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 *

DEUTCH PHILIP J
2. Issuer Name and Ticker or Trading Symbol

TPI COMPOSITES, INC [ TPIC ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

1750 K STREET NW, SUITE 700
3. Date of Earliest Transaction (MM/DD/YYYY)

4/16/2018
(Street)

WASHINGTON, DC 20006
(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
Common Stock   4/16/2018     S    119757.00   D $22.21   (1) 2005433.00   I   See Footnote   (2)
Common Stock   4/17/2018     S    183523.00   D $22.03   (3) 1821910.00   I   See Footnote   (2)
Common Stock   4/18/2018     S    900.00   D $22.26   (4) 1821010.00   I   See Footnote   (2)
Common Stock                  2880.00   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

Explanation of Responses:
(1)  This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $22.00 to $22.76. The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
(2)  These securities are held of record by NGP Energy Technology Partners, L.P. ("NGP LP"). NGP ETP, L.L.C. ("NGP ETP") is the general partner of NGP LP and Energy Technology Partners, L.L.C. ("ETP LLC") is the manager of NGP ETP. The Reporting Person is the manager of ETP LLC and may be deemed to share voting and investment power with respect to all shares held by NGP LP. This report on Form 4 is jointly filed by NGP LP, NGP ETP and ETP LLC. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.
(3)  This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $22.00 to $22.27. The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
(4)  This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $22.25 to $22.26. The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
DEUTCH PHILIP J
1750 K STREET NW, SUITE 700
WASHINGTON, DC 20006
X



Signatures
/s/ Steven G. Fishbach, Attorney-in-Fact 4/18/2018
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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