Sec Form 4 Filing - CARLISLE DOUGLAS C @ NLIGHT, INC. - 2018-09-11

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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person CARLISLE DOUGLAS C 2. Issuer Name and Ticker or Trading Symbol NLIGHT, INC. [ LASR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2884 SAND HILL ROAD, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 09/11/2018 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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 09/11/2018 S 1,192,205 D $ 25.44 4,768,823 ( 1 ) I See Footnote ( 2 ) Common Stock 2,914 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other CARLISLE DOUGLAS C 2884 SAND HILL ROAD SUITE 100 MENLO PARK, CA94025 X X Signatures /s/ Kerry Hill, as attorney-in-fact 09/11/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of 4,504,274 shares held of record by Menlo Ventures IX, L.P., 148,634 shares held of record by Menlo Entrepreneurs Fund IX, L.P., 21,378 shares held of record by Menlo Entrepreneurs Fund IX(A), L.P. and 94,537 shares held of record by MMEF IX, L.P. ( 2 )MV Management IX, L.L.C., is the general partner of and exercises voting and dispositive power over Menlo Ventures IX, L.P., Menlo Entrepreneurs Fund IX, L.P., Menlo Entrepreneurs Fund IX(A), L.P. and MMEF IX, L.P (collectively, the "Menlo Funds"). The Reporting Person is a managing member of MV Management IX, L.L.C. and disclaims beneficial ownership of the shares reported herein as held by the Menlo Funds.

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).

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