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MAK Capital One’s Perma-Fix Environmental Services PESI Stock Holding History

MAK Capital One’s Portfolio PESI Stock Details PESI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$14.8M Buy
1,032,958
+114,285
+12% +$1.27M 2.07% 16
2026
Q1 		$9.82M Hold
918,673
– – 1.45% 18
2025
Q4 		$11.6M Buy
918,673
+103,097
+13% +$1.31M 1.27% 14
2025
Q3 		$8.24M Buy
815,576
+722,966
+781% +$7.99M 1.27% 12
2025
Q2 		$974K Buy
+92,610
New +$852K 0.14% 16

Other funds holding PESI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1.16B AUM 53.61% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return
KCM
Kennedy Capital Management St Louis, Missouri $5.65B AUM 61.31% 1-Year Est. Return
PCM
Potomac Capital Management New York $147M AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
HA
Heartland Advisors Milwaukee, Wisconsin $2.25B AUM 44.61% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

MAK Capital One's PESI Position: Q2 2026 in Review

MAK Capital One increased its Perma-Fix Environmental Services (PESI) stake by 12% in Q2 2026, buying an estimated $1.27M and bringing the position to 1,032,958 shares worth $14.8M. The position accounts for 2.07% of the portfolio, ranked #16.

MAK Capital One first reported a position in PESI in Q2 2025 and has held it in 5 quarters since. 89 funds tracked by Wall St. Rank hold PESI as of Q2 2026.

  • MAK Capital One held 1,032,958 shares of Perma-Fix Environmental Services worth $14.8M as of Q2 2026.
  • MAK Capital One bought 114,285 Perma-Fix Environmental Services shares in Q2 2026, an estimated $1.27M.
  • Perma-Fix Environmental Services made up 2.07% of MAK Capital One's portfolio in Q2 2026, its #16 holding.
  • MAK Capital One first reported a position in Perma-Fix Environmental Services in Q2 2025 and has held it in 5 quarters since.
  • 89 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q2 2026.

Based on MAK Capital One's 13F filing for Q2 2026, filed 14 Aug 2026.