Sec Form 3 Filing - Hemmelgarn Brian J. @ Xtant Medical Holdings, Inc. - 2015-07-31

FORM 3 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 Hemmelgarn Brian J. 2. Issuer Name and Ticker or Trading Symbol Xtant Medical Holdings, Inc. [ BONE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) PO BOX 421, 15643 CAPTIVA DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 07/31/2015 (Street) CAPTIVA, FL33924 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 1,272,796 ( 1 ) I By trust ( 2 )

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 Hemmelgarn Brian J. PO BOX 421 15643 CAPTIVA D RIVE CAPTIVA, FL33924 X Brian J. Hemmelgarn Revocable Living Trust dated February 9, 1998, as amended PO BOX 421 15643 CAPTIVA DRIVE CAPTIVA, FL33924 X Signatures /s/ Brian J. Hemmelgarn, individually and as sole trustee of the Brian J. Hemmelgarn Revocable Living Trust Dated February 9, 1998, as amended 08/07/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The shares are currently held in escrow and subject to forfeiture to satisfy claims arising under the Stock Purchase Agreement dated July 27, 2015 whereby Xtant Medical Holdings, Inc. (formerly known as Bacterin International Holdings, Inc.) acquired all of the capital stock of X-spine Systems, Inc. ( 2 )The shares are held by the Brian J. Hemmelgarn Revocable Living Trust dated February 9, 1998, as amended, which may be revoked by Mr. Hemmelgarn and of which Mr. Hemmelgarn is a beneficiary and the sole trustee.

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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