exv10w2






Exhibit 10.2




TAX RECEIVABLE AGREEMENT




by and among



AURORA DIAGNOSTICS, INC.,



THE SUMMIT FUNDS NAMED HEREIN,



THE SUMMIT GPs NAMED HEREIN,



THE SB SHAREHOLDERS NAMED HEREIN,



THE KB SHAREHOLDERS NAMED HEREIN,



and



THE MANAGEMENT INVESTORS NAMED HEREIN,



dated as of ____________, 2010



 









 





TAX RECEIVABLE AGREEMENT




     This TAX RECEIVABLE AGREEMENT (as amended from time to time, this “Agreement”), dated as of
________, 2010, is hereby entered into by and among Aurora Diagnostics, Inc., a Delaware
corporation (the “Corporation”); Summit Ventures VI-A, L.P., Summit VI Advisors Fund, L.P., Summit
VI Entrepreneurs Fund, L.P., Summit Investors VI, L.P., and Summit Partners Private Equity Fund
VII-A, L.P., each a Delaware limited partnership (collectively, the “Summit Funds”); Summit
Partners VI (GP), L.P. and Summit Partners PE VII, L.P., each a Delaware limited partnership
(collectively, the “Summit GPs”); Summit Ventures VI-B, L.P. and Summit Partners Private Equity
Fund VII-B, L.P., each a Delaware limited partnership (collectively, the “SB Shareholders”); KRG
Capital Fund IV, L.P., a Delaware limited partnership, KRG Capital Fund IV-A, L.P., a Delaware
partnership, KRG Capital Fund IV (FF), L.P., a Delaware partnership, KRG Capital Fund IV (PA),
L.P., a Delaware limited partnership, and KRG Co-Investment, L.L.C., a Delaware limited liability
company (collectively, the “KB Shareholders”); and James C. New, Martin J. Stefanelli, Christopher
Jahnle, Kirk A. Rebane, Fred Ferrara, Greg Marsh, Michael Null, Michael Grattendick and Deanna
Shackley (collectively, the “Management Investors”). Capitalized terms used and not otherwise
defined herein have the meanings set forth in Article I.



RECITALS



     WHEREAS, on the date hereof but prior to execution of this Agreement, the Summit Funds, the
Summit GPs, the SB Shareholders, the KB Shareholders, and the Management Investors (collectively,
the “Members”) directly or indirectly held membership interests (the “Units”) in Aurora Diagnostics
Holdings, LLC, a Delaware limited liability company formed on May 22, 2006 (“Aurora”), which was
classified as a partnership for United States federal income tax purposes;



     WHEREAS, the Summit Blockers and the KRG Blocker merged with and into the Corporation, and
then Aurora merged with and into the Corporation, with the Corporation surviving, under a series of
transactions pursuant to an overall integrated plan (the “Merger”);



     WHEREAS, as of closing of the Merger (“Closing Date”), Aurora and certain of its direct and
indirect subsidiaries had tax basis in amortizable goodwill and other intangible assets described
in Section 197 of the Code (“Closing Date Tax Basis”);



     WHEREAS, as a result of the Merger, the Corporation may utilize the amortization,
depreciation, and/or other recovery of cost basis for Tax purposes, including the reduction of
taxable gain on sale or disposition of property, attributable to the Closing Date Tax Basis to
affect the income, gain, loss, expense and other Tax items of the Corporation and result in Tax
benefits and savings (the “Basis Recovery”);



     WHEREAS, in connection with the Merger, the Summit Funds, the Summit GPs, the SB Shareholders,
the KB Shareholders, and the Management Investors are receiving common stock in the Corporation
(“Common Shares”) and rights to receive payments from the Corporation for Tax benefits or savings
arising out of Basis Recovery and related basis adjustments (“TRA Rights”) as set forth herein;



     WHEREAS, the income, gain, loss, expense, and other Tax items of the Corporation will be
affected by (i) Basis Recovery, (ii) Boot Basis Adjustments (as defined below) and (iii) any
interest imputed under Section 1272, 1274, 483 or other provision of the Code and any similar
provision of state and local tax law with respect to the Corporation’s payment obligations under
this Agreement and the Merger (the “Imputed Interest”); and



 









 





     WHEREAS, the parties to this Agreement desire to make certain arrangements with respect to the
actual or deemed effect of Basis Recovery, Boot Basis Adjustments, and Imputed Interest on the
liability of the Corporation for Taxes.



     NOW, THEREFORE, in consideration of the foregoing and the respective covenants and agreements
set forth herein, and intending to be legally bound hereby, the parties hereto agree as follows:



ARTICLE I



DEFINITIONS



      Section 1.1 Definitions. As used in this Agreement, the terms set forth in
this Article I shall have the following meanings (such meanings to be equally applicable to both
the singular and plural forms of the terms defined).



     “Affiliate” means, with respect to any Person, any other Person that directly or
indirectly, through one or more intermediaries, Controls, is Controlled by, or is under common
Control with, such first Person.



     “Affiliated Institution” means with respect to any Indemnified Person, any investment
fund, institutional investor or other financial intermediary with which such Indemnified Person is
Affiliated or of which such Indemnified Person is a member, partner or employee.



     “Agreed Rate” means LIBOR plus 100 basis points.



     “Agreement” is defined in the Preamble of this Agreement.



     “Amended Schedule” is defined in Section 2.3(b) of this Agreement.



     “Aurora” has the meaning set forth in the Recitals to this Agreement.



     “Basis Recovery” has the meaning set forth in the Recitals to this Agreement.



     “Beneficial Owner” means, with respect to a security, any Person who directly or
indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or
shares: (i) voting power, which includes the power to vote, or to direct the voting of, such
security and/or (ii) investment power, which includes the power to dispose of, or to direct the
disposition of, such security. The terms “Beneficially Own” and “Beneficial
Ownership” shall have correlative meanings.



     “Board” means the Board of Directors of the Corporation.



     “Boot Basis Adjustments” means the adjustment to the tax basis of assets, held
directly or indirectly by the Corporation, under Section 362 of the Code and, in each case,
comparable sections of state, local and foreign tax laws, as a result of the payments made to the
Members pursuant to this Agreement.



     “Business Day” means Monday through Friday of each week, except that a legal holiday
recognized as such by the government of the United States of America or the State of New York shall
not be regarded as a Business Day.



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     “Catch-Up Payment” has the meaning set forth in Section 3.1(a) of this Agreement.



     “Change of Control” means the occurrence of any of the following events:




     (i) any Person or any group of Persons acting together which would constitute a “group”
for purposes of Section 13(d) of the Securities and Exchange Act of 1934, or any successor
provisions thereto, excluding a group of Persons which includes one or more Affiliates of
Summit Partners, L.P., a Delaware limited partnership, and one or more Affiliates of the KB
Shareholders, is or becomes the Beneficial Owner, directly or indirectly, of securities of
the Corporation representing more than 50% of the combined voting power of the
Corporation’s, as applicable, then outstanding voting securities; or




     (ii) the following individuals cease for any reason to constitute a majority of the
number of directors of the Corporation then serving: individuals who, on the Closing Date,
constitute the Board and any new director whose appointment or election by the Board or
nomination for election by the Corporation’s shareholders was approved or recommended by a
vote of at least two-thirds (2/3) of the directors then still in office who either were
directors on the Closing Date or whose appointment, election or nomination for election was
previously so approved or recommended by the directors referred to in this clause (ii); or




     (iii) there is consummated a merger or consolidation of the Corporation with any other
corporation or other entity, and, immediately after the consummation of such merger or
consolidation, either (x) the Board immediately prior to the merger or consolidation does
not constitute at least a majority of the board of directors of the company surviving the
merger or, if the surviving company is a Subsidiary, the ultimate parent thereof, or (y) the
voting securities of the Corporation immediately prior to such merger or consolidation do
not continue to represent or are not converted into more than 50% of the combined voting
power of the then outstanding voting securities of the Person resulting from such merger or
consolidation or, if the surviving company is a Subsidiary, the ultimate parent thereof; or




     (iv) the shareholders of the Corporation approve a plan of complete liquidation or
dissolution of the Corporation or there is consummated an agreement or series of related
agreements for the sale or other disposition, directly or indirectly, by the Corporation of
all or substantially all of the Corporation’s assets, other than such sale or other
disposition by the Corporation of all or substantially all of the Corporation’s assets to an
entity, at least 50% of the combined voting power of the voting securities of which are
owned by shareholders of the Corporation in substantially the same proportions as their
ownership of the Corporation immediately prior to such sale.


Notwithstanding the foregoing, except with respect to clause (ii) and clause (iii)(x) above, a
“Change of Control” shall not be deemed to have occurred by virtue of the consummation of any
transaction or series of integrated transactions immediately following which the record holders of
the shares of the Corporation immediately prior to such transaction or series of transactions
continue to have substantially the same proportionate ownership in, and own substantially all of
the shares of, an entity which owns all or substantially all of the assets of the Corporation
immediately following such transaction or series of transactions.




