$3.03M

% of position

1.4%
3/4/2026
9.19M9.06M

Common Stock

Direct
S · Sale

Shares

100K

Price / share

$24.06

Trade value

$2.41M

% of position

1.1%
3/5/2026
9.06M8.96M

Common Stock

Direct
S · Sale

Shares

100K

Price / share

$23.63

Trade value

$2.36M

% of position

1.1%
3/6/2026
8.96M8.86M
Total

Net shares

325K

Net value

-$7.80M

Derivative Transactions0
No derivative transactions reported
THORNDIKE WILLIAM N JR — Insider Transaction (Form 4) Filed Mar 6, 2026 | Finecho