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Heartland Advisors’s Perma-Fix Environmental Services PESI Stock Holding History

Heartland Advisors’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
Q1 		$4.28M Hold
400,000
– – 0.22% 171
2025
Q4 		$5.04M Sell
400,000
-58,250
-13% -$742K 0.27% 145
2025
Q3 		$4.63M Sell
458,250
-22,900
-5% -$253K 0.24% 147
2025
Q2 		$5.06M Buy
481,150
+25,750
+6% +$237K 0.28% 138
2025
Q1 		$3.31M Buy
455,400
+55,400
+14% +$498K 0.19% 159
2024
Q4 		$4.43M Sell
400,000
-100,000
-20% -$1.32M 0.24% 139
2024
Q3 		$6.13M Hold
500,000
– – 0.32% 121
2024
Q2 		$5.07M Hold
500,000
– – 0.28% 127
2024
Q1 		$5.95M Hold
500,000
– – 0.31% 123
2023
Q4 		$3.93M Hold
500,000
– – 0.21% 145
2023
Q3 		$5.22M Sell
500,000
-30,582
-6% -$337K 0.29% 127
2023
Q2 		$5.83M Sell
530,582
-147,718
-22% -$1.54M 0.33% 124
2023
Q1 		$7.99M Sell
678,300
-432,200
-39% -$2.81M 0.49% 90
2022
Q4 		$3.92M Sell
1,110,500
-5,500
-0.5% -$21.1K 0.25% 140
2022
Q3 		$5M Sell
1,116,000
-15,500
-1% -$79.6K 0.37% 111
2022
Q2 		$5.87M Sell
1,131,500
-13,000
-1% -$72.1K 0.41% 111
2022
Q1 		$6.33M Hold
1,144,500
– – 0.39% 115
2021
Q4 		$7.25M Sell
1,144,500
-47,810
-4% -$331K 0.42% 114
2021
Q3 		$7.93M Sell
1,192,310
-90,980
-7% -$559K 0.48% 94
2021
Q2 		$9.18M Sell
1,283,290
-61,840
-5% -$444K 0.53% 73
2021
Q1 		$9.86M Sell
1,345,130
-7,400
-0.5% -$50.1K 0.62% 54
2020
Q4 		$8.07M Buy
1,352,530
+900
+0.1% +$5.9K 0.58% 66
2020
Q3 		$9.53M Sell
1,351,630
-35,900
-3% -$247K 0.83% 35
2020
Q2 		$8.87M Sell
1,387,530
-4,300
-0.3% -$24.9K 0.79% 40
2020
Q1 		$7.25M Sell
1,391,830
-56,600
-4% -$401K 0.77% 45
2019
Q4 		$13.2M Sell
1,448,430
-16,900
-1% -$107K 0.97% 23
2019
Q3 		$6.65M Buy
1,465,330
+40,962
+3% +$160K 0.51% 90
2019
Q2 		$5.57M Buy
1,424,368
+60,901
+4% +$245K 0.41% 111
2019
Q1 		$4.79M Buy
1,363,467
+7,603
+0.6% +$25.3K 0.35% 124
2018
Q4 		$3.19M Sell
1,355,864
-2,787
-0.2% -$9.32K 0.26% 136
2018
Q3 		$5.71M Sell
1,358,651
-42,908
-3% -$197K 0.38% 117
2018
Q2 		$6.31M Sell
1,401,559
-6,000
-0.4% -$27.2K 0.42% 109
2018
Q1 		$5.84M Buy
1,407,559
+9,999
+0.7% +$39K 0.39% 114
2017
Q4 		$5.1M Sell
1,397,560
-11,880
-0.8% -$45.1K 0.33% 123
2017
Q3 		$5.36M Sell
1,409,440
-259,999
-16% -$952K 0.35% 120
2017
Q2 		$6.09M Hold
1,669,439
– – 0.39% 118
2017
Q1 		$5.26M Sell
1,669,439
-22,545
-1% -$74.9K 0.32% 133
2016
Q4 		$6.6M Buy
1,691,984
+118,652
+8% +$500K 0.36% 121
2016
Q3 		$7.88M Sell
1,573,332
-10,180
-0.6% -$51.9K 0.45% 98
2016
Q2 		$8.06M Sell
1,583,512
-194,950
-11% -$852K 0.45% 92
2016
Q1 		$6.58M Sell
1,778,462
-11,485
-0.6% -$43.1K 0.35% 110
2015
Q4 		$6.69M Sell
1,789,947
-47,593
-3% -$191K 0.27% 117
2015
Q3 		$7.43M Buy
1,837,540
+13,513
+0.7% +$52.1K 0.27% 116
2015
Q2 		$6.95M Buy
1,824,027
+38,600
+2% +$141K 0.19% 139
2015
Q1 		$6.89M Buy
1,785,427
+126,955
+8% +$537K 0.17% 140
2014
Q4 		$7.21M Sell
1,658,472
-100,600
-6% -$429K 0.14% 158
2014
Q3 		$6.72M Hold
1,759,072
– – 0.13% 170
2014
Q2 		$8.09M Sell
1,759,072
-52,460
-3% -$225K 0.14% 161
2014
Q1 		$8.84M Buy
1,811,532
+25,280
+1% +$90K 0.16% 162
2013
Q4 		$5.8M Buy
1,786,252
+148,220
+9% +$514K 0.1% 188
2013
Q3 		$5.9M Sell
1,638,032
-88,528
-5% -$224K 0.11% 177
2013
Q2 		$3.11M Buy
+1,726,560
New +$6.06M 0.06% 217

Other funds holding PESI

BlackRock
BlackRock New York $5.72T AUM 30.48% 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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
PCM
Potomac Capital Management New York $115M AUM
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Heartland Advisors's PESI Position: Q1 2026 in Review

Heartland Advisors held its Perma-Fix Environmental Services (PESI) position steady in Q1 2026 at 400,000 shares worth $4.28M. The position accounts for 0.22% of the portfolio, ranked #171.

Heartland Advisors first reported a position in PESI in Q2 2013 and has held it in 52 quarters since. The position peaked at $13.2M in Q4 2019. 85 funds tracked by Wall St. Rank hold PESI as of Q1 2026.

  • Heartland Advisors held 400,000 shares of Perma-Fix Environmental Services worth $4.28M as of Q1 2026.
  • Heartland Advisors left its Perma-Fix Environmental Services share count unchanged in Q1 2026.
  • Perma-Fix Environmental Services made up 0.22% of Heartland Advisors's portfolio in Q1 2026, its #171 holding.
  • Heartland Advisors first reported a position in Perma-Fix Environmental Services in Q2 2013 and has held it in 52 quarters since.
  • Heartland Advisors's Perma-Fix Environmental Services position peaked at $13.2M in Q4 2019.
  • 85 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q1 2026.

Based on Heartland Advisors's 13F filing for Q1 2026, filed 6 May 2026.