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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1. Name and Address of Reporting Person * KRAMER FRANCIS J   2. Issuer Name and Ticker or Trading Symbol II-VI INC [IIVI] 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) C/O II-VI INCORPORATED, 375 SAXONBURG BLVD 3. Date of Earliest Transaction (Month/Day/Year) 10/31/2017 (Street) SAXONBURG, PA 16056 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 10/31/2017   M   16,850 A $ 23.495 286,259 D   Common Stock 10/31/2017   M   8,150 A $ 12.075 294,409 D   Common Stock 10/31/2017   S(1)   25,000 D $ 45.0991 (2) 269,409 D   Common Stock               285,401 I By Spousal Limited Access Trust (3) Common Stock               89,657 I By GRAT (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Option (Right to Buy)

$ 23.495 (4)

10/31/2017

M

16,850 (4)

(5)

08/16/2018

Common Stock

16,850 (4)

$ 0

0

D

Option (Right to Buy)

$ 12.075 (6)

10/31/2017

M

8,150 (6)

(7)

08/15/2019

Common Stock

8,150 (6)

$ 0

60,050 (6)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KRAMER FRANCIS J C/O II-VI INCORPORATED 375 SAXONBURG BLVD SAXONBURG, PA 16056	X

Signatures

/s/ Jeffrey W. Acre, Attorney-in-Fact		11/01/2017
**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)	The sale transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 13, 2017.
(2)	Represents the weighted average of multiple sales transactions ranging in price from $45.00 to $45.55. The reporting person agrees to provide full information regarding the number of shares sold at each separate price upon request by the SEC staff, the Company or a security holder of the Company.
(3)	The reporting person disclaims beneficial ownership of these securities, other than to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
(4)	The grant of these options previously was reported as covering 20,925 shares at an exercise price of $46.99 per share. These options were adjusted to reflect a 2-for-1 stock split that occurred on June 27, 2011.
(5)	These options vested in five equal annual installments beginning on August 16, 2009.
(6)	The grant of these options previously was reported as covering 34,100 shares at an exercise price of $24.15 per share. These options were adjusted to reflect a 2-for-1 stock split that occurred on June 27, 2011.
(7)	These options vested on August 15, 2012.

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