Mariner’s Perimeter Solutions PRM Stock Holding History

Mariner’s Portfolio PRM Stock Details PRM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.11M	Sell	45,357 -35,808	-44%	-$914K	﹤0.01%	1894
2025 Q4	$2.23M	Buy	81,165 +2,412	+3%	+$60.9K	﹤0.01%	1435
2025 Q3	$1.76M	Sell	78,753 -14,761	-16%	-$280K	﹤0.01%	1516
2025 Q2	$1.3M	Sell	93,514 -3,169	-3%	-$36.6K	﹤0.01%	1625
2025 Q1	$974K	Buy	96,683 +4,598	+5%	+$51.6K	﹤0.01%	1706
2024 Q4	$1.18M	Sell	92,085 -7,058	-7%	-$92.2K	﹤0.01%	1545
2024 Q3	$1.33M	Sell	99,143 -9,633	-9%	-$99.8K	﹤0.01%	1414
2024 Q2	$852K	Sell	108,776 -11,327	-9%	-$84.6K	﹤0.01%	1629
2024 Q1	$891K	Buy	120,103 +47,538	+66%	+$256K	﹤0.01%	1588
2023 Q4	$334K	Buy	72,565 +47,397	+188%	+$182K	﹤0.01%	2244
2023 Q3	$114K	Buy	+25,168	New	+$140K	﹤0.01%	2656
2023 Q2	–	Sell	-11,172	Closed	-$90K	–	2906
2023 Q1	$90K	Buy	+11,172	New	+$96.3K	﹤0.01%	2592

Other funds holding PRM

WPL

WINDACRE PARTNERSHIP LLC Houston, Texas $9.34B AUM 17.41% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

DDC

DF Dent & Co Baltimore, Maryland $5.22B AUM 2.07% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Mariner's PRM Position: Q1 2026 in Review

Mariner reduced its Perimeter Solutions (PRM) stake by 44% in Q1 2026, selling an estimated $914K and leaving 45,357 shares worth $1.11M. The position accounts for ﹤0.01% of the portfolio, ranked #1894.

Mariner first reported a position in PRM in Q1 2023 and has held it in 12 quarters since. The position peaked at $2.23M in Q4 2025. 291 funds tracked by Wall St. Rank hold PRM as of Q1 2026.

Mariner held 45,357 shares of Perimeter Solutions worth $1.11M as of Q1 2026.
Mariner sold 35,808 Perimeter Solutions shares in Q1 2026, an estimated $914K.
Perimeter Solutions made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #1894 holding.
Mariner first reported a position in Perimeter Solutions in Q1 2023 and has held it in 12 quarters since.
Mariner's Perimeter Solutions position peaked at $2.23M in Q4 2025.
291 funds tracked by Wall St. Rank held Perimeter Solutions as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.