     “Closing Date” has the meaning set forth in the Recitals to this Agreement.



     “Closing Date Basis Recovery Letter” is defined in Section 2.1 of this Agreement.



     “Closing Date Tax Basis” has the meaning set forth in the Recitals to this Agreement.



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     “Code” means the Internal Revenue Code of 1986, as amended.



     “Committee” means the committee established pursuant to Section 7.13.



     “Common Shares” has the meaning set forth in the Recitals to this Agreement.



     “Control” means the possession, direct or indirect, of the power to direct or cause
the direction of the management and policies of a Person, whether through ownership of voting
securities, by contract or otherwise.



     “Corporation” is defined in the Preamble of this Agreement.



     “Corporation Return” means the federal and/or state and/or local and/or foreign Tax
Return, as applicable, of the Corporation (or, as applicable, of the consolidated, combined or
unitary group in which the Corporation is included) filed with respect to Taxes of any Taxable
Year.



     “Cumulative Net Realized Tax Benefit” for a Taxable Year means the cumulative amount
(but not less than zero) of Realized Tax Benefits for all Taxable Years of the Corporation, up to
and including such Taxable Year, net of the cumulative amount of Realized Tax Detriments for the
same period. The Realized Tax Benefit and Realized Tax Detriment for each Taxable Year shall be
determined based on the most recent Tax Benefit Schedule or Amended Schedule, if any, in existence
at the time of such determination.



     “Default Rate” means LIBOR plus 500 basis points.



     “Determination” has the meaning ascribed to such term in Section 1313(a) of the Code
or similar provision of state, local or foreign tax law, as applicable, or any other event
(including the execution of IRS Form 870-AD) that finally and conclusively establishes the amount
of any liability for Tax.



     “Dispute” is defined in Section 7.8(a) of this Agreement.



     “Early Termination Date” means the date of an Early Termination Notice for purposes of
determining the Early Termination Payment.



     “Early Termination Effective Date” is defined in Section 4.2 of this Agreement.



     “Early Termination Notice” is defined in Section 4.2 of this Agreement.



     “Early Termination Payment” is defined in Section 4.3(b) of this Agreement.



     “Early Termination Rate” means the lesser of (i) 6.5% per annum, compounded annually,
and (ii) LIBOR plus 100 basis points.



     “Early Termination Schedule” is defined in Section 4.2 of this Agreement.



     “Expert” is defined in Section 7.9(a) of this Agreement.



     “Hypothetical Tax Liability” means, with respect to any Taxable Year, the liability
for Taxes of the Corporation or the other members of the consolidated, combined, or unitary group
of which the Corporation is a member, in each case using the same methods, elections, conventions
and similar practices used on the relevant Corporation Return, but (i) excluding any deduction
attributable to Basis Recovery as reflected on the Closing Date Basis Recovery Letter, including
amendments, (ii) after applying clause (i), using the Non-Stepped Up Tax Basis for Boot Basis
Adjustments consistent (other than in the first year of this Agreement) with the prior year’s Tax
Benefit Schedule, including



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amendments, and (iii) excluding any deduction attributable to Imputed Interest for the Taxable
Year. For the avoidance of doubt, Hypothetical Tax Liability shall be determined without taking
into account the carryover or carryback of any Tax item (or portions thereof) that is attributable
to Basis Recovery, Boot Basis Adjustments or Imputed Interest.




     “Imputed Interest” has the meaning set forth in the Recitals to this Agreement.



     “Independent Director” means any member of the Board who is not affiliated with any of
the principal stockholders of the Corporation and who is neither a current officer nor a former
officer of the Corporation or any of its Subsidiaries.



     “Interest Amount” has the meaning set forth in Section 3.1(b) of this Agreement.



     “IRS” means the United States Internal Revenue Service.



     “KB Shareholders” is defined in the Preamble of this Agreement.



     “KRG Blocker” means KRG Aurora Blocker, Inc., a Delaware corporation.



     “KRG Representative” is defined in Section 7.13 of this Agreement.



     “LIBOR” means during any period, an interest rate per annum equal to the one-year
LIBOR reported, on the date two days prior to the first day of such period, on the Telerate Page
3750 (or if such screen shall cease to be publicly available, as reported on Reuters Screen page
“LIBOR01” or by any other publicly available source of such market rate) for London interbank
offered rates for United States dollar deposits for such period.



     “Management Investors” is defined in the Preamble of this Agreement.



     “Management Representative” is defined in Section 7.13 of this Agreement.



     “Material Objection Notice” is defined in Section 4.2 of this Agreement.



     “Members” has the meaning set forth in the Recitals to this Agreement and shall
include any assignee of all or part of any Member’s interest hereunder to the extent written notice
of such assignment has been provided to the Corporation.



     “Merger” has the meaning set forth in the Recitals to this Agreement.



     “Net Tax Benefit” has the meaning set forth in Section 3.1(b) of this Agreement.



     “Non-Stepped Up Tax Basis” means the Tax basis that the assets held directly or
indirectly by the Corporation (or any other member of the consolidated, combined or unitary group
of which the Corporation is a member) would have had if no Boot Basis Adjustments had been made.



     “Objection Notice” is defined in Section 2.3(a) of this Agreement.



     “Paid in Full” means, with respect to the payment of any Senior Obligations, the
payment in full, in cash, of all amounts outstanding (and, for the avoidance of doubt, excluding
any contingent obligations) under the Senior Obligations, whether due and payable at such time, and
the complete termination of any revolving commitments, letter of credit commitments and other
commitments to make extensions of credit pursuant to, or in respect of, any Senior Obligations.



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     “Payment Date” means any date on which a payment is required to be made pursuant to
this Agreement.



     “Percentage” means, with respect to each Member, the percentage set forth opposite
such Member’s name on the Member Percentage Schedule hereto.



     “Person” means any individual, corporation, firm, partnership, joint venture, limited
liability company, estate, trust, business association, organization, governmental entity or other
entity.



     “Qualified Tax Advisor” means Alston & Bird LLP, Kirkland & Ellis LLP, McGladrey &
Pullen, LLP or any other law or accounting firm that is nationally recognized as being expert in
Tax matters and that is reasonably acceptable to the Corporation.



     “Realized Tax Benefit” means, for a Taxable Year, the excess, if any, of the
Hypothetical Tax Liability over the actual liability for Taxes imposed on the Corporation or the
other members of the consolidated, combined or unitary group of which the Corporation is a member
for such Taxable Year. If all or a portion of the actual liability for such Taxes for the Taxable
Year arises as a result of an audit by a Taxing Authority of any Taxable Year, such liability shall
not be included in determining the Realized Tax Benefit unless and until there has been a
Determination.



     “Realized Tax Detriment” means, for a Taxable Year, the excess, if any, of the actual
liability for Taxes imposed on the Corporation or the other members of the consolidated, combined
or unitary group of which the Corporation is a member for such Taxable Year, over the Hypothetical
Tax Liability for such Taxable Year. If all or a portion of the actual liability for such Taxes for
the Taxable Year arises as a result of an audit by a Taxing Authority of any Taxable Year, such
liability shall not be included in determining the Realized Tax Detriment unless and until there
has been a Determination.



     “Reconciliation Dispute” is defined in Section 7.9(a) of this Agreement.



     “Reconciliation Procedures” is defined in Section 2.3(a) of this Agreement.



     “Regular Payment” has the meaning set forth in Section 3.1(b) of this Agreement.



     “Representative” means a current member of the Committee.



     “SB Shareholders” is defined in the Preamble of this Agreement.



     “Schedule” means any of the following: (i) the Closing Date Basis Recovery Letter,
(ii) a Tax Benefit Schedule, or (iii) the Early Termination Schedule.



     “Senior Obligations” is defined in Section 5.1 of this Agreement.



     “Subsidiaries” means, with respect to any Person, as of any date of determination, any
other Person as to which such Person, owns, directly or indirectly, or otherwise controls more than
50% of the voting power or other similar interests or the sole general partner interest or managing
member or similar interest of such Person.



     “Subsidiary Stock” means any stock or other equity interest in any subsidiary entity
of the Corporation that is treated as a corporation for United States federal income tax purposes.



     “Summit Blockers” means SV VI-B Aurora Blocker Corp. and SPPE VII-B Aurora Blocker
Corp., each a Delaware corporation.



     “Summit Funds” is defined in the Preamble of this Agreement.



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     “Summit GPs” is defined in the Preamble of this Agreement.



     “Summit Representative” is defined in Section 7.13 of this Agreement.



     “Tax Benefit Payment” is defined in Section 3.1(b) of this Agreement.



     “Tax Benefit Schedule” is defined in Section 2.2(a) of this Agreement.



