A maker of hydrogen fuel cells and electrolyzers, Plug Power builds systems that turn water into hydrogen and hydrogen into electricity. Its GenDrive fuel cells power the warehouse forklift fleets of Amazon and Walmart, and it runs green hydrogen production plants. Founded in 1997 as a joint venture between Detroit's DTE Energy and engineering firm Mechanical Technology Inc., it got its name from the idea of a 'plug-and-play' replacement for batteries — and its branding celebrates the 'power of two,' hydrogen's two atoms.
Hull Martin DanielCorporate Controller and CAO · 6 transactions
-9.5%
226.0K†as of May 2025
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Shrestha Sanjay KCSO & GM, Energy Solutions · 1 transaction
-17.8%
168.2K†as of Oct 2023
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Angle Colin MDirector · 9 transactions
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149.5K
149.5K
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Select a row to see that insider’s individual transactions. † Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: +777.1K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.