Document:

EX-10.3

 Exhibit 10.3 

Execution Copy 

Private & Confidential 

SUPPORT AGREEMENT 

This SUPPORT AGREEMENT (this “Agreement”), dated as of January 13, 2020, by and between Ardi Bidco Ltd., a Delaware
corporation (“Buyer”), and the shareholder of RTI Surgical Holdings, Inc., a Delaware corporation (“Parent”), identified on Schedule A hereto (the “Shareholder”). Capitalized terms used
herein and not otherwise defined herein shall have the meanings ascribed to such terms in the Purchase Agreement (as defined below). 

WHEREAS, concurrently herewith, Buyer and Parent will enter into an Equity Purchase Agreement dated as of the date hereof (the
“Purchase Agreement”), pursuant to which, among other things and subject to the terms and conditions of the Purchase Agreement, Buyer and/or one or more of its Affiliates will purchase 100% of the equity securities of certain
Subsidiaries of Parent. 
 WHEREAS, as of the date hereof, the Shareholder holds and is entitled to vote (or direct the voting of) the
number of shares of common stock, par value $.001 per share, of Parent (“Common Stock”) and Series A convertible preferred stock, par value $.001 per share, of Parent (“Preferred Stock”) set forth opposite his name
on Schedule A hereto (such Common Stock and Preferred Stock held by the Shareholder together with any other shares of Common Stock and Preferred Stock acquired by the Shareholder after the date hereof and during the Agreement Term (as defined
below) being collectively referred to herein as the “Subject Shares”). 
 WHEREAS, the Shareholder owns the number of
options to purchase Common Stock (“Options”), restricted shares of Common Stock (“Restricted Stock”), and other securities convertible into, exchangeable for or evidencing the right to subscribe for or purchase, or
exercisable for or convertible into Common Stock or other equity securities set forth opposite his name on Schedule B hereto (such Options, Restricted Stock and other securities held by the Shareholder together with any other Options,
Restricted Stock or other securities of Parent acquired by the Shareholder after the date hereof and during the Agreement Term being collectively referred to herein as the “Other Shares”, and together with the Subject Shares, the
“Parent Shares”). 
 WHEREAS, as a condition to Buyer’s willingness to enter into and perform its obligations under
the Purchase Agreement, Buyer has required that the Shareholder agree, and the Shareholder is willing to agree, to enter into this Agreement. 

NOW, THEREFORE, in consideration of the foregoing and the premises, representations, warranties, covenants and agreements set forth in this
Agreement and for other good and valuable consideration given to each party hereto, the receipt of which is hereby acknowledged, the parties agree as follows: 

 ARTICLE I. 

SHAREHOLDER CONSENT; AGREEMENT TO VOTE 

Section 1.1. Agreement to Vote. The Shareholder hereby irrevocably and unconditionally agrees that, from the date hereof until the
termination of this Agreement in accordance with Section 5.1 (the “Agreement Term”), the Shareholder shall (i) take all such actions as may be required to cause each Parent Share held by the
Shareholder to be present, in person or by proxy, at any duly called meeting of the shareholders of Parent in connection with the Purchase Agreement or any Contemplated Transaction, including at any adjournment or postponement thereof, for purposes
of establishing a quorum and (ii) at any such meeting, including at any adjournment or postponement thereof, and on every action or approval by written consent by the stockholders of Parent, vote (or cause to be voted), in person or by proxy,
to the extent entitled to vote thereon, all of the Parent Shares held by the Shareholder: 
 (a) in favor of (1) granting the Required
Parent Vote and (2) any proposal to adjourn or postpone such meeting to a later date; and 
 (b) against (1) any Acquisition
Agreement (other than the Purchase Agreement and the Contemplated Transactions), share exchange, consolidation, combination, dual listed structure, sale of assets, issuance of securities, reorganization, recapitalization, dissolution, liquidation,
winding up or other extraordinary transaction of or by Parent, (2) any Acquisition Proposal or Superior Proposal, (3) any action that would reasonably be expected to result in a breach of or failure to perform, in any material respect, any
representation, warranty, covenant or agreement of Parent under the Purchase Agreement or of the Shareholder under this Agreement, and (4) any action that would reasonably be expected to prevent, impede, frustrate, interfere with, delay,
postpone, adversely affect or nullify any provision of the Purchase Agreement, the Transaction Agreements or any other agreement contemplated by the Purchase Agreement, the Contemplated Transactions or change in any manner the voting rights of any
class of capital stock of Parent. The Shareholder shall not commit or agree to take any action inconsistent with the foregoing. 

Section 1.2. Other Voting Rights. For the avoidance of doubt, (a) except as expressly set forth in
Section 1.1, nothing in this Agreement shall limit the right of the Shareholder to vote in favor of, against, or abstain with respect to any matter presented to the stockholders of Parent not addressed by this Agreement and
(b) nothing in this Agreement shall require the Shareholder to vote in favor of, against, or abstain with respect to, any amendment or modification to the Purchase Agreement. 

ARTICLE II. 

REPRESENTATIONS AND WARRANTIES OF THE SHAREHOLDER 

The Shareholder hereby represents and warrants to Buyer as follows: 

Section 2.1. Power; Due Authorization; Binding Agreement. The Shareholder has the requisite power, authority and legal capacity to
enter into, execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement and the consummation by the Shareholder of the transactions
contemplated hereby have been duly and validly authorized by all necessary corporate, partnership or other applicable action on the part of the Shareholder, and no other proceedings on the part of the Shareholder are necessary to authorize this
Agreement or to consummate the transactions contemplated hereby. This Agreement has been duly and validly 

