Document:

EX-10.4

 Exhibit 10.4 

25 April 2018 
 David Gustafson 

Dear David, 
 Mattersight Corporation. Employment Post
Acquisition by NICE Systems, Inc.(“NICE”) 
 We have an exciting opportunity ahead of us with the acquisition of Mattersight Corporation (the
Company) by NICE. Mattersight Corporation has incredible talent and together, we will transform the customer analytics market. 
 We are writing to confirm
your terms of employment following the acquisition. This letter agreement amends the employment agreement between you and the Company dated September 8, 2008, as amended (“Employment Agreement”) and will be effective upon (and subject
to) the closing of the acquisition. The terms of the Employment Agreement will remain in full force and effect unless amended by this letter agreement. 
  

	 	a)	The Company will be a subsidiary of NICE. 

  

	 	b)	You will be paid salary at the rate of $260,000 USD per annum. 

  

	 	c)	The Bonus provision of the Employment Agreement is replaced by the following: “Management by Objectives (“MBO”): You will be entitled to participate in the annual NICE MBO Plan. This is a bonus plan based
on company financials, unit financials, unit KPIs and an individual performance section. Your Annual MBO Target for 2018 is $160,000 USD prorated for the portion of 2018 between the closing and the end of the year.” You will also be paid any
bonus awarded by the Mattersight board of directors in accordance with your employment agreement and any applicable bonus plan that are in effect before you sign this letter, for work performed in 2018 before the closing, which will be paid in April
2019. 

  

	 	d)	The Company will recommend to the NICE Ltd. board of directors (“Board”) that you be granted 15,000 NICE Ltd. Restricted Stock Units (“RSUs”) after the closing, subject to approval by the Board. The
RSUs will have an exercise price per share of approximately NIS 1.00 (approximately USD 0.25) and, when vested and exercised are converted into a NICE Ltd. share. Once the grant is approved, you will receive the formal grant agreement with
additional details which will require your signature. The grant will be subject to the terms of the NICE Ltd. 2016 Share Incentive Plan (“2016 Plan”) and the grant agreement, which will control in the event of a conflict with this letter.
Sixty percent (60%) of the RSUs will vest in two tranches subject to your continued employment at the Company or any other NICE Group (as defined below) company at the time of vesting (“Time Based RSUs”). The Time-Based RSUs will vest as
follows: the first tranche in the amount of 30% of the Time-Based RSUs will vest 18 months after closing of the acquisition, and the second tranche in the amount of 70% of the Time-Based RSUs will vest 36 months after closing of the acquisition.
Forty percent (40%) of the RSUs will vest in two tranches based on both the achievement of NICE Ltd. performance criteria as set forth in the formal grant agreement (the “Performance Condition”) and your continued employed by the Company
or another NICE Group company through the vesting dates (“Performance-Based RSUs”). The Performance-Based RSUs will vest as follows: the first tranche in the amount of 30% of the Performance -Based RSUs will vest 18 months after closing of
the acquisition, and the second tranche in the amount of 70% of the Performance-Based RSUs will vest 36 months after closing of the acquisition (the “Time Conditions”). The Performance Condition constitutes a threshold condition for the
vesting of the Performance-Based RSUs; only once the Performance Condition is achieved, will the Performance-Based RSUs be subject to vesting in accordance with the Time Conditions. 

	 	e)	The Company will also recommend to the Board that you be granted an additional 1,500 RSUs after the closing, subject to approval by the Board. These RSUs will have an exercise price per share of approximately NIS 1.00
(approximately USD 0.25) and, when vested and exercised are converted into a NICE Ltd. share. Once the grant is approved, you will receive the formal grant agreement with additional details which will require your signature. The grant will be
subject to the terms of the 2016 Plan and the grant agreement, which will control in the event of a conflict with this letter. These RSUs will vest 12 months after the closing subject to your continued employment at the Company or any other NICE
Group company at the time of vesting. 

  

	 	f)	The Mattersight Stock Options and Restricted Stock you have been awarded will be treated in accordance with the provisions of the Merger Agreement that will be filed with the SEC. 

