Plug Power PLUG Insider Ownership

NASDAQ PLUG
$2.10 -0.07 (-3.11%)
As of: Sep 10, 2026 · 10:18 AM EDT

Insider Holdings by Owner

9.71Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.0020%
■0% pp QoQ
Shares Held by Insiders
22.67K
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
1.16Bn
1,158,516,229 shares
Direct Holdings
22.67K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
22
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

Plug Power's three largest insider shareholders as of September 09, 2026 are Paul B Middleton (Cfo Executive Vp, 2.95Mn shares), Andrew Marsh (Ceo, 930.55K shares), George C Mcnamee (Director, 873.28K shares).

Form 4 Holdings

Insiders Holding PLUG

Insiders 22
Shares held 9.71Mn
Of outstanding 0.838%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Paul B Middleton Cfo Executive Vp 2,947,169 0 2,947,169 30.4% 29 Jun, 2026
2 Andrew Marsh Ceo 930,546 0 930,546 9.6% 03 Dec, 2025
3 George C Mcnamee Director 873,282 0 873,282 9.0% 16 Jun, 2026
4 Gary K Willis Director 730,107 0 730,107 7.5% 16 Jun, 2026
5 Gregory Kenausis Director 514,412 0 514,412 5.3% 06 Jul, 2026
6 Keith Schmid Gm New Mkts Pres New Prd Dv 474,776 0 474,776 4.9% 03 Oct, 2023
7 Benjamin Haycraft Cso Gm Emea 333,809 0 333,809 3.4% 14 Jan, 2026
8 Maureen O Helmer Director 321,565 0 321,565 3.3% 10 Jun, 2026
9 Jose Luis Crespo Chief Revenue Officer 307,332 0 307,332 3.2% 17 Dec, 2025
10 Dirk Ole Hoefelmann Gm, Electrolyzers Exec Vp 280,064 0 280,064 2.9% 13 Apr, 2023
11 Mark J Bonney Director 271,530 0 271,530 2.8% 06 Jul, 2026
12 Gerard L Jr Conway Gen. Coun, Corp Sec., Exec. Vp 259,482 0 259,482 2.7% 07 May, 2025
13 Patrick Joggerst Director 253,184 0 253,184 2.6% 06 Jul, 2026
14 Kavita Mahtani Director 239,847 0 239,847 2.5% 10 Apr, 2026
15 Johannes Minho Roth Director 234,633 0 234,633 2.4% 15 Jul, 2022
16 Martin Daniel Hull Corporate Controller And Cao 179,873 0 179,873 1.9% 07 May, 2025
17 Sanjay K Shrestha Cso Gm, Energy Solutions 160,270 0 160,270 1.7% 03 Oct, 2023
18 Colin M Angle Director 153,102 0 153,102 1.6% 06 Jul, 2026
19 Lucas P Schneider Director 135,302 0 135,302 1.4% 05 Apr, 2023
20 Jonathan M Silver Director 75,715 0 75,715 0.8% 06 Jul, 2023
21 Jean A Bua Director 22,669 0 22,669 0.2% 06 Jul, 2023
22 Kim Harriman Director 6,471 0 6,471 0.1% 15 Jul, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

3,640 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
25 Jun, 2026 Benjamin Haycraft Cso Gm Emea Acquired A 357,143 $0.00 $0 357,143 Direct
01 Jul, 2026 Gregory Kenausis Director Acquired A 3,980 $2.71 $10.79K 514,412 Direct
01 Jul, 2026 Mark J Bonney Director Acquired A 8,764 $2.71 $23.75K 271,530 Direct
01 Jul, 2026 Patrick Joggerst Director Acquired A 7,644 $2.71 $20.72K 253,184 Direct
01 Jul, 2026 Colin M Angle Director Acquired A 3,558 $2.71 $9.64K 153,102 Direct
25 Jun, 2026 Benjamin Haycraft Cso Gm Emea Acquired A 362,694 $0.00 $0 362,694 Direct
25 Jun, 2026 Paul B Middleton Cfo Executive Vp Acquired A 389,105 $0.00 $0 2,947,169 Direct
25 Jun, 2026 Jose Luis Crespo Officer Acquired A 765,306 $0.00 $0 765,306 Direct
25 Jun, 2026 Dean Fullerton Chief Operating Officer Acquired A 408,163 $0.00 $0 408,163 Direct
25 Jun, 2026 Jose Luis Crespo Officer Acquired A 777,202 $0.00 $0 777,202 Direct
25 Jun, 2026 Dean Fullerton Chief Operating Officer Acquired A 414,508 $0.00 $0 414,508 Direct
25 Jun, 2026 Paul B Middleton Cfo Executive Vp Acquired A 510,204 $0.00 $0 510,204 Direct
11 Jun, 2026 George C Mcnamee Director Acquired A 39,753 $0.00 $0 873,282 Direct
11 Jun, 2026 Gregory Kenausis Director Acquired A 39,753 $0.00 $0 510,432 Direct
11 Jun, 2026 Gary K Willis Director Acquired A 39,753 $0.00 $0 730,107 Direct
11 Jun, 2026 Colin M Angle Director Acquired A 39,753 $0.00 $0 149,544 Direct
11 Jun, 2026 Mark J Bonney Director Acquired A 39,753 $0.00 $0 262,766 Direct
11 Jun, 2026 Patrick Joggerst Director Acquired A 39,753 $0.00 $0 245,540 Direct
11 Jun, 2026 Mark J Bonney Director Acquired A 39,753 $0.00 $0 39,753 Direct
11 Jun, 2026 Gary K Willis Director Acquired A 39,753 $0.00 $0 39,753 Direct