| 05/11/2026 4:23 PM | Emery Jeffrey (1926809) Reporting Perimeter Solutions (1880319) Subject | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 05/11/2026 4:29 PM | Perimeter Solutions (1880319) Subject Sable Kyle (2001580) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 05/08/2026 3:43 PM | Perimeter Solutions (1880319) Subject Sable Kyle (2001580) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 05/08/2026 3:32 PM | Emery Jeffrey (1926809) Reporting Perimeter Solutions (1880319) Subject | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 05/06/2026 8:22 AM | Perimeter Solutions (1880319) Filer | Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
| 05/06/2026 5:44 AM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 04/24/2026 4:32 PM | Howley W Nicholas (1352573) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 04/17/2026 7:48 AM | Perimeter Solutions (1880319) Filer | Form DEF 14A | |
| 04/17/2026 7:49 AM | Perimeter Solutions (1880319) Filer | Form DEFA14A | |
| 04/17/2026 7:49 AM | Perimeter Solutions (1880319) Filer | Form ARS | |
| 04/03/2026 4:25 PM | Howley W Nicholas (1352573) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
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| 03/26/2026 9:50 AM | Perimeter Solutions (1880319) Subject VANGUARD GROUP INC (102909) Filed by | Form SCHEDULE 13G/A | |
| 03/12/2026 11:29 AM | Perimeter Solutions (1880319) Subject Thorndike William N Jr (1437827) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 03/11/2026 6:19 PM | Perimeter Solutions (1880319) Issuer Thorndike William N Jr (1437827) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/10/2026 5:12 PM | Perimeter Solutions (1880319) Subject Thorndike William N Jr (1437827) Filed by | Form SCHEDULE 13D | |
| 03/06/2026 5:09 PM | Perimeter Solutions (1880319) Issuer Thorndike William N Jr (1437827) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/05/2026 6:02 PM | Khouri Haitham (1892618) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/05/2026 6:02 PM | Howley W Nicholas (1352573) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/05/2026 6:02 PM | Perimeter Solutions (1880319) Issuer Raj Vivek (1708641) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/05/2026 6:03 PM | Perimeter Solutions (1880319) Issuer Thorndike William N Jr (1437827) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/05/2026 6:03 PM | Cool Tracy Britt (1646517) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/05/2026 12:38 PM | Perimeter Solutions (1880319) Subject Thorndike William N Jr (1437827) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 03/04/2026 10:49 AM | Perimeter Solutions (1880319) Subject Thorndike William N Jr (1437827) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 03/02/2026 4:27 PM | Perimeter Solutions (1880319) Issuer Valladares III Jorge L. (1432892) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:27 PM | Perimeter Solutions (1880319) Issuer Raj Vivek (1708641) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:28 PM | Cool Tracy Britt (1646517) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:28 PM | Henderson Robert S (1352561) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:28 PM | HENNESSY SEAN P (1203507) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:29 PM | Perimeter Solutions (1880319) Issuer Yokozuka Noriko (1892197) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:29 PM | Perimeter Solutions (1880319) Issuer Sable Kyle (2001580) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:29 PM | Emery Jeffrey (1926809) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:30 PM | Khouri Haitham (1892618) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:30 PM | Bowman Grant (2040223) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/02/2026 4:30 PM | Iversen Bernt G II (1366888) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 02/26/2026 8:53 AM | Perimeter Solutions (1880319) Filer | Form 10-K Annual report pursuant to Section 13 or 15(d) | |
| 02/26/2026 7:09 AM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 01/22/2026 4:16 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 01/02/2026 3:05 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 12/29/2025 4:00 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 12/16/2025 4:15 PM | Perimeter Solutions (1880319) Issuer Sable Kyle (2001580) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 12/16/2025 4:15 PM | Perimeter Solutions (1880319) Issuer Yokozuka Noriko (1892197) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
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| 12/15/2025 4:01 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 12/12/2025 3:17 PM | Perimeter Solutions (1880319) Subject Sable Kyle (2001580) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 12/12/2025 3:18 PM | Perimeter Solutions (1880319) Subject Yokozuka Noriko (1892197) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 12/11/2025 5:37 PM | Perimeter Solutions (1880319) Issuer Thorndike William N Jr (1437827) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 12/10/2025 3:16 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 11/26/2025 5:42 PM | Howley W Nicholas (1352573) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 11/06/2025 3:16 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 11/05/2025 10:44 AM | FMR LLC (315066) Filed by Perimeter Solutions (1880319) Subject | Form SCHEDULE 13G | |
| 10/31/2025 3:14 PM | Goldberg Edward D. (1893007) Reporting Perimeter Solutions (1880319) Subject | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 10/30/2025 8:21 AM | Perimeter Solutions (1880319) Filer | Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
| 10/30/2025 6:56 AM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 09/15/2025 4:36 PM | Perimeter Solutions (1880319) Issuer Raj Vivek (1708641) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 09/11/2025 3:47 PM | Perimeter Solutions (1880319) Subject Raj Vivek (1708641) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 09/08/2025 4:47 PM | Emery Jeffrey (1926809) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 09/08/2025 4:50 PM | Perimeter Solutions (1880319) Issuer Sable Kyle (2001580) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 09/05/2025 3:12 PM | Goldberg Edward D. (1893007) Reporting Perimeter Solutions (1880319) Subject | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 09/04/2025 3:51 PM | Goldberg Edward D. (1893007) Reporting Perimeter Solutions (1880319) Subject | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 09/04/2025 3:52 PM | Emery Jeffrey (1926809) Reporting Perimeter Solutions (1880319) Subject | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
| 08/07/2025 8:13 AM | Perimeter Solutions (1880319) Filer | Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
| 08/07/2025 7:03 AM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 07/01/2025 4:30 PM | Amin Snehal (1893660) Reporting Perimeter Solutions (1880319) Issuer WAPGP LLC (1893648) Reporting WindAcre General Partner LP (1893721) Reporting WINDACRE PARTNERSHIP LLC (1599383) Reporting WindAcre Partnership Master Fund, LP (1893715) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 06/24/2025 3:46 PM | Perimeter Solutions (1880319) Issuer Thorndike William N Jr (1437827) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 06/24/2025 3:47 PM | Khouri Haitham (1892618) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 06/24/2025 3:48 PM | Perimeter Solutions (1880319) Issuer Raj Vivek (1708641) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 06/24/2025 3:50 PM | Howley W Nicholas (1352573) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 06/24/2025 3:51 PM | Cool Tracy Britt (1646517) Reporting Perimeter Solutions (1880319) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 05/29/2025 3:31 PM | Perimeter Solutions (1880319) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 05/23/2025 3:45 PM | Perimeter Solutions (1880319) Issuer Raj Vivek (1708641) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 05/15/2025 5:44 PM | Perimeter Solutions (1880319) Issuer Raj Vivek (1708641) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 05/13/2025 3:23 PM | Perimeter Solutions (1880319) Subject Raj Vivek (1708641) Reporting | Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |