Plug Power Inc (PLUG) Insider Ownership

Historic Insider Ownership Trends

Data spanning the past 90 days through February 19, 2026 reveals that Plug Power's three principal insider shareholders consist of Officer Paul B Middleton (2.56Mn shares), Ceo Andrew Marsh (930.55K shares), Director George C Mcnamee (833.53K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Paul B Middleton Nan 2,558,064 09 Jun, 2025
Andrew Marsh Ceo 930,546 03 Dec, 2025
George C Mcnamee 833,529 06 Jan, 2026
Gary K Willis 690,354 06 Jan, 2026
Keith Schmid Gm New Mkts & Pres New Prd Dv 474,776 03 Oct, 2023
Gregory Kenausis 461,967 06 Jan, 2026
Maureen O Helmer 371,565 06 Jan, 2026
Benjamin Haycraft Cso & Gm Emea 333,809 14 Jan, 2026
Jose Luis Crespo Nan 307,332 17 Dec, 2025
Dirk Ole Hoefelmann Gm And Electrolyzers & Exec Vp 280,064 13 Apr, 2023
Gerard L Jr Conway Gen. Coun And Corp Sec. And Exec. Vp 259,482 07 May, 2025
Johannes Minho Roth 234,633 15 Jul, 2022
Kavita Mahtani 229,891 06 Jan, 2026
Mark J Bonney 212,504 06 Jan, 2026
Patrick Joggerst 196,937 06 Jan, 2026
Martin Daniel Hull Corporate Controller And Cao 179,873 07 May, 2025
Sanjay K Shrestha Cso & Gm And Energy Solutions 160,270 03 Oct, 2023
Lucas P Schneider 135,302 05 Apr, 2023
Colin M Angle 105,919 06 Jan, 2026
Jonathan M Silver 75,715 06 Jul, 2023
Jean A Bua 22,669 06 Jul, 2023
Kim Harriman 6,471 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
12 Jan, 2026 Benjamin Haycraft Common Stock D 40,000 $2.17 333,809 D S
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 Mark J Bonney Common Stock A 12,056 $1.97 212,504 D A
02 Jan, 2026 Maureen O Helmer Common Stock A 13,959 $1.97 371,565 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 Gregory Kenausis Common Stock A 9,994 $1.97 461,967 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
15 Dec, 2025 Jose Luis Crespo - - 307,332 D
10 Dec, 2025 Benjamin Haycraft Common Stock D 40,000 $2.20 373,809 D S
28 Nov, 2025 Andrew Marsh - - 930,546 D
28 Nov, 2025 Andrew Marsh Common Stock A 12,203 $2.01 930,546 D A
10 Nov, 2025 Benjamin Haycraft Common Stock D 10,000 $2.92 467,583 D S
07 Nov, 2025 Benjamin Haycraft Common Stock D 35,957 $2.51 413,809 D F
31 Oct, 2025 Andrew Marsh Common Stock A 9,415 $2.69 918,343 D A
17 Oct, 2025 Benjamin Haycraft Common Stock D 7,817 $3.48 449,766 D F
10 Oct, 2025 Benjamin Haycraft Common Stock D 10,000 $3.80 457,583 D S
03 Oct, 2025 Andrew Marsh Common Stock A 18,324 $3.81 908,928 D A