 

	 	g)	The Severance Benefits and Death and Disability Benefit provisions of the Employment Agreement are amended as follows: 

  

	 	i.	For purposes of calculating Severance Pay your “then-current base salary” will be deemed to be $325,000 per annum, and for purposes of calculating the Severance Bonus your “target bonus” will be
deemed to be $325,000. 

  

	 	ii.	The Severance Health Premium Reimbursements provision of the Employment Agreement is replaced by the following: “You will receive a lump sum severance payment equal to the estimated cost of COBRA coverage for you
and your dependents (if any) for a period of twelve (12) months (“Lump Sum Payment”).” 

  

	 	iii.	The Severance Pay, Severance Bonus and Lump Sum Payment will be paid on the first payroll date that is more than sixty days after the effective date of termination. 

 

	 	iv.	The Severance Benefits and Death and Disability Benefit provisions of the Employment Agreement will only apply to a termination without Cause or resignation for Good Reason that occurs before the second anniversary of
the closing, and on or after the second anniversary of the closing you will only be eligible for severance payments in accordance with NICE practices and policies in effect at that time. 

 

	 	h)	The Employment Agreement is further amended as follows: 

  

	 	i.	Due to the acquisition, we will be aligning Company titles with the NICE titling structure. Taking into consideration your current role and responsibilities, your updated title post-closing is VP and Head of
Mattersight. You will report to an officer of the Company designated by its board of directors. 

  

	 	ii.	You agree that if you resign without Good Reason before the one year anniversary of the closing, you will provide at least 90 days advance written notice of such resignation. 

 

	 	iii.	You agree that while you are employed by the Company you will not be employed by, or provide services to or on behalf of, any other business (including your own business), without the prior written approval of the
Company. 

  

	 	iv.	It will not violate the non-disparagement provision of the Employment Agreement for either you or Company representatives to make truthful statements to a government or regulatory
agency or in any administrative, judicial, mediation or arbitration proceeding. 

  

	 	v.	 You agree that the protections of Confidential Information, and the restrictions against competition, providing
competitive services and solicitation in Section 9 of the Employment Agreement, will apply to the entire business of NICE Ltd., as conducted through its direct and indirect subsidiaries and affiliates (the “Company Group”), and that
these expanded 

  
 2 

	 	
protections and restrictions are reasonable because of the access you will have to the trade secrets and Confidential Information, and the client relationships, of the Company Group. You further
agree that the references to “Company” in Section 9 are amended to refer to the “Company Group,” and that references to your employment by the Company Group will mean either the Company or any other member of the Company
Group that employs you. 

  

	 	vi.	By signing this letter agreement, you consent to all of the changes to your Employment Agreement. You and the Company acknowledge and agree that the Employment Agreement, as amended by this letter agreement, is binding
on you and the Company as of and after the closing, and that these amendments, including without limitation the updated title, do not constitute Good Reason (as defined in the Employment Agreement) for you to resign from employment.

 Your employment will remain on an “at-will” basis, which means either you or the Company
may terminate your employment at any time and for any reason, except as provided in Section h(ii) of this letter. All payments to you are subject to all applicable tax deductions and withholdings. 

We are confident that your experience and commitment will greatly contribute to the successful integration of the Company and the continued growth and
development of NICE in the future. We look 
 forward to working together. 
  

					
	 Yours sincerely
  
	 		 	
	/s/ Yaron Hertz	 		 	/s/ David B. Mullen
	Yaron Hertz	 		 	David B. Mullen
	 President, NICE Americas
 NICE Systems,
Inc.
	 		 	 Chief Financial Officer and Senior Vice President

Mattersight Corporation

 Acceptance 
 I understand and
accept the terms of this letter as stated. 
  

