CoStar Group Inc. – Material Contracts Watch

from 10-K 2 pages CoStar Group, Inc. Non-Employee Director Compensation Program

from 10-K 11 pages Amended and Restated CoStar Group, Inc. Management Stock Purchase Plan

from 10-K 8 pages 1 US-Docs\168320290.5 CoStar Group, Inc. 2026 Cash Incentive Plan 1. Purpose. the Purpose of This Plan Is to Provide Certain Employees of CoStar Group, Inc. and Its Affiliates With Incentive Compensation Based Upon the Level of Achievement of Financial, Business and/or Other Performance Criteria. 2. Definitions. (A) “Affiliate” Means (I) Any Entity That, Directly or Indirectly, Is Controlled by the Company and (II) Any Entity in Which the Company Has a Significant Equity Interest. (B) “Board” Means the Board of Directors of the Company. (C) “Cash Incentive” Means a Cash Payment Made Pursuant to This Plan With Respect to a Particular Performance Period, Determined Pursuant to Section 8 Below. (D) “Cash Incentive Formula” Means as to Any Performance Period, the Formula Established by the Committee Pursuant to Section 6 in Order to Determine the Cash Incentive Amounts, if Any, to Be Paid to Participants Based Upon the Level of Achievement of Targeted Goals for the Selected Performance Measures. the Formula May Differ From Participant to Participant or Business Group to Business Group. (E) “Code” Means the Internal Revenue Code of 1986, as Amended. (F) “Committee” Means the Compensation Committee of the Board or Any Subcommittee Thereof Formed by the Compensation Committee for the Purpose of Acting as the Committee Hereunder. (G) “Company” Means CoStar Group, Inc., a Delaware Corporation. (H) “Fiscal Year” Means the Calendar Year. (I) “Officer” Means an Officer of the Company as Defined in Rule 3b-7 Under the Securities Exchange Act of 1934, as Amended. (J) “Participant” Means an Officer or Such Other Individuals Selected by the Committee. (K) “Performance Measure” Means Any One or More Performance Criteria, Selected by the Committee Which May Be, Either Individually, Alternatively or In

from 10-K 9 pages Material contract

from 8-K 16 pages Material contract

from 8-K 3 pages In Witness Whereof, the Parties Have Executed This Second Amendment as of the Day and Year First Written Above. CoStar Realty Information, Inc. By: /S/ Louise S. Sams Name: Louise S. Sams Title: Director /S/ Andrew C. Florance Andrew C. Florance

from 8-K 16 pages Material contract

from 10-Q 6 pages Material contract

from 10-Q 9 pages Material contract

from 10-Q 9 pages Material contract

from 8-K 108 pages Sydney | Melbourne | Perth Scheme Implementation Deed

from 8-K 20 pages Support Agreement

from 8-K 25 pages Support Agreement

from 10-K 3 pages CoStar Group, Inc. Second Amended and Restated Employee Share Purchase Plan Canadian Addendum

from 10-K 3 pages Costar Group, Inc. Second Amended and Restated Employee Share Purchase Plan Canadian Addendum

from 10-Q 178 pages First Amendment

from 8-K 93 pages Agreement and Plan of Merger by and Among Ten-X Holding Company, Inc., Costar Realty Information, Inc., Crescendo Sub, Inc., and the Representative Named Herein May 13, 2020

from 8-K 78 pages Asset Purchase Agreement by and Among Rentpath Holdings, Inc. CSGP Holdings, LLC Costar Group, Inc. (Solely for Purposes of Section 5.13) and the Other Sellers Named Herein Dated as of the Petition Date

from 8-K 99 pages Securities Purchase Agreement by and Among Costar Group, Inc., Costar Realty Information, Inc., Costar Portfolio Strategy, LLC, Str, Inc., Str Global, Ltd, the Seller Parties Hereto, and Randell Smith, in His Capacity as Sellers’ Representative Dated September 30, 2019

from 10-Q 1 page First Amendment to the Costar Group, Inc. 2016 Stock Incentive Plan