  
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executed and delivered by the Shareholder and, assuming the due and valid authorization, execution and delivery hereof by the other parties hereto, constitutes a valid and binding agreement of
the Shareholder, enforceable against the Shareholder in accordance with its terms, except that (i) such enforcement may be subject to applicable bankruptcy, insolvency, reorganization, moratorium or other similar Requirements of Law, now or
hereafter in effect, relating to creditors’ rights generally and (ii) equitable remedies of specific performance and injunctive and other forms of equitable relief may be subject to equitable defenses and to the discretion of the court
before which any proceeding therefor may be brought. 
 Section 2.2. Ownership of Parent Shares. On the date hereof, the
Shareholder is the record and beneficial owner of the Parent Shares set forth opposite the Shareholder’s name on Schedule A hereto, free and clear of any limitation or restriction on the Shareholder’s
right to vote the Parent Shares or otherwise comply with its obligations under this Agreement. The Shareholder does not own, of record or beneficially, any shares of capital stock of Parent, or other rights to acquire shares of capital stock of
Parent, in each case other than the Parent Shares. Other than (a) restrictions in favor of Buyer pursuant to this Agreement, (b) such transfer restrictions of general applicability as may be provided under the Securities Act or the
“blue sky” Laws of the various states of the United States and (c) any restrictions contained in the organizational documents of Parent (i) the Shareholder has, and at any stockholder meeting of Parent held during the Agreement
Term to vote regarding the Required Parent Vote, including at any adjournment or postponement thereof, the Shareholder will have (except as otherwise permitted by this Agreement), sole voting power and sole dispositive power with respect to the
matters set forth in Section 1.1 in respect of all of the Parent Shares of the Shareholder, (ii) none of the Shareholder’s Subject Shares is subject to any voting trust, pledge, disposition, transfer or other
agreement, arrangement or restriction with respect to the voting of the Subject Shares and (iii) no proxies have been given in respect of any or all of such Parent Shares, other than proxies which have been validly revoked prior to the date
hereof. 
 Section 2.3. No Conflict. The execution and delivery of this Agreement by the Shareholder does not, and the
performance of the terms of this Agreement by the Shareholder will not, (a) require the consent or approval of, or registration, declaration or filing with, any other Person or Governmental Body, (b) conflict with or violate or result in
any breach of, or require consent, or constitute a default (with or without notice or lapse of time, or both) under, or give to others any rights of termination, amendment, acceleration or cancellation of any obligation under or result in the loss
of a material benefit under, or result in the creation of an Encumbrance on any of the Shareholder’s Parent Shares, pursuant to any contract or agreement to which the Shareholder is a party or by which the Shareholder or any of the
Shareholder’s assets (including Parent Shares) are bound, or (c) violate any provision of any Court Order or Requirements of Law applicable to the Shareholder or the Shareholder’s Parent Shares, except in the case of the foregoing,
which would not, individually or in the aggregate, prevent, delay or impair in any respect the Shareholder’s ability to perform the Shareholder’s obligations under this Agreement. No consent of the Shareholder’s spouse, if applicable,
is necessary under any “community property” or other Requirements of Law in order for the Shareholder to execute, deliver and perform under this Agreement or to consummate the transactions contemplated hereby. 

  
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 Section 2.4. Acknowledgment. The Shareholder understands and acknowledges that
Buyer is entering into the Purchase Agreement in reliance upon the Shareholder’s execution, delivery and performance of this Agreement. 

Section 2.5. Acquisition Proposals. The Shareholder is not currently engaged in any discussions or negotiations with any Person
(other than Buyer) regarding any Acquisition Proposal. 
 Section 2.6. Actions and Proceedings. As of the date hereof, there are
no (a) Proceedings pending or, to the knowledge of the Shareholder, threatened against the Shareholder or any of its assets or (b) outstanding Court Orders to which the Shareholder or any of its assets are subject or bound, in each case,
which could reasonably be expect to, individually or in the aggregate, prevent, materially delay or impair in any material respect the Shareholder’s ability to perform its obligations under this Agreement. 

ARTICLE III. 

REPRESENTATIONS AND WARRANTIES OF BUYER 

Buyer hereby represents and warrants to the Shareholder as follows: 

Section 3.1. Power; Due Authorization; Binding Agreement. Buyer has the requisite power and authority to execute and deliver this
Agreement, to perform its obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement by Buyer and the consummation by Buyer of the transactions contemplated hereby have been duly and
validly authorized by all necessary corporate action on the part of Buyer, and no other proceedings on the part of Buyer are necessary to authorize this Agreement or to consummate the transactions contemplated hereby. This Agreement has been duly
and validly executed and delivered by Buyer and, assuming the due and valid authorization, execution and delivery hereof by the other parties hereto, constitutes a valid and binding agreement of Buyer, enforceable against Buyer in accordance with
its terms, except that (i) such enforcement may be subject to applicable bankruptcy, insolvency, reorganization, moratorium or other similar Requirements of Law, now or hereafter in effect, relating to creditors’ rights generally and
(ii) equitable remedies of specific performance and injunctive and other forms of equitable relief may be subject to equitable defenses and to the discretion of the court before which any proceeding therefor may be brought. 

Section 3.2. No Conflict. The execution and delivery of this Agreement by Buyer does not, and the performance of the terms of this
Agreement by Buyer will not, (a) require the consent or approval of, or any registration, declaration or filing with, any other Person or Governmental Body, (b) conflict with or violate any governing document of Buyer, (c) conflict
with or violate or result in any breach of, or require consent, or constitute a default (with or without notice or lapse of time, or both) under, or give to others any rights of termination, amendment, acceleration or cancellation of any obligation
under, or result in the loss of a material benefit under any contract or agreement to which Buyer is a party or by which Buyer is bound, or (d) violate any provision of any Court Order or Requirements of Law applicable to Buyer or any of its
assets, except in the case of clauses (a), (c) and (d), which would not, individually or in the aggregate, prevent, delay or impair in any respect Buyer’s ability to perform its obligations under this Agreement. 

  
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 Section 3.3. Actions and Proceedings. As of the date hereof, there are no
(a) Proceedings pending or, to the knowledge of Buyer, threatened against Buyer or any of its assets or (b) outstanding Court Orders to which Buyer or any of its assets are subject or bound, in each case, which could reasonably be expected
to, individually or in the aggregate, prevent, materially delay or impair in any material respect Buyer’s ability to perform its obligations under this Agreement. 

