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Potomac Capital Management’s Perma-Fix Environmental Services PESI Stock Holding History

Potomac Capital Management’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 		$6.82M Buy
477,000
+180,300
+61% +$2.01M 4.65% 4
2026
Q1 		$3.17M Sell
296,700
-45,100
-13% -$620K 2.76% 9
2025
Q4 		$4.3M Buy
+341,800
New +$4.36M 3.46% 6
2023
Q4 		$2.35M Buy
298,984
+2,513
+0.8% +$21.2K 2.73% 10
2023
Q3 		$3.1M Sell
296,471
-4,529
-2% -$49.9K 3.96% 7
2023
Q2 		$3.3M Sell
301,000
-23,000
-7% -$240K 3.39% 8
2023
Q1 		$3.82M Buy
324,000
+83,320
+35% +$542K 4% 6
2022
Q4 		$850K Buy
240,680
+10,100
+4% +$38.8K 0.99% 30
2022
Q3 		$1.03M Buy
230,580
+25,280
+12% +$130K 1.18% 26
2022
Q2 		$1.07M Sell
205,300
-100
-0% -$555 1.23% 24
2022
Q1 		$1.14M Buy
205,400
+1,700
+0.8% +$9.95K 0.98% 30
2021
Q4 		$1.29M Buy
+203,700
New +$1.41M 1.13% 21

Other funds holding PESI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
MCO
MAK Capital One New York $714M AUM 68.07% 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
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

Potomac Capital Management's PESI Position: Q2 2026 in Review

Potomac Capital Management increased its Perma-Fix Environmental Services (PESI) stake by 61% in Q2 2026, buying an estimated $2.01M and bringing the position to 477,000 shares worth $6.82M. The position accounts for 4.65% of the portfolio, ranked #4.

Potomac Capital Management first reported a position in PESI in Q4 2021 and has held it in 12 quarters since. 89 funds tracked by Wall St. Rank hold PESI as of Q2 2026.

  • Potomac Capital Management held 477,000 shares of Perma-Fix Environmental Services worth $6.82M as of Q2 2026.
  • Potomac Capital Management bought 180,300 Perma-Fix Environmental Services shares in Q2 2026, an estimated $2.01M.
  • Perma-Fix Environmental Services made up 4.65% of Potomac Capital Management's portfolio in Q2 2026, its #4 holding.
  • Potomac Capital Management first reported a position in Perma-Fix Environmental Services in Q4 2021 and has held it in 12 quarters since.
  • 89 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q2 2026.

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