PLUG POWER INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Crespo Jose Luis | See Remarks | Purchase | 37,300 | $2.34 | $87,282 | 307,332 | Dec 15, 2025 |
| Marsh Andrew | CEO | Award / Grant | 12,203 | $2.01 | $24,528 | 930,546 | Nov 28, 2025 |
| Haycraft Benjamin | CSO & EVP of EMEA Region | Sale | 10,000 | $2.92 | $29,200 | 467,583 | Nov 10, 2025 |
| Haycraft Benjamin | CSO & GM EMEA | Tax Withholding | 7,817 | $3.48 | $27,203 | 449,766 | Nov 7, 2025 |
| Marsh Andrew | CEO | Award / Grant | 9,415 | $2.69 | $25,326 | 918,343 | Oct 31, 2025 |
| Marsh Andrew | CEO | Award / Grant | 18,324 | $3.81 | $69,814 | 908,928 | Oct 3, 2025 |
| Mahtani Kavita | — | Award / Grant | 9,657 | $2.33 | $22,501 | 218,470 | Oct 1, 2025 |
| Kenausis Gregory | — | Award / Grant | 8,450 | $2.33 | $19,689 | 451,973 | Oct 1, 2025 |
| Joggerst Patrick | — | Award / Grant | 8,584 | $2.33 | $20,001 | 186,785 | Oct 1, 2025 |
| HELMER MAUREEN O | — | Award / Grant | 11,803 | $2.33 | $27,501 | 357,606 | Oct 1, 2025 |
| BONNEY MARK J | — | Award / Grant | 10,193 | $2.33 | $23,750 | 200,448 | Oct 1, 2025 |
| Angle Colin M | — | Award / Grant | 4,292 | $2.33 | $10,000 | 100,843 | Oct 1, 2025 |
| WILLIS GARY K | — | Award / Grant | 13,948 | $2.33 | $32,499 | 673,857 | Oct 1, 2025 |
| MCNAMEE GEORGE C | — | Award / Grant | 10,998 | $2.33 | $25,625 | 820,521 | Oct 1, 2025 |
| Haycraft Benjamin | CSO & GM of EMEA Region | Sale | 10,972 | $1.59 | $17,445 | 477,583 | Sep 16, 2025 |
| Marsh Andrew | President and CEO | Award / Grant | 19,968 | $1.54 | $30,751 | 872,133 | Aug 29, 2025 |
| Marsh Andrew | President and CEO | Award / Grant | 38,156 | $1.01 | $38,538 | 852,165 | Jul 4, 2025 |
| MCNAMEE GEORGE C | — | Award / Grant | 76,531 | — | — | 809,523 | Jul 3, 2025 |
| Mahtani Kavita | — | Award / Grant | 76,531 | — | — | 208,813 | Jul 3, 2025 |
| Kenausis Gregory | — | Award / Grant | 76,531 | — | — | 443,523 | Jul 3, 2025 |
| Joggerst Patrick | — | Award / Grant | 76,531 | — | — | 178,201 | Jul 3, 2025 |
| HELMER MAUREEN O | — | Award / Grant | 76,531 | — | — | 345,803 | Jul 3, 2025 |
| BONNEY MARK J | — | Award / Grant | 76,531 | — | — | 190,255 | Jul 3, 2025 |
| Angle Colin M | — | Award / Grant | 76,531 | — | — | 96,551 | Jul 3, 2025 |
| WILLIS GARY K | — | Award / Grant | 76,531 | — | — | 659,909 | Jul 3, 2025 |
| MCNAMEE GEORGE C | — | Award / Grant | 17,198 | $1.49 | $25,625 | 732,992 | Jul 1, 2025 |
| WILLIS GARY K | — | Award / Grant | 21,812 | $1.49 | $32,500 | 583,378 | Jul 1, 2025 |
| Mahtani Kavita | — | Award / Grant | 15,101 | $1.49 | $22,500 | 132,282 | Jul 1, 2025 |
| Joggerst Patrick | — | Award / Grant | 13,423 | $1.49 | $20,000 | 101,670 | Jul 1, 2025 |
| HELMER MAUREEN O | — | Award / Grant | 18,456 | $1.49 | $27,499 | 269,272 | Jul 1, 2025 |
| BONNEY MARK J | — | Award / Grant | 15,940 | $1.49 | $23,751 | 113,724 | Jul 1, 2025 |
| Angle Colin M | — | Award / Grant | 6,711 | $1.49 | $9,999 | 20,020 | Jul 1, 2025 |
| Kenausis Gregory | — | Award / Grant | 13,213 | $1.49 | $19,687 | 366,992 | Jul 1, 2025 |
| Crespo Jose Luis | Chief Revenue Officer | Sale | 37,300 | $1.32 | $49,236 | 270,032 | Jun 11, 2025 |
| MIDDLETON PAUL B | See Remarks | Purchase | 650,000 | $1.03 | $669,500 | 2,558,064 | Jun 9, 2025 |
| Marsh Andrew | President and CEO | Award / Grant | 36,448 | $0.84 | $30,616 | 814,009 | May 30, 2025 |
| MIDDLETON PAUL B | CFO & Executive VP | Purchase | 350,000 | $0.72 | $252,000 | 1,908,064 | May 16, 2025 |
| Conway Gerard L JR | Gen. Coun, Corp Sec., Exec. VP | Tax Withholding | 16,188 | $0.84 | $13,598 | 259,482 | May 5, 2025 |
| Crespo Jose Luis | Chief Revenue Officer | Tax Withholding | 16,689 | $0.84 | $14,019 | 307,332 | May 5, 2025 |
| MIDDLETON PAUL B | CFO & Executive VP | Tax Withholding | 17,081 | $0.84 | $14,348 | 1,558,064 | May 5, 2025 |
| Hull Martin Daniel | Corporate Controller and CAO | Tax Withholding | 18,650 | $1.22 | $22,753 | 179,873 | Apr 6, 2025 |
| Angle Colin M | — | Award / Grant | 7,407 | $1.35 | $9,999 | 13,309 | Apr 1, 2025 |
| Joggerst Patrick | — | Award / Grant | 14,815 | $1.35 | $20,000 | 88,247 | Apr 1, 2025 |
| BONNEY MARK J | — | Award / Grant | 17,593 | $1.35 | $23,751 | 97,784 | Apr 1, 2025 |
| Mahtani Kavita | — | Award / Grant | 16,667 | $1.35 | $22,500 | 117,181 | Apr 1, 2025 |
| HELMER MAUREEN O | — | Award / Grant | 20,370 | $1.35 | $27,500 | 250,816 | Apr 1, 2025 |
| WILLIS GARY K | — | Award / Grant | 24,074 | $1.35 | $32,500 | 561,566 | Apr 1, 2025 |
| Kenausis Gregory | — | Award / Grant | 14,584 | $1.35 | $19,688 | 353,779 | Apr 1, 2025 |
| MCNAMEE GEORGE C | — | Award / Grant | 18,981 | $1.35 | $25,624 | 715,794 | Apr 1, 2025 |
| WILLIS GARY K | — | Award / Grant | 15,258 | $2.13 | $32,500 | 537,492 | Jan 2, 2025 |