EXHIBIT A FIRST AMENDMENT TO THE MARK THIERER EMPLOYMENT AGREEMENT

Exhibit 10.15

EXHIBIT A

FIRST AMENDMENT TO THE
MARK THIERER EMPLOYMENT AGREEMENT

WHEREAS , Mark Thierer (the “ Executive ”) and SXC Health Solutions Corporation and its subsidiary, SXC Health Solution, Inc. (collectively, the “ Company ”) executed an employment agreement (“ Agreement ”) effective as of June 30, 2008;

WHEREAS , the Board of Directors of the Company (the “ Board ”), through its Compensation Committee (the “ Committee ”), has determined that the Agreement should be amended to fully satisfy the requirements of Section 409A of the Internal Revenue Code of 1986, as amended (“ Section 409A ”);

WHEREAS, the Committee and Executive desire to amend the Agreement to fully satisfy the requirements of Section 409A; and

WHEREAS, the Committee and Executive desire to execute such amendment on or before December 31, 2008 to comply with the effective date of the final Treasury regulations under Section 409A.

NOW, THEREFORE, BE IT RESOLVED, in accordance with the foregoing recitals, the Agreement is amended as follows:

     “(payable at the same time other members of the Senior Executive Team are paid their respective incentive compensation bonuses which shall be in no event later than March 15 following the close of the Company’s fiscal year).”

     “(c) Termination by Company Without Cause/Resignation for Good Reason . If the Triggering Event was a Termination by the Company Without Cause (that is not a Termination Arising Out of a Change of Control) or a Resignation for Good Reason, then Executive shall be entitled to receive (i) Executive’s Annual Base Compensation and accrued but unpaid vacation through the date thereof; (ii) payment of Executive’s Target Incentive Compensation Bonus for the year in which the termination occurred, if any, pro rated to Executive’s date of termination (payable at the same time other members of the Senior Executive Team are paid their respective incentive compensation bonuses which shall be in no event later than March 15 following the close of the Company’s fiscal year); and (iii) the Severance Benefit. For purposes of this Subsection 5.2(c), any payment or benefit that the Executive receives shall be treated as a “separate payment” for the application of Section 409A of the Internal Revenue Code (“Code”). If the Executive receives any payment or benefit due to his Termination by the Company Without Cause or Resignation for Good Reason, Company will determine if the involuntary separation

from service exception of Treasury regulation §1.409A-1(b)(9)(iii) applies, and, if it does apply, Executive shall receive that portion of the Severance Benefit which satisfies the involuntary separation from service exception within thirty (30) days of Executive signing a Separation Agreement and General Release similar to that attached hereto as Exhibit A. If the Compensation Committee determines that the Executive is a Specified Em