Perimeter Solutions, Inc.
Ownership
Ownership Structure
Who owns Perimeter Solutions, Inc. (PRM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.3% of the shares are freely tradable; institutional investors hold 83.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| WINDACRE PARTNERSHIP LLC | 9.87 | 16,148,621 | -26.1 | 06/30/2026 |
| Principal Financial Group Inc | 8.56 | 14,007,326 | +11.9 | 06/30/2026 |
| BlackRock Inc | 6.62 | 10,829,380 | -0.3 | 03/31/2026 |
| FMR Inc | 5.52 | 9,039,110 | +3.1 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.77 | 6,175,487 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 2.64 | 4,315,745 | -9.4 | 06/30/2026 |
| HHG PLC | 2.45 | 4,007,536 | +8.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Principal MidCap R5 | 5.74 | 9,389,985 | +2.6 | 07/31/2026 |
| Principal Aligned MidCap Equity | 5.59 | 9,151,796 | +10.5 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.86 | 4,678,371 | +0.3 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.