Plug Power Inc (PLUG) · Insider trading
What Plug Power's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$87,282
1 insider, 1 trade
Sold, 12 months
$861,678
2 insiders, 100% under a plan
Net, 12 months
−$774,396
bought less sold
Latest filing
2026-10-02
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Middleton Paul BSee Remarks | $921,500 | – | 2 | 2025-06-09 | 2,558,064 |
| Haycraft BenjaminCSO & GM EMEA | – | $755,624 | 8 | 2026-09-18 | 101,249 |
| Helmer Maureen ODirector | – | $161,500 | 1 | 2026-06-08 | 321,565 |
| Crespo Jose LuisSee Remarks | $87,282 | $49,236 | 2 | 2025-12-15 | 307,332 |
| McNamee George CDirector | – | $20,900 | 1 | 2024-11-01 | 684,782 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | Haycraft BenjaminCSO & GM EMEA | Saleplan | 200,000 | 2.14 | $428,000 | 101,249 | Form 4 |
| 2026-09-15 | Haycraft BenjaminCSO & GM EMEA | Saleplan | 18,750 | 2.06 | $38,625 | 301,249 | Form 4 |
| 2026-09-11 | Haycraft BenjaminCSO & GM EMEA | Saleplan | 13,810 | 2.14 | $29,553 | 319,999 | Form 4 |
| 2026-06-08 | Helmer Maureen ODirector | Saleplan | 50,000 | 3.23 | $161,500 | 321,565 | Form 4 |
| 2026-01-12 | Haycraft BenjaminCSO & GM EMEA | Saleplan | 40,000 | 2.17 | $86,800 | 333,809 | Form 4 |
| 2025-12-15 | Crespo Jose LuisSee Remarks | Buyplan | 37,300 | 2.34 | $87,282 | 307,332 | Form 4 |
| 2025-12-10 | Haycraft BenjaminCSO & GM EMEA | Saleplan | 40,000 | 2.20 | $88,000 | 373,809 | Form 4 |
| 2025-11-10 | Haycraft BenjaminCSO & EVP of EMEA Region | Saleplan | 10,000 | 2.92 | $29,200 | 467,583 | Form 4 |
| 2025-10-10 | Haycraft BenjaminCSO & GM EMEA | Saleplan | 10,000 | 3.80 | $38,000 | 457,583 | Form 4 |
| 2025-09-16 | Haycraft BenjaminCSO & GM of EMEA Region | Sale | 10,972 | 1.59 | $17,445 | 477,583 | Form 4 |
| 2025-06-11 | Crespo Jose LuisChief Revenue Officer | Saleplan | 37,300 | 1.32 | $49,236 | 270,032 | Form 4 |
| 2025-06-09 | Middleton Paul BSee Remarks | Buy | 650,000 | 1.03 | $669,500 | 2,558,064 | Form 4 |
| 2025-05-16 | Middleton Paul BCFO & Executive VP | Buy | 350,000 | 0.72 | $252,000 | 1,908,064 | Form 4 |
| 2024-11-01 | McNamee George CDirector | Saleplan | 10,000 | 2.09 | $20,900 | 684,782 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
78 × grant or award9 × shares withheld for tax
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-10-01 | Bonney Mark JDirector | Grant or award A | +12,242 | 1.94 | 283,772 | Form 4 |
| 2026-10-01 | Joggerst PatrickDirector | Grant or award A | +11,598 | 1.94 | 264,782 | Form 4 |
| 2026-10-01 | Kenausis GregoryDirector | Grant or award A | +5,928 | 1.94 | 520,340 | Form 4 |
| 2026-10-01 | Angle Colin MDirector | Grant or award A | +6,121 | 1.94 | 159,223 | Form 4 |
| 2026-07-01 | Angle Colin MDirector | Grant or award A | +3,558 | 2.71 | 153,102 | Form 4 |
| 2026-07-01 | Bonney Mark JDirector | Grant or award A | +8,764 | 2.71 | 271,530 | Form 4 |
| 2026-07-01 | Joggerst PatrickDirector | Grant or award A | +7,644 | 2.71 | 253,184 | Form 4 |
| 2026-07-01 | Kenausis GregoryDirector | Grant or award A | +3,980 | 2.71 | 514,412 | Form 4 |
| 2026-06-25 | Middleton Paul BCFO & Executive VP | Grant or award A | +389,105 | – | 2,947,169 | Form 4 |
| 2026-06-11 | Angle Colin MDirector | Grant or award A | +39,753 | – | 149,544 | Form 4 |
| 2026-06-11 | Bonney Mark JDirector | Grant or award A | +39,753 | – | 262,766 | Form 4 |
| 2026-06-11 | Helmer Maureen ODirector | Grant or award A | +39,753 | – | 361,318 | Form 4 |
| 2026-06-11 | Joggerst PatrickDirector | Grant or award A | +39,753 | – | 245,540 | Form 4 |
| 2026-06-11 | Kenausis GregoryDirector | Grant or award A | +39,753 | – | 510,432 | Form 4 |
