PESI
Perma-Fix Envir (PESI)
NASDAQ
$17.15+$0.55 (+3.31%)
Price as of Aug 03, 2026 5:41 PM EDT
  • $352.0M
    Market Cap
  • 56.46%
    1-Year Change
  • Waste Management
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
5.52%
1.2M
-27,682 (-2.37%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
4.86%
1.0M
+22,818 (+2.22%)
Dec 31, 2024
VANGUARD GROUP INC
4.57%
968,107
+32,165 (+3.32%)
Dec 31, 2025
MAK CAPITAL ONE LLC
4.33%
918,673
0 (0.00%)
Mar 31, 2026
BLACKROCK INC.
4.02%
853,163
+577,957 (+67.74%)
Jun 30, 2024
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.
3.67%
777,142
0 (0.00%)
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
2.04%
432,701
+9,811 (+2.27%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions91.9M (74.41%)
  • Mutual Funds29.5M (23.93%)
  • Insiders2.0M (1.65%)
  • Other0 (0.00%)

Insider Transactions

  • 1.65% (2.0M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $2.7M
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $16,968.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Grumski Joseph Timothy
Award
Jul 22, 2026
$0.00
10,000
$0.00
10,000
ZWECKER MARK A
Award
Jul 22, 2026
$0.00
10,000
$0.00
10,000
Shelton Larry
Award
Jul 22, 2026
$0.00
10,000
$0.00
10,000
Duggan Kerry C
Award
Jul 22, 2026
$0.00
10,000
$0.00
10,000
Bostick Thomas
Award
Jul 22, 2026
$0.00
10,000
$0.00
10,000
REEDER JOE
Award
Jul 22, 2026
$0.00
10,000
$0.00
10,000
Shelton Larry
Award
Jul 01, 2026
$14,629.39
1,365
$10.72
196,583
Duggan Kerry C
Award
Jul 01, 2026
$8,777.63
819
$10.72
7,640
REEDER JOE
Award
Jul 01, 2026
$15,626.11
1,458
$10.72
239,345
Grumski Joseph Timothy
Award
Apr 01, 2026
$16,876.84
2,105
$8.02
66,133
Duggan Kerry C
Award
Apr 01, 2026
$8,450.44
1,054
$8.02
6,821
Wamp Zach Paul
Award
Apr 01, 2026
$8,771.15
1,094
$8.02
52,624
Shelton Larry
Award
Apr 01, 2026
$14,623.92
1,824
$8.02
195,218
REEDER JOE
Award
Apr 01, 2026
$15,121.00
1,886
$8.02
237,887
Bostick Thomas
Award
Apr 01, 2026
$12,499.28
1,559
$8.02
49,397
Grondin Richard
EVP of Hanford & Int. Waste Op
Exempt
Jan 20, 2026
$0.00
5,000
$0.00
5,000
Grondin Richard
EVP of Hanford & Int. Waste Op
Exempt
Jan 20, 2026
$0.00
6,000
$0.00
12,000
Grondin Richard
EVP of Hanford & Int. Waste Op
Exempt
Jan 20, 2026
$35,025.00
5,000
$7.00
39,592
Grondin Richard
EVP of Hanford & Int. Waste Op
In Kind
Jan 20, 2026
$35,029.05
2,555
$13.71
37,037
Grondin Richard
EVP of Hanford & Int. Waste Op
Exempt
Jan 20, 2026
$23,700.00
6,000
$3.95
43,037
Grondin Richard
EVP of Hanford & Int. Waste Op
In Kind
Jan 20, 2026
$23,704.59
1,729
$13.71
41,308
Grumski Joseph Timothy
Award
Jan 02, 2026
$17,374.20
1,840
$9.44
64,028
Duggan Kerry C
Award
Jan 02, 2026
$8,772.08
929
$9.44
5,767
Shelton Larry
Award
Jan 02, 2026
$14,947.48
1,583
$9.44
193,394
Wamp Zach Paul
Award
Jan 02, 2026
$9,102.57
964
$9.44
51,530
REEDER JOE
Award
Jan 02, 2026
$14,626.43
1,549
$9.44
236,001
Bostick Thomas
Award
Jan 02, 2026
$12,501.87
1,324
$9.44
47,838
REEDER JOE
Gift
Dec 15, 2025
$0.00
11,048
$0.00
237,360
REEDER JOE
Gift
Dec 15, 2025
$0.00
1,090
$0.00
236,270
REEDER JOE
Gift
Dec 15, 2025
$0.00
727
$0.00
235,543