Plug Power Inc.

PLUG · Industrials · Plug Power Inc. designs, develops, and sells hydrogen products and solutions in Europe, Australia, North America, and internationally

Plug Power Inc. (PLUG), in the Industrials sector, has 2 disclosed filings on Paydirt over the trailing twelve months from 2 corporate insiders: 0 purchases and 2 sales. Filers took a median of 3 days from execution to disclosure, and the most recent trade was executed Sep 18 and filed Sep 22. The most active filer was Maureen O Helmer with 1 filing. Data as of Nov 8 2026.

Add to watchlist

Filings, ttm

0 buys · 2 sells

Traders, ttm

2 insiders

Volume, ttmiDollar value disclosed in the window

$590K

estimated for Congress, as filed for insiders

Median delay

execution to disclosure

Last traded

Sep 18

Filed Sep 22

ADViAverage daily dollar volume

$115.1M

market data

Share price · 12M

$1.98 (-22.7%)

Adjusted for splits and dividends.

Volume by month

Buys $922K Sells $598K

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months

Paul B Middleton See Remarks 2 filings · 2 buys, 0 sales AS

Austin Scott Representative (Spouse) 1 filing · 0 buys, 1 sale MH

Maureen O Helmer Director 1 filing · 0 buys, 1 sale BH

Benjamin Haycraft CSO & GM EMEA 1 filing · 0 buys, 1 sale

Recent filings

Benjamin HaycraftSALE CSO & GM EMEA $428K
200,000 sh × $2.14
Exec Sep 18
Filed Sep 22 · 4:18 PM ET Maureen O HelmerSALE Director $162K
50,000 sh × $3.23
Exec Jun 8
Filed Jun 10 · 5:30 PM ET Austin ScottSALE Representative (Spouse) $8K
$1K–15K bracket
Exec Jul 31 2024
Filed Aug 13 2025 † Paul B MiddletonPURCHASE See Remarks $670K
650,000 sh × $1.03
Exec Jun 9 2025
Filed Jun 9 2025 · 5:30 PM ET Paul B MiddletonPURCHASE CFO & Executive VP $252K
350,000 sh × $0.72
Exec May 16 2025
Filed May 19 2025 · 5:30 PM ET