ARTICLE IV. 
 COVENANTS
OF THE SHAREHOLDER 
 Section 4.1. Restriction on Transfer, Proxies
and Non-Interference. The Shareholder hereby agrees, during the Agreement Term, not to, directly or indirectly, (i) offer, sell, transfer, exchange, pledge, encumber, assign or
otherwise dispose of (including by gift), or enter into any contract, option or other arrangement or understanding with respect to the offer, sale, transfer, exchange, pledge, encumbrance, assignment or other disposition of, or limitation on the
voting rights of, any of the Shareholder’s Parent Shares (any such action, a “Transfer”), (ii) grant any proxies or powers of attorney with respect to the Parent Shares of the Shareholder, deposit any such Parent Shares
into a voting trust or enter into a voting agreement, whether by proxy, voting agreement or otherwise, with respect to any such Parent Shares, in each case with respect to any vote on the approval and/or adoption of the Purchase Agreement or any
other matters set forth in Section 1.1, (iii) form or join any “group” (as such term is defined in Section 13(d)(3) of the Exchange Act) with any Persons with respect to any securities of Parent (other than, if any, pursuant
to this Agreement) or (iv) commit or agree to take any of the foregoing actions during the Agreement Term; provided that, the foregoing notwithstanding, this Agreement shall not prohibit Transfers of Parent Shares with Buyer’s prior
written consent. Any Transfer (or purported Transfer) in breach of this Agreement shall be null and void and of no force or effect. 

Section 4.2. Limitations on Actions. The Shareholder shall not engage, nor shall it authorize or permit any investment banker,
attorney, accountant or other representative or agent acting on its behalf (collectively, the “Shareholder Representatives”) to engage, directly or indirectly, in any activity that would be prohibited pursuant to
Section 7.6 of the Purchase Agreement. Notwithstanding anything to the contrary in this Agreement, if Parent, in compliance with the provisions of Section 7.6 of the Purchase Agreement, has
provided information to or entered into discussions or negotiations with any Person in response to an Acquisition Proposal made by such Person, then the Shareholder and his Shareholder Representatives may provide information to and engage in
discussions or negotiations with such Person only to the extent Parent and its representatives and Subsidiaries and their respective officers and directors are permitted to do so pursuant to the terms of Section 7.6 of the
Purchase Agreement, but only if instructed by the Parent Board to provide such information or engage in such discussion or negotiation. Subject to the foregoing, Buyer expressly acknowledges that the Shareholder is entering into this Agreement
solely in the Shareholder’s capacity as the owner of Parent Shares and this Agreement shall not limit or otherwise affect the actions or fiduciary duties of the Shareholder, or any affiliate, partner, member, trustee, beneficiary, settlor,

  
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employee or designee of the Shareholder or any of their respective affiliates (collectively, “Affiliates”) in their capacity, if applicable, as a member of the Parent Board; provided,
that any action so taken in such capacity shall not affect the obligations of the Shareholder under this Agreement. Buyer shall not assert any claim that any action taken by any Affiliate of Shareholder in the capacity as a member of the Parent
Board violates any provision of this Agreement. 
 Section 4.3. Press Releases. The Shareholder shall not issue any press
release or make any other public statement with respect to the Purchase Agreement, the Transaction Agreements or the Contemplated Transactions without the prior consent of Buyer. Notwithstanding the foregoing, nothing in this Agreement shall
prohibit the Shareholder or its Affiliates from making any filing required by applicable federal and state laws and any regulations promulgated thereunder (and the Shareholder will provide Buyer a reasonable opportunity to review any such filing
prior to its submission). 
 Section 4.4. Further Assurances. From time to time, at the reasonable request of Buyer and without
further consideration, the Shareholder shall execute and deliver, or cause to be executed and delivered, such additional or further consents, documents and other instruments and take all such further action as may be reasonably necessary or
desirable to comply with the Shareholder’s obligations under this Agreement. 
 ARTICLE V. 

MISCELLANEOUS 

Section 5.1. Termination of this Agreement. This Agreement, and all obligations, terms and conditions contained herein, shall
automatically terminate without any further action required by any party hereto upon the earliest to occur of: (a) receipt of the Required Parent Vote, (b) the termination of the Purchase Agreement in accordance with its terms, or
(c) any reduction to the Base Purchase Price or other amendment or modification to the Purchase Agreement that is materially adverse to the Shareholder. In addition to the foregoing, this Agreement may be terminated at any time by the written
consent of all of the parties hereto. 
 Section 5.2. Effect of Termination. In the event of any termination of this Agreement
pursuant to Section 5.1, this Agreement shall become void and of no effect with no liability on the part of any party hereto; provided, however, notwithstanding the forgoing, no such termination shall relieve any party
hereto from any liability for any breach of this Agreement occurring prior to such termination and the provisions of this Article V shall survive any such termination. 

Section 5.3. Entire Agreement; Assignment. This Agreement and any documents delivered by the parties in connection herewith
constitute the entire agreement among the parties with respect to the subject matter hereof and supersede all other prior agreements and understandings, both written and oral, among the parties with respect to the subject matter hereof. Except as
set forth in this Section 5.3, nothing in this Agreement, express or implied, is intended to or shall confer upon any Person other than the parties hereto any rights or remedies hereunder. Neither this Agreement nor any of the rights, interests
or obligations under this 

  
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Agreement may be assigned or delegated, in whole or in part, by operation of the Requirements of Law or otherwise, by any party without the prior written consent of the other parties, and any
such assignment without such prior written consent shall be null and void, provided, that Buyer may assign its rights hereunder (in whole or from time to time in part) to an Affiliate of Buyer. Subject to the preceding sentence, this
Agreement will be binding upon, inure to the benefit of, and be enforceable by, the parties and their respective successors and permitted assigns. 

Section 5.4. Amendments and Waivers. This Agreement may only be amended or waived if, and only if, such amendment or waiver is in
writing and signed, in the case of an amendment, by each of the parties hereto, or in the case of a waiver, by the party against whom the waiver is to be effective. No failure or delay by any party in exercising any right hereunder shall operate as
a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise of any other right hereunder. 

