PRM SEC Filing News — Perimeter Solutions, Inc.

Latest SEC filings for Perimeter Solutions, Inc. (PRM) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-07-31.

Perimeter Solutions, Inc. manufactures and supplies firefighting products, electronic components, lubricant additives, and engineered machinery in the United States, Germany, and internationally. It operates in two segments, Fire Safety and Specialty Products. The Fire Safety segment provides fire retardants and firefighting foams, as well as specialized equipment and services for federal, state, provincial, local/municipal, and commercial customers. The Specialty Products segment develops, prod…
Sector: Basic Materials Industry: Specialty Chemicals Market Cap: $4.3B CIK: 1880319
20
Total Filings
0
Bullish Classifications
6
Bearish Classifications
6
Insider Transactions
2
Material Events (8-K)
1
Periodic Reports
Rule-based classifications for PRM currently lean bearish. Of the 20 filing records displayed, 6 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
PRM Filing Activity Snapshot 2026-05-08 — 2026-07-31
Insider Transactions (Form 4)
0 buys vs 6 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$195.61M
WINDACRE PARTNERSHIP LLC (10% Owner) · 2026-06-30
5,705,979 shares · Form 4
Form 144 Notices
11
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 6 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 6 filings in this group are Form 4s for Perimeter Solutions, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 6 insider filings shown, the breakdown is 6 open-market sale. 6 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×6
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Form 4 Open-market sale Insider Selling 2026-06-30

PRM insider WINDACRE PARTNERSHIP LLC (10% Owner) sold 5,705,979 shares (~$195.61M)

WINDACRE PARTNERSHIP LLC, listed as 10% Owner at Perimeter Solutions, Inc., reported an open-market sale of 5,705,979 PRM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 378,600 $36.22 $13.71M
S Open-market sale 150,000 $34.98 $5.25M
S Open-market sale 2,296,400 $34.40 $79.00M
S Open-market sale 20,000 $36.25 $725.0K
S Open-market sale 548,479 $34.51 $18.93M
S Open-market sale 437,500 $33.00 $14.44M
S Open-market sale 1,875,000 $33.90 $63.56M
Filing: Form 4 (Insider Transaction) Insider: WINDACRE PARTNERSHIP LLC (10% Owner) Shares: 5,705,979 Est. Value: $195.61M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-05-22

PRM insider Khouri Haitham (Director, Chief Executive Officer) sold 229,535 shares (~$7.28M)

Khouri Haitham, listed as Director, Chief Executive Officer at Perimeter Solutions, Inc., reported an open-market sale of 229,535 PRM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 20,300 $34.09 $692.0K
S Open-market sale 91,724 $31.91 $2.93M
S Open-market sale 117,511 $31.19 $3.67M
Filing: Form 4 (Insider Transaction) Insider: Khouri Haitham (Director, Chief Executive Officer) Shares: 229,535 Est. Value: $7.28M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-05-15

PRM insider Sable Kyle (Chief Financial Officer) sold 49,540 shares (~$1.64M)

Sable Kyle, listed as Chief Financial Officer at Perimeter Solutions, Inc., reported an open-market sale of 49,540 PRM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 49,540 $8.36 $414.2K
S Open-market sale 46,263 $33.05 $1.53M
S Open-market sale 3,277 $33.59 $110.1K
M Option exercise derivative · Stock Option (right to buy) 49,540 — —
Filing: Form 4 (Insider Transaction) Insider: Sable Kyle (Chief Financial Officer) Shares: 49,540 Est. Value: $1.64M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-05-15

PRM insider Emery Jeffrey (President - Global Fire Safety) sold 53,537 shares (~$1.79M)

Emery Jeffrey, listed as President - Global Fire Safety at Perimeter Solutions, Inc., reported an open-market sale of 53,537 PRM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 53,537 $8.36 $447.6K
S Open-market sale 53,537 $33.45 $1.79M
M Option exercise derivative · Stock Option (right to buy) 53,537 — —
Filing: Form 4 (Insider Transaction) Insider: Emery Jeffrey (President - Global Fire Safety) Shares: 53,537 Est. Value: $1.79M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-05-12

PRM insider Emery Jeffrey (President - Global Fire Safety) sold 146,463 shares (~$4.78M)

