Document:

exv4w3

Exhibit 4.3

SECOND SUPPLEMENTAL INDENTURE

          Second Supplemental Indenture (this “Supplemental Indenture”), dated as of December 31,
2010, among The LMC Revocable Trust, B .T., a Nevada business trust (“LMC Trust”) and The WPC
Revocable Trust, B.T., a Nevada business trust (“WPC
Trust”; together with LMC Trust, each
individually, an “Additional Subsidiary Guarantor” and collectively, the “Additional
Subsidiary Guarantors”), Aurora Diagnostics Holdings, LLC, a Delaware limited liability company
(the “Company”), Aurora Diagnostics Financing, Inc., a Delaware corporation (the
“Co-Issuer” and, together with the Company, the “Issuers”), and U.S. Bank National
Association (the “Trustee”).

WITNESSETH:

          WHEREAS, the Issuers and the Subsidiary Guarantors have heretofore executed and delivered to the
Trustee an Indenture (the “Indenture”), dated as of December 20, 2010, providing for the issuance
of an unlimited aggregate principal amount of 10.750% Senior Notes due 2018 (the “Securities”);

          WHEREAS, the Additional Subsidiary Guarantors are direct or indirect
subsidiaries of the Company;

          WHEREAS, Section 4.13 of the Indenture provides that under certain circumstances the Issuers shall
cause the Additional Subsidiary Guarantors to execute and deliver to the Trustee a guaranty
agreement pursuant to which the Additional Subsidiary Guarantors shall Guarantee payment of the
Securities on the same terms and conditions as those set forth in Article 10 of the Indenture; and

          WHEREAS, pursuant to Section 9.0 1(4) of the Indenture, the Trustee and the Issuers are authorized
to execute and deliver this Supplemental Indenture.

          NOW THEREFORE, in consideration of the foregoing and for good and valuable consideration, the
receipt of which is hereby acknowledged, the Issuers, each Additional Subsidiary Guarantor and the
Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the
Securities as follows:

          (1) Capitalized Terms. Capitalized terms used herein without definition shall have the
meanings assigned to them in the Indenture.

          (2) Agreement to be Bound. Each Additional Subsidiary Guarantor hereby becomes a party to
the Indenture as a Subsidiary Guarantor and as such will have all of the rights and be subject to
all of the obligations and agreements of a Subsidiary Guarantor under the Indenture.

          (3) Guarantee. Each Additional Subsidiary Guarantor agrees, on a joint and several basis
with all the existing Subsidiary Guarantors, to Guarantee to each Holder of the Securities and the
Trustee the Guaranteed Obligations pursuant to Article 10 of the Indenture.

 

 

          (4) No Recourse Against Others. No trustee, trustor, director, officer, employee, manager,
member or stockholder of either Additional Subsidiary Guarantor shall have any liability for any
obligations of the Issuers or the Guarantors (including the Additional Subsidiary Guarantors) under
the Securities, any Guarantee Agreement, the Indenture or this Supplemental Indenture or for any
claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by
accepting Securities waives and releases all such liability. The waiver and release are part of the
consideration for issuance of the Securities and the Guarantees.

          (5) Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REFERENCE
TO ITS CONFLICT OF LAW PROVISIONS, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

          (6) Counterparts. The parties may sign any number of copies of this Supplemental Indenture.
Each signed copy shall be an original, but all of them together represent the same agreement.

          (7) Effect of Headings. The Section headings herein are for convenience only and shall not
affect the construction hereof.

          (8) The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in
respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the
recitals contained herein, all of which recitals are made solely by the Additional Subsidiary
Guarantors.

          (9) Benefits Acknowledged. Each Additional Subsidiary Guarantor’s Guarantee is subject to
the terms and conditions set forth in the Indenture. Each Additional Subsidiary Guarantors
acknowledges that it will receive direct and indirect benefits from the financing arrangements
contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers
made by it pursuant to this Guarantee are knowingly made in contemplation of such benefits.

          (10) Successors. All agreements of the Additional Subsidiary Guarantors in this
Supplemental Indenture shall bind their respective successors, except as otherwise provided in the
Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors.

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

	 	 	 	 	 
	 	The Issuers:

AURORA DIAGNOSTICS HOLDINGS, LLC

 	 
	 	By:  	/s/ Martin J. Stefanelli
 	 
	 	 	Martin J. Stefanelli	 
	 	 	Chief Operating Officer 	 
	 
	 	AURORA DIAGNOSTICS FINANCING, INC.

 	 
	 	By:  	/s/ Martin J. Stefanelli
 	 
	 	 	Martin j. Stefanelli	 
	 	 	Chief Operating Officer 	 
	 
	 	The Additional Subsidlary Guarantors:

THE LMC REVOCABLE TRUST, B.T.

 	 
	 	By:  	/s/ James C.  New
 	 
	 	 	James C.  New 	 
	 	 	Trustee
	 
	 	 	 
	 	By:  	/s/ Martin J. Stefanelli
 	 
	 	 	Martin J. Stefanelli	 
	 	 	Trustee 	 
	 
	 	THE LMC REVOCABLE TRUST, B.T.	 
	 
