PESI
Perma-Fix Envir (PESI)
NASDAQ
$15.60+$0.04 (+0.22%)
Price as of Oct 02, 2026 7:30 PM EDT
  • $330.2M
    Market Cap
  • 54.83%
    1-Year Change
  • Waste Management
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
5.91%
1.3M
+82,453 (+6.58%)
Jun 30, 2026
MAK CAPITAL ONE LLC
4.87%
1.0M
+114,285 (+11.06%)
Jun 30, 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
BLACKROCK INC.
4.02%
853,163
+577,957 (+67.74%)
Jun 30, 2024
VANGUARD CAPITAL MANAGEMENT LLC
3.83%
811,743
+52,308 (+6.44%)
Jun 30, 2026
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.
3.67%
777,142
0 (0.00%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions101.3M (73.43%)
  • Mutual Funds33.8M (24.50%)
  • Insiders2.8M (2.06%)
  • Other0 (0.00%)

Insider Transactions

  • 2.06% (2.8M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Bostick Thomas
Award
Oct 01, 2026
$13,005.15
1,108
$11.74
51,718
Shelton Larry
Award
Oct 01, 2026
$14,624.92
1,246
$11.74
200,229
Wamp Zach Paul
Award
Oct 01, 2026
$9,096.56
775
$11.74
54,248
Grumski Joseph Timothy
Award
Oct 01, 2026
$16,878.53
1,438
$11.74
69,099
Duggan Kerry C
Award
Oct 01, 2026
$8,779.65
748
$11.74
8,388
ZWECKER MARK A
Award
Oct 01, 2026
$12,183.52
1,038
$11.74
248,644
Grumski Joseph Timothy
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
Duggan Kerry C
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
Bostick Thomas
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 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
Bostick Thomas
Award
Apr 01, 2026
$12,499.28
1,559
$8.02
49,397
Shelton Larry
Award
Apr 01, 2026
$14,623.92
1,824
$8.02
195,218
Wamp Zach Paul
Award
Apr 01, 2026
$8,771.15
1,094
$8.02
52,624
REEDER JOE
Award
Apr 01, 2026
$15,121.00
1,886
$8.02
237,887
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
Duggan Kerry C
Award
Jan 02, 2026
$8,772.08
929
$9.44
5,767
Grumski Joseph Timothy
Award
Jan 02, 2026
$17,374.20
1,840
$9.44
64,028
REEDER JOE
Award
Jan 02, 2026
$14,626.43
1,549
$9.44
236,001