     “Tax Return” means any return, declaration, report or similar statement filed or
required to be filed with respect to Taxes (including any attached schedules), including, without
limitation, any information return, claim for refund, amended return and declaration of estimated
Tax.



     “Taxable Year” means a taxable year of the Corporation as defined in Section 441(b) of
the Code or comparable section of state, local or foreign tax law, as applicable (and, therefore,
for the avoidance of doubt, may include a period of less than 12 months for which a Tax Return is
made), ending on or after the Closing Date.



     “Taxes” means any and all United States federal, state, local and foreign taxes,
assessments or similar charges that are based on or measured with respect to net income or profits,
and any interest or penalties related to such Taxes.



     “Taxing Authority” means any domestic, federal, national, state, county or municipal
or other local government, any subdivision, agency, commission or authority thereof, or any
quasi-governmental body exercising any taxing authority or any other authority exercising Tax
regulatory authority.



     “TRA Rights” has the meaning set forth in the Recitals to this Agreement.



     “Treasury Regulations” means the final, temporary and proposed regulations under the
Code promulgated from time to time (including corresponding provisions and succeeding provisions)
as in effect for the relevant taxable period.



     “Units” has the meaning set forth in the Recitals to this Agreement.



     “Valuation Assumptions” means, as of an Early Termination Date, the assumptions that
(1) in each Taxable Year ending on or after such Early Termination Date, the Corporation will have
taxable income sufficient to fully utilize the deductions arising from Basis Recovery, Boot Basis
Adjustments and the Imputed Interest during such Taxable Year or future Taxable Years (including,
for the avoidance of doubt, Boot Basis Adjustments and Imputed Interest that would result from
future Tax Benefit Payments that would be paid in accordance with the Valuation Assumptions) in
which such deductions would become available, (2) the United States federal income tax rates and
state, local and foreign income tax rates that will be in effect for each such Taxable Year will be
those specified for each such Taxable Year by the Code and other law as in effect on the Early
Termination Date, (3) any loss carryovers generated by Basis Recovery, any Boot Basis Adjustment or
Imputed Interest and available as of the date of the Early Termination Schedule will be utilized by
the Corporation in the earliest possible Taxable Year permitted by the Code and Treasury
Regulations from the date of the Early Termination Schedule, including the Taxable Year that
includes the date of the Early Termination Schedule, (4) any non-amortizable assets (other than any
Subsidiary Stock) will be disposed of on the fifteenth anniversary of the applicable Boot Basis
Adjustment; provided, that in the event of a Change of Control, such non-amortizable assets
shall be deemed disposed of at the time of sale of the relevant asset (if earlier than such
fifteenth anniversary), and (5) any Subsidiary Stock will be deemed never to be disposed of;
provided, that if (i) the Committee delivers to the Corporation a written opinion of a
Qualified Tax Advisor to the effect that as a result of a certain transaction (or series of
transactions), it is more likely than not that the tax basis in the amortizable or depreciable
assets of Aurora that are acquired by the Corporation in the



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Merger will be increased by reference to the tax basis in such Subsidiary Stock and the tax
basis in such Subsidiary Stock will decrease accordingly, and (ii) the Corporation determines that
it is commercially reasonable to effectuate such transaction (or series of transactions), then the
Valuation Assumptions will take into account such increased tax basis in the amortizable or
depreciable assets of Aurora that are acquired by the Corporation in the Merger.




ARTICLE II



DETERMINATION OF CERTAIN REALIZED TAX BENEFITS



     Section 2.1 Closing Date Basis Recovery Letter. The letter dated as of the date of
this Agreement from the Corporation to the Members shows, in reasonable detail necessary to perform
the calculations required by this Agreement, for purposes of Taxes, estimates of (i) the Closing
Date Tax Basis, (ii) Basis Recovery, calculated in the aggregate, and (iii) the Basis Recovery
schedule, which is the period (or periods) over which the Closing Date Tax Basis is amortized,
depreciated, or otherwise recovered (the “Closing Date Basis Recovery Letter”).



     Section 2.2 Tax Benefit Schedule.



     (a) Tax Benefit Schedule. Within 90 calendar days after the filing of the United
States federal income tax return of the Corporation for any Taxable Year in which there is a
Realized Tax Benefit or Realized Tax Detriment, the Corporation shall provide to the Committee a
schedule showing, in reasonable detail, the calculation of the Realized Tax Benefit or Realized Tax
Detriment for such Taxable Year (a “Tax Benefit Schedule”), which Tax Benefit Schedule also will
include (i) the Non-Stepped-Up Tax Basis of the Corporation’s direct and indirect assets, (ii) the
Boot Basis Adjustments for such Taxable Year, calculated in the aggregate, and (iii) the period
over which the Boot Basis Adjustments will be amortizable and/or depreciable. The Tax Benefit
Schedule will become final as provided in Section 2.3(a) and may be amended as provided in Section
2.3(b) (subject to the procedures set forth in Section 2.3(b)).



     (b) Applicable Principles. The Realized Tax Benefit or Realized Tax Detriment for each
Taxable Year is intended to measure the decrease or increase in the actual liability for Taxes of
the Corporation for such Taxable Year attributable to Basis Recovery, Boot Basis Adjustments and
Imputed Interest, determined using a “with and without” methodology. For the avoidance of doubt,
the actual liability for Taxes will take into account the deduction of the portion of the Tax
Benefit Payment that must be accounted for as interest under the Code based upon the
characterization of Tax Benefit Payments as additional taxable boot payable by the Corporation.
Carryovers or carrybacks of any Tax item attributable to Basis Recovery, Boot Basis Adjustments and
Imputed Interest shall be considered to be subject to the rules of the Code and the Treasury
Regulations or the appropriate provisions of U.S. state and local income and franchise tax law, as
applicable, governing the use, limitation and expiration of carryovers or carrybacks of the
relevant type. The parties agree that (i) all Tax Benefit Payments attributable to Basis Recovery
or to Boot Basis Adjustments, other than amounts accounted for as Imputed Interest, will (A) be
treated as subsequent upward purchase price adjustments that give rise to further Boot Basis
Adjustments to the Corporation and (B) have the effect of creating additional Boot Basis
Adjustments to the Corporation in the year of payment, and (ii) as a result, such additional Boot
Basis Adjustments will be incorporated into the current year calculation and into future year
calculations, as appropriate.



     Section 2.3 Procedures, Amendments.



     (a) Procedure. Every time the Corporation delivers to the Committee an applicable
Schedule under this Agreement, including any Amended Schedule delivered pursuant to Section 2.3(b),
but



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excluding any Early Termination Schedule or amended Early Termination Schedule, the
Corporation shall also (x) deliver to the Committee schedules and work papers, as determined by the
Corporation or requested by the Committee, providing reasonable detail regarding the preparation of
the Schedule and (y) allow the Committee reasonable access at no cost to the appropriate
representatives at the Corporation, as determined by the Corporation or requested by the Committee,
in connection with a review of such Schedule. Without limiting the application of the preceding
sentence, each time the Corporation delivers to the Committee a Tax Benefit Schedule, in addition
to the Tax Benefit Schedule duly completed, the Corporation shall deliver to the Committee the
Corporation Return, the reasonably detailed calculation by the Corporation of the Hypothetical Tax
Liability, the reasonably detailed calculation by the Corporation of the actual Tax liability, as
well as any other work papers as determined by the Corporation or requested by the Committee. An
applicable Schedule or amendment thereto shall become final and binding on all parties 30 calendar
days from the first date on which the Committee has received the applicable Schedule or amendment
thereto (as well as the tax returns, calculations and work papers described in (i) and (ii) of the
preceding sentence) unless the Committee (i) within 30 calendar days after receiving an applicable
Schedule or amendment thereto (as well as the tax returns, calculations and work papers described
in (i) and (ii) of the preceding sentence), provides the Corporation with notice of a material
objection to such Schedule (“Objection Notice”) made in good faith, in which case such Schedule or
amendment thereto becomes final and binding upon agreement of the parties or conclusion of the
Reconciliation Procedures (as defined below), or (ii) provides a written waiver of such right of
any Objection Notice within the period described in clause (i) above, in which case such Schedule
or amendment thereto becomes final and binding on the date the waiver is received by the
Corporation. If the parties, for any reason, are unable to successfully resolve the issues raised
in any Objection Notice within 30 calendar days after receipt by the Corporation of an Objection
Notice, the Corporation and the Members shall employ the reconciliation procedures as described in
Section 7.9 of this Agreement (the “Reconciliation Procedures”).