Section 5.5. Notices. Any notices or other communications required or permitted under, or otherwise given in connection with, this
Agreement shall be in writing and will be deemed to have been duly given (i) when delivered or sent if delivered in person or sent by email transmission (provided confirmation of email transmission is obtained) or (ii) on the next business
day if transmitted by national overnight courier, in each case, to Buyer in accordance with Section 13.3 of the Purchase Agreement and to the Shareholder at his address set forth on Schedule A and Schedule B
hereto (or at such other address for a party as shall be specified by like notice). 
 Section 5.6. Governing Law; Jurisdiction;
Waiver of Jury Trial. 
 (a) All issues and questions concerning the construction, validity, interpretation and enforceability of this
Agreement will be governed by, and construed in accordance with, the Laws of the State of Delaware, without giving effect to any choice of Requirements of Law or conflict of Requirements of Law rules or provisions (whether of the State of Delaware
or any other jurisdiction) that would cause the application of the Requirements of Law of any jurisdiction other than the State of Delaware. 

(b) Any Proceeding seeking to enforce any provision of, or based on any matter arising out of or in connection with, this Agreement or the
transactions contemplated hereby will be brought and determined exclusively in the Delaware Court of Chancery of the State of Delaware; provided that if the Delaware Court of Chancery does not have subject matter jurisdiction, any
such Proceeding will be brought exclusively in the United States District Court for the District of Delaware or any other court of the State of Delaware, and each of the parties hereby consents to the exclusive jurisdiction of such courts (and of
the appropriate appellate courts therefrom) in any such Proceeding and irrevocably waives, to the fullest extent permitted by Requirements of Law, any objection that such party may now or hereafter have to the laying of the venue of any such
Proceeding in any such court or that any such Proceeding that is brought in any such court has been brought in an inconvenient forum. Process in any such Proceeding may be served on any party anywhere in the world, whether within or without the
jurisdiction of any such court. Without limiting the foregoing, each party agrees that service of process on such party as provided in Section 5.5 will be deemed effective service of process on such party. 

  
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 (c) EACH OF THE PARTIES TO THIS AGREEMENT HEREBY WAIVES, TO THE FULLEST EXTENT PERMITTED BY
REQUIREMENTS OF LAW, ANY RIGHT TO TRIAL BY JURY OF ANY CLAIM, DEMAND, ACTION OR CAUSE OF ACTION (1) ARISING UNDER THIS AGREEMENT OR (2) IN ANY WAY CONNECTED WITH OR RELATED OR INCIDENTAL TO THE DEALINGS OF THE PARTIES HERETO IN RESPECT OF
THIS AGREEMENT OR ANY OF THE TRANSACTIONS RELATED HERETO, IN EACH CASE WHETHER NOW EXISTING OR HEREAFTER ARISING, AND WHETHER IN CONTRACT, TORT, EQUITY OR OTHERWISE. EACH OF THE PARTIES TO THIS AGREEMENT HEREBY AGREES AND CONSENTS THAT ANY SUCH
CLAIM, DEMAND, ACTION OR CAUSE OF ACTION WILL BE DECIDED BY COURT TRIAL WITHOUT A JURY, AND THAT THE PARTIES TO THIS AGREEMENT MAY FILE A COPY OF THIS AGREEMENT WITH ANY COURT AS WRITTEN EVIDENCE OF THE CONSENT OF THE PARTIES HERETO TO THE WAIVER OF
THEIR RIGHT TO TRIAL BY JURY. 
 Section 5.7. Specific Performance. 

(a) The parties agree that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed in
accordance with their specific terms or were otherwise breached. Each party agrees that in the event of any breach or threatened breach by any other party of any covenant or obligation contained in this Agreement,
the non-breaching party shall be entitled (in addition to any other remedy that may be available to such non-breaching party, whether in law or
equity, including monetary damages) to (i) a decree or order of specific performance to enforce the observance and performance of such covenant or obligation, and (ii) an injunction restraining such breach or threatened breach. 

(b) Each party further agrees that (x) it will not oppose the granting of an injunction, specific performance or other equitable relief as
provided herein on the basis that any other party has an adequate remedy at law or an award of specific performance is not an appropriate remedy for any reason at law or equity and (y) no other party or any other Person shall be required to
obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this Section 5.7, and each party irrevocably waives any right it may have to require the
obtaining, furnishing or posting of any such bond or similar instrument. 
 Section 5.8. Counterparts; Effectiveness. This
Agreement may be executed in two or more counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. This Agreement may be executed by facsimile signature or by
emailed portable document format (.pdf) file signature and a facsimile or .pdf signature shall constitute an original for all purposes. 

Section 5.9. Headings. Headings of the Articles and Sections of this Agreement are for convenience of the parties only and shall
be given no substantive or interpretive effect whatsoever. 

  
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 Section 5.10. Severability. Any term or provision of this Agreement which is
invalid or unenforceable in any jurisdiction shall, as to that jurisdiction, be ineffective to the sole extent of such invalidity or unenforceability without rendering invalid or unenforceable the remainder of such term or provision or the remaining
terms and provisions of this Agreement in any jurisdiction. If any provision of this Agreement is so broad as to be unenforceable, such provision shall be interpreted to be only so broad as is enforceable. 

Section 5.11. Remedies Cumulative. Except as otherwise provided herein, any and all remedies expressly conferred upon a party
hereto shall be deemed cumulative with and not exclusive to any other remedy conferred by this Agreement, or by applicable Requirements of Law on such party, and the exercise by a party of any one remedy will not preclude the exercise of any other
remedy. 
 Section 5.12. Interpretation. 

(a) When a reference is made in this Agreement to an Article or Section, such reference shall be to an Article or Section of this
Agreement unless otherwise indicated. Whenever the words “include,” “includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words “without limitation.” The words
“hereof,” “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The word “or” when
used in this Agreement is not exclusive. The definitions contained in this Agreement are applicable to the singular as well as the plural forms of such terms and to the masculine as well as to the feminine and neuter genders of such terms. 

