Document:

EX-10.4

 Exhibit 10.4 
  

			
	

	 	The Smart Timing ChoiceTM

 June 14, 2016 
 Subject:
Amendment to Terms of Employment letter 
 Dear Rajesh, 
 This
letter is to memorialize our agreement to amend your New Terms of Employment letter dated October 21, 2014 (the “Letter”). At page 3 of the Letter, the following language “The Company agrees, however, that regardless of your
employment status, you will remain in an advisory capacity to provide advisory services of not more than 10 hours each month through December 2018” shall be amended and replaced with “MegaChips and the Company agree, however, that
regardless of your employment status, you will remain in an advisory capacity to provide advisory services of not more than 10 hours each month through June 30, 2020 to either MegaChips or Company at the option of MegaChips.” 

All other terms in the Letter remain unchanged. 
 To confirm
your agreement to this amendment to the Letter, please review, sign and return a copy of this amendment. 
 Sincerely, 

 

	
	/s/ Akira Takata
	Akira Takata
	Chief Executive Officer, MegaChips Corporation

 I have read and agree to the above amendment to my New Terms of Employment letter dated October 21, 2014. I further
understand that my employment with SiTime remains at-will. 
  

			
	 /s/ Rajesh Vashist
	 	 6/21/16

	Rajesh Vashist	 	Date

 990 Almanor Avenue, Sunnyvale, CA 94085, USA   408.328.4400 (Main)   408.328.4439 (Fax)
  www.sitime.comEX-10.5

 Exhibit 10.5 
  

 
 September 24, 2019 

Arthur D. Chadwick 
  

	Re:	 Offer of Employment 

Dear Art: 
 I am delighted to offer you a regular full-time
position as Executive Vice President, Chief Financial Officer, reporting to me. I deeply believe we have an exceptional opportunity over the next decade to build an iconic semiconductor company that can change the world. And I know
that you share this vision. I am eagerly looking forward to our future collaboration at SiTime Corporation (“SiTime” or the “Company”), a wholly owned subsidiary of MegaChips Corporation.

Your compensation will include an annual base salary of $300,000, (paid semi-monthly at a rate of $12,500), less applicable payroll deductions and all
required withholdings. 
 You will be eligible to participate in our Exemplary Performance Bonus Plan. Under this plan, you will be eligible to receive an
annual bonus of up to $100,000, to be paid out on a quarterly basis during the month following the end of each quarter; provided, that you (1) meet your pre-determined MBO objectives and goals for
the applicable quarter, and (2) are an employee in good standing on the applicable payment date. 
 You will be eligible to participate in the
Company’s long-term incentive plans as may be adopted and in effect from to time. The Company intends to implement a stock option plan following the closing of an initial public offering (IPO). Subject to the approval of the Board of
Directors of SiTime and the closing of an IPO, you would be eligible for a grant of equity equal to 0.8% of outstanding shares of common stock, of which one-fourth
(1⁄4) will be issued on the one year anniversary date of your start date, and one-sixteenth (1/16) each quarter thereafter.
Any grant of options and RSUs would be subject the terms and conditions approved by the Board and set forth in the award agreements and applicable plan. 

Please note that, as is typical with growth companies like ours, our equity program is under ongoing review and our Board will determine in its discretion
whether you will be granted any such equity awards and the terms of any such award in accordance with the terms of any applicable plan or arrangement that may be in effect from time to time. 

As the company grows and implements future compensation programs, you will be eligible to participate in these programs. 

You will also be eligible for change in control severance benefits subject to approval of the Board and the terms of an approved agreement. 

5451 Patrick Henry Drive, Santa Clara, California 95054 • 408.328.4400 • sitime.com 

 

 
  

 As a full time, regular employee of SiTime, you will be eligible to participate in our benefits programs.
Benefits become effective on the first day of the month following date of hire. These programs will be outlined for you when you begin your employment. 

Your continued employment is also contingent upon reading and signing the Proprietary Information and Invention Assignment Agreement. Please review and sign
this document within your first week of employment with SiTime. 
 SiTime is an at-will employer and this offer of
employment does not constitute a contract of employment. If employed by SiTime, your employment is for no definite or determinable period and may be terminated at any time, with or without prior notice, at the option of either you or the company,
and not for a specified duration. 
 This offer is contingent upon successfully passing a background check clearance, reference check, and satisfactory
proof of your right to work in the United States. You agree to assist as needed and to complete any documentation at the Company’s request to meet these conditions. Pursuant to the Immigration Reform and Control Act of 1986, the Company is
required to verify within the first three days of employment an individual’s employment eligibility in the United States. Documentation acceptable by the Immigration and Naturalization Service is listed on the attached I-9 Employment Eligibility Verification Form. To insure compliance with the Act, please bring original copies of your documentation on your first day of employment. All job offers are contingent upon successful
completion of the I-9 verification process. 
 This offer will expire on September 27, 2019 if not accepted,
signed and returned to SiTime Corporation by this date. 
 We are excited to offer you the challenge of contributing to SiTime’s growth. It is our
sincere wish and intention that you find your experience here exciting and rewarding. 
 Sincerely, 