Emery Jeffrey, listed as President - Global Fire Safety at Perimeter Solutions, Inc., reported an open-market sale of 146,463 PRM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 46,500 $8.36 $388.7K
S Open-market sale 46,500 $32.00 $1.49M
M Option exercise 99,963 $8.36 $835.7K
S Open-market sale 97,855 $32.90 $3.22M
S Open-market sale 2,108 $34.05 $71.8K
M Option exercise derivative · Stock Option (right to buy) 46,500 — —
M Option exercise derivative · Stock Option (right to buy) 99,963 — —
Filing: Form 4 (Insider Transaction) Insider: Emery Jeffrey (President - Global Fire Safety) Shares: 146,463 Est. Value: $4.78M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-05-12

PRM insider Sable Kyle (Chief Financial Officer) sold 200,460 shares (~$6.35M)

Sable Kyle, listed as Chief Financial Officer at Perimeter Solutions, Inc., reported an open-market sale of 200,460 PRM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 20,000 $3.89 $77.8K
M Option exercise 130,000 $8.36 $1.09M
S Open-market sale 150,000 $31.52 $4.73M
M Option exercise 20,460 $8.36 $171.0K
S Open-market sale 20,460 $32.89 $672.9K
M Option exercise 30,000 $8.36 $250.8K
S Open-market sale 30,000 $31.75 $952.5K
M Option exercise derivative · Stock Option (right to buy) 20,000 — —
M Option exercise derivative · Stock Option (right to buy) 130,000 — —
M Option exercise derivative · Stock Option (right to buy) 20,460 — —
M Option exercise derivative · Stock Option (right to buy) 30,000 — —
Filing: Form 4 (Insider Transaction) Insider: Sable Kyle (Chief Financial Officer) Shares: 200,460 Est. Value: $6.35M
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 11 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Perimeter Solutions, Inc. has 11 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-06-12

PRM Form 144 filed for proposed insider sale by Vivek Raj (78,569 shares) ~$2.75M

Vivek Raj filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Vivek Raj Shares: 78,569 Est. Value: $2.75M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-06-12

PRM Form 144 filed for proposed insider sale by Vivek Raj (43,132 shares) ~$1.51M

Vivek Raj filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Vivek Raj Shares: 43,132 Est. Value: $1.51M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-22

PRM Form 144 filed for proposed insider sale by Haitham Khouri (117,511 shares) ~$3.65M

Haitham Khouri filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Haitham Khouri Shares: 117,511 Est. Value: $3.65M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-21

PRM Form 144 filed for proposed insider sale by Haitham Khouri (91,724 shares) ~$2.88M

Haitham Khouri filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Haitham Khouri Shares: 91,724 Est. Value: $2.88M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-20

PRM Form 144 filed for proposed insider sale by Haitham Khouri (20,300 shares) ~$680.0K

Haitham Khouri filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Haitham Khouri Shares: 20,300 Est. Value: $680.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-13

PRM Form 144 filed for proposed insider sale by KYLE J SABLE (49,540 shares) ~$1.64M

KYLE J SABLE filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: KYLE J SABLE Shares: 49,540 Est. Value: $1.64M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-13

PRM Form 144 filed for proposed insider sale by JEFFREY EMERY (53,537 shares) ~$1.79M

JEFFREY EMERY filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: JEFFREY EMERY Shares: 53,537 Est. Value: $1.79M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-12

PRM Form 144 filed for proposed insider sale by KYLE J SABLE (30,000 shares) ~$952.4K

KYLE J SABLE filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: KYLE J SABLE Shares: 30,000 Est. Value: $952.4K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-11

PRM Form 144 filed for proposed insider sale by KYLE J SABLE (20,460 shares) ~$672.8K

KYLE J SABLE filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: KYLE J SABLE Shares: 20,460 Est. Value: $672.8K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-11

PRM Form 144 filed for proposed insider sale by JEFFREY EMERY (99,963 shares) ~$3.29M

JEFFREY EMERY filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: JEFFREY EMERY Shares: 99,963 Est. Value: $3.29M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-05-08

PRM Form 144 filed for proposed insider sale by KYLE J SABLE (150,000 shares) ~$4.73M

KYLE J SABLE filed a Form 144 with the SEC indicating intent to sell PRM (Perimeter Solutions, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: KYLE J SABLE Shares: 150,000 Est. Value: $4.73M
View on SEC EDGAR → Open Filing Document →
Material Events 2 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 2 in this period for Perimeter Solutions, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-07-31

PRM filed 8-K — material company event

Perimeter Solutions, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-05-28

PRM filed 8-K — material company event

Perimeter Solutions, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Perimeter Solutions, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-07-31

PRM filed Quarterly Report (10-Q)

Perimeter Solutions, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
View on SEC EDGAR → Open Filing Document →

How we classify Perimeter Solutions, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on PRM. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — PRM SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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