(b) Any agreement, instrument or statute defined or referred to herein or in any agreement or instrument that is referred to herein means such
agreement, instrument or statute as from time to time amended, modified or supplemented, including (in the case of agreements or instruments) by waiver or consent and (in the case of statutes) by succession of comparable successor statutes and
references to all attachments thereto and instruments incorporated therein. Each of the parties has participated in the drafting and negotiation of this Agreement. If an ambiguity or question of intent or interpretation arises, this Agreement must
be construed as if it is drafted by all the parties, and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of authorship of any of the provisions of this Agreement. 

Section 5.13. Publication. The Shareholder hereby permits Buyer to publish and disclose in any documents or schedules required to
be filed with the SEC and any other disclosures or filings required by applicable Requirements of Law the Shareholder’s identity and ownership of the Shareholder’s Parent Shares and the nature of the Shareholder’s commitments pursuant
to this Agreement. 
 Section 5.14. No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Buyer
any direct or indirect ownership or incidence of ownership of or with respect to any Parent Shares and all ownership and economic benefits of and relating to the Parent Shares shall remain vested in and belong to the applicable Shareholder. Except
as otherwise provided herein, Buyer shall not have any authority to direct any Shareholder in the voting or disposition of any Parent Shares. For the avoidance of doubt, the Shareholder shall be entitled to any dividends or other distributions
declared by Parent with respect to the Shareholder’s Parent Shares. 
 [Signature Page to Follow] 

 

  
 9 

 Execution Copy 

Private & Confidential 
  

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the date first above written. 

 

			
	Buyer:
	
	        Ardi Bidco Ltd.
		
	        By:	 	 /s/ Shayla Kasuto Harlev

	        Name:	 	 Shayla Kasuto Harlev,
 acting solely in her

capacity as power of attorney

  
 [Signature Page to
Support Agreement] 

 Execution Copy 

Private & Confidential 
  

 

	
	Shareholder:
	
	 /s/ Camille I. Farhat

	Camille I. Farhat

  
 [Signature Page to
Support Agreement] 

 Execution Copy 

Private & Confidential 
  

SCHEDULE A 
  

									
	 Name and Address of Shareholder
	  	Number of
shares of
Common
Stock	 	  	Number of
shares of
Preferred
Stock	 
	 Camille I. Farhat

520 Lake Cook Road

Suite 315

Deerfield, IL 60015
	  	 	1,093,434	 	  	 	0	 

  
 [Schedule A to Support
Agreement] 

 Execution Copy 

Private & Confidential 
  

SCHEDULE B 
  

									
	 Name and Address of Shareholder
	  	Number of
Options	 	  	Number of
shares of
Restricted
Stock	 
	 Camille I. Farhat

520 Lake Cook Road

Suite 315

Deerfield, IL 60015
	  	 	1,950,000	 	  	 	0	 

  
 [Schedule B to Support
Agreement]EX-10.4

 Exhibit 10.4 

Execution Copy 
 EQUITY
COMMITMENT LETTER 
 Montagu V L.P, 

Montagu V (US) L.P., 

Montagu V (Non-US) L.P., 

and Montagu V (D) L.P. 

c/o 
 2 More London Riverside, 

London 
 SE1 2AP 

January 13, 2020 
  

	TO:	 Ardi BidCo Ltd. 

c/o Weil, Gotshal & Manges LLP 

100 Federal Street, 34th Floor 

Boston, MA 02110-1800 
 Attention:
Shayla Kasuto Harlev 
 Ladies and Gentlemen: 
 In connection
with that certain Equity Purchase Agreement, dated as of the date hereof, by and among Ardi BidCo Ltd., a Delaware corporation (the “Buyer”), and RTI Surgical Holdings, Inc., a Delaware corporation (the “Parent”)
(as amended, amended and restated, supplemented, or otherwise modified from time to time, the “Agreement”), subject to the terms and conditions herein, the undersigned private equity investment funds, (the
“Investors”) are pleased to offer this commitment to purchase, directly or indirectly, through one or more parent companies of Buyer or otherwise, securities of Buyer subject to the terms and conditions herein, for an aggregate
purchase price in cash not to exceed $480,000,000 (as such amount may be reduced in accordance with Section 1 hereof), that is sufficient, after taking into account the proceeds of other cash sources (including the cash of
Parent) available to Buyer, to permit Buyer (x) to consummate the transactions contemplated by the Agreement (collectively, the “Transaction”) on the terms and subject to the conditions set forth therein, (y) to satisfy
Buyer’s obligation to pay the aggregate amount payable pursuant to and in accordance with Section 4.2 of the Agreement and any other amounts payable by Buyer pursuant to the terms of the Transaction Agreements and (z) to pay related
fees and expenses pursuant to and in accordance with the Agreement (such amount, the “Aggregate Commitment”). Capitalized terms used but not otherwise defined herein shall have the respective meanings given to them in the Agreement.

 1. Commitment. Subject to the terms and conditions hereof, each Investor hereby irrevocably commits and agrees severally (and not
jointly or jointly and severally) to acquire, directly or indirectly, equity and/or debt securities of the Buyer for an aggregate purchase price in cash not to exceed an amount equal the percentage of the Aggregate Commitment set forth opposite such
Investor’s name on Schedule A hereto, multiplied by the 
  

