Edward R. Hirshfield serves as Executive at MECHANICAL TECHNOLOGY INC, where they oversee executive responsibilities. Since joining the company, Edward R. Hirshfield has executed 21 insider transactions totaling $77.4K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 12, 2025 involved selling 2,000 shares valued at $19.5K.
Edward R. Hirshfield currently holds 9,007 shares of MECHANICAL TECHNOLOGY INC (MKTY), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Edward R. Hirshfield has been a net seller of MKTY stock. They have purchased $0 and sold $77.4K worth of shares.
Edward R. Hirshfield's most recent insider trade was on Dec 12, 2025, when they sold 2,000 shares at $9.76 per share.
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| $9.90 |
| Discretionary |
| Dec 10, 2025 | SLNHP | $19.4K | Sale | 2,000 | $9.70 | Discretionary |
| Dec 1, 2025 | SLNH | $0 | Award | 685,074 | $N/A | Discretionary |
| Nov 28, 2025 | SLNHP | $8.8K | Sale | 1,000 | $8.75 | Discretionary |
| Nov 24, 2025 | SLNHP | $8.0K | Sale | 1,000 | $8.00 | Discretionary |
| Nov 21, 2025 | SLNHP | $745 | Sale | 100 | $7.45 | Discretionary |
| Nov 21, 2025 | SLNHP | $13.6K | Sale | 1,900 | $7.18 | Discretionary |
| Sep 1, 2025 | SLNH | $0 | Award | 33,226 | $N/A | Discretionary |
| Sep 1, 2025 | SLNH | $0 | Award | 66,453 | $N/A | Discretionary |
| Sep 1, 2024 | SLNH | $0 | Award | 12,132 | $N/A | Discretionary |
| Sep 1, 2024 | SLNH | $0 | Award | 24,265 | $N/A | Discretionary |
| Sep 1, 2024 | SLNH | $0 | Award | 954 | $N/A | Discretionary |
| Sep 1, 2024 | SLNH | $0 | Award | 1,909 | $N/A | Discretionary |
| Jun 1, 2024 | SLNH | $0 | Award | 3,409 | $N/A | Discretionary |
| Jun 1, 2024 | SLNH | $0 | Award | 1,705 | $N/A | Discretionary |
| Apr 15, 2024 | SLNH | $0 | Award | 26,489 | $N/A | Discretionary |
| Apr 15, 2024 | SLNH | $0 | Award | 23,530 | $N/A | Discretionary |
| Apr 15, 2024 | SLNH | $0 | Award | 11,764 | $N/A | Discretionary |
| Jan 14, 2022 | SLNH | $0 | Award | 20,500 | $N/A | Discretionary |
| Mar 25, 2021 | MKTY | $0 | Award | 7,500 | $N/A | Discretionary |