Document:

Exhibit 10.36

 EXHIBIT 10.36 
 FIRST AMENDMENT TO THE 
 ALBEMARLE CORPORATION 
 DIRECTORS’ DEFERRED COMPENSATION PLAN 
 (As Amended and Restated Effective
January 1, 2005) 
 In accordance with Section 13 of the Albemarle Corporation Directors’ Deferred Compensation Plan (As
Amended and Restated Effective January 1, 2005) (the “Plan”), the Plan is hereby amended as follows: 
  

	1.	A new Section 2(ee) of the Plan is added to the Plan to read as follows: 

 “(ee) Additional Discretionary Allocations shall mean the amounts, if any, allocated to Directors’ Deferred Stock Accounts pursuant to Section 4(h) of the Plan.” 
  

	2.	Section 2(q) of the Plan is amended to add the following at the end thereof: 

 “Effective January 1, 2009, Deferred Stock Benefit shall also mean any Additional Discretionary Allocations made pursuant to Section 4(h) of the Plan.” 
  

	3.	A new paragraph (h) is added to Section 4 of the Plan to read as follows: 

 “(h) Effective January 1, 2009, the Board may determine in any year to make Additional Discretionary Allocations to the Deferred Stock Accounts of some or all of the Directors. Additional Discretionary
Allocations, if any, shall be made solely at the discretion of the Board and the decision to make Additional Discretionary Allocations in one year shall have no effect on the decision to make Additional Discretionary Allocations in a succeeding
year. Any Additional Discretionary Allocations made pursuant to this Section 4(h) shall be allocated to a Director’s Deferred Stock Account and shall be subject to the other relevant provisions of this Plan.” 
  

	4.	Section 7(a) of the Plan is amended to add the following at the end thereof: 

 “A Participant’s Deferred Stock Benefit attributable to Additional Discretionary Allocations shall be credited to the Participant’s Deferred Stock Account as the number of shares of Common Stock awarded
or, if the Additional Allocation is awarded in cash, shall be credited to the Participant’s Deferred Stock Account as a number of whole and fractional shares of Common Stock as of the day the Additional Allocation is granted, based on the Fair
Market Value of Common Stock on the business day preceding that date.” 
  

	5.	The second sentence of Section 7(b) of the Plan is amended to insert the phrase “, any Additional Discretionary Allocations,” immediately after the phrase “as if
the Compensation deferred by the Participant under the Plan” therein. 

  

	6.	Section 8 of the Plan is amended to add the following new paragraph (e) at the end thereof: 

 “(e) Notwithstanding paragraphs (a) and (b) of this Section 8, that portion of a Participant’s Deferred Stock Account that is
attributable to Additional Discretionary Allocations and credits thereon shall be distributed in the form of Common Stock in a lump sum on the first anniversary of the date the Additional Discretionary Allocation was awarded.” 
  

	7.	Section 9 of the Plan is amended to add the following new paragraph (e) at the end thereof: 

 “(e) Notwithstanding the foregoing, the provisions of this Section 9 shall not apply to Additional Discretionary Allocations and credits
thereon.” 
  

	8.	The provisions of this First Amendment shall be effective as of January 1, 2009. 

 IN WITNESS WHEREOF, the Corporation by its duly authorized officer and with its seal affixed, has caused these presents to be signed as of this 13th day of May, 2009, pursuant to the approval of the Board of Directors
at its meeting on May 13, 2009. 
  

			
	ALBEMARLE CORPORATION
		
	 By:
	 	/s/ Nicole Daniel
		 	Nicole Daniel
		 	Assistant SecretaryFourth Amendment to Amended and Restated Credit Agreement - Wells Fargo Bank

 Exhibit 10.1 
 EXECUTION VERSION 
 FOURTH AMENDMENT
TO 
 AMENDED AND RESTATED CREDIT AGREEMENT

 THIS FOURTH AMENDMENT TO AMENDED AND
RESTATED CREDIT AGREEMENT (this “Amendment”) is entered into as of June 30, 2009, between NATUS MEDICAL INCORPORATED, a Delaware
corporation (“Borrower”), and WELLS FARGO BANK, NATIONAL ASSOCIATION (“Bank”). 
 RECITALS 
 WHEREAS Borrower is currently indebted
to Bank pursuant to the terms and conditions of the Amended and Restated Credit Agreement, dated as of November 28, 2007 (as amended, modified or supplemented prior to the date hereof, the “Credit Agreement”), between Borrower
and Bank; and 
 WHEREAS Borrower has informed Bank that, for the fiscal quarter ending June 30, 2009, it will be unable
to comply with the financial condition covenant set forth in Section 6.9(a) of the Credit Agreement; and 
 WHEREAS Bank
and Borrower have agreed to certain changes in the terms and conditions set forth in the Credit Agreement and have agreed to amend the Credit Agreement to reflect such changes; 
 NOW, THEREFORE, for valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Bank and Borrower
hereby agree that the Credit Agreement shall be amended as follows; provided that nothing contained herein shall terminate any security interests, guaranties, subordinations or other documents in favor of Bank, all of which shall remain in
full force and effect unless expressly amended hereby: 
 Section 1. Definitions. Each capitalized term used but not otherwise
defined herein has the meaning assigned to it in the Credit Agreement. 
 Section 2. Amendments to Credit Agreement. Subject to
Section 3 hereof, the Credit Agreement is hereby amended as follows: 
 (a) Section 6.9(a) of the Credit Agreement
is amended and restated in its entirety to read as follows: 
 (a) As of each fiscal quarter end of Borrower, Consolidated
EBITDA not less than the amount set forth below: 
  

