PLUG POWER INC — Director's Dealing 2012

May 18, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLUG POWER INC (PLUG)
CIK: 0001093691
Period of Report: 2012-05-16

Reporting Person: MCNAMEE GEORGE C (Director, Chairman of the Board)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-16	Option to Purchase Plug Power Common Stock	$1.22	A	15000	Acquired	2022-05-16	Plug Power Common Stock (15000)	Direct

Footnotes

F1: Awarded pursuant to Plug Power's 2011 Non-Employee Director Compensation Plan.

F2: Consists of an option to acquire common stock granted on May 16, 2012 with respect to which: 15,000 shares will become exercisable one year from the grant date provided the non-employee director has remained as a director of the Company during that one-year period.

F3: This total also accounts for 2,000 options that expired on 5/16/2012.