	 	By:  	/s/ James C.  New
 	 
	 	 	James C. New 	 
	 	 	Trustee
	 	 	 
	 	By:  	/s/ Martin J. Stefanelli
 	 
	 	 	Martin J. Stefanelli	 
	 	 	Trustee 	 

[Signature page of Second Supplemental Indenture]

 

 

	 	 	 	 	 
	U.S. BANK NATIONAL ASSOCIATION,

as Trustee

 	 
	By 	/s/
Laurie A. Howard
 	 
	 	Name:  	Laurie A. Howard 	 
	 	Title:  	Vice President 	 
	 

[Signature page of Second Supplemental Indenture]exv4w4

Exhibit 4.4

THIRD SUPPLEMENTAL INDENTURE

          Third Supplemental Indenture (this “Supplemental Indenture”), dated as of June 2, 2011,
among Derm Path New England, LLC, a Massachusetts limited liability company (the “Additional
Subsidiary Guarantor”), Aurora Diagnostics Holdings, LLC, a Delaware limited liability company
(the “Company”), Aurora Diagnostics Financing, Inc., a Delaware corporation (the
“Co-Issuer” and, together with the Company, the “Issuers”), and U.S. Bank National
Association (the “Trustee”).

WITNESSETH:

          WHEREAS, the Issuers and the Subsidiary Guarantors have heretofore executed and delivered to the
Trustee an Indenture (the “Indenture”), dated as of December 20, 2010, providing for the
issuance of an unlimited aggregate principal amount of 10.750% Senior Notes due 2018 (the
“Securities”);

          WHEREAS, the Additional Subsidiary Guarantor is a direct or indirect subsidiary of the Company;

          WHEREAS, Section 4.13 of the Indenture provides that under certain circumstances the Issuers shall
cause the Additional Subsidiary Guarantor to execute and deliver to the Trustee a guaranty
agreement pursuant to which the Additional Subsidiary Guarantor shall Guarantee payment of the
Securities on the same terms and conditions as those set forth in Article 10 of the Indenture; and

          WHEREAS, pursuant to Section 9.0 1(4) of the Indenture, the Trustee and the Issuers are authorized
to execute and deliver this Supplemental Indenture.

          NOW THEREFORE, in consideration of the foregoing and for good and valuable consideration, the
receipt of which is hereby acknowledged, the Issuers, the Additional Subsidiary Guarantor and the
Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the
Securities as follows:

          (1) Capitalized Terms. Capitalized terms used herein without definition shall have the
meanings assigned to them in the Indenture.

          (2) Agreement to be Bound. The Additional Subsidiary Guarantor hereby becomes a party to
the Indenture as a Subsidiary Guarantor and as such will have all of the rights and be subject to
all of the obligations and agreements of a Subsidiary Guarantor under the Indenture.

          (3) Guarantee. The Additional Subsidiary Guarantor agrees, on a joint and several basis
with all the existing Subsidiary Guarantors, to Guarantee to each Holder of the Securities and the
Trustee the Guaranteed Obligations pursuant to Article 10 of the Indenture.

          (4) No Recourse Against Others. No director, officer, employee, manager, member or
stockholder of the Additional Subsidiary Guarantor shall have any liability for any obligations of the Issuers or the Guarantors (including the Additional Subsidiary Guarantor)

 

 

under the Securities, any Guarantee Agreement, the Indenture or this Supplemental Indenture or for
any claim based on, in respect of; or by reason of, such obligations or their creation, Each Holder
by accepting Securities waives and releases all such liability. The waiver and release are part of
the consideration for issuance of the Securities and the Guarantees.

          (5) Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REFERENCE
TO ITS CONFLICT OF LAW PROVISIONS, AND THE OBLIGATIONS, RIGHTS AND
REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

          (6) Counterparts. The parties may sign any number of copies of this Supplemental Indenture.
Each signed copy shall be an original, but all of them together represent the same agreement.

          (7) Effect of Headings. The Section headings herein are for convenience only and shall not
affect the construction hereof.

          (8) The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in
respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the
recitals contained herein, all of which recitals are made solely by the Additional Subsidiary
Guarantor.

          (9) Benefits Acknowledged. The Additional Subsidiary Guarantor’s Guarantee is subject to
the terms and conditions set forth in the Indenture. The Additional Subsidiary Guarantor
acknowledges that it will receive direct and indirect benefits from the financing arrangements
contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers
made by it pursuant to this Guarantee are knowingly made in contemplation of such benefits.

          (10) Successors. All agreements of the Additional Subsidiary Guarantor in this Supplemental
Indenture shall bind its successors, except as otherwise provided in the Indenture. All agreements
of the Trustee in this Supplemental Indenture shall bind its successors.

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

	 	 	 	 	 
	 	The Issuers:

AURORA DIAGNOSTICS HOLDINGS, LLC

 	 
	 	By:  	/s/ Martin J. Stefanelli
 	 
	 	 	Martin J. Stefanelli	 
	 	 	Chief Operating Officer 	 
	 
	 	AURORA DIAGNOSTICS FINANCING, INC.

 	 
	 	By:  	/s/  Martin J. Stefanelli
 	 
	 	 	Martin J. Stefanelli	 
	 	 	Chief Operating Officer 	 
	 
	 	The Additional Subsidiary Guarantor:

DERMPATH NEW ENGLAND LUC

 	 
	 	By:  	/s/ Martin J. Stefanelli
 	 
	 	 	Martin J. Stefanelli	 
	 	 	Chief Operating Officer 	 

[Signature page of Third Supplemental Indenture]

 

 

	 	 	 	 	 
	 	U.S. BANK NATIONAL ASSOCIATION,

as Trustee

 	 
	 	By  	/s/   Donald T. Hurrelbrink
 	 
	 	 	Name: 	Donald T. Hurrelbrink	 
	 	 	Title: 	 Vice President 	 

[Signature page of Third Supplemental Indenture]

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