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PRM Insider Trading & Form 4 Activity

Perimeter Solutions, Inc.
Last filing: Jun 30, 2026·8 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$212.7M
16 sells
-$212.7M
net selling
4
insiders
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ACTIVE SELLING CLUSTER

3 insiders sold a combined $17.1M of PRM between May 8, 2026 and May 22, 2026.

Sable Kyle, Emery Jeffrey, Khouri Haitham

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Windacre Partnership Llc
Insider
$195.6M
-$195.6M
Sable Kyle
Chief Financial Officer
$8.0M
-$8.0M
Khouri Haitham
Chief Executive Officer
$7.3M
-$7.3M
Emery Jeffrey
President - Global Fire Safety
$1.8M
-$1.8M

Recent transactions

Every Form 4 transaction for PRM, newest first.

SELL
Windacre Partnership Llc · Insider
Tx Jun 30·Filed Jun 30·EDGAR ↗
1,875,000 sh @ $33.90
$63.6M
SELL
Windacre Partnership Llc · Insider
Tx Jun 29·Filed Jun 30·EDGAR ↗
437,500 sh @ $33.00
$14.4M
SELL
Windacre Partnership Llc · Insider
Tx Jun 26·Filed Jun 30·EDGAR ↗
2,296,400 sh @ $34.40
$79.0M
SELL
Windacre Partnership Llc · Insider
Tx Jun 26·Filed Jun 30·EDGAR ↗
378,600 sh @ $36.22
$13.7M
SELL
Windacre Partnership Llc · Insider
Tx Jun 26·Filed Jun 30·EDGAR ↗
548,479 sh @ $34.51
$18.9M
SELL
Windacre Partnership Llc · Insider
Tx Jun 26·Filed Jun 30·EDGAR ↗
20,000 sh @ $36.25
$725K
SELL
Windacre Partnership Llc · Insider
Tx Jun 26·Filed Jun 30·EDGAR ↗
150,000 sh @ $34.98
$5.2M
SELL
Khouri Haitham · Chief Executive Officer
Tx May 22·Filed May 22·EDGAR ↗
117,511 sh @ $31.19
$3.7M
SELL
Khouri Haitham · Chief Executive Officer
Tx May 21·Filed May 22·EDGAR ↗
91,724 sh @ $31.91
$2.9M
SELL
Khouri Haitham · Chief Executive Officer
Tx May 20·Filed May 22·EDGAR ↗
20,300 sh @ $34.09
$692K
EXERCISE
Sable Kyle · Chief Financial Officer
Tx May 13·Filed May 15·EDGAR ↗
49,540 sh @ $8.36
$414K
SELL
Sable Kyle · Chief Financial Officer
Tx May 13·Filed May 15·EDGAR ↗
46,263 sh @ $33.05
$1.5M
SELL
Sable Kyle · Chief Financial Officer
Tx May 13·Filed May 15·EDGAR ↗
3,277 sh @ $33.59
$110K
EXERCISE
Emery Jeffrey · President - Global Fire Safety
Tx May 13·Filed May 15·EDGAR ↗
53,537 sh @ $8.36
$448K
SELL
Emery Jeffrey · President - Global Fire Safety
Tx May 13·Filed May 15·EDGAR ↗
53,537 sh @ $33.45
$1.8M
SELL
Sable Kyle · Chief Financial Officer
Tx May 12·Filed May 12·EDGAR ↗
30,000 sh @ $31.75
$953K
EXERCISE
Sable Kyle · Chief Financial Officer
Tx May 12·Filed May 12·EDGAR ↗
30,000 sh @ $8.36
$251K
SELL
Sable Kyle · Chief Financial Officer
Tx May 11·Filed May 12·EDGAR ↗
20,460 sh @ $32.89
$673K
EXERCISE
Sable Kyle · Chief Financial Officer
Tx May 11·Filed May 12·EDGAR ↗
20,460 sh @ $8.36
$171K
SELL
Sable Kyle · Chief Financial Officer
Tx May 8·Filed May 12·EDGAR ↗
150,000 sh @ $31.52
$4.7M
EXERCISE
Sable Kyle · Chief Financial Officer
Tx May 8·Filed May 12·EDGAR ↗
130,000 sh @ $8.36
$1.1M
EXERCISE
Sable Kyle · Chief Financial Officer
Tx May 8·Filed May 12·EDGAR ↗
20,000 sh @ $3.89
$78K

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About PRM insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for PRM from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying PRM always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Perimeter Solutions, Inc. (PRM) when they form.

Where does PRM insider trading data come from?

Every Form 4 filing for PRM is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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