| 2026-06-11 | McNamee George CDirector | Grant or award A | +39,753 | – | 873,282 | Form 4 |
| 2026-06-11 | Willis Gary KDirector | Grant or award A | +39,753 | – | 730,107 | Form 4 |
| 2026-04-01 | Marsh AndrewDirector | Grant or award A | +3,688 | 2.26 | 853,378 | Form 4 |
| 2026-04-01 | Joggerst PatrickDirector | Grant or award A | +8,850 | 2.26 | 205,787 | Form 4 |
| 2026-04-01 | Bonney Mark JDirector | Grant or award A | +10,509 | 2.26 | 223,013 | Form 4 |
| 2026-04-01 | Angle Colin MDirector | Grant or award A | +3,872 | 2.26 | 109,791 | Form 4 |
| 2026-04-01 | Mahtani KavitaDirector | Grant or award A | +9,956 | 2.26 | 239,847 | Form 4 |
| 2026-04-01 | Kenausis GregoryDirector | Grant or award A | +8,712 | 2.26 | 470,679 | Form 4 |
| 2026-01-02 | Willis Gary KDirector | Grant or award A | +16,497 | 1.97 | 690,354 | Form 4 |
| 2026-01-02 | Angle Colin MDirector | Grant or award A | +5,076 | 1.97 | 105,919 | Form 4 |
| 2026-01-02 | Bonney Mark JDirector | Grant or award A | +12,056 | 1.97 | 212,504 | Form 4 |
| 2026-01-02 | Helmer Maureen ODirector | Grant or award A | +13,959 | 1.97 | 371,565 | Form 4 |
| 2026-01-02 | Joggerst PatrickDirector | Grant or award A | +10,152 | 1.97 | 196,937 | Form 4 |
| 2026-01-02 | Kenausis GregoryDirector | Grant or award A | +9,994 | 1.97 | 461,967 | Form 4 |
| 2026-01-02 | Mahtani KavitaDirector | Grant or award A | +11,421 | 1.97 | 229,891 | Form 4 |
| 2026-01-02 | McNamee George CDirector | Grant or award A | +13,008 | 1.97 | 833,529 | Form 4 |
| 2025-11-28 | Marsh AndrewDirector, CEO | Grant or award A | +12,203 | 2.01 | 930,546 | Form 4 |
| 2025-11-07 | Haycraft BenjaminCSO & GM EMEA | Shares withheld for tax F | −35,957 | 2.51 | 413,809 | Form 4 |
| 2025-10-31 | Marsh AndrewDirector, CEO | Grant or award A | +9,415 | 2.69 | 918,343 | Form 4 |
| 2025-10-17 | Haycraft BenjaminCSO & GM EMEA | Shares withheld for tax F | −7,817 | 3.48 | 449,766 | Form 4 |
| 2025-10-03 | Marsh AndrewDirector, CEO | Grant or award A | +18,324 | 3.81 | 908,928 | Form 4 |
| 2025-10-01 | McNamee George CDirector | Grant or award A | +10,998 | 2.33 | 820,521 | Form 4 |
| 2025-10-01 | Willis Gary KDirector | Grant or award A | +13,948 | 2.33 | 673,857 | Form 4 |
| 2025-10-01 | Angle Colin MDirector | Grant or award A | +4,292 | 2.33 | 100,843 | Form 4 |
| 2025-10-01 | Bonney Mark JDirector | Grant or award A | +10,193 | 2.33 | 200,448 | Form 4 |
| 2025-10-01 | Helmer Maureen ODirector | Grant or award A | +11,803 | 2.33 | 357,606 | Form 4 |
| 2025-10-01 | Joggerst PatrickDirector | Grant or award A | +8,584 | 2.33 | 186,785 | Form 4 |
| 2025-10-01 | Kenausis GregoryDirector | Grant or award A | +8,450 | 2.33 | 451,973 | Form 4 |
| 2025-10-01 | Mahtani KavitaDirector | Grant or award A | +9,657 | 2.33 | 218,470 | Form 4 |
| 2025-08-29 | Marsh AndrewDirector, President and CEO | Grant or award A | +18,471 | 1.67 | 890,604 | Form 4 |
| 2025-08-01 | Marsh AndrewDirector, President and CEO | Grant or award A | +19,968 | 1.54 | 872,133 | Form 4 |
| 2025-07-04 | Marsh AndrewDirector, President and CEO | Grant or award A | +38,156 | 1.01 | 852,165 | Form 4 |
| 2025-07-03 | Willis Gary KDirector | Grant or award A | +76,531 | – | 659,909 | Form 4 |
| 2025-07-03 | Angle Colin MDirector | Grant or award A | +76,531 | – | 96,551 | Form 4 |
| 2025-07-03 | Bonney Mark JDirector | Grant or award A | +76,531 | – | 190,255 | Form 4 |
| 2025-07-03 | Helmer Maureen ODirector | Grant or award A | +76,531 | – | 345,803 | Form 4 |
| 2025-07-03 | Joggerst PatrickDirector | Grant or award A | +76,531 | – | 178,201 | Form 4 |
| 2025-07-03 | Kenausis GregoryDirector | Grant or award A | +76,531 | – | 443,523 | Form 4 |
