| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Thorndike William N Jr | Director | C/O PERIMETER SOLUTIONS, INC., 8000 MARYLAND AVE., SUITE 350, CLAYTON | /s/ Noriko Yokozuka, as Attorney-in-Fact | 06 Mar 2026 | 0001437827 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRM | Common Stock | Sale | $3,032,500 | -125,000 | -1.4% | $24.26 | 9,060,656 | 04 Mar 2026 | Direct | F1 |
| transaction | PRM | Common Stock | Sale | $2,406,000 | -100,000 | -1.1% | $24.06 | 8,960,656 | 05 Mar 2026 | Direct | F2 |
| transaction | PRM | Common Stock | Sale | $2,363,000 | -100,000 | -1.1% | $23.63 | 8,860,656 | 06 Mar 2026 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | Represents the weighted average price of the shares sold on March 4, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $23.85 to $24.53 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. |
| F2 | Represents the weighted average price of the shares sold on March 5, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $23.66 to $24.40 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. |
| F3 | Represents the weighted average price of the shares sold on March 6, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $23.37 to $23.99 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. |