Mark A. Zwecker

Director, Perma-Fix Environmental Services.

Companies

Perma-Fix Environmental ServicesBoard member Jul 31, 2006 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

Perma-Fix Environmental Services PESI247,606 shares²$3.3M at $13.29Jul 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

Jul 1, 2026Granted 1,167 shares at $10.72 of Perma-Fix Environmental Services²
Apr 1, 2026Granted 1,520 shares at $8.02 of Perma-Fix Environmental Services³
Jan 2, 2026Granted 1,325 shares at $9.44 of Perma-Fix Environmental Services⁴
Oct 1, 2025Granted 1,609 shares at $7.58 of Perma-Fix Environmental Services⁵
Aug 28, 2025Exercised options 2,400 shares at $4.19 of Perma-Fix Environmental Services⁶
Jul 1, 2025Granted 1,586 shares at $7.89 of Perma-Fix Environmental Services⁷
Apr 1, 2025Granted 2,235 shares at $5.45 of Perma-Fix Environmental Services⁸
Jan 2, 2025Granted 1,468 shares at $8.30 of Perma-Fix Environmental Services⁹
Oct 1, 2024Granted 1,324 shares at $9.20 of Perma-Fix Environmental Services¹⁰
Sep 9, 2024Exercised options 2,400 shares at $3.70 of Perma-Fix Environmental Services¹¹
Jul 1, 2024Granted 1,690 shares at $7.60 of Perma-Fix Environmental Services¹²
Apr 1, 2024Granted 1,367 shares at $8.92 of Perma-Fix Environmental Services¹³
Jan 2, 2024Granted 2,067 shares at $5.90 of Perma-Fix Environmental Services¹⁴
Oct 2, 2023Granted 1,596 shares at $7.84 of Perma-Fix Environmental Services¹⁵
Jul 3, 2023Granted 1,480 shares at $8.24 of Perma-Fix Environmental Services¹⁶
Apr 25, 2023Exercised options 2,400 shares at $2.79 of Perma-Fix Environmental Services¹⁷
Apr 3, 2023Granted 1,379 shares at $8.84 of Perma-Fix Environmental Services¹⁸
Jan 3, 2023Granted 4,603 shares at $2.65 of Perma-Fix Environmental Services¹⁹
Oct 3, 2022Granted 3,627 shares at $3.36 of Perma-Fix Environmental Services²⁰
Jul 1, 2022Granted 3,131 shares at $3.89 of Perma-Fix Environmental Services²¹
Apr 1, 2022Granted 2,939 shares at $4.15 of Perma-Fix Environmental Services²²
Jan 3, 2022Granted 2,636 shares at $4.75 of Perma-Fix Environmental Services²³
Oct 1, 2021Granted 2,509 shares at $4.99 of Perma-Fix Environmental Services²⁴

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARPerma-Fix Environmental Services, Board member
2
SEC EDGARPerma-Fix Environmental Services shares after the filing of Jul 1, 2026
3
SEC EDGARForm 4 filed Apr 2, 2026
4
SEC EDGARForm 4 filed Jan 5, 2026
5
SEC EDGARForm 4 filed Oct 2, 2025
6
SEC EDGARForm 4 filed Sep 2, 2025
7
SEC EDGARForm 4 filed Jul 2, 2025
8
SEC EDGARForm 4 filed Apr 2, 2025
9
SEC EDGARForm 4 filed Jan 3, 2025
10
SEC EDGARForm 4 filed Oct 2, 2024
11
SEC EDGARForm 4 filed Sep 10, 2024
12
SEC EDGARForm 4 filed Jul 2, 2024
13
SEC EDGARForm 4 filed Apr 2, 2024
14
SEC EDGARForm 4 filed Jan 3, 2024
15
SEC EDGARForm 4 filed Oct 3, 2023
16
SEC EDGARForm 4 filed Jul 5, 2023
17
SEC EDGARForm 4 filed Apr 26, 2023
18
SEC EDGARForm 4 filed Apr 4, 2023
19
SEC EDGARForm 4 filed Jan 4, 2023
20
SEC EDGARForm 4 filed Oct 4, 2022
21
SEC EDGARForm 4 filed Jul 1, 2022
22
SEC EDGARForm 4 filed Apr 1, 2022
23
SEC EDGARForm 4 filed Jan 4, 2022
24
SEC EDGARForm 4 filed Oct 4, 2021