/s/ Rajesh Vashist 
 Rajesh Vashist 

CEO 
 I have read and accept the above offer of employment: 

 

							
	Accepted by:	 	/s/ Arthur D. Chadwick	 		 	9/26/2019
		 	  
 Arthur D. Chadwick
	 		 	  
 Date

				
	Start Date:	 	Sept. 30, 2019	 		 	
				
	Enclosures:	 	SiTime Confidential Information and Invention Assignment Agreement I-9 Employment Eligibility Verification Form	 		 	

  
 5451 Patrick Henry Drive,
Santa Clara, California 95054 • 408.328.4400 • sitime.comEX-10.6

 Exhibit 10.6 
  

			
	

	 	The Smart Timing ChoiceTM

 January 27, 2018 
 Lionel
Bonnot 
  

	Re:	 Offer of Employment 

Dear Lionel: 
 SiTime is pleased to offer you a regular
full-time position of Senior Vice President, Business Development, reporting to the CEO. We have worked so successfully together in the past, that I am eagerly looking forward to our future collaboration. I believe we have an exceptional opportunity
over the next decade to build an iconic company that can change the world. Your start date will be the 5th February 2018. 

SiTime Corporation (“SiTime” or the “Company”), is a wholly owned subsidiary of MegaChips Corporation, and the offer comes from it. 

Your compensation will include an annual base salary of $260,000, (paid semi-monthly at a rate of $10,833.34), less applicable payroll deductions and all
required withholdings. 
 You will be eligible to participate in our Exemplary Performance Bonus Plan. Under this plan, you will be eligible to receive an
annual bonus of up to $100,000, to be paid out on a quarterly basis during the month following the end of each quarter; provided, that you (1) meet your pre-determined MBO objectives and goals for the applicable quarter, and (2) are
an employee in good standing on the applicable payment date. 
 As a full time, regular employee of SiTime, you will be eligible to participate in our
benefits programs. Benefits become effective on the first day of the moth following date of hire. These programs will be outlined for you when you begin your employment. 

Your continued employment is also contingent upon reading and signing the Proprietary Information and Invention Assignment Agreement. Please review and sign
this document within your first week of employment with SiTime. 
 SiTime is an at-will employer and this offer of
employment does not constitute a contract of employment. If employed by SiTime, your employment is for no definite or determinable period and may be terminated at any time, with or without prior notice, at the option of either you or the company,
and not for a specified duration. 
 This offer is contingent upon successfully passing a background check clearance, reference check, and satisfactory
proof of your right to work in the United States. You agree to assist as needed and to complete any documentation at the Company’s request to meet these conditions. Pursuant to the Immigration Reform and Control Act of 1986, the Company is
required to verify within the first three days of employment an individual’s employment eligibility in the United States. 

  
 5451 Patrick Henry Drive,
Santa Clara, California 95054  ●  408.328.4400  ●  sitime.com 

 Documentation acceptable by the Immigration and Naturalization Service is listed on the attached I-9 Employment Eligibility Verification Form. To insure compliance with the Act, please bring original copies of your documentation on your first day of employment. All job offers are contingent upon successful
completion of the I-9 verification process. 
 This offer will expire on January 29, 2018 if not accepted,
signed and returned to SiTime Corporation by this date. 
 I am excited to offer you the challenge of contributing to SiTime’s growth. It is my sincere
wish and intention that you find your experience here exciting and rewarding. 
  

	
	Sincerely,
	
	/s/ Rajesh Vashist
	Rajesh Vashist
	CEO

 I have read and accept the above offer of employment: 

 

							
	Accepted by:	  	 /s/ Lionel Bonnot
	  		  	 1/29/2018

		  	Lionel Bonnet	  		  	Date
				
	Start Date:	  	 2/5/2018
	  		  	
		
	Enclosures:	  	SiTime Confidential Information and Invention Assignment Agreement I-9 Employment Eligibility Verification Form

  
 5451 Patrick Henry Drive,
Santa Clara, California 95054  ●  408.328.4400  ●  sitime.com

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