Document:

Amendment to 2000 Employee Stock Purchase Plan

 Exhibit 4.5 
  

AMENDMENT 
 to the 

MICROTUNE, INC. 
 2000 EMPLOYEE
STOCK PURCHASE PLAN 
  
 Pursuant to Section 20 of the
Microtune, Inc. 2000 Employee Stock Purchase Plan (the “Plan”), the Plan is hereby amended as follows: 
  
 1. Section 13(a) of the Plan is deleted in its entirety and the following is substituted in its place: 
  
 “Subject to adjustment upon changes in capitalization of the Company as
provided in Section 19 hereof, the maximum number of shares of the Company’s Common Stock which shall be made available for sale under the Plan shall be 1,630,000 shares.” 
  
 2. This Amendment shall amend only those provisions of the Plan set forth herein, and those sections, paragraphs and
sentences not expressly amended hereby shall remain in full force and effect. 
  
 3. This Amendment shall be effective immediately upon its approval by the stockholders of the Company. 
  
 IN WITNESS WHEREOF, the undersigned has executed this Amendment as of February 27, 2004. 
  

			
	MICROTUNE, INC.
		
	By:	 	/s/ James A. Fontaine
		
	Name:	 	James A. Fontaine
		
	Title:	 	Chief Executive Officer & President

  
 APPROVED BY THE
STOCKHOLDERS OF 
 THE COMPANY ON MAY 5, 2004Amendment to 2000 Director Option Plan

 Exhibit 4.6 
  

AMENDMENT 
 to the 

MICROTUNE, INC. 
 2000 DIRECTOR
OPTION PLAN 
  
 Pursuant to Section 11 of the Microtune, Inc.
2000 Director Option Plan (the “Plan”), the Plan is hereby amended as follows: 
  
 1. The first paragraph of Section 3 of the Plan is deleted in its entirety and the following is substituted in its place: 
  
 “Stock Subject to the Plan. Subject to the provisions of Section 10 of the Plan, the maximum aggregate number of Shares which may be optioned
and sold under the Plan is 457,500 Shares. The Shares may be authorized, but unissued, or reacquired Common Stock.” 
  
 2. This Amendment shall amend only those provisions of the Plan set forth herein, and those sections, paragraphs and sentences not expressly amended
hereby shall remain in full force and effect. 
  
 3. This
Amendment shall be effective immediately upon its approval by the stockholders of the Company. 
  
 IN WITNESS WHEREOF, the undersigned had executed this Amendment as of February 27, 2004. 
  

			
	MICROTUNE, INC.
		
	By:	 	/s/ James A. Fontaine
		
	Name:	 	James A. Fontaine
		
	Title:	 	Chief Executive Officer & President

  
 APPROVED BY THE
STOCKHOLDERS OF 
 THE COMPANY ON MAY 5, 2004Amendment to 2000 Stock Plan

 Exhibit 4.7 
  

AMENDMENT 
 to the 

MICROTUNE, INC. 
 2000 STOCK PLAN

  
 Pursuant to Section 16 of the Microtune, Inc. 2000 Stock
Plan (the “Plan”), the Plan is hereby amended as follows: 
  
 1. The first paragraph of Section 3 of the Plan is deleted in its entirety and the following is substituted in its place: 
  
 “Stock Subject to the Plan. Subject to the provisions of Section 14 of the Plan, the maximum aggregate number of Shares that may be optioned
and sold under the Plan is 10,554,496 shares, plus the number of Shares subsequently returned to the Company’s 1996 Stock Option Plan (the “1996 Plan”) as a result of termination of options which were issued and outstanding under the
1996 Plan on the date immediately prior to the date of stockholder approval of the original adoption of the Plan. The Shares may be authorized, but unissued, or reacquired Common Stock.” 
  
 2. This Amendment shall amend only those provisions of the Plan set forth
herein, and those sections, paragraphs and sentences not expressly amended hereby shall remain in full force and effect. 
  
 3. This Amendment shall be effective immediately upon its approval by the stockholders of the Company. 
  
 IN WITNESS WHEREOF, the undersigned has executed this Amendment as of
February 27, 2004. 
  

			
	MICROTUNE, INC.
		
	By:	 	/s/ James A. Fontaine
		
	Name:	 	James A. Fontaine
		
	Title:	 	Chief Executive Officer & President

  
 APPROVED BY THE
STOCKHOLDERS OF 
 THE COMPANY ON MAY 5, 2004Amendment No.3

 EXHIBIT 10(iii)A(36) 
  
 AMENDMENT NO. 3 
 TO 
 ACUITY BRANDS, INC. 
 SUPPLEMENTAL DEFERRED SAVINGS PLAN 
  
 THIS AMENDMENT
made as of this 2nd day of October, 2004, by ACUITY BRANDS, INC. (the “Company”); 
  
 W I T N E S S E
T H: 
  
 WHEREAS, the Company maintains the Acuity
Brands, Inc. Supplemental Deferred Savings Plan (“Plan”); and 
  
 WHEREAS, the Company desires to amend the Plan to change the way all or a portion of the amounts credited to a Participant’s Account are deemed to be invested; 
  
 NOW, THEREFORE, for and in consideration of the premises, the Plan is hereby amended, effective as of December 31, 2004, as
follows: 
  
 1. 
  
