Sec Form 4 Filing - SIZE ROBERT J. @ DENTSPLY SIRONA Inc. - 2018-02-23

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person SIZE ROBERT J. 2. Issuer Name and Ticker or Trading Symbol DENTSPLY SIRONA Inc. [ XRAY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Interim President and COO (Last) (First) (Middle) 221 W PHILADELPHIA ST, STE 60W 3. Date of Earliest Transaction (MM/DD/YY) 02/23/2018 (Street) YORK, PA17401 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 02/23/2018 M 4,215 ( 1 ) A $ 0 24,255.233 D Common Stock 02/23/2018 M 4,682 ( 2 ) A $ 0 28,937.233 D Common Stock 02/23/2018 F 2,563 ( 3 ) D $ 57.67 26,374.233 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 RSU (Restricted Stock Unit) ( 4 ) 02/23/2018 M 4,215 ( 1 ) 02/23/2018 02/23/2018 Common Stock 4,215 $ 0 4,157.934 D PRSU (Performance Measured Restricted Stock Unit) ( 5 ) 02/23/2018 M 4,682 ( 2 ) 02/23/2018 02/23/2018 Common Stock 4,682 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SIZE ROBERT J. 221 W PHILADELPHIA ST, STE 60W YORK, PA17401 Interim President and COO Signatures Dane Baumgardner, Attorney-In-Fact for Robert J. Size 02/27/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Comprised of four thousand two hundred fifteen (4,215) vested RSUs plus sixty-eight (68) RSUs accrued through dividend equivalent rights, each as previously reported in this Table II. ( 2 )Comprised of four thousand six hundred seven (4,607) vested Performance Restricted Stock Units (PRSUs) plus seventy-five (75) DERs accrued through dividend equivalent rights, each as previously reported in this Table II. ( 3 )Shares withheld to cover taxes related to the vesting of the reporting person's RSUs and PRSUs. ( 4 )RSUs vest in full three years from date of grant and convert into common stock on a 1:1 basis for no additional consideration. ( 5 )PRSUs vest in full three years from date of grant and convert into common stock on a 1:1 basis for no additional consideration.

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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.