					
	/s/ David Gustafson	 		 	April 25, 2018
	Signature	 		 	Date

  
 3EX-4.1

 Exhibit 4.1 
  

	
	

 COMMON STOCK COMMON STOCK WITHOUT PAR VALUE Certificate Number ZQ00000000 SPIRIT OF TEXAS BANCSHARES, INC. INCORPORATED UNDER THE LAWS OF
THE STATE OF TEXAS THIS CERTIFIES THAT ** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
Alexander David Sample **** Mr. MR. Alexander David SAMPLE Sample **** Mr. Alexander David &Sample MRS. **** Mr. Alexander SAMPLE David Sample **** Mr. Alexander & David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
**** Mr. Alexander David Sample **** Mr Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David
Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander MR. David Sample SAMPLE **** Mr. Alexander David Sample ****
&Mr. Alexander MRS. David Sample SAMPLE **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
**** Mr. Alexander David Sample **** Mr. Sample **** Mr. Sample is the owner of 000000 ************** FULLY-PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF Spirit of Texas Bancshares, Inc. (hereinafter called the “Company”), transferable
on the books of the Company in person or by duly authorized attorney, upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby, are issued and shall be held subject to all of the provisions of the
Certificate of Formation, as amended, and the Bylaws, as amended, of the Company (copies of which are on file with the Company and with the Transfer Agent), to all of which each holder, by acceptance hereof, assents. This Certificate is not valid
unless countersigned and registered by the Transfer Agent and Registrar. Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. DATED DD-MMM-YYYY COUNTERSIGNED AND REGISTERED: COMPUTERSHARE TRUST
COMPANY, N.A. TRANSFER AGENT AND REGISTRAR, By AUTHORIZED SIGNATURE Secretary CUSIP/IDENTIFIER XXXXXX XX X Holder ID XXXXXXXXXX Insurance Value 00.1,000,000 Number of Shares 123456 DTC 12345678901234512345678 PO BOX 43004, Providence, RI 02940-3004
MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 Certificate Numbers Num/No Denom. . Total 1234567890/1234567890 11 1 1234567890/1234567890 22 2 1234567890/1234567890 33 3 1234567890/1234567890 44 4 1234567890/1234567890 55 5
1234567890/1234567890 66 6 Total Transaction 7 

 

 
 SPIRIT OF TEXAS BANCSHARES, INC. THE SHARES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,
AND MAY NOT BE SOLD, PLEDGED, OR OTHERWISE TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION THEREOF UNDER SUCH ACT OR AN OPINION OF COUNSEL, SATISFACTORY TO THE COMPANY AND ITS COUNSEL, THAT SUCH REGISTRATION IS NOT REQUIRED. THE COMPANY WILL FURNISH
WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS, A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE COMPANY AND THE QUALIFICATIONS, LIMITATIONS OR
RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS, AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES, WHICH ARE FIXED BY THE CERTIFICATE OF FORMATION OF THE COMPANY, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF
DIRECTORS OF THE COMPANY, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE COMPANY OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE
OWNER OF A LOST OR DESTROYED STOCK CERTIFICATE, OR HIS LEGAL REPRESENTATIVES, TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE ALLEGED LOSS OR
DESTRUCTION OF ANY SUCH CERTIFICATE. The following abbreviations, when used in the inscription on the face of thiscertificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM - as
tenants in common UNIF GIFT MIN ACT - Custodian (Cust) (Minor) TEN ENT - as tenants by the entireties under Uniform Gifts to Minors Act JT TEN - as joint tenants with right of survivorship and not as
tenants in common UNIF TRF MIN ACT -   Custodian (until age) (Cust) under Uniform Transfers to Minors Act (Minor) (State) Additional abbreviations may also be used though not in the above list. PLEASE INSERT SOCIAL
SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE For value received,hereby sell, assign and transfer unto (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) Shares of the capital stock represented by
the within Certificate, and do hereby irrevocably constitute and appoint Attorney to transfer the said stock on the books of the within-named Company with full power of substitution in the premises. Dated: 20 Signature(s) Guaranteed: Medallion
Guarantee Stamp THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan Associations and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO
S.E.C. RULE 17Ad-15. Signature: Signature: Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate, in every particular, without alteration or
enlargement, or any change whatever.

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