 Section 4.1(a) is hereby amended by deleting the last two sentences of the
present section, and substituting the following in lieu thereof: 
  
 “The amounts credited to a Participant’s Deferral Subaccount shall be credited with earnings as provided in Section 4.1(d).” 
  
 2. 
  
 Section 4.1(b) is hereby amended by deleting the second paragraph of the present section, and substituting the following in lieu thereof: 
  
 “The amounts credited to a Participant’s Matching Subaccount shall
be credited with earnings as provided in Section 4.1(d).” 

 3. 
  
 Section 4.1(c) is hereby amended by deleting the second paragraph of the present section, and substituting the following in lieu thereof: 
  
 “The amounts credited to a Participant’s Supplemental Subaccount
shall be credited with earnings as provided in Section 4.1(d).” 
  
 4. 
  
 Section 4.1(d) is hereby amended by deleting the
present section in its entirety and substituting the following in lieu thereof: 
  
 “(d) Crediting of Earnings on Accounts. Effective as of December 31, 2004, the Participant’s Deferral Subaccount, Matching Subaccount and Supplemental Subaccount, and any other subaccounts maintained
for the Participant under the Plan, except a Participant’s Deferred Vested Value Subaccount, which shall continue to be treated as provided in Section 4.1(f), shall be deemed to be invested in cash. On December 31, 2004, any amounts credited to
a Participant’s subaccounts which were previously deemed to be invested in Shares shall be converted to cash based upon the Fair Market Value of a Share on December 31, 2004. 
  
 For Plan years commencing on or after January 1, 2005, unless the Company elects to provide that amounts credited to a
Participant’s Account shall be deemed to be invested in one or more investment funds designated by the Company, the Participant’s Account (including all subaccounts, except the Participant’s Deferred Vested Value 

 Subaccount) shall be credited with interest at the Prime Rate on each Annual Valuation Date and at such
other times, if any, as may be determined by the Plan Administrator. If the Company provides that all or part of a Participant’s Account shall be deemed to be invested in investment funds, the Participant may be provided the right to designate
the investment funds (which may include the right to designate different investment funds for different subaccounts and Class Years) that will be used to value his Account on a form provided for such purpose by the Plan Administrator (or through
electronic means) and the earnings (or loss) used to value the Participant’s Account (or subaccount) for a valuation period will be determined based upon the Participant’s investment fund election that is in effect for such period. The use
of a Participant’s investment funds election is solely for the purpose of valuing his Account and shall not in any way require the Company, an Employer or any trustee of assets designated as available to pay Plan benefits to make such
investments.” 
  
 5. 
  
 Section 4.3(a)(i) is hereby amended by adding the following sentence to the
end of the present section: 
  
 “All amounts shall be paid
in cash.” 
  
 6. 
  
 Section 4.3(a)(ii) is hereby amended by changing the reference in the last
sentence of the present section from “Section 4.1(a)” to “Section 4.1(d).” 

 7. 
  
 Section 4.3(a)(iii)(A) is hereby amended by changing the reference in the last sentence of the present section from “Section 4.1(a)” to
“Section 4.1(d).” 
  
 8. 
  
 Section 4.3(b) is hereby amended by deleting the last sentence of the present
section and substituting the following is lieu thereof: 
  
 “All amounts shall be paid in cash.” 
  
 9.

  
 Section 4.1A(a) is hereby amended by deleting the first
sentence immediately following the vesting schedule and substituting the following in lieu thereof: 
  
 “The amounts credited to a Participant’s Make-Up Contribution Subaccount shall be credited with earnings as provided in Section 4.1(d).”

  
 10. 
  
 Section 4.1(B)(a) is hereby amended by deleting the fourth sentence of the
present section and substituting the following in lieu thereof: 
  
 “The amounts credited to a Participant’s SERP Make-Up Contribution Subaccount shall be credited with earnings as provided in Section 4.1(d).” 
  
 11. 
  
 The within and foregoing amendments to the Plan shall be effective as of December 31, 2004. Except as hereby modified, the Plan shall remain in full force
and effect. 

 IN WITNESS WHEREOF, the Company has executed this Amendment No. 3 as of the date first written above.

  

			
	 ACUITY BRANDS, INC.

		
	 By:
	 	 /s/ Vernon J. NagelLetter Agreement between Larry E. Reimert and Dril-Quip, Inc.

 Exhibit 10.1 
  
 October 28, 2004 
  
 Dril-Quip, Inc. 
 13550 Hempstead Hwy. 
 Houston, Texas 77040 
  
 Gentlemen: 
  
 In light of the
current uncertainty surrounding stock option expensing, I hereby waive my right to receive an award of stock options in 2004 pursuant to Section 3.C of the Employment Agreement (the “Employment Agreement”) dated as of October 17, 1997
between myself and Dril-Quip, Inc. (the “Company”). Additionally, I hereby waive any right to terminate the Employment Agreement for Good Reason (as defined in the Employment Agreement) specifically caused by the Company’s failure to
award such stock options in the year 2004 only. No other conditions or rights of the contract are waived and the right to receive an award of stock options is only waived for the year 2004. 
  

	
	 Very truly yours,

	
	 /s/ Larry E. Reimert

  
 Accepted and Agreed as of the

 date first written above. 
  

			
	 DRIL-QUIP, INC.

		
	 By:
	 	 /s/ Gary D. Smith

	 Name:
	 	 Gary D. Smith

	 Title:
	 	 Co-CEO

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