 Aggregate Commitment (such amount with respect to each Investor is such Investor’s “Maximum
Investor Commitment”). For the avoidance of doubt, the issuer and type of securities shall be determined by each Investor in its sole discretion. Notwithstanding anything to the contrary in this letter, (a) to the extent the Buyer is
relieved, in whole or in part, for any reason of its payment obligations in connection with the Closing under the Agreement, the corresponding obligation of the Investors to fund their respective Maximum Investor Commitment hereunder shall be
similarly relieved or reduced on a pro rata basis (and without duplication), and (b) each Investor is entitled to any and all rights, remedies, set-offs and defenses that the Buyer could assert
pursuant to the terms of the Agreement or pursuant to any applicable Laws in connection therewith. The proceeds from the Investors’ investment up to the Aggregate Commitment shall be used for funding the aggregate amount payable pursuant to and
in accordance with Section 4.2 of the Agreement, any other amounts payable by Buyer pursuant to the terms of the Agreement and the payment of related fees and expenses, and for no other purpose. No Investor shall be obligated to fund the
commitment evidenced hereby except in accordance with Section 2 hereof. No Investor will be under any obligation to contribute, or cause there to be contributed, pursuant to this letter, or otherwise have any obligation or liability under this
letter for, an amount in excess of such Investor’s Maximum Investor Commitment. Each Investor may allocate all or a portion of its Maximum Investor Commitment to other investors, and its Maximum Investor Commitment hereunder will be reduced
dollar for dollar by any amounts actually contributed to the Buyer, or to any Affiliate of the Buyer organized to consummate the Transaction, in each case to the extent such amounts are used (or, without duplication, available for use) in order to
satisfy the obligations of such Investor hereunder. Solely in the event that, prior to the Closing, Parent agrees, as evidenced by a writing executed by an officer of Parent, to accept Buyer’s use of a “committed funds” financing
arrangement pursuant to and in accordance with Section 6.4 of the Agreement, then the Aggregate Commitment shall be reduced by the amount of such “committed funds” financing arrangement (and the corresponding obligation of the
Investors to fund their respective Maximum Investor Commitment hereunder shall be similarly relieved or reduced on a pro rata basis (and without duplication)). 

2. Conditions Precedent. Each Investor’s obligations to fund its Maximum Investor Commitment shall be conditioned upon: 

a. the execution and delivery of the Agreement by Parent; 

b. the satisfaction or waiver of all conditions precedent to the Closing set forth in Articles IX and X of the Agreement (except those
conditions that by their nature cannot be satisfied except by actions to be taken at the Closing, provided that such conditions are actually satisfied or validly waived at the Closing, or such conditions that have not been satisfied as a result of a
breach of the Agreement by Buyer); and 
 c. the consummation of the Closing or the occurrence of the time at which the Closing would be
required to occur in accordance with Article IV of the Agreement. 

  
 -2- 

 3. No Recourse. 

a. Notwithstanding anything that may be expressed or implied in this letter to the contrary, by its acceptance hereof, Buyer acknowledges and
agrees that all claims, obligations, liabilities, causes of action, actions, or proceedings (in each case, whether in contract or in tort, at law or in equity, or pursuant to statute or otherwise) that may be based upon, in respect of, arise under,
out or by reason of, be connected with, or relate in any manner to this letter, or the negotiation, execution, performance, or breach of this letter (each, a “Claim”), including, without limitation, any representation or warranty
made in, in connection with, or an as inducement to, this letter may be made or asserted only against (and are expressly limited to) the Investors, as expressly identified in the preamble to and signature page of this letter. No Person who is not
Buyer or an Investor (including, without limitation, (i) any past, present or future director, officer, employee, incorporator, member, partner, manager, management company, stockholder, equityholder, Affiliate (other than Buyer), agent,
assignee, attorney, or representative of, and any past, present or future financial advisor or lender to (collectively “Affiliated Persons”) an Investor, and (ii) any Affiliated Persons of such Affiliated Persons (the Persons
in subclauses (i) and (ii), together with their respective successors, assigns, heirs, executors or administrators, collectively, the “Non-Parties”)) shall have any liability or
obligation in respect of any Claims. 
 b. Without limiting the generality of the foregoing, to the maximum extent explicitly permitted or
otherwise conceivable under applicable Laws, (i) Buyer hereby waives, releases and disclaims any and all Claims against all Non-Parties, including, without limitation, any Claims to avoid or disregard the
entity form of an Investor or otherwise impose any liability arising out of, relating to or in connection with a Claim on any Non-Parties, whether a Claim granted by statute or based on theories of equity,
agency, control, instrumentality, alter ego, domination, sham, single business enterprise, piercing the veil, unfairness, undercapitalization, or otherwise, and (ii) Buyer disclaims any reliance upon any
Non-Parties with respect to the performance of this letter or any representation or warranty made in, in connection with, or as an inducement to this letter. 

4. Term. The Aggregate Commitment (and each Investor’s Maximum Investor Commitment) set forth herein shall become effective on the
date and time at which the Agreement has been duly executed and delivered by all parties thereto, including, without limitation, by Buyer, whereupon this commitment letter will constitute the commitment of each Investor to provide the aforementioned
financing to Buyer on the terms and conditions set forth herein. 
 5. Termination. All obligations of each Investor arising out of or
in connection with this letter shall terminate automatically and immediately upon the earliest to occur of: (a) the consummation of the Closing (including the payment of all amounts payable by Buyer under Section 4.2 of the Agreement); (b)
the valid termination of the Agreement in accordance with its terms; and (c) the assertion by Parent or its controlled Affiliates, of any Claim against any Investor or any Non-Party (other than any Claim
by Parent as a third-party beneficiary of this letter pursuant to, and upon the terms and conditions set forth in, the proviso of the first sentence of Section 9 of this letter ). 