     (b) Amended Schedule. The applicable Schedule for any Taxable Year may be amended from
time to time by the Corporation (i) in connection with a Determination affecting such Schedule,
(ii) to correct inaccuracies in the Schedule identified as a result of the receipt of additional
factual information relating to a Taxable Year after the date the Schedule was provided to the
Committee, (iii) to comply with the Expert’s determination under the Reconciliation Procedures,
(iv) to reflect a change in the Realized Tax Benefit or Realized Tax Detriment for such Taxable
Year attributable to a carryback or carryforward of a loss or other tax item to such Taxable Year,
(v) to reflect a change in the Realized Tax Benefit or Realized Tax Detriment for such Taxable Year
attributable to an amended Tax Return filed for such Taxable Year, or (vi) to adjust the Closing
Date Basis Recovery Letter to take into account payments made pursuant to this Agreement (any such
Schedule, an “Amended Schedule”). In addition, the Closing Date Basis Recovery Letter shall be
appropriately amended by the Committee and the Corporation to the extent that, as a result of a
Determination, the Corporation is required to calculate its Tax liability in a manner inconsistent
with the Closing Date Basis Recovery Letter.



ARTICLE III



TAX BENEFIT PAYMENTS



     Section 3.1 Payments.



     (a) Payments. Notwithstanding Section 3.1(b), but subject to the one million dollar
($1,000,000) limitation on aggregate Catch-Up Payments set forth in Section 3.1(b), no later than
April 1 of the calendar year following the calendar year in which the Merger occurs, the
Corporation shall make payments (“Catch-Up Payments”) to the Members in the amount of 20% of the
ordinary income recognized by Aurora in connection with the Merger and allocated to such Member (as
reported to such Member on the Schedule K-1 of Aurora’s Form 1065 for the year during which the
Merger occurs),




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without regard to either the amount of any Net Tax Benefit or the amount of any Tax Benefit
Payment otherwise due by such date. Within five (5) Business Days after a Tax Benefit Schedule
delivered to the Committee becomes final and binding in accordance with Section 2.3(a), the
Corporation shall pay to each Member for such Taxable Year such Member’s Tax Benefit Payment
determined pursuant to Section 3.1(b). Each such Tax Benefit Payment shall be made by wire transfer
of immediately available funds to the bank accounts previously designated by such Member to the
Corporation or, if no wire transfer instructions have been so provided, by check payable to such
Member or as otherwise agreed by the Corporation and such Member. For the avoidance of doubt, no
Tax Benefit Payment shall be made in respect of estimated tax payments, including, without
limitation, federal estimated income tax payments.




     (b) Tax Benefit Payment. A “Tax Benefit Payment” means an amount, not less than zero,
equal to the sum of the Net Tax Benefit and the Interest Amount. Tax Benefit Payments shall be made
to the Members in the following order and priority: first, a Catch-Up Payment shall be made to each
Member, until each Member has received an aggregate Catch-Up Payment (including in such aggregate
Catch-Up Payments made pursuant to the first sentence of Section 3.1(a) as well as Catch-Up
Payments described in this Section 3.1(b)) equal to 20% of the amount of such ordinary income
allocated to the Member on the Schedule K-1 of Aurora’s Form 1065 for the year during which the
Merger occurs (provided, however, that aggregate Catch-Up Payments made to all
Members pursuant to the terms of this Agreement shall not exceed one million dollars ($1,000,000));
and second, a payment (a “Regular Payment”) shall be made to each Member equal to any remaining Tax
Benefit Payment multiplied by such Member’s Percentage as set forth on the Member Percentage
Schedule attached hereto (and as updated from time to time by written notice to the Corporation by
any Member assigning in whole or in part its interests hereunder), with it being understood and
agreed that each Catch-Up Payment and each Regular Payment will include a ratable portion of each
of the Net Tax Benefit and the Interest Amount. For the avoidance of doubt, for Tax purposes, the
Interest Amount shall not be treated as interest but instead shall be treated as additional
consideration for the acquisition of Units in the Merger unless otherwise required by law. The
“Net Tax Benefit” for a Taxable Year shall be an amount equal to the excess, if any, of (i) 85% of
the Cumulative Net Realized Tax Benefit as of the end of such Taxable Year over (ii) the total
amount of Catch-Up Payments and Regular Payments previously made under this Section 3.1 (excluding
the portion of any such payments attributable to Interest Amounts); provided, for the
avoidance of doubt, that no Member shall be required to return any portion of any previously made
Tax Benefit Payment. The “Interest Amount” shall equal the interest on the Net Tax Benefit
calculated at the Agreed Rate from the due date (without extensions) for filing the Corporation
Return with respect to Taxes for such Taxable Year until the Payment Date. Notwithstanding the
foregoing, for each Taxable Year ending on or after the date of a Change of Control, all Tax
Benefit Payments shall be calculated by utilizing Valuation Assumptions (1), (3), (4) and (5),
substituting in each case the terms “the closing date of a Change of Control” for an “Early
Termination Date.”



     Section 3.2 No Duplicative Payments. It is intended that the provisions of this
Agreement will not result in duplicative payment of any amount (including interest) required under
this Agreement. The provisions of this Agreement shall be construed in the appropriate manner to
ensure such intentions are realized.



     Section 3.3 Imputed Interest. For the avoidance of doubt, for purposes of determining
the amount of Imputed Interest under this Agreement, the interest rate to be used shall be the rate
as determined under the applicable provision of the Code, and not the Agreed Rate.



ARTICLE IV



TERMINATION



     Section 4.1 Early Termination and Breach of Agreement.



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     (a) With the written approval of a majority of the Independent Directors, the Corporation may
terminate this Agreement with respect to all amounts payable to the Members at any time by paying
to each Member such Member’s Early Termination Payment; provided, however, that this
Agreement shall only terminate as to a Member upon the receipt of the Early Termination Payment by
such Member; and provided, further, that the Corporation may withdraw any notice to
execute its termination rights under this Section 4.1(a) prior to the time at which any Early
Termination Payment has been paid to any Member. Upon payment of all of the Early Termination
Payments by the Corporation, neither the Members nor the Corporation shall have any further payment
obligations under this Agreement, other than for any (a) Tax Benefit Payment agreed to by the
Corporation and the Committee as due and payable but unpaid as of the Early Termination Notice and
(b) Tax Benefit Payment due for the Taxable Year ending with or including the date of the Early
Termination Notice (except to the extent that the amount described in clause (b) is included in the
Early Termination Payment).



     (b) In the event that the Corporation breaches any of its material obligations under this
Agreement, whether as a result of failure to make any payment when due, failure to honor any other
material obligation required hereunder, or by operation of law as a result of the rejection of this
Agreement in a case commenced under the Bankruptcy Code or otherwise, then all obligations
hereunder shall be accelerated and such obligations shall be calculated as if an Early Termination
Notice had been delivered on the date of such breach and shall include, but not be limited to, (1)
the Early Termination Payment calculated as if an Early Termination Notice had been delivered on
the date of a breach, (2) any Tax Benefit Payment agreed to by the Corporation and the Committee as
due and payable but unpaid as of the date of a breach, and (3) any Tax Benefit Payment due for the
Taxable Year ending with or including the date of a breach. Notwithstanding the foregoing, in the
event that the Corporation breaches any of its material obligations under this Agreement, each
Member shall be entitled to elect to receive the amounts set forth in clauses (1), (2) and (3)
above or to seek specific performance of the terms hereof. The parties agree that the failure to
make any payment due pursuant to this Agreement within three months after the date such payment is
due shall be deemed to be a breach of a material obligation under this Agreement for all purposes
of this Agreement, and that it will not be considered to be a breach of a material obligation under
this Agreement to make a payment due pursuant to this Agreement within three months after the date
such payment is due. Notwithstanding anything in this Agreement to the contrary, it shall not be a
breach of this Agreement (but, for the avoidance of doubt, Section 5.2 shall apply as if such Tax
Benefit Payment was due) if the Corporation fails to make any Tax Benefit Payment when due (i) to
the extent that the Corporation has insufficient funds to make such payment as a result of
applicable limitations imposed by any agreement governing existing Senior Obligations (including,
without limitation, limitations on the ability of direct or indirect subsidiaries of the
Corporation to make distributions to the Corporation) or (ii) if the Board determines reasonably
and in good faith that making any such distribution or payment would result in a default under any
such agreement governing existing Senior Obligations, and the failure to make any such payment as a
result of the circumstances in clause (i) or (ii) shall not result in another breach of this
Agreement or alter the provisions of Article V and such prohibited payment shall not be paid so
long as it is restricted pursuant to clause (i) or (ii). The Corporation shall use commercially
reasonable efforts to maintain sufficient available funds for the purpose of making required
payments under this Agreement. Any interest payable on an Early Termination Payment shall only be
required to be paid upon the payment of the applicable Early Termination Payment, except to the
extent such interest is not otherwise prohibited by the applicable limitations imposed by any
agreement governing existing Senior Obligations.



