FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * MIDDLETON PAUL B 2. Issuer Name and Ticker or Trading Symbol PLUG POWER INC [ PLUG ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
CFO & Senior VP
(Last)         (First)         (Middle)
C/O PLUG POWER INC., 968 ALBANY SHAKER ROAD
3. Date of Earliest Transaction (MM/DD/YYYY)
8/10/2020
(Street)
LATHAM, NY 12110
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Plug Power Common Stock  8/10/2020    M    250000  A $2.43  318983  D   
Plug Power Common Stock  8/10/2020    M    300000  A $1.72  618983  D   
Plug Power Common Stock  8/10/2020    S(1)    550000  D $12.0000 (2) 68983  D   

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)  $2.43  8/10/2020    M        250000    (3) 7/23/2025  Common Stock  250000  $0  0  D   
Stock Option (Right to Buy)  $1.72  8/10/2020    M        300000    (3) 8/9/2026  Common Stock  300000  $0  0  D   

Explanation of Responses:
(1)  Shares sold pursuant to a pre-established 10b5-1 trading plan effective as of June 11, 2020.
(2)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.01, 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.
(3)  The stock option granted to the reporting person is fully vested and exercisable as of the date hereof.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MIDDLETON PAUL B
C/O PLUG POWER INC.
968 ALBANY SHAKER ROAD
LATHAM, NY 12110


CFO & Senior VP

Signatures
/s/ Gerard L. Conway Jr., Attorney-in-Fact 8/12/2020
**Signature of Reporting Person Date
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