Document:

EX-10.24

 Exhibit 10.24 

 
 Private & Confidential 

 
 Dr P Boon 
 Hill View 
 Davenport Road 
 Lower Heswall 
 Wirral 
 CH60 9JD 
  

October 15 2015 
  
 Dear Phil, 
  
 I am
writing to you on behalf of the Compensation Committee of the Innospec Inc. Board to confirm the following changes to your terms and conditions and contract of employment, following the recent reorganization. These changes will be effective from
November 1, 2015. 
  

	 	1.	You will assume the role of Chief Operating Officer for Innospec Inc, reporting to Patrick Williams, President and Chief Executive Officer. In this role, you will be
responsible for leading the global Fuel Specialties business and will have an overseeing role for Performance Chemicals and Oilfield Specialties. 

  

	 	2.	Your basic salary will increase to £250,000 per annum 

  

	 	3.	Your bonus potential under the MICP program will remain unchanged 

 

	 	4.	In addition to the above, you will be eligible for an award of an option to acquire 20,000 shares in Innospec Inc. The options are granted at zero market price and will
vest as follows 

  

	 	a.	30% after 3 years from the date of grant. 

  

	 	b.	30% after 4 years from the date of grant 

  

	 	c.	40% after 5 years from the date of grant 

  

The vesting of the options will be subject to the following measures: 
  

	 	a)	You are still employed by Innospec Limited or any other Innospec company on the relevant vesting date and have not resigned from your employment with the company

  

	 	b)	Achievement of a minimum of a 3 (Good Performer) performance rating in each relevant year 

  

	 	5.	You are currently required to give the Company 6 months’ notice in writing of termination of your employment and the Company has the right to terminate your
employment by giving you twelve months’ notice in writing. From November 1 2015 until December 31 2020, the notice of termination of employment you are required to give to the Company will increase to 12 months’ notice in
writing. This will revert to 6 months’ notice from you in writing from January 1 2021. The notice of termination of employment the Company are required to give to you will remain 12 months throughout this period. 

 
 Please confirm your acceptance of these changes to your terms and conditions
of employment by signing and returning the attached copy of this letter. 

 I would like to take this opportunity on behalf of the Board to congratulate you on your promotion and to
wish you every success in your new role. 
  

	
	Yours sincerely
	
	

	Joachim Roeser
	 Chairman of the Compensation Committee
 Innospec IncEX-10.4.1

 Exhibit 10.4.1 

Amendment to Executive Employment Agreement 

This Amendment to Executive Employment Agreement, effective this 9th day of February 2016 (the “Amendment”), is an
Amendment to the Amended and Restated Executive Employment Agreement between Brian E. Mueller (“Executive”) and Grand Canyon Education, Inc. (“Company”), collectively referred to herein as the
“Parties”, entered into effective July 1, 2012 (the “Original Agreement”). 

RECITALS 
 WHEREAS,
Executive and Company entered into the Original Agreement effective July 1, 2012, which is scheduled to expire by its terms on June 30, 2016; and 

WHEREAS, Executive and Company wish to extend the term of the Original Agreement through June 30, 2020; 

NOW, THEREFORE, in consideration of the mutual promises herein contained, it is hereby agreed: 

1. Term. Section 3.1 of the Original Agreement is hereby amended and restated in its entirety to state as follows: 

“3.1 Term. The employment relationship pursuant to this Agreement shall continue in effect for a period through June 30, 2020,
unless sooner terminated in accordance with Section 7.” 
 2. Continuing Effect. All other terms and conditions of
the Original Agreement, unless specifically amended pursuant to this Amendment, remain in full force and effect. 
 IN WITNESS WHEREOF, the
parties have executed this Amendment by their duly authorized representatives as of the date hereof. 
  

			
	 Grand Canyon Education, Inc.
  

By: /s/ Dan Bachus
 Name: Dan Bachus

Title: Chief Financial Officer
	  	     
  

By: /s/ Brian Mueller
 Name: Brian E. MuellerEX-10.5.1

 Exhibit 10.5.1 

Amendment to Executive Employment Agreement 

This Amendment to Executive Employment Agreement, effective this 9th day of February 2016 (the “Amendment”), is an
Amendment to the Amended and Restated Executive Employment Agreement between W. Stan Meyer (“Executive”) and Grand Canyon Education, Inc. (“Company”), collectively referred to herein as the
“Parties”, entered into effective July 1, 2012 (the “Original Agreement”). 

RECITALS 
 WHEREAS,
Executive and Company entered into the Original Agreement effective July 1, 2012, which is scheduled to expire by its terms on June 30, 2016; and 

WHEREAS, Executive and Company wish to extend the term of the Original Agreement through June 30, 2020; 

NOW, THEREFORE, in consideration of the mutual promises herein contained, it is hereby agreed: 

1. Term. Section 3.1 of the Original Agreement is hereby amended and restated in its entirety to state as follows: 

“3.1 Term. The employment relationship pursuant to this Agreement shall continue in effect for a period through June 30, 2020,
unless sooner terminated in accordance with Section 7.” 
 2. Continuing Effect. All other terms and conditions of
the Original Agreement, unless specifically amended pursuant to this Amendment, remain in full force and effect. 
 IN WITNESS WHEREOF, the
parties have executed this Amendment by their duly authorized representatives as of the date hereof. 
  