				
	 For each quarterly period ending as of each fiscal quarter end of Borrower ending on or before September 30, 2008:
	  	$	5,000,000
		
	 For the four consecutive fiscal quarters ending as of each fiscal quarter end of Borrower ending on December 31,
2008, March 31, 2009 and September 30, 2009:
	  	$	35,000,000
		
	 For the four consecutive fiscal quarters ending as of the fiscal quarter end of Borrower ending on June 30, 2009:
	  	$	32,000,000

 Section 3. Conditions Precedent. This Amendment, including, without limitation the amendments
to the Credit Agreement contained herein, shall become effective as of the date first set forth above (the “Effective Date”) upon satisfaction of all of the conditions set forth in this Section 3 to the satisfaction of Bank;
provided that, in the event such conditions are not so satisfied, then this Amendment shall be of no further force and effect: 
 (a) Bank shall have received each of the following, duly executed and delivered by each of the applicable parties thereto: 
 (i) this Amendment together with the Consent and Reaffirmation attached hereto; and 
 (ii) such other documents as Bank may require under any other Section of this Amendment; and 
 (b) No Event of Default or event which, with the giving of notice, the lapse of time or both would constitute an Event of Default, shall
have occurred and be continuing. 
 Section 4. Interpretation. Except as specifically provided herein, all terms and conditions
of the Credit Agreement remain in full force and effect, without waiver or modification. This Amendment and the Credit Agreement shall be read together, as one document. The Recitals hereto, including the terms defined therein, are incorporated
herein by this reference and acknowledged by Borrower to be true, correct and complete. 
 Section 5. Representations, Warranties and
Covenants. Borrower hereby remakes all representations and warranties contained in the Credit Agreement and reaffirms all covenants set forth therein (as amended hereby) as of the date of this Amendment. Borrower further certifies that as of the
date of this Amendment there exists no Event of Default, nor any condition, act or event which with the giving of notice or the passage of time or both would constitute an Event of Default. 
 Section 6. Further Assurances. Borrower will make, execute, endorse, acknowledge, and deliver any agreements, documents, or instruments, and
take any and all other actions, as may from time to time be reasonably requested by Bank to perfect and maintain the validity and priority of the liens and security interests granted to Bank pursuant to the Credit Agreement and the other Loan
Documents and to effect, confirm, or further assure or protect and preserve the interests, rights, and remedies of Bank under the Credit Agreement (as amended hereby) and the other Loan Documents. 
  

 - 2 - 

 Section 7. Counterparts. This Amendment may be executed in any number of identical
counterparts, any set of which signed by all the parties hereto shall be deemed to constitute a complete, executed original for all purposes. Delivery of an executed counterpart of a signature page of this Amendment by telefacsimile transmission
shall be as effective as delivery of a manually executed counterpart hereof. 
 Section 8. Governing Law. This Amendment shall be
governed by and construed in accordance with the internal laws of the State of California. 
 [Signatures follow on next page.] 
  

 - 3 - 

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

									
	 NATUS MEDICAL INCORPORATED,
 a Delaware corporation
	  		  	WELLS FARGO BANK,
 NATIONAL ASSOCIATION

					
	By:	  	  
	  		  	By:	  	  

	Name:	  	Steven J. Murphy	  		  	Name:	  	Alicia Kachmarik
	Title:	  	Vice President Finance and Chief Financial Officer	  		  	Title:	  	Vice President

 CONSENT AND REAFFIRMATION 
 Each of the undersigned, a subsidiary of Natus Medical Incorporated (“Borrower”) who has executed a Continuing Guaranty in favor of
Wells Fargo Bank, National Association (“Bank”), hereby: (i) consents to the foregoing Fourth Amendment to Amended and Restated Credit Agreement; (ii) reaffirms its obligations under its respective Continuing Guaranty;
(iii) reaffirms the waivers of each and every one of the defenses to such obligations as set forth in such Continuing Guaranty; and (iv) reaffirms that its obligations under such Continuing Guaranty are separate and distinct from the
obligations of any other party under the Credit Agreement (as modified by the Fourth Amendment to Amended and Restated Credit Agreement) and the other Loan Documents. 
 Dated as of June 30, 2009 
 GUARANTOR: 
  

									
	NATUS ACQUISITION CORPORATION	  		  	NEUROCOM INTERNATIONAL, INC.
					
	By:	  	  
	  		  	By:	  	  

	Name:	  	Steven J. Murphy	  		  	Name:	  	Steven J. Murphy
	Title:	  	Chief Financial Officer	  		  	Title:	  	Chief Financial Officer

 CONSENT AND REAFFIRMATION

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