Perimeter Solutions Inc

CUSIP 71385M107COMMON STOCKPRMQ1 2026

13D / 13G Filings

Schedule 13D/13G on record

Beneficial Filers

Distinct reporting persons

Largest Stake

6.7%

Max % of class reported

Institutional Holders

284

13F filers (latest quarter)

5 filings · latest Mar 10, 2026

#	Filed	Reporting Person	Form	% of Class	Shares	Filing
1	Mar 10, 2026	William N. Thorndike, Jr.	13D	5.7%	—	SEC
2	Nov 5, 2025	Fmr LLC	13G	6.7%	9.76M	SEC
3	Feb 12, 2025	Matrix Capital Management Company LP	13G/A	4.5%	6.55M	SEC
4	Jan 31, 2025	The Vanguard Group	13G	5.6%	8.21M	SEC
5	Nov 22, 2024	Meritage Group LP	13G/A	4.2%	6.11M	SEC

Largest reported positions · latest quarter

#	Fund	Shares	Value
1	Windacre Partnership LLC	21.85M	$533.69M
2	Principal Financial Group Inc	12.51M	$305.57M
3	Blackrock, Inc.	10.83M	$264.45M
4	Fmr LLC	9.04M	$220.74M
5	Dimensional Fund Advisors LP	4.76M	$116.29M
6	Janus Henderson Group PLC	4.01M	$97.86M
7	Df Dent & Co Inc	3.93M	$96.03M
8	Geode Capital Management, LLC	3.80M	$92.73M
9	State Street Corp	3.24M	$79.22M
10	Balance Capital Partners L.P.	2.74M	$66.80M