			
	 Grand Canyon Education, Inc.
  

By: /s/ Brian Mueller
 Name: Brian Mueller

Title: Chief Executive Officer, Director and President
 Grand
Canyon University
	  	     
  

By: /s/ W. Stan Meyer
 Name: W. Stan MeyerEX-10.6.1

 Exhibit 10.6.1 

Amendment to Executive Employment Agreement 

This Amendment to Executive Employment Agreement, effective this 9th day of February 2016 (the “Amendment”), is an
Amendment to the Amended and Restated Executive Employment Agreement between Daniel E. Bachus (“Executive”) and Grand Canyon Education, Inc. (“Company”), collectively referred to herein as the
“Parties”, entered into effective July 1, 2012 (the “Original Agreement”). 

RECITALS 
 WHEREAS,
Executive and Company entered into the Original Agreement effective July 1, 2012, which is scheduled to expire by its terms on June 30, 2016; and 

WHEREAS, Executive and Company wish to extend the term of the Original Agreement through June 30, 2020; 

NOW, THEREFORE, in consideration of the mutual promises herein contained, it is hereby agreed: 

1. Term. Section 3.1 of the Original Agreement is hereby amended and restated in its entirety to state as follows: 

“3.1 Term. The employment relationship pursuant to this Agreement shall continue in effect for a period through June 30, 2020,
unless sooner terminated in accordance with Section 7.” 
 2. Continuing Effect. All other terms and conditions of
the Original Agreement, unless specifically amended pursuant to this Amendment, remain in full force and effect. 
 IN WITNESS WHEREOF, the
parties have executed this Amendment by their duly authorized representatives as of the date hereof. 
  

			
	 Grand Canyon Education, Inc.
  

By: /s/ Brian Mueller
 Name: Brian Mueller

Title: Chief Executive Officer, Director and President
 Grand
Canyon University
	  	     
  

By: /s/ Dan Bachus
 Name: Daniel E. BachusEX-10.7.1

 Exhibit 10.7.1 

Amendment to Executive Employment Agreement 

This Amendment to Executive Employment Agreement, effective this 9th day of February 2016 (the “Amendment”), is an
Amendment to the Amended and Restated Executive Employment Agreement between Joseph N. Mildenhall (“Executive”) and Grand Canyon Education, Inc. (“Company”), collectively referred to herein as the
“Parties”, entered into effective July 1, 2012 (the “Original Agreement”). 

RECITALS 
 WHEREAS,
Executive and Company entered into the Original Agreement effective July 1, 2012, which is scheduled to expire by its terms on June 30, 2016; and 

WHEREAS, Executive and Company wish to extend the term of the Original Agreement through June 30, 2020; 

NOW, THEREFORE, in consideration of the mutual promises herein contained, it is hereby agreed: 

1. Term. Section 3.1 of the Original Agreement is hereby amended and restated in its entirety to state as follows: 

“3.1 Term. The employment relationship pursuant to this Agreement shall continue in effect for a period through June 30, 2020,
unless sooner terminated in accordance with Section 7.” 
 2. Continuing Effect. All other terms and conditions of
the Original Agreement, unless specifically amended pursuant to this Amendment, remain in full force and effect. 
 IN WITNESS WHEREOF, the
parties have executed this Amendment by their duly authorized representatives as of the date hereof. 
  

			
	 Grand Canyon Education, Inc.
  

By: /s/ Brian Mueller
 Name: Brian Mueller

Title: Chief Executive Officer, Director and President
 Grand
Canyon University
	  	     
  

By: /s/ Joseph N. Mildenhall
 Name: Joseph N.
MildenhallEX-10.8.1

 Exhibit 10.8.1 

Amendment to Executive Employment Agreement 

This Amendment to Executive Employment Agreement, effective this 9th day of February 2016 (the “Amendment”), is an
Amendment to the Executive Employment Agreement between Brian M. Roberts (“Executive”) and Grand Canyon Education, Inc. (“Company”), collectively referred to herein as the
“Parties”, entered into effective July 30, 2012 (the “Original Agreement”). 

RECITALS 
 WHEREAS,
Executive and Company entered into the Original Agreement effective July 30, 2012, which is scheduled to expire by its terms on July 30, 2016; and 

WHEREAS, Executive and Company wish to extend the term of the Original Agreement through June 30, 2020; 

NOW, THEREFORE, in consideration of the mutual promises herein contained, it is hereby agreed: 

1. Term. Section 3.1 of the Original Agreement is hereby amended and restated in its entirety to state as follows: 

“3.1 Term. The employment relationship pursuant to this Agreement shall continue in effect for a period through June 30, 2020,
unless sooner terminated in accordance with Section 7.” 
 2. Continuing Effect. All other terms and conditions of
the Original Agreement, unless specifically amended pursuant to this Amendment, remain in full force and effect. 
 IN WITNESS WHEREOF, the
parties have executed this Amendment by their duly authorized representatives as of the date hereof. 
  

			
	 Grand Canyon Education, Inc.
  

By: /s/ Brian Mueller
 Name: Brian Mueller

Title: Chief Executive Officer, Director and President
 Grand
Canyon University
	  	     
  

By: /s/ Brian M. Roberts
 Name: Brian M. Roberts

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