Form Type: 4

SEC EDGAR Link
Accession Number:0001057352-18-000029
Date:2018-03-02
Issuer: COSTAR GROUP INC (CSGP)
Original Submission Date:

Reporting Person:

LINNINGTON MATTHEW
C/O COSTAR GROUP, INC.
1331 L STREET, NW WASHINGTON, DC 20005

Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
Title of SecurityTransaction Date2a. Deemed Execution Date Transaction CodeSharesAcquired or DisposedPrice per share 5. Amount of Securities Beneficially Owned Following Reported Transaction 6. Ownership Form Direct or IndirectNature of Indirect Ownership
COMMON STOCK, PAR VALUE $0.01 PER SHARE 2018-03-02 M 3,768 a $193.69 35,192 direct
COMMON STOCK, PAR VALUE $0.01 PER SHARE 2018-03-02 M 3,000 a $182.75 38,192 direct
COMMON STOCK, PAR VALUE $0.01 PER SHARE 2018-03-02 S 6,768 d $348.19 31,424 direct
COMMON STOCK, PAR VALUE $0.01 PER SHARE 2018-03-02 S 1,153 d $348.45 30,271 direct
COMMON STOCK, PAR VALUE $0.01 PER SHARE 2018-03-05 F 1,581 d $348.28 28,690 direct
Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, convertible securities
Title of Derivative Security Conversion or Exercise Price of Derivative Security Transaction Date Deemed Execution Date Transaction Code Number of Derivative Securities Acquired (A) or Disposed of (D) Date ExercisableExpiration Date Title and Amount of Securities Underlying Derivative Security Price of Derivative Security Number of derivative Securities Beneficially Owned Following Reported Transaction(s) Ownership Form: Direct (D) or Indirect (I) Nature of Indirect Beneficial Ownership
OPTION TO ACQUIRE COMMON STOCK 193.69 2018-03-02 deemed execution date M 3,768 (d) 2025-03-04 common stock 3,768 $193.69 2,400 direct
OPTION TO ACQUIRE COMMON STOCK 182.75 2018-03-02 deemed execution date M 3,000 (d) 2026-03-10 common stock 3,000 $182.75 6,000 direct
Footnotes
IDfootnote
f1 represents all shares of common stock owned, consisting of 7,803 shares of common stock and 27,389 shares of common stock subject to unvested restricted stock grants.
f2 represents all shares of common stock owned, consisting of 10,803 shares of common stock and 27,389 shares of common stock subject to unvested restricted stock grants.
f3 average based on sales prices ranging from $347.47 to $349.24.
f4 represents all shares of common stock owned, consisting of 4,035 shares of common stock and 27,389 shares of common stock subject to unvested restricted stock grants.
f5 average based on sales prices ranging from $347.84 to $349.24.
f6 represents all shares of common stock owned, consisting of 2,882 shares of common stock and 27,389 shares of common stock subject to unvested restricted stock grants.
f7 represents all shares of common stock owned, consisting of 5,375 shares of common stock and 23,315 shares of common stock subject to unvested restricted stock grants.
f8 the option vests in three equal installments on march 5, 2016, march 5, 2017 and march 5, 2018.
f9 the option vests in three equal installments on march 11, 2017, march 11, 2018 and march 11, 2019.
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