     Section 4.2 Early Termination Notice. If the Corporation chooses to exercise its right
of early termination under Section 4.1 above, the Corporation shall deliver to the Committee notice
of such intention to exercise such right (“Early Termination Notice”) and a schedule (the “Early
Termination Schedule”) specifying the Corporation’s intention to exercise such right and showing in
reasonable detail the calculation of the Early Termination Payment for each of the Members. The
Early Termination



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Schedule shall become final and binding on all parties 30 calendar days from the first date on
which the Committee has received such Schedule or amendment thereto unless the Committee (i) within
30 calendar days after receiving the Early Termination Schedule, provides the Corporation with
notice of a material objection to such Schedule made in good faith (“Material Objection Notice”) or
(ii) provides a written waiver of such right of a Material Objection Notice within the period
described in clause (i) above, in which case such Schedule becomes binding on the date the waiver
is received by the Corporation (the “Early Termination Effective Date”). If the parties, for any
reason, are unable to successfully resolve the issues raised in such notice within 30 calendar days
after receipt by the Corporation of the Material Objection Notice, the Corporation and the Members
shall employ the Reconciliation Procedures.




     Section 4.3 Payment upon Early Termination.



     (a) Within three calendar days after the Early Termination Effective Date, the Corporation
shall pay to each Member an amount equal to such Member’s Early Termination Payment. Such payment
shall be made by wire transfer of immediately available funds to a bank accounts designated by such
Member or, if no wire transfer instructions have been so provided, by check payable to such Member
or as otherwise agreed by the Corporation and such Member.



     (b) Each Member’s “Early Termination Payment” shall equal the present value, discounted at the
Early Termination Rate as of the Early Termination Effective Date, of all Tax Benefit Payments that
would be required to be paid by the Corporation to such Member beginning from the Early Termination
Date and assuming that the Valuation Assumptions are applied.



ARTICLE V



SUBORDINATION AND LATE PAYMENTS



     Section 5.1 Subordination. Notwithstanding any other provision of this Agreement to
the contrary, any Tax Benefit Payment or Early Termination Payment required to be made by the
Corporation to the Members under this Agreement shall rank subordinate and junior in right of
payment to any principal, interest or other amounts due and payable in respect of any obligations
in respect of indebtedness for borrowed money of the Corporation and its Subsidiaries (“Senior
Obligations”) and shall rank pari passu with all current or future unsecured obligations that are
not Senior Obligations.



     In the event of any dissolution, winding up, liquidation, arrangement, reorganization,
adjustment, protection, relief or composition of the Corporation or its debts, whether voluntary or
involuntary, in any bankruptcy, insolvency, arrangement, reorganization, receivership, relief or
other similar case or proceeding under any Federal or State bankruptcy or similar law or upon an
assignment for the benefit of creditors or any other marshalling of the assets and liabilities of
the Corporation or otherwise, the Senior Obligations shall first be Paid in Full before the Members
shall be entitled to receive any Tax Benefit Payment or Early Termination Payment (or any interest
thereon), and any payment or distribution of any kind (whether in cash, property or securities)
that otherwise would be payable or deliverable upon or with respect to the Tax Benefit Payment or
Early Termination Payment in any such case, proceeding, assignment, marshalling or otherwise shall
be paid or delivered directly to the holders of the Senior Obligations until Paid in Full. If any
event of default has occurred and is continuing under the Senior Obligations, no Tax Benefit
Payment or Early Termination Payment (or any interest due thereon) shall be made by or on behalf of
the Corporation, and the Members shall not take or receive from the Corporation, directly or
indirectly, in cash or other property or by set off or in any other manner, including, without
limitation, from or by way of collateral, payment of all or any outstanding portion of the Tax
Benefit Payment or Early Termination Payment (or interest due thereon). All payments or
distributions received by the Members which are paid or received contrary to the provisions of this
Section 5.1 shall be received in trust for the benefit of the lenders and agents under the Senior
Obligations, shall be segregated from other funds and property held by the Members, and shall be
forthwith paid over to the Barclays Bank PLC



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(or its designated successor), as administrative agent on behalf of the lenders and other
agents under the Senior Obligations, to be applied to the payment or prepayment of the Senior
Obligations in accordance with the terms of the agreements governing the Senior Obligations.




     Section 5.2 Late Payments by the Corporation. The amount of all or any portion of any
Tax Benefit Payment or Early Termination Payment not made to the Members when due under the terms
of this Agreement shall be payable together with any interest thereon, computed at the Default Rate
and commencing from the date on which such Tax Benefit Payment or Early Termination Payment was due
and payable.



ARTICLE VI



NO DISPUTES; CONSISTENCY; COOPERATION



     Section 6.1 Participation in the Other Parties’ Tax Matters. Except as otherwise
provided herein or in any other Agreement between the Corporation and any of the Members, the
Corporation shall have full responsibility for, and sole discretion over, all Tax matters
concerning the Corporation, including without limitation the preparation, filing, or amending of
any Tax Return and defending, contesting or settling any issue pertaining to Taxes. Notwithstanding
the foregoing, the Corporation shall notify the Committee of, and keep the Committee reasonably
informed with respect to, the portion of any audit of the Corporation by a Taxing Authority the
outcome of which is reasonably expected to affect the rights and obligations of the Members under
this Agreement, and shall provide to the Committee reasonable opportunity to provide information
and other input to the Corporation and its respective advisors concerning the conduct of any such
portion of such audit.



     Section 6.2 Consistency. The Corporation and the Members agree to report and cause to
be reported for all purposes, including federal, state, local and foreign Tax purposes and
financial reporting purposes, all Tax-related items (including, without limitation, Basis Recovery,
Boot Basis Adjustments, Imputed Interest and each Tax Benefit Payment) in a manner consistent with
that specified by the Corporation in any Schedule required to be provided by or on behalf of the
Corporation under this Agreement unless otherwise required by law.



     Section 6.3 Cooperation. The Members shall (a) furnish to the Corporation in a timely
manner such information, documents, and other materials as the Corporation may reasonably request
for purposes of making any determination or computation necessary or appropriate under this
Agreement, preparing any Tax Return or contesting or defending any audit, examination, or
controversy with any Taxing Authority, including without limitation any determination or
calculation of the Boot Basis Adjustment, (b) make itself available to the Corporation to provide
explanations of documents and materials and such other information as the Corporation may
reasonably request in connection with any of the matters described in clause (a) above, and (c)
reasonably cooperate in connection with any such matter, and the Corporation shall reimburse the
Committee for any reasonable third-party costs and expenses incurred pursuant to this Section 6.3.



ARTICLE VII



MISCELLANEOUS



     Section 7.1 Notices. All notices, requests, claims, demands, and other communications
hereunder shall be in writing and shall be deemed duly given and received (a) on the date of
delivery if delivered personally or (b) on the first Business Day following the date of dispatch if
delivered by a recognized next-day courier service. All notices hereunder shall be delivered as set
forth below, or pursuant to such other instructions as may be designated in writing by the party to
receive such notice:



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If to the Corporation, the Management Investors, or the Management Representative,
to:




Aurora Diagnostics, Inc.

11025 RCA Center Drive, Suite 300

Palm Beach Gardens, Florida 33410

Attn: James C. New




with a copy (which shall not constitute notice to the Corporation, the Management
Investors, or the Management Representative) to:




Alston & Bird LLP

101 South Tryon Street, Suite 4000

Charlotte, North Carolina 28280

Attn: Lee R. Rimler, Esq.




If to the Summit Funds, the Summit GPs, the SB Shareholders, or the Summit
Representative, to:




c/o Summit Partners, L.P.

222 Berkeley Street, 18th Floor

Boston, Massachusetts 02116

Attn: Christopher J. Dean

Attn: Pete Connolly (for notice to the Summit Representative only)




with copies (which shall not constitute notice to the Summit Funds, the Summits GPs,
the SB Shareholders, or the Summit Representative) to:




Kirkland & Ellis LLP

300 North LaSalle Street

Chicago, Illinois 60654

Attn: Brian C. Van Klompenberg, P.C.




If to the KB Shareholders or the KRG Representative, to:




KRG Capital Partners, LLC

1515 Arapahoe Street, Tower One, Suite 1500

Denver, Colorado 80202

Attn: Christopher J. Bock




with copies (which shall not constitute notice to the KB Shareholders or the KRG
Representative) to:



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Hogan Lovells LLP

One Tabor Center, Suite 1500

1200 Seventeenth Street

Denver, Colorado 80202

Attn: George A. Hagerty, Esq.




If to the Committee, to the KRG Representative, Summit Representative, and
Management Representative as listed above in this Section 7.1.


Any party may change its address by giving the other party written notice of its new address in the
manner set forth above.




     Section 7.2 Counterparts. This Agreement may be executed in one or more counterparts,
all of which shall be considered one and the same agreement and shall become effective when one or
more counterparts have been signed by each of the parties and delivered to the other parties, it
being understood that all parties need not sign the same counterpart. Delivery of an executed
signature page to this Agreement by facsimile transmission or electronic transmission in portable
document format (pdf) shall be as effective as delivery of a manually signed counterpart of this
Agreement.