  
 -3- 

 6. Indemnification. 

a. Buyer agrees to indemnify and to hold harmless each Investor and the Non-Parties (collectively, the
“Indemnified Persons”) from and against any and all actions, suits, proceedings (including any investigations or inquiries), losses, claims, damages, liabilities or expenses of any kind or nature whatsoever that may be suffered,
incurred by or asserted against or involve the Indemnified Persons as a result of or arising out of or in any way related to the transactions described in this letter (including those resulting from any Indemnified Person’s negligence);
provided, however, that the foregoing will not apply to the extent found by a final decision of a court of competent jurisdiction to have resulted solely from the gross negligence or willful misconduct of such Indemnified Person. Buyer
further agrees to pay to or reimburse any Indemnified Person upon demand any legal or other expenses incurred by such Indemnified Person in connection with investigating, defending, or preparing to defend any such action, suit, claim or proceeding
(including any inquiry or investigation). The provisions of this Section 6 are independent of all other obligations of Buyer hereunder and shall survive termination or expiration of this letter pursuant to
Section 5 above. 
 b. BUYER HEREBY ACKNOWLEDGES THAT THE FOREGOING INDEMNITY SHALL BE APPLICABLE TO ALL CLAIMS,
LIABILITIES, LOSSES, DAMAGES OR EXPENSES THAT HAVE RESULTED FROM OR ARE ALLEGED TO HAVE RESULTED FROM THE ACTIVE OR PASSIVE OR THE SOLE, JOINT OR CONCURRENT ORDINARY NEGLIGENCE OF ANY INVESTOR OR ANY OTHER INDEMNIFIED PERSON. 

7. Assignment. Each Investor’s Maximum Investor Commitment evidenced by this letter shall be assignable by each Investor;
provided, however, that neither such assignment by such Investor nor any other assignment by such Investor shall relieve such Investor of its obligations under this letter (including such Investor’s obligation to fund its Maximum
Investor Commitment to Buyer) except by any amounts actually contributed to Buyer by payment in cash by such assignees on or before the Closing, as contemplated in Section 1 above, that are available to fund the
consummation of the Transaction at the Closing, and each Investor shall remain liable in full for any unsatisfied portion of its obligations under this letter. 

8. Entire Agreement; Amendments. This letter contains the entire understanding of the parties hereto with regard to the subject matter
contained herein or therein, and supersede all other prior representations, warranties, agreements, understandings or letters of intent between or among any of the parties hereto. This letter shall not be amended, modified or supplemented except by
a written instrument signed by an authorized representative of each of the parties hereto and Parent. Any term or provision of this letter may be waived, or the time for its performance may be extended, in writing by Parent and the party or parties
entitled to the benefit thereof. Any such waiver shall be validly and sufficiently authorized for the purposes of this letter if, as to any party, it is authorized in writing by an authorized representative of such

  
 -4- 

 
party. For this purpose, an email, even if it includes a signature block of the sender, shall not be considered a “writing”, although an electronic copy of a document duly executed on
behalf of a party hereto shall be considered a “writing” even if transmitted by email or other electronic means. The failure of any party hereto to enforce at any time any provision of this letter shall not be construed to be a waiver of
such provision, nor in any way to affect the validity of this letter or any part hereof or the right of any party thereafter to enforce each and every such provision. No waiver of any breach of this letter shall be held to constitute a waiver of any
other or subsequent breach. 
 9. Third Party Beneficiary. Except for the Non-Parties
(pursuant to Section 3 hereof), the Indemnified Persons (pursuant to Section 6 hereof) and Parent (pursuant to this Section 9), no Person other than Buyer shall be
entitled to rely upon or enforce this letter, and this letter shall be binding upon and inure solely to the benefit of each party hereto and nothing herein or in any other agreement (including, without limitation, the Agreement), express or implied,
is intended to or shall confer upon any other Person any rights, benefits or remedies whatsoever under or by reason of this letter; provided, however, that, subject to the terms and conditions set forth in this letter and in
Section 13.12 of the Agreement, Parent is hereby made an express third party beneficiary of this letter and may enforce this letter solely for the purpose of (and for no other purpose, including, without limitation, any claim for damages)
seeking specific performance of Buyer’s right to cause an Investor to fund its portion of the Aggregate Commitment (solely to the extent that Buyer is permitted to enforce the Aggregate Commitment (and each Investor’s Maximum Investor
Commitment) pursuant to the terms and conditions of this letter and Parent is permitted to obtain specific performance against Buyer pursuant to Section 13.12 of the Agreement). In furtherance of the foregoing, no creditor of Buyer or any of
its Affiliates, or any Person claiming by, through or on behalf of any of them, shall have any right to enforce this letter or to cause Buyer or any other Person to seek to enforce this letter. For the avoidance of doubt, in no event shall Parent
(except solely pursuant to the first sentence of this Section 9), any of its stockholders or equityholders or any of its or their Affiliates, or any Person claiming by, through or on behalf of any of them, be entitled to
enforce this letter, and Parent (except solely pursuant to the first sentence of this Section 9) and the stockholders and equityholders of any of the foregoing and its or their Affiliates, and any Person claiming by,
through or on behalf of any of them, are expressly disclaimed as third-party beneficiaries hereof. Each Investor (i) waives (x) any defenses in any action for specific performance, including, without limitation, the defense that a remedy at law
would be adequate and (y) any requirement under any law to post a bond or other security as a prerequisite to obtaining equitable relief and (ii) agrees not to assert that a remedy of specific performance or other equitable relief is
unenforceable, invalid, contrary to law or equity for any reason. Without limiting, and subject in all respects to, Buyer’s rights against Parent under the Agreement, Buyer agrees that it will not take any actions that would, or would
reasonably be expected to, interfere with or delay Parent’s exercise of its rights as a third party beneficiary of this letter agreement pursuant to this Section 9. 

  
 -5- 

 10. Governing Law, Submission to Jurisdiction. This letter and all claims or causes
of action (whether in contract, tort or statute) that may be based upon, arise out of or relate to this letter or the negotiation, execution or performance of this letter (including any claim or cause of action based upon, arising out of or related
to any representation or warranty made in or in connection with this letter or as an inducement to enter into this letter), shall be governed by and enforced in accordance with the laws of the State of Delaware applicable to contracts made and
performed in such State, without giving effect to any laws of the State of Delaware that would require or permit the application of the laws of any other jurisdiction. The parties hereby irrevocably submit to the exclusive jurisdiction of the Court
of Chancery of the State of Delaware (or in the event, but only in the event, that such court does not have subject matter jurisdiction over such action or proceeding, the Superior Court of the State of Delaware (Complex Commercial Division) or, if
subject matter jurisdiction over the action or proceeding is vested exclusively in the federal courts of the United States of America, the United States District Court for the District of Delaware) over any dispute based on, arising out of or
relating to this letter or any of the transactions contemplated hereby and each party hereby irrevocably agrees that all claims in respect of such dispute or any suit, action or proceeding related thereto may be heard and determined in such courts.
The parties hereby irrevocably waive, to the fullest extent permitted by applicable law, any objection which they may now or hereafter have to the laying of venue of any such dispute brought in such court or any defense of inconvenient forum for the
maintenance of such dispute. Each of the parties hereto agrees that a judgment in any such dispute may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law. Each of the parties hereby consents to process
being served by any party to this letter in any suit, action or proceeding by the delivery of a copy thereof in accordance with the provisions of Section 10. 

