Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Perma-Fix Environmental Services Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Perma-Fix Environmental Services Inc. July 24, 202592.0%
-
Perma-Fix Environmental Services Inc. July 18, 202490.2%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 1, 2026 | Perma-Fix Environmental Services Inc. | Grant or award | +1,038 | $11.74 | $12,184 |
| Jul 1, 2026 | Perma-Fix Environmental Services Inc. | Grant or award | +1,167 | $10.72 | $12,510 |
| Apr 1, 2026 | Perma-Fix Environmental Services Inc. | Grant or award | +1,520 | $8.02 | $12,190 |
| Jan 2, 2026 | Perma-Fix Environmental Services Inc. | Grant or award | +1,325 | $9.44 | $12,508 |
| Oct 1, 2025 | Perma-Fix Environmental Services Inc. | Grant or award | +1,609 | $7.58 | $12,196 |
| Aug 28, 2025 | Perma-Fix Environmental Services Inc. | Option exercise | +2,400 | $4.19 | $10,056 |
| Jul 1, 2025 | Perma-Fix Environmental Services Inc. | Grant or award | +1,586 | $7.89 | $12,514 |
| Apr 1, 2025 | Perma-Fix Environmental Services Inc. | Grant or award | +2,235 | $5.45 | $12,181 |
| Jan 2, 2025 | Perma-Fix Environmental Services Inc. | Grant or award | +1,468 | $8.30 | $12,184 |
| Oct 1, 2024 | Perma-Fix Environmental Services Inc. | Grant or award | +1,324 | $9.20 | $12,181 |
| Sep 9, 2024 | Perma-Fix Environmental Services Inc. | Option exercise | +2,400 | $3.70 | $8,880 |
| Jul 1, 2024 | Perma-Fix Environmental Services Inc. | Grant or award | +1,690 | $7.60 | $12,844 |
| Apr 1, 2024 | Perma-Fix Environmental Services Inc. | Grant or award | +1,367 | $8.92 | $12,194 |
| Jan 2, 2024 | Perma-Fix Environmental Services Inc. | Grant or award | +2,067 | $5.90 | $12,195 |
| Oct 2, 2023 | Perma-Fix Environmental Services Inc. | Grant or award | +1,596 | $7.84 | $12,513 |
Questions about Mark A. Zwecker
What boards is Mark A. Zwecker on?
Mark A. Zwecker sits on the board of Perma-Fix Environmental Services Inc.
How long has Mark A. Zwecker served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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