     Section 7.3 Entire Agreement; No Third Party Beneficiaries. This Agreement constitutes
the entire agreement and supersedes all prior agreements and understandings, both written and oral,
among the parties with respect to the subject matter hereof. This Agreement shall be binding upon
and inure solely to the benefit of each party hereto and their respective successors and permitted
assigns, and nothing in this Agreement, express or implied, is intended to or shall confer upon any
other Person any right, benefit or remedy of any nature whatsoever under or by reason of this
Agreement.



     Section 7.4 Governing Law. This Agreement shall be governed by, and construed in
accordance with, the laws of the State of New York, without regard to the conflicts of laws
principles thereof that would mandate the application of the laws of another jurisdiction.



     Section 7.5 Severability. If any term or other provision of this Agreement is invalid,
illegal, or incapable of being enforced by any law or public policy, all other terms and provisions
of this Agreement shall nevertheless remain in full force and effect so long as the economic or
legal substance of the transactions contemplated hereby is not affected in any manner materially
adverse to any party. Upon such determination that any term or other provision is invalid, illegal,
or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this
Agreement so as to effect the original intent of the parties as closely as possible in an
acceptable manner in order that the transactions contemplated hereby are consummated as originally
contemplated to the greatest extent possible.



     Section 7.6 Successors; Assignment; Amendments; Waivers.



     (a) Each of the Members may assign any of its rights under this Agreement, in whole or in
part, to any Person as long as such transferee has executed and delivered, or, in connection with
such transfer, executes and delivers, a joinder to this Agreement, in form and substance reasonably
satisfactory to the Corporation, agreeing to assume all rights and obligations of such Member under
this Agreement appurtenant to the rights being assigned, except as otherwise provided in such
joinder.



     (b) No provision of this Agreement may be amended unless such amendment is approved in writing
by the Corporation and the Committee; provided, that, the definition of Change of Control
cannot be amended without the written approval of a majority of the Independent Directors. No
provision of this



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Agreement may be waived unless such waiver is in writing and signed by the party against whom
the waiver is to be effective.




     (c) All of the terms and provisions of this Agreement shall be binding upon, shall inure to
the benefit of, and shall be enforceable by the parties hereto and their respective successors,
assigns, heirs, executors, administrators, and legal representatives. The Corporation shall require
and cause any direct or indirect successor (whether by purchase, merger, consolidation, or
otherwise) to all or substantially all of the business or assets of the Corporation by written
agreement, expressly to assume and agree to perform this Agreement in the same manner and to the
same extent that the Corporation would be required to perform if no such succession had taken
place.



     Section 7.7 Titles and Subtitles. The titles of the sections and subsections of this
Agreement are for convenience of reference only and are not to be considered in construing this
Agreement.



     Section 7.8 Resolution of Disputes.



     (a) Any and all disputes which cannot be settled amicably, including any ancillary claims of
any party, arising out of, relating to or in connection with the validity, negotiation, execution,
interpretation, performance, or non-performance of this Agreement (including the validity, scope
and enforceability of this arbitration provision) (each a “Dispute”) shall be finally settled by
arbitration conducted by a single arbitrator in New York, New York in accordance with the
then-existing Rules of Arbitration of the International Chamber of Commerce. If the parties to the
Dispute fail to agree on the selection of an arbitrator within ten (10) days of the receipt of the
request for arbitration, the International Chamber of Commerce shall make the appointment. The
arbitrator shall be a lawyer admitted to the practice of law in the State of New York and shall
conduct the proceedings in the English language. Performance under this Agreement shall continue if
reasonably possible during any arbitration proceedings.



     (b) Notwithstanding the provisions of paragraph (a), the Corporation may bring an action or
special proceeding in any court of competent jurisdiction for the purpose of compelling a party to
arbitrate, seeking temporary or preliminary relief in aid of an arbitration hereunder, and/or
enforcing an arbitration award. For the purposes of this paragraph (b), each of the Members (i)
expressly consents to the application of paragraph (c) of this Section 7.8 to any such action or
proceeding, (ii) agrees that proof shall not be required that monetary damages for breach of the
provisions of this Agreement would be difficult to calculate and that remedies at law would be
inadequate, and (iii) irrevocably appoints the Corporation as agent of such Member for service of
process in connection with any such action or proceeding and agrees that service of process upon
such agent, who shall promptly advise the Committee or, if such action relates solely to one or
more Members and not the Members as a whole, such Members of any such service of process, shall be
deemed in every respect effective service of process upon such Members in any such action or
proceeding.



     (c) (i) EACH PARTY HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF COURTS LOCATED IN NEW
YORK, NEW YORK FOR THE PURPOSE OF ANY JUDICIAL PROCEEDING BROUGHT IN ACCORDANCE WITH THE PROVISIONS
OF THIS SECTION 7.8, OR ANY JUDICIAL PROCEEDING ANCILLARY TO AN ARBITRATION OR CONTEMPLATED
ARBITRATION ARISING OUT OF OR RELATING TO OR CONCERNING THIS AGREEMENT. Such ancillary judicial
proceedings include any suit, action, or proceeding to compel arbitration, to obtain temporary or
preliminary judicial relief in aid of arbitration, or to confirm an arbitration award. The parties
acknowledge that the forums designated by this paragraph (c) have a reasonable relation to this
Agreement, and to the parties’ relationship with one another; and



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          (ii) The parties hereby waive, to the fullest extent permitted by applicable law, any
objection which they now or hereafter may have to personal jurisdiction or to the laying of venue
of any such ancillary suit, action or proceeding brought in any court referred to in the preceding
paragraph of this Section 7.8 and such parties agree not to plead or claim the same.




     Section 7.9 Reconciliation. In the event that the Corporation, on the one hand, and
one or more of the Members, on the other hand, are unable to resolve a disagreement with respect to
the matters governed by Sections 2.3, 4.2 and 6.2 within the relevant period designated in this
Agreement (“Reconciliation Dispute”), the Reconciliation Dispute shall be submitted for
determination to a nationally recognized expert (the “Expert”) in the particular area of
disagreement mutually acceptable to the disputing parties and retained by the Corporation. The
Expert shall be a partner or principal in a nationally recognized accounting or law firm, and
unless the parties to the Reconciliation Dispute agree otherwise, the Expert shall not, and the
firm that employs the Expert shall not, have any material relationship with the parties to the
Reconciliation Dispute or other actual or potential conflict of interest. If the parties are unable
to agree on an Expert within fifteen (15) days of receipt by the respondent(s) of written notice of
a Reconciliation Dispute, the Expert shall be appointed by the International Chamber of Commerce
Centre for Expertise. The Expert shall resolve any matter relating to the Closing Date Basis
Recovery Letter or an amendment thereto, or the Early Termination Schedule or an amendment thereto
within 30 calendar days and shall resolve any matter relating to a Tax Benefit Schedule or an
amendment thereto within 15 calendar days or as soon thereafter as is reasonably practicable, in
each case after the matter has been submitted to the Expert for resolution. Notwithstanding the
preceding sentence, if the matter is not resolved before any payment that is the subject of a
disagreement would be due (in the absence of such disagreement) or any Tax Return reflecting the
subject of a disagreement is due, the undisputed amount shall be paid on the date prescribed by
this Agreement and such Tax Return may be filed as prepared by the Corporation, subject to
adjustment or amendment upon resolution. The parties to the Reconciliation Dispute shall bear their
own costs and expenses of such proceeding, unless (i) the Expert adopts the position of a party or
parties to the Resolution Dispute, in which case the party or parties whose position was not
adopted shall reimburse the party or parties whose position was adopted for any reasonable
out-of-pocket costs and expenses in such proceeding. Any dispute as to whether a dispute is a
Reconciliation Dispute within the meaning of this Section 7.9 shall be decided by the Expert. The
Expert shall finally determine any Reconciliation Dispute and the determinations of the Expert
pursuant to this Section 7.9 shall be binding on the parties to this Agreement and may be entered
and enforced in any court having jurisdiction.



     Section 7.10 Withholding. The Corporation shall be entitled to deduct and withhold
from any payment payable pursuant to this Agreement such amounts as the Corporation is required to
deduct and withhold with respect to the making of such payment under the Code or any provision of
state, local, or foreign tax law. To the extent that amounts are so withheld and paid over to the
appropriate Taxing Authority by the Corporation, such withheld amounts shall be treated for all
purposes of this Agreement as having been paid to the Members.



     Section 7.11 Treatment of a Consolidated Group; Transfers of Corporate Assets.



     (a) To the extent that the Corporation is or becomes a member of a consolidated, combined or
unitary group of corporations that files a consolidated, combined or unitary income tax return
pursuant to Sections 1501 et seq. of the Code or any provisions of state or local law, or would be
eligible to become a member of such a group at the election of one or members of that group, then:
(i) the provisions of this Agreement shall be applied with respect to the group as a whole; and
(ii) Tax Benefit Payments, Early Termination Payments, and other applicable items hereunder shall
be computed with reference to the group as a whole.



