Simplex Trading’s Perimeter Solutions PRM Stock Holding History

Simplex Trading’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 Q2	$10.7K	Hold	300	–	–	﹤0.01%	7648
2026 Q1	$7.33K	Sell	300 -5,000	-94%	-$128K	﹤0.01%	7621
2025 Q4	$146K	Buy	5,300 +2,700	+104%	+$68.2K	﹤0.01%	4569
2025 Q3	$58K	Buy	2,600 +1,500	+136%	+$28.4K	﹤0.01%	6309
2025 Q2	$15K	Buy	+1,100	New	+$12.7K	﹤0.01%	7021
2025 Q1	–	Sell	-100	Closed	-$1K	–	9411
2024 Q4	$1K	Sell	100 -700	-88%	-$9.14K	﹤0.01%	8290
2024 Q3	$10K	Sell	800 -11,400	-93%	-$118K	﹤0.01%	7200
2024 Q2	$95K	Buy	+12,200	New	+$91.2K	﹤0.01%	5430
2023 Q2	–	Sell	-400	Closed	-$3K	–	9730
2023 Q1	$3K	Hold	400	–	–	﹤0.01%	8341
2022 Q4	$3K	Buy	+400	New	+$3.52K	﹤0.01%	8413

Other funds holding PRM

WPL

WINDACRE PARTNERSHIP LLC Houston, Texas $10.1B AUM 10.46% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jupiter Topco New York $245B AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

DDC

DF Dent & Co Baltimore, Maryland $5.27B AUM 7.89% 1-Year Est. Return

Simplex Trading's PRM Position: Q2 2026 in Review

Simplex Trading increased its Perimeter Solutions (PRM) stake by 359% in Q2 2026, buying an estimated $221K and bringing the position to 9,058 shares worth $323K. The position accounts for ﹤0.01% of the portfolio, ranked #4138.

Simplex Trading first reported a position in PRM in Q3 2022 and has held it in 11 quarters since. The position peaked at $960K in Q4 2025. 311 funds tracked by Wall St. Rank hold PRM as of Q2 2026.

Simplex Trading held 9,058 shares of Perimeter Solutions worth $323K as of Q2 2026.
Simplex Trading bought 7,086 Perimeter Solutions shares in Q2 2026, an estimated $221K.
Perimeter Solutions made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #4138 holding.
Simplex Trading first reported a position in Perimeter Solutions in Q3 2022 and has held it in 11 quarters since.
Simplex Trading's Perimeter Solutions position peaked at $960K in Q4 2025.
311 funds tracked by Wall St. Rank held Perimeter Solutions as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.