Plug Power Inc (PLUG) Insider Ownership

Historic Insider Ownership Trends

Plug Power's three largest insider shareholders as of April 28, 2026 are Paul B Middleton (Cfo Executive Vp, 2.56Mn shares), Andrew Marsh (Ceo, 853.38K shares), George C Mcnamee (Director, 833.53K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Paul B Middleton Cfo Executive Vp 2,558,064 0 09 Jun, 2025
Andrew Marsh Ceo 853,378 0 10 Apr, 2026
George C Mcnamee - 833,529 0 06 Jan, 2026
Gary K Willis - 690,354 0 06 Jan, 2026
Gary K Willis - 690,354 0 06 Jan, 2026
Keith Schmid Gm New Mkts Pres New Prd Dv 474,776 0 03 Oct, 2023
Keith Schmid Gm New Mkts Pres New Prd Dv 474,776 0 03 Oct, 2023
Gregory Kenausis - 470,679 0 10 Apr, 2026
Maureen O Helmer - 371,565 0 06 Jan, 2026
Benjamin Haycraft Cso Gm Emea 333,809 0 14 Jan, 2026
Jose Luis Crespo Chief Revenue Officer 307,332 0 17 Dec, 2025
Dirk Ole Hoefelmann Gm, Electrolyzers Exec Vp 280,064 0 13 Apr, 2023
Gerard L Jr Conway Gen. Coun, Corp Sec., Exec. Vp 259,482 0 07 May, 2025
Kavita Mahtani - 239,847 0 10 Apr, 2026
Johannes Minho Roth - 234,633 0 15 Jul, 2022
Johannes Minho Roth - 234,633 0 15 Jul, 2022
Mark J Bonney - 223,013 0 10 Apr, 2026
Patrick Joggerst - 196,937 0 06 Jan, 2026
Martin Daniel Hull Corporate Controller And Cao 179,873 0 07 May, 2025
Sanjay K Shrestha Cso Gm, Energy Solutions 160,270 0 03 Oct, 2023
Sanjay K Shrestha Cso Gm, Energy Solutions 160,270 0 03 Oct, 2023
Lucas P Schneider - 135,302 0 05 Apr, 2023
Lucas P Schneider - 135,302 0 05 Apr, 2023
Colin M Angle - 109,791 0 10 Apr, 2026
Jonathan M Silver - 75,715 0 06 Jul, 2023
Jonathan M Silver - 75,715 0 06 Jul, 2023
Jean A Bua - 22,669 0 06 Jul, 2023
Kim Harriman - 6,471 0 15 Jul, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Gregory Kenausis Common Stock A 8,712 $2.26 470,679 D A
01 Apr, 2026 Kavita Mahtani Common Stock A 9,956 $2.26 239,847 D A
01 Apr, 2026 Mark J Bonney Common Stock A 10,509 $2.26 223,013 D A
01 Apr, 2026 Colin M Angle Common Stock A 3,872 $2.26 109,791 D A
01 Apr, 2026 Andrew Marsh Common Stock A 3,688 $2.26 853,378 D A
12 Jan, 2026 Benjamin Haycraft Common Stock D 40,000 $2.17 333,809 D S
02 Jan, 2026 Mark J Bonney Common Stock A 12,056 $1.97 212,504 D A
02 Jan, 2026 Colin M Angle Common Stock A 5,076 $1.97 105,919 D A
02 Jan, 2026 Patrick Joggerst Common Stock A 10,152 $1.97 196,937 D A
02 Jan, 2026 Gary K Willis Common Stock A 16,497 $1.97 690,354 D A
02 Jan, 2026 Maureen O Helmer Common Stock A 13,959 $1.97 371,565 D A
02 Jan, 2026 Gregory Kenausis Common Stock A 9,994 $1.97 461,967 D A
02 Jan, 2026 George C Mcnamee Common Stock A 13,008 $1.97 833,529 D A
02 Jan, 2026 Gary K Willis Common Stock A 16,497 $1.97 690,354 D A
02 Jan, 2026 Kavita Mahtani Common Stock A 11,421 $1.97 229,891 D A
15 Dec, 2025 Jose Luis Crespo Common Stock A 37,300 $2.34 307,332 D P
10 Oct, 2025 Benjamin Haycraft Common Stock D 10,000 $3.80 457,583 D S
17 Oct, 2025 Benjamin Haycraft Common Stock D 7,817 $3.48 449,766 D F
07 Nov, 2025 Benjamin Haycraft Common Stock D 35,957 $2.51 413,809 D F
10 Dec, 2025 Benjamin Haycraft Common Stock D 40,000 $2.20 373,809 D S