| 2025-07-03 | Mahtani KavitaDirector | Grant or award A | +76,531 | – | 208,813 | Form 4 |
| 2025-07-03 | McNamee George CDirector | Grant or award A | +76,531 | – | 809,523 | Form 4 |
| 2025-07-01 | Kenausis GregoryDirector | Grant or award A | +13,213 | 1.49 | 366,992 | Form 4 |
| 2025-07-01 | Angle Colin MDirector | Grant or award A | +6,711 | 1.49 | 20,020 | Form 4 |
| 2025-07-01 | Bonney Mark JDirector | Grant or award A | +15,940 | 1.49 | 113,724 | Form 4 |
| 2025-07-01 | Helmer Maureen ODirector | Grant or award A | +18,456 | 1.49 | 269,272 | Form 4 |
| 2025-07-01 | Joggerst PatrickDirector | Grant or award A | +13,423 | 1.49 | 101,670 | Form 4 |
| 2025-07-01 | Mahtani KavitaDirector | Grant or award A | +15,101 | 1.49 | 132,282 | Form 4 |
| 2025-07-01 | Willis Gary KDirector | Grant or award A | +21,812 | 1.49 | 583,378 | Form 4 |
| 2025-07-01 | McNamee George CDirector | Grant or award A | +17,198 | 1.49 | 732,992 | Form 4 |
| 2025-05-30 | Marsh AndrewDirector, President and CEO | Grant or award A | +36,448 | 0.84 | 814,009 | Form 4 |
| 2025-05-05 | Middleton Paul BCFO & Executive VP | Shares withheld for tax F | −17,081 | 0.84 | 1,558,064 | Form 4 |
| 2025-05-05 | Crespo Jose LuisChief Revenue Officer | Shares withheld for tax F | −16,689 | 0.84 | 307,332 | Form 4 |
| 2025-05-05 | Conway Gerard L JrGen. Coun, Corp Sec., Exec. VP | Shares withheld for tax F | −16,188 | 0.84 | 259,482 | Form 4 |
| 2025-04-06 | Hull Martin DanielCorporate Controller and CAO | Shares withheld for tax F | −18,650 | 1.22 | 179,873 | Form 4 |
| 2025-04-01 | McNamee George CDirector | Grant or award A | +18,981 | 1.35 | 715,794 | Form 4 |
| 2025-04-01 | Kenausis GregoryDirector | Grant or award A | +14,584 | 1.35 | 353,779 | Form 4 |
| 2025-04-01 | Willis Gary KDirector | Grant or award A | +24,074 | 1.35 | 561,566 | Form 4 |
| 2025-04-01 | Helmer Maureen ODirector | Grant or award A | +20,370 | 1.35 | 250,816 | Form 4 |
| 2025-04-01 | Mahtani KavitaDirector | Grant or award A | +16,667 | 1.35 | 117,181 | Form 4 |
| 2025-04-01 | Bonney Mark JDirector | Grant or award A | +17,593 | 1.35 | 97,784 | Form 4 |
| 2025-04-01 | Joggerst PatrickDirector | Grant or award A | +14,815 | 1.35 | 88,247 | Form 4 |
| 2025-04-01 | Angle Colin MDirector | Grant or award A | +7,407 | 1.35 | 13,309 | Form 4 |
| 2025-01-02 | Angle Colin MDirector | Grant or award A | +4,229 | 2.13 | 5,902 | Form 4 |
| 2025-01-02 | Bonney Mark JDirector | Grant or award A | +11,150 | 2.13 | 80,191 | Form 4 |
| 2025-01-02 | Helmer Maureen ODirector | Grant or award A | +12,911 | 2.13 | 230,446 | Form 4 |
| 2025-01-02 | Joggerst PatrickDirector | Grant or award A | +9,390 | 2.13 | 73,432 | Form 4 |
| 2025-01-02 | Kenausis GregoryDirector | Grant or award A | +9,243 | 2.13 | 339,195 | Form 4 |
| 2025-01-02 | Mahtani KavitaDirector | Grant or award A | +10,563 | 2.13 | 100,514 | Form 4 |
| 2025-01-02 | McNamee George CDirector | Grant or award A | +12,031 | 2.13 | 696,813 | Form 4 |
| 2025-01-02 | Willis Gary KDirector | Grant or award A | +15,258 | 2.13 | 537,492 | Form 4 |
| 2024-11-19 | Middleton Paul BCFO & Executive VP | Grant or award A | +1,302,084 | – | 1,575,145 | Form 4 |
| 2024-11-06 | Conway Gerard L JrGen. Coun, Corp Sec., Exec. VP | Shares withheld for tax F | −14,610 | 2.52 | 275,670 | Form 4 |
| 2024-11-06 | Crespo Jose LuisGM, MATL Handling, Key Accts | Shares withheld for tax F | −15,241 | 2.52 | 324,021 | Form 4 |
| 2024-11-06 | Middleton Paul BCFO & Executive VP | Shares withheld for tax F | −17,082 | 2.52 | 273,061 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.