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Trexquant Investment’s Perma-Fix Environmental Services PESI Stock Holding History

Trexquant Investment’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
Q4 		– Sell
-42,156
Closed -$426K – 1845
2025
Q3 		$426K Buy
+42,156
New +$466K ﹤0.01% 1352
2024
Q1 		– Sell
-17,912
Closed -$141K – 1695
2023
Q4 		$141K Sell
17,912
-5,996
-25% -$50.7K ﹤0.01% 1357
2023
Q3 		$250K Buy
+23,908
New +$263K 0.01% 1283

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
MCO
MAK Capital One New York $679M AUM 29.02% 1-Year Est. Return
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1B AUM 51.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
HA
Heartland Advisors Milwaukee, Wisconsin $1.96B AUM 28.26% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $16B AUM 4.15% 1-Year Est. Return
PCM
Potomac Capital Management New York $115M AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
PCM
Perritt Capital Management Chicago, Illinois $59.8M AUM 26.94% 1-Year Est. Return

Trexquant Investment's PESI Position: Q4 2025 in Review

Trexquant Investment sold out of Perma-Fix Environmental Services (PESI) in Q4 2025, closing a stake of 42,156 shares — an estimated $426K sold.

Trexquant Investment first reported a position in PESI in Q3 2023 and held it in 3 quarters. The position peaked at $426K in Q3 2025. 84 funds tracked by Wall St. Rank hold PESI as of Q4 2025.

  • Trexquant Investment reported no remaining Perma-Fix Environmental Services position as of Q4 2025 after selling out during the quarter.
  • Trexquant Investment sold 42,156 Perma-Fix Environmental Services shares in Q4 2025, an estimated $426K.
  • Trexquant Investment first reported a position in Perma-Fix Environmental Services in Q3 2023 and held it in 3 quarters.
  • Trexquant Investment's Perma-Fix Environmental Services position peaked at $426K in Q3 2025.
  • 84 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q4 2025.

Based on Trexquant Investment's 13F filing for Q4 2025, filed 17 Feb 2026.