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     (b) If the Corporation transfers one or more assets to a corporation (or a Person classified
as a corporation for U.S. income tax purposes) with which such entity does not file a consolidated
tax return pursuant to Section 1501 of the Code, such entity, for purposes of calculating the
amount of any Tax Benefit Payment or Early Termination Payment (e.g., calculating the gross income
of the entity and determining the Realized Tax Benefit or Realized Tax Detriment of such entity)
due hereunder, shall be treated as having disposed of such asset in a fully taxable transaction on
the date of such contribution. The consideration deemed to be received by such entity shall be
equal to the fair market value of the contributed asset. For purposes of this Section 7.11, a
transfer of a partnership interest shall be treated as a transfer of the transferring partner’s
share of each of the assets and liabilities of that partnership.



     Section 7.12 Confidentiality.



     (a) Each of the Members acknowledges and agrees that the information of the Corporation and
its Affiliates and successors is confidential and, except in the course of performing any duties as
necessary for the Corporation and its Affiliates, as required by law or legal process or to enforce
the terms of this Agreement, such person shall keep and retain in the strictest confidence and not
disclose to any Person any confidential matters, acquired pursuant to this Agreement, of the
Corporation and its Affiliates and successors learned by such Member heretofore or hereafter. This
Section 7.12 shall not apply to (i) any information that has been made publicly available by the
Corporation or any of its Affiliates or successors or that is or becomes available to the public
(except as a result of an act of any Member or the Committee in violation of this Agreement), (ii)
the disclosure of information (A) to authorized directors, officers, representatives, agents and
employees of a Member or any of its Affiliates that agree to be bound by the provisions of this
Section 7.12 and as otherwise may be proper in the course of performing such Member’s
obligations, or enforcing such Member’s rights, under this Agreement, (B) as part of such Member’s
normal reporting, rating or review procedure (including normal credit rating and pricing process),
or in connection with such Member’s or such Member’s Affiliates’ normal fund raising, marketing,
informational or reporting activities, or to such Member’s (or any of its Affiliates’) Affiliates,
auditors, accountants, attorneys or other agents, (C) to any bona fide prospective assignee of such
Member’s rights under this Agreement, or prospective merger partner of such Member,
provided that such assignee or merger partner agrees to be bound by the provisions of this
Section 7.12, (D) as is required to be disclosed by order of a court of competent
jurisdiction, administrative body or governmental body, or by subpoena, summons or legal process,
or by law, rule or regulation; provided that any Member required to make such disclosure
pursuant to clause (D) above shall provide to the Corporation prompt notice of such
disclosure, or (E) to the extent necessary for a Member to prepare and file its Tax Returns, to
respond to any inquiries regarding the same from any Taxing Authority, or to prosecute or defend
any action, proceeding or audit by any Taxing Authority with respect to such Tax Returns.
Notwithstanding anything to the contrary herein, the Members (and each employee, representative or
other agent of the Members, as applicable) may disclose to any and all Persons, without limitation
of any kind, the tax treatment and tax structure of the Corporation, Aurora, and their Affiliates,
and any of their transactions, and all materials of any kind (including opinions or other tax
analyses) that are provided to the Members or the Committee relating to such tax treatment and tax
structure. Nothing in this Section 7.12 shall in any way limit or otherwise modify any
confidentiality covenants entered into by any employee of the Corporation or its Subsidiaries
pursuant to any other agreement entered into with the Corporation or any of its Subsidiaries.



     (b) If any of the Members or the Committee commits a breach, or threatens to commit a breach,
of any of the provisions of this Section 7.12, the Corporation or any of its Affiliates shall have
the right and remedy to have the provisions of this Section 7.12 specifically enforced by
injunctive relief or otherwise by any court of competent jurisdiction without the need to post any
bond or other security, it being acknowledged and agreed that any such breach or threatened breach
shall cause irreparable injury to the Corporation or any of its Affiliates and the accounts and
funds managed by the Corporation or any



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of its Affiliates, and that money damages alone shall not provide an adequate remedy to such
Persons. Such rights and remedies shall be in addition to, and not in lieu of, any other rights and
remedies available at law or in equity.




     Section 7.13 Member Committee.



     (a) Authority of the Committee. Except for situations in which the approval of a
Member or the Members collectively is expressly and specifically required by the express terms of
this Agreement, and subject to the other provisions set forth in this Section 7.13, the
Committee shall have the sole power to bind or take any action on behalf of the Members, or to
exercise any rights and powers granted to the Members under this Agreement (including, without
limitation, the full power and authority on each Member’s behalf (i) to receive and disburse any
Schedule or other document contemplated under this Agreement on behalf of such Member; (ii) to
execute and deliver on behalf of such Member, at the direction of such Member, any amendment or
waiver hereto; (iii) to take all other actions to be taken by or on behalf of such Member in
connection herewith; and (iv) to take certain actions, give or withhold certain consents or
approvals, or make certain determinations, opinions, judgments, or other decisions which such
Member or the Members collectively are permitted or required to take, give, withhold or make under
this Agreement). All decisions and actions by the Committee (to the extent authorized by this
Agreement) shall be binding upon all Members, and no Member shall have the right to object,
dissent, protest or otherwise contest the same.



     (b) Composition of the Committee.



          (i) Number and Appointment. The Committee shall consist of three (3) Representatives.
The holders of a majority of the Percentages designated on the Member Percentage Schedule as KRG
Percentages shall have the right to appoint one (1) Representative (the “KRG Representative”), the
holders of a majority of the Percentages designated on the Member Percentage Schedule as Summit
Percentages shall have the right to appoint one (1) Representative (the “Summit Representative”)
and the holders of a majority of the Percentages designated on the Member Percentage Schedule as
Management Percentages shall have the right to appoint one (1) Representative (the “Management
Representative”). The initial Committee shall consist of Christopher J. Bock (who shall be the initial KRG
Representative), Pete Connolly (who shall be the initial Summit Representative) and James C. New
(who shall be the initial Management Representative).




          (ii) Term; Removal. Each Representative appointed shall serve until a successor is
appointed by the Persons entitled to appoint such Representative hereunder by written notice to the
Corporation and the other Representatives or his or her earlier resignation, death or removal. A
Representative may resign at any time upon written notice to the Committee. The Person or Persons
entitled to designate a specific Representative shall be the only Person or Persons entitled to
remove such Representative.




          (iii) Vacancies. A vacancy in the Committee because of resignation, death or removal
of a Representative will be filled by the Person or Persons entitled to appoint such Representative
pursuant to the terms of this Section 7.13. If any Person or Persons fail to appoint a
Representative pursuant to the terms of this Section 7.13, such position in the Committee
shall remain vacant until such Person or Persons exercise their right to appoint a Representative
as provided hereunder.




     (c) Committee Actions; Meetings. Unless another percentage is set forth herein, any
determination or action required or permitted to be taken by the Committee may be taken at a
meeting at which a quorum is present by a majority of the Representatives then in office (through
meetings of the Committee pursuant to this Section 7.13). A majority of the
Representatives shall constitute a quorum sufficient for conducting meetings and making decisions.
Regular meetings of the Committee may be



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held on such date and at such time and at such place as shall from time to time be determined
by the Committee. Special meetings of the Committee may be called from time to time by any two (2)
Representatives acting together. Notice of each special meeting of the Committee stating the date,
place and time of such meeting shall be delivered to each Representative by hand, telephone,
telecopy, overnight courier or the U.S. mail at least forty-eight (48) hours prior to any meeting
of the Committee. Notice may be waived before or after a meeting or by attendance without protest
at such meeting. Any action to be taken by the Committee may be taken at a meeting of the
Committee or by a written consent executed by all of the Representatives then in office.
Representatives may participate in a meeting of the Committee by means of telephone conference or
similar communications equipment by which all Persons participating in the meeting can communicate
with each other, and such participation in a meeting shall constitute presence in person at the
meeting. The Committee may adopt such other procedures governing meetings and the conduct of
business at such meetings as it shall deem appropriate. Any Representative unable to attend a
meeting of the Committee may designate another Representative as his or her proxy. Each
Representative shall have one vote on all matters before the Committee.




     (d) Delegation of Authority. The Committee may delegate its authority hereunder to any
Person and may retain service providers as it deems necessary to carry out its responsibilities
hereunder. Except as otherwise provided herein, the Committee may direct the Corporation in
writing to direct a pro rata portion all or any portion of payments to be made to the Members
hereunder to pay or reimburse any Person for the payment of any such service providers.



