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Thompson Siegel & Walmsley’s Perma-Fix Environmental Services PESI Stock Holding History

Thompson Siegel & Walmsley’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
2025
Q2 		– Sell
-104,778
Closed -$762K – 414
2025
Q1 		$762K Sell
104,778
-110,822
-51% -$996K 0.01% 303
2024
Q4 		$2.39M Buy
215,600
+10,741
+5% +$141K 0.04% 240
2024
Q3 		$2.51M Sell
204,859
-34,132
-14% -$365K 0.04% 244
2024
Q2 		$2.42M Buy
+238,991
New +$2.65M 0.04% 236

Other funds holding PESI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1B AUM 51.95% 1-Year Est. Return
HA
Heartland Advisors Milwaukee, Wisconsin $1.96B AUM 28.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $16B AUM 4.15% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
EIM
Essex Investment Management Boston, Massachusetts $632M AUM 95.36% 1-Year Est. Return
AA
Ancora Advisors Cleveland, Ohio $4.7B AUM 19.05% 1-Year Est. Return
PCM
Perritt Capital Management Chicago, Illinois $59.8M AUM 26.94% 1-Year Est. Return

Thompson Siegel & Walmsley's PESI Position: Q2 2025 in Review

Thompson Siegel & Walmsley sold out of Perma-Fix Environmental Services (PESI) in Q2 2025, closing a stake of 104,778 shares — an estimated $762K sold.

Thompson Siegel & Walmsley first reported a position in PESI in Q2 2024 and held it in 4 quarters. The position peaked at $2.51M in Q3 2024. 69 funds tracked by Wall St. Rank hold PESI as of Q2 2025.

  • Thompson Siegel & Walmsley reported no remaining Perma-Fix Environmental Services position as of Q2 2025 after selling out during the quarter.
  • Thompson Siegel & Walmsley sold 104,778 Perma-Fix Environmental Services shares in Q2 2025, an estimated $762K.
  • Thompson Siegel & Walmsley first reported a position in Perma-Fix Environmental Services in Q2 2024 and held it in 4 quarters.
  • Thompson Siegel & Walmsley's Perma-Fix Environmental Services position peaked at $2.51M in Q3 2024.
  • 69 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q2 2025.

Based on Thompson Siegel & Walmsley's 13F filing for Q2 2025, filed 6 Aug 2025.