144 0002085249 XXXXXXXX LIVE 0001093691 PLUG POWER INC 001-34392 125 VISTA BOULEVARD SLINGERLANDS NY 12159 5187827700 Haycraft Benjamin Officer COMMON RBC CAPITAL MARKETS LLC

250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401

200000 428300.00 1397195278 09/18/2026 NASDAQ COMMON 09/18/2026 OPTION EXERCISE ISSUER N 200000 09/18/2026 N/A N BENJAMIN HAYCRAFT C/O RBC CAPITAL MARKETS LLC

250 NICOLLET MALL MINNEAPOLIS MN 55401

PLUG POWER INC 09/11/2026 13810 29553.00 BENJAMIN HAYCRAFT C/O RBC CAPITAL MARKETS LLC

250 NICOLLET MALL MINNEAPOLIS MN 55401

PLUG POWER INC 09/15/2026 18750 38625.00 SOLD PURSUANT TO A RULE 10B5-1 PLAN ESTABLISHED 6-11-26 09/18/2026 06/11/2026 POA / JEFFREY EISCHENS