PLUG POWER INC — Director's Dealing 2021

Jan 7, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLUG POWER INC (PLUG)
CIK: 0001093691
Period of Report: 2021-01-04

Reporting Person: Conway Gerard L JR (Gen Counsel, Corp Sec, Sr VP)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-04	Common Stock	M	108333	$2.14	Acquired	293852	Direct
2021-01-04	Common Stock	S	61538	$31.9402	Disposed	232314	Direct
2021-01-04	Common Stock	S	35095	$32.7113	Disposed	197219	Direct
2021-01-04	Common Stock	S	6100	$33.6186	Disposed	191119	Direct
2021-01-04	Common Stock	S	5600	$34.5887	Disposed	185519	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-01-04	Stock Option (Right to Buy)	$2.14	M	108333	Disposed	2027-08-31	Common Stock (108333)	Direct

Footnotes

F1: Shares sold pursuant to a pre-established 10b5-1 trading plan effective as of March 16, 2020.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.19 to $32.18,
inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange
Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.19 to $33.18,
inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange
Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.19 to $34.17,
inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange
Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.19 to $34.90,
inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange
Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

F6: The stock option granted to the Reporting Person is fully vested and exercisable as of the date hereof.