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 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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(Print or Type Responses)

1. Name and Address of Reporting Person * JACKSON ROGER C   2. Issuer Name and Ticker or Trading Symbol KMG CHEMICALS INC [KMG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Vice President, Gen Counsel (Last) (First) (Middle) 5219 CONTOUR PLACE 3. Date of Earliest Transaction (Month/Day/Year) 11/15/2018 (Street) HOUSTON, TX 77096 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 11/15/2018   D   105,598 D (1) 0 D

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Performance Stock Awards

$ 0

11/15/2018

D

2

(2)

(2)

Common Stock

18,434

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JACKSON ROGER C 5219 CONTOUR PLACE HOUSTON, TX 77096			Vice President, Gen Counsel

Signatures

Roger C Jackson		11/16/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Disposed of pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of August 14, 2018, by and among KMG Chemicals, Inc. ("KMG"), Cabot Microelectronics Corporation ("Cabot Microelectronics") and Cobalt Merger Sub Corporation, in exchange for 21,119 shares of Cabot Microelectronics common stock and $5,876,590 in cash consideration at the Effective Time of the merger.
(2)	Pursuant to the Merger Agreement, the restricted stock unit awards which were granted prior to August 14, 2018 and which expire 7/31/19 and 7/31/20, fully vested and were cancelled and converted in the merger in exchange for 3,686 shares of Cabot Microelectronics common stock and $1,025,934 in cash consideration at the Effective Time of the merger, which is the right to receive the merger consideration in respect of each share of KMG common stock underlying the applicable restricted stock united award.

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