     (e) Limitation of Liability. Except as otherwise provided herein or in any agreement
entered into by such Person and the Corporation, no present or former Representative nor any such
Representative’s Affiliates, employees, agents or representatives shall be liable to any Member for
any act or omission performed or omitted by such Person in its capacity as Representative;
provided that, except as otherwise provided herein, such limitation of liability
shall not apply to the extent the act or omission was attributable to such Person’s bad faith,
willful misconduct or knowing violation of law or willful breach of this Agreement as determined by
a final judgment, order or decree of an arbitrator or a court of competent jurisdiction (which is
not appealable or with respect to which the time for appeal therefrom has expired and no appeal has
been perfected). Each Representative shall be entitled to rely upon the advice of legal counsel,
independent public accountants and other experts, including financial advisors, and any act of or
failure to act by such Representative in good faith reliance on such advice shall in no event
subject such Representative or any of such Representative’s Affiliates, employees, agents or
representatives to liability to any Member.



     (f) Indemnification.



          (i) Generally. Each Member hereby agrees, on an individual basis, for itself only and
not jointly and severally, to indemnify and hold harmless any Person (each an “Indemnified
Person”) against such Member’s Percentage of all expenses, liabilities and losses (including
attorney fees, judgments, fines, excise taxes or penalties) reasonably incurred or suffered by such
Person (or one or more of such Person’s Affiliates) by reason of the fact that such Person is or
was serving as a Representative or is or was acting pursuant to delegated authority of the
Committee if, in each case, such Indemnified Person acted in good faith and in a manner the Person
reasonably believed to be in or not opposed to the best interests of the Members and not in
violation of the express terms of this Agreement, and, with respect to any criminal action or
proceeding, had no reasonable cause to believe the Person’s conduct was unlawful. Expenses,
including attorneys’ fees and expenses, incurred by any such Indemnified Person in defending a
proceeding shall be paid by the Corporation (on behalf of the Members) in advance of the final
disposition of such proceeding, including any appeal therefrom, upon receipt of an undertaking by
or on behalf of such Indemnified Person to repay such amount if it shall ultimately be determined
that such Indemnified Person is not entitled to be indemnified hereunder.








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          (ii) Nonexclusivity of Rights. The right to indemnification and the advancement of
expenses conferred in this Section 7.13(e) shall not be exclusive of any other right which
any Person may have or hereafter acquire under any statute, agreement, law or otherwise. Without
limiting the foregoing, each Member hereby acknowledges that one or more of the Indemnified Parties
may have certain rights to indemnification, advancement of expenses and/or insurance provided by an
Affiliated Institution. Each Member hereby agrees that, with respect to any such Indemnified
Parties, such Member (i) is, relative to each Affiliated Institution, the indemnitor of first
resort (i.e., its obligations to the applicable Indemnified Person under this Agreement are
primary and any duplicative, overlapping or corresponding obligations of an Affiliated Institution
are secondary), (ii) shall be required to make all advances and other payments under this
Agreement, and shall be fully liable therefor, without regard to any rights any Indemnified Person
may have against an Affiliated Institution, and (iii) irrevocably waives, relinquishes and releases
any such Affiliated Institution from any and all claims against such Affiliated Institution for
contribution, subrogation or any other recovery of any kind in respect thereof. Each Member further
agrees that no advancement or payment by an Affiliated Institution on behalf of an Indemnified
Person with respect to any claim for which such Indemnified Party has sought indemnification from
such Member hereunder shall affect the foregoing and any such Affiliated Institution shall have a
right of contribution and/or be subrogated to the extent of such advancement or payment to all of
the rights of recovery of any such applicable Indemnified Person against such Member. Each Member
agrees that each Affiliated Institution is an express third party beneficiary of the terms of this
Section 7.13(e)(ii).




          (iii) Limitation. Notwithstanding anything contained herein to the contrary (including
in this Section 7.13), any indemnity by the Members relating to the matters covered in this
Section 7.13 shall be provided by the Corporation (on behalf of the Members) and solely out
of and to the extent of the assets of the Corporation that would otherwise fund Tax Benefit
Payments or Early Termination Payments required to be made by the Corporation to the Members under
this Agreement, and no Member (unless such Member otherwise agrees in writing or is found in a
final decision by a court of competent jurisdiction to have personal liability on account thereof)
shall have personal liability on account thereof or shall be required return any portion of any
previously made Tax Benefit Payment to help satisfy any indemnification obligations hereunder. The
Corporation may withhold from the Members pro rata according to their percentages any amounts
advanced by the Corporation hereunder and the Committee may direct the Corporation in writing to
direct a pro rata portion all or any portion of payments to be made to the Members hereunder to pay
or reimburse any Indemnified Person to the extent entitled to indemnification hereunder.




          (f) Reliance. Each Member agrees that the Corporation shall be entitled to rely on any
action taken by the Committee, on behalf of such Member, pursuant to this Section 7.13 (an
“Authorized Action”), and that each Authorized Action shall be binding on each Member as fully as
if such Member had taken such Authorized Action.




     Section 7.14 Term of Agreement. No Tax Benefit Payment shall be required with respect
to any Taxable Year that begins after the end of the 30th Taxable Year following the Taxable Year
in which the Merger takes place; provided, however, that any unpaid Tax Benefit Payments and any
applicable interest, shall continue to accrue and be payable without regard to this Section 7.14.



* * * * *




- 21 -








 





     IN WITNESS WHEREOF, the Corporation, the Summit Funds, the Summit GPs, the SB Shareholders,
the KB Shareholders, and the Management Investors have duly executed this Agreement as of the date
first written above.



	 	 	 	 	 
	 	CORPORATION:

AURORA DIAGNOSTICS, INC.
 	 
	 	By:  	 	 
	 
	 	Name:  	 	 
	 
	 	Its: 	 	 
	 



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	 	SUMMIT FUNDS:



SUMMIT VENTURES VI-A, L.P.

 	 
	 	By:  	Summit Partners VI (GP), L.P.
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	                Summit Partners VI (GP), LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 
	 
	 	SUMMIT VI ADVISORS FUND, L.P.

 	 
	 	By:  	Summit Partners VI (GP), L.P.
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	Summit Partners VI (GP), LLC 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	
 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 
	 
	 	SUMMIT VI ENTREPRENEURS FUND, L.P.

 	 
	 	By:  	Summit Partners VI (GP), L.P.
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	              Summit Partners VI (GP), LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	
 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 



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	 	SUMMIT INVESTORS VI, L.P.

 	 
	 	By:  	Summit Partners VI (GP), L.P.
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	               Summit Partners VI (GP), LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 
	 
	 	SUMMIT PARTNERS PRIVATE EQUITY FUND VII-A, L.P.,

 	 
	 	By:  	Summit Partners PE VII, L.P. 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	           Summit Partners PE VII, LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 
	 
	 	SUMMIT GPS:



SUMMIT PARTNERS VI (GP), L.P.

 	 
	 	By:  	Summit Partners VI (GP), LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 
	 
	 	SUMMIT PARTNERS PE VII, L.P.

 	 
	 	By:  	Summit Partners PE VII, LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	
 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 



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	 	SB SHAREHOLDERS:



SUMMIT VENTURES VI-B, L.P.

 	 
	 	By:  	Summit Partners VI (GP), L.P.
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	                Summit Partners VI (GP), LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	
 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 
	 
	 	SUMMIT PARTNERS PRIVATE EQUITY FUND VII-B, L.P.

 
	 	By:  	Summit Partners PE VII, L.P.
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	           Summit Partners PE VII, LLC
 	 
	 	Its: 	General Partner 	 
	 
	 	By:  	
 	 
	 	Name:  	 	 
	 	Its: 	Member 	 
	 



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	 	KB SHAREHOLDERS:



KRG CAPITAL FUND IV, L.P.

 	 
	 	By:  	 	 
	 
	 	Name:  	 	 
	 
	 	Its: 	 	 
	 
	 
	 	KRG CAPITAL FUND IV-A, L.P.

 	 
	 	By:  	 	 
	 
	 	Name:  	 	 
	 
	 	Its: 	 	 
	 
	 
	 	KRG CAPITAL FUND IV (FF), L.P.

 	 
	 	By:  	 	 
	 
	 	Name:  	 	 
	 
	 	Its: 	 	 
	 
	 
	 	KRG CAPITAL FUND IV (PA), L.P.

 	 
	 	By:  	 	 
	 
	 	Name:  	 	 
	 
	 	Its: 	 	 
	 
	 
	 	KRG CO-INVESTMENT, L.L.C.

 	 
	 	By:  	 	 
	 
	 	Name:  	 	 
	 
	 	Its: 	 	 
	 



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	 	MANAGEMENT INVESTORS:
	 
	 	 
	 

	 	JAMES C. NEW
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	MARTIN J. STEFANELLI
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	CHRISTOPHER JAHNLE
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	KIRK A. REBANE
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	FRED FERRARA
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	GREG MARSH
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	MICHAEL NULL
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	MICHAEL GRATTENDICK
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 
	 

	 	DEANNA SHACKLEY
	 
	 	 
	 
	 	 
	 

	 	 
	 
	 	 
	 
	 	 





Signature Page to Tax Receivable Agreement