Ken Griffin
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Ken Griffin’s Perimeter Solutions PRM Stock Holding History

Ken Griffin’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 		$1.2M Sell
49,200
-51,500
-51% -$1.31M ﹤0.01% 7248
2025
Q4 		$2.77M Buy
100,700
+38,100
+61% +$962K ﹤0.01% 5317
2025
Q3 		$1.4M Buy
62,600
+4,700
+8% +$89.1K ﹤0.01% 6807
2025
Q2 		$806K Buy
57,900
+29,700
+105% +$343K ﹤0.01% 7555
2025
Q1 		$284K Sell
28,200
-4,400
-13% -$49.3K ﹤0.01% 9724
2024
Q4 		$417K Sell
32,600
-21,200
-39% -$277K ﹤0.01% 8965
2024
Q3 		$724K Buy
53,800
+20,900
+64% +$216K ﹤0.01% 7476
2024
Q2 		$258K Buy
32,900
+16,100
+96% +$120K ﹤0.01% 9431
2024
Q1 		$125K Buy
16,800
+3,500
+26% +$18.8K ﹤0.01% 11059
2023
Q4 		$61.2K Buy
13,300
+12,400
+1,378% +$47.6K ﹤0.01% 11570
2023
Q3 		$4.09K Sell
900
-700
-44% -$3.9K ﹤0.01% 13518
2023
Q2 		$9.84K Buy
1,600
+1,100
+220% +$7.37K ﹤0.01% 13238
2023
Q1 		$4.04K Sell
500
-2,700
-84% -$23.3K ﹤0.01% 13991
2022
Q4 		$29.2K Buy
+3,200
New +$28.2K ﹤0.01% 12779

Other funds holding PRM

WPL
WINDACRE PARTNERSHIP LLC Houston, Texas $9.34B AUM 17.41% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
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
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Janus Henderson Group
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
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Ken Griffin's PRM Position: Q1 2026 in Review

Ken Griffin increased its Perimeter Solutions (PRM) stake by 35% in Q1 2026, buying an estimated $2.17M and bringing the position to 329,650 shares worth $8.05M. The position accounts for ﹤0.01% of the portfolio, ranked #3577.

Ken Griffin first reported a position in PRM in Q4 2021 and has held it in 17 quarters since. 292 funds tracked by Wall St. Rank hold PRM as of Q1 2026.

  • Ken Griffin held 329,650 shares of Perimeter Solutions worth $8.05M as of Q1 2026.
  • Ken Griffin bought 84,902 Perimeter Solutions shares in Q1 2026, an estimated $2.17M.
  • Perimeter Solutions made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #3577 holding.
  • Ken Griffin first reported a position in Perimeter Solutions in Q4 2021 and has held it in 17 quarters since.
  • 292 funds tracked by Wall St. Rank held Perimeter Solutions as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.