HELMER MAUREEN O has filed 13 insider transactions across 1 company since January 2024.
Most recent transaction: a grant/award of 13959 shares of PLUG POWER INC ($PLUG) on January 02, 2026.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 2, 2026 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 13959 | $1.97 | 371,565.0000 | 1,146,691,189 | 3.90% | 0.00% |
| Oct. 1, 2025 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 11803 | $2.33 | 357,606.0000 | 1,158,516,229 | 3.41% | 0.00% |
| July 3, 2025 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 76531 | $0.00 | 345,803.0000 | 1,126,627,283 | 28.42% | 0.01% |
| July 3, 2025 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Stock Option (Right to Buy) | 76531 | $0.00 | 76,531.0000 | 1,126,627,283 | 9999.99% | 0.01% |
| July 1, 2025 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 18456 | $1.49 | 269,272.0000 | 1,126,627,283 | 7.36% | 0.00% |
| April 1, 2025 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 20370 | $1.35 | 250,816.0000 | 945,767,987 | 8.84% | 0.00% |
| Jan. 2, 2025 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 12911 | $2.13 | 230,446.0000 | 785,024,373 | 5.94% | 0.00% |
| Oct. 1, 2024 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 12168 | $2.26 | 217,535.0000 | 858,442,951 | 5.93% | 0.00% |
| July 1, 2024 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 11803 | $2.33 | 205,367.0000 | 736,848,684 | 6.10% | 0.00% |
| June 5, 2024 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 37375 | $0.00 | 193,564.0000 | 641,256,134 | 23.93% | 0.01% |
| June 5, 2024 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Stock Option (Right to Buy) | 37375 | $0.00 | 37,375.0000 | 641,256,134 | 9999.99% | 0.01% |
| April 1, 2024 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 7994 | $3.44 | 156,189.0000 | 641,256,134 | 5.39% | 0.00% |
| Jan. 2, 2024 | PLUG POWER INC | $PLUG | HELMER MAUREEN O | Director | A | Common Stock | 3056 | $4.50 | 148,195.0000 | 595,468,419 | 2.11% | 0.00% |