11. Waiver of Jury Trial. Each party hereto waives the right to a trial by jury in any Proceeding in connection with or relating to this
letter. Each party hereto (a) certifies that no representative, agent or attorney of any other party has represented, expressly or otherwise, that such other party would not, in the event of a dispute, seek to enforce the foregoing waiver, and
(b) acknowledges that it and the other parties hereto have been induced to enter into this letter and the other transaction agreements by, among other things, the mutual waivers and certifications in this Section 11.

 12. Severability. Wherever possible, each provision hereof shall be interpreted in such manner as to be effective and valid under
applicable law, but in case any one or more of the provisions contained herein shall, for any reason, be held to be invalid, illegal or unenforceable in any respect, such provision shall be ineffective to the extent, but only to the extent, of such
invalidity, illegality or unenforceability without invalidating the remainder of such invalid, illegal or unenforceable provision or provisions or any other provisions hereof, unless such a construction would be unreasonable; provided,
however, that this letter may not be enforced without giving effect to the provisions in Sections 1, 2, 4, 6 and 7 hereof. No party hereto shall assert, and each party hereto shall cause its
respective Affiliates not to assert, that this letter or any part hereof is invalid, illegal or unenforceable. 
 13. Execution in
Counterparts. This letter may be executed in one or more counterparts, each of which shall be considered an original instrument, but all of which shall be considered one and the same agreement, and shall become binding when one or more
counterparts have been signed by each of the parties hereto and delivered to Parent and Buyer. 

  
 -6- 

 14. Confidentiality. This letter shall be treated as strictly confidential and is
being provided to Buyer solely in connection with the Agreement and the Transaction. This letter may not be used, circulated, quoted or otherwise referred to in any document, except with the written consent of each Investor. Notwithstanding the
foregoing, this letter may be provided to Parent and each of its representatives and advisors who have been directed to treat this letter as confidential, and on the condition that any such recipient agrees to treat, and shall direct its Affiliates,
representatives and advisors to so treat, this letter as confidential. 
 15. Representations and Warranties. Each Investor hereby
represents and warrants that (a) it has the requisite corporate or limited partnership, as applicable, power and authority to execute, deliver and perform this letter, (b) the execution, delivery and performance of this letter by it has
been duly and validly authorized and approved by all necessary limited partnership action by it, (c) this letter has been duly and validly executed and delivered by it and constitutes a valid and legally binding obligation of it, enforceable
against it in accordance with the terms of this letter, (d) its Maximum Investor Commitment is less than the maximum amount that it is permitted to invest in any one portfolio investment pursuant to the terms of its constituent documents or
otherwise, (e) it has uncalled capital commitments or otherwise has available funds in excess of the sum of its Maximum Investor Commitment hereunder plus the aggregate amount of all other commitments and obligations it currently has
outstanding and that all funds necessary for Investor to fulfill its obligations under this letter agreement in full shall be available to Investor for so long as this letter agreement shall remain in effect pursuant to its terms and (f) the
execution, delivery and performance by the undersigned of this letter do not (i) violate the organizational documents of the undersigned or (ii) violate any applicable Law or judgment binding on the undersigned. 

[THE REMAINDER OF PAGE INTENTIONALLY LEFT
BLANK – SIGNATURE PAGES FOLLOW.] 
  

  
 -7- 

 If the foregoing is acceptable to you, please sign and return a copy of this letter. 

 

							
		 	            	 	Very truly yours,
			
		 		 	Montagu V LP
		 		 	acting by its manager Montagu Private Equity LLP, acting by
				
		 		 	By:	 	 /s/ Graham Hislop

		 		 		 	Name: Graham Hislop
		 		 		 	Title: Finance Director
			
		 		 	Montagu V (Non-US) LP
		 		 	acting by its manager Montagu Private Equity LLP, acting by
				
		 		 	By:	 	 /s/ Graham Hislop

		 		 		 	Name: Graham Hislop
		 		 		 	Title: Finance Director
			
		 		 	Montagu V (US) LP
		 		 	acting by its manager Montagu Private Equity LLP, acting by
				
		 		 	By:	 	 /s/ Graham Hislop

		 		 		 	Name: Graham Hislop
		 		 		 	Title: Finance Director
			
		 		 	Montagu V (D) LP
		 		 	acting by its manager Montagu Private Equity LLP, acting by
				
		 		 	By:	 	 /s/ Graham Hislop

		 		 		 	Name: Graham Hislop
		 		 		 	Title: Finance Director

 
	
	Accepted and Acknowledged:
	
	ARDI BIDCO LTD.

  

			
	By:	 	 /s/ Shayla Kasuto Harlev

		 	Shayla Kasuto Harlev,
		 	solely in her capacity as attorney in fact

 Schedule A 
  

									
	 Investor
	  	Pro Rata Percentage	 	 	Maximum Investor
Commitment	 
	 Montagu V L.P
	  	 	59.945	% 	 	$	287,736,000	 
	 Montagu V (Non-US) L.P.
	  	 	24.273	% 	 	$	116,510,400	 
	 Montagu V (US) L.P.
	  	 	12.145	% 	 	$	58,296,000	 
	 Montagu V (D) L.P.
	  	 	3.637	% 	 	$	17,457,600	 
		  	 	100	% 	 	$	480,000,000

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