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

Citadel 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
Q2 		$2.18M Buy
152,626
+83,313
+120% +$929K ﹤0.01% 6366
2026
Q1 		$741K Buy
69,313
+33,184
+92% +$456K ﹤0.01% 8386
2025
Q4 		$455K Sell
36,129
-24,035
-40% -$306K ﹤0.01% 9253
2025
Q3 		$608K Buy
60,164
+29,691
+97% +$328K ﹤0.01% 8644
2025
Q2 		$321K Sell
30,473
-82,430
-73% -$758K ﹤0.01% 9654
2025
Q1 		$821K Buy
112,903
+112,640
+42,829% +$1.01M ﹤0.01% 7385
2024
Q4 		$2.91K Sell
263
-13,293
-98% -$175K ﹤0.01% 14042
2024
Q3 		$166K Buy
13,556
+7,646
+129% +$81.8K ﹤0.01% 10424
2024
Q2 		$59.9K Sell
5,910
-19,513
-77% -$216K ﹤0.01% 11563
2024
Q1 		$302K Sell
25,423
-16,413
-39% -$142K ﹤0.01% 9437
2023
Q4 		$329K Sell
41,836
-1,707
-4% -$14.4K ﹤0.01% 8987
2023
Q3 		$455K Buy
43,543
+31,324
+256% +$345K ﹤0.01% 8258
2023
Q2 		$134K Buy
12,219
+6,276
+106% +$65.4K ﹤0.01% 10496
2023
Q1 		$70K Sell
5,943
-22,938
-79% -$149K ﹤0.01% 11730
2022
Q4 		$102K Buy
+28,881
New +$111K ﹤0.01% 11190
2019
Q2 		– Sell
-19,225
Closed -$67K – 9687
2019
Q1 		$67K Buy
+19,225
New +$63.9K ﹤0.01% 8712
2018
Q1 		– Sell
-20,305
Closed -$74K – 8650
2017
Q4 		$74K Buy
+20,305
New +$77.1K ﹤0.01% 7519
2017
Q2 		– Sell
-13,052
Closed -$41K – 7907
2017
Q1 		$41K Buy
+13,052
New +$43.3K ﹤0.01% 7095
2013
Q4 		– Sell
-3,930
Closed -$14K – 7122
2013
Q3 		$14K Buy
+3,930
New +$9.94K ﹤0.01% 6369

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
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

Citadel Advisors's PESI Position: Q2 2026 in Review

Citadel Advisors increased its Perma-Fix Environmental Services (PESI) stake by 120% in Q2 2026, buying an estimated $929K and bringing the position to 152,626 shares worth $2.18M. The position accounts for ﹤0.01% of the portfolio, ranked #6366.

Citadel Advisors first reported a position in PESI in Q3 2013 and has held it in 19 quarters since. 89 funds tracked by Wall St. Rank hold PESI as of Q2 2026.

  • Citadel Advisors held 152,626 shares of Perma-Fix Environmental Services worth $2.18M as of Q2 2026.
  • Citadel Advisors bought 83,313 Perma-Fix Environmental Services shares in Q2 2026, an estimated $929K.
  • Perma-Fix Environmental Services made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #6366 holding.
  • Citadel Advisors first reported a position in Perma-Fix Environmental Services in Q3 2013 and has held it in 19 quarters since.
  • 89 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.