Perimeter Solutions (PRM) CFO exercises options, sells 200,460 Common Stock shares

Rhea-AI Filing Summary

Perimeter Solutions, Inc. Chief Financial Officer Sable Kyle reported option exercises followed by open-market sales of Common Stock. On May 8–12, 2026, Kyle exercised stock options covering 200,460 shares at exercise prices of $8.36 and $3.89 per share and sold 200,460 shares of Common Stock in the open market.

The reported sales included 150,000 shares at a weighted-average price of $31.52, 20,460 shares at a weighted-average price of $32.89, and 30,000 shares at a weighted-average price of $31.75, with actual trade prices ranging from approximately $31.00 to $33.16 per share as described in the footnotes.

Insights

Equity compensation analyst

CFO exercised options and sold an equal number of shares in the market.

The Form 4 for Perimeter Solutions, Inc. shows CFO Sable Kyle exercising stock options for 200,460 shares of Common Stock at exercise prices of $8.36 and $3.89 per share, then selling 200,460 shares in open-market transactions.

These transactions follow a classic exercise-and-sell pattern: derivative transactions coded "M" convert options into shares, while code "S" reflects open-market sales. The weighted-average sale prices range from about $31.00 to just over $33.00 per share, based on footnote disclosures.

The filing’s transactionSummary reports netSellShares of 200,460 and netBuySellDirection as "net-sell," and derivativeSummary is empty, indicating the options referenced here were fully exercised with no remaining derivative position from these specific grants visible in this filing. The overall impact is typically viewed as routine liquidity rather than a change in company fundamentals.

Insider Trade Summary

Net Seller: 200,460 shares ($6,353,429)

Net Sell 11 txns

Insider Sable Kyle

Role Chief Financial Officer

Sold 200,460 shs ($6.35M)

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	30,000	$0.00	--
Exercise	Common Stock	30,000	$8.36	$251K
Sale	Common Stock	30,000	$31.75	$953K
Exercise	Stock Option (right to buy)	20,460	$0.00	--
Exercise	Common Stock	20,460	$8.36	$171K
Sale	Common Stock	20,460	$32.89	$673K
Exercise	Stock Option (right to buy)	20,000	$0.00	--
Exercise	Stock Option (right to buy)	130,000	$0.00	--
Exercise	Common Stock	20,000	$3.89	$78K
Exercise	Common Stock	130,000	$8.36	$1.09M
Sale	Common Stock	150,000	$31.52	$4.73M

Holdings After Transaction: Stock Option (right to buy) — 119,540 shares (Direct, null); Common Stock — 30,000 shares (Direct, null)

Footnotes (1)

1. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $31.00 to $32.00 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $32.89 to $33.16 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $31.50 to $32.12 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

Key Figures

Shares sold: 200,460 shares Shares exercised: 200,460 shares Exercise price 1: $8.36 per share +5 more

8 metrics

Shares sold 200,460 shares Total Common Stock sold across May 8–12, 2026

Shares exercised 200,460 shares Total shares acquired via option exercises (code M)

Exercise price 1 $8.36 per share Stock options on Common Stock exercised by CFO

Exercise price 2 $3.89 per share Additional stock options on Common Stock exercised

Weighted-average sale price (150,000 shares) $31.52 per share Common Stock sale on May 8, 2026

Weighted-average sale price (20,460 shares) $32.89 per share Common Stock sale on May 11, 2026

Weighted-average sale price (30,000 shares) $31.75 per share Common Stock sale on May 12, 2026

Price range of sales $31.00–$33.16 per share Ranges from footnote F1–F3 for May 8–12, 2026

Key Terms

open-market sale, Stock Option (right to buy), derivative security, weighted average price, +1 more

5 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Stock Option (right to buy) financial

"security_title": "Stock Option (right to buy)""

derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

weighted average price financial

"Represents the weighted average price of the shares sold."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

net-sell financial

"netBuySellDirection": "net-sell""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sable Kyle

(Last) (First) (Middle)

C/O PERIMETER SOLUTIONS, INC.

8000 MARYLAND AVE., SUITE 350

(Street)

CLAYTON MISSOURI 63105

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Perimeter Solutions, Inc. [ PRM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/08/2026		M		20,000	A	$3.89	20,000	D
Common Stock	05/08/2026		M		130,000	A	$8.36	150,000	D
Common Stock	05/08/2026		S		150,000	D	$31.52(1)	0	D
Common Stock	05/11/2026		M		20,460	A	$8.36	20,460	D
Common Stock	05/11/2026		S		20,460	D	$32.89(2)	0	D
Common Stock	05/12/2026		M		30,000	A	$8.36	30,000	D
Common Stock	05/12/2026		S		30,000	D	$31.75(3)	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$3.89	05/08/2026		M			20,000	02/26/2026	11/16/2033	Common Stock	20,000	$0	0	D
Stock Option (right to buy)	$8.36	05/08/2026		M			130,000	02/26/2026	05/06/2032	Common Stock	130,000	$0	170,000	D
Stock Option (right to buy)	$8.36	05/11/2026		M			20,460	02/26/2026	05/06/2032	Common Stock	20,460	$0	149,540	D
Stock Option (right to buy)	$8.36	05/12/2026		M			30,000	02/26/2026	05/06/2032	Common Stock	30,000	$0	119,540	D

Explanation of Responses:

1. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $31.00 to $32.00 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

2. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $32.89 to $33.16 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

3. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $31.50 to $32.12 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Noriko Yokozuka, as Attorney-in-Fact	05/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Perimeter Solutions (PRM) CFO Sable Kyle report in this Form 4?

Perimeter Solutions CFO Sable Kyle reported exercising stock options for 200,460 Common Stock shares and selling 200,460 shares in open-market transactions. The filings cover trades between May 8 and May 12, 2026, with detailed share counts and prices disclosed.

How many Perimeter Solutions (PRM) shares did the CFO sell and at what prices?

The CFO sold 200,460 Common Stock shares. Reported weighted-average sale prices were $31.52, $32.89, and $31.75 per share. Footnotes state actual trade prices ranged from approximately $31.00 to $33.16 per share across the May 8–12, 2026 transactions.

What stock options did the Perimeter Solutions (PRM) CFO exercise in this filing?

The CFO exercised options covering 200,460 shares of Common Stock. These derivative transactions included options with exercise prices of $8.36 and $3.89 per share, converting option positions into shares that were then sold in the market according to the Form 4 disclosures.

Does the Perimeter Solutions (PRM) Form 4 show a net buy or net sell by the CFO?

The Form 4 shows a net sell position. Transaction summary data lists netSellShares of 200,460 and netBuySellDirection as "net-sell," reflecting that the number of shares sold in open-market transactions matched the number of shares acquired through option exercises.

Were the Perimeter Solutions (PRM) CFO’s sales single-price trades or ranges of prices?

The reported prices are weighted averages, with trades executed across price ranges. Footnotes explain May 8–12, 2026 sales occurred between approximately $31.00 and $33.16 per share, and the CFO will provide exact share counts at each price upon request.