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Filing Details

Accession Number:: 0001057352-17-000015
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2017-03-02 18:15:09
Reporting Period:: 2017-02-28

Filing Date:: 2017-03-02
Accepted Time:: 2017-03-02 18:15:09
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1057352	Costar Group Inc	CSGP	Services-Business Services, Nec (7389)	522091509

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1218615	Francis Carchedi	C/O Costar Group, Inc. 1331 L Street, Nw Washington DC 20005	Executive Vp, Corp. Dev.	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock, Par Value $0.01 Per Share	Disposition	2017-02-28	630	$203.99	23,366	No	4	F	Direct
Common Stock, Par Value $0.01 Per Share	Disposition	2017-03-02	957	$0.00	22,409	No	4	D	Direct
Common Stock, Par Value $0.01 Per Share	Disposition	2017-03-02	785	$206.80	21,624	No	4	F	Direct
Common Stock, Par Value $0.01 Per Share	Acquisiton	2017-03-02	7,380	$0.00	29,004	No	4	A	Direct
Common Stock, Par Value $0.01 Per Share	Acquisiton	2017-03-02	4,500	$37.42	33,504	No	4	M	Direct
Common Stock, Par Value $0.01 Per Share	Disposition	2017-03-02	4,500	$204.98	29,004	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	F	Direct
No	4	D	Direct
No	4	F	Direct
No	4	A	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Option to Acquire Common Stock	Acquisiton	2017-03-02	8,300	$0.00	8,300	$204.91
Common Stock	Option to Acquire Common Stock	Disposition	2017-03-02	4,500	$0.00	4,500	$37.42

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
8,300		2027-03-01	No	4	A	Direct
5,500		2019-07-15	No	4	M	Direct

Footnotes

Represents all shares of Common Stock owned, consisting of 7,052 shares of Common Stock and 16,314 shares of Common Stock subject to unvested Restricted Stock grants.
Shares forfeited from February 28, 2014 performance restricted stock grant upon measurement and certification of achievement of the performance goal by the Compensation Committee.
Represents all shares of Common Stock owned, consisting of 7,052 shares of Common Stock and 15,357 shares of Common Stock subject to unvested Restricted Stock grants.
Represents all shares of Common Stock owned, consisting of 8,430 shares of Common Stock and 13,194 shares of Common Stock subject to unvested Restricted Stock grants.
Includes a grant of 4,500 shares of restricted common stock that vest in three equal installments on March 2, 2018, March 2, 2019 and March 2, 2020, and a grant of 2,880 shares of restricted common stock that vest based upon CoStar Group, Inc.'s achievement of a three-year performance goal.
Represents all shares of Common Stock owned, consisting of 8,430 shares of Common Stock and 20,574 shares of Common Stock subject to unvested Restricted Stock grants.
Represents all shares of Common Stock owned, consisting of 12,930 shares of Common Stock and 20,574 shares of Common Stock subject to unvested Restricted Stock grants.
Average based on sales prices ranging from $204.83 to $205.04.
The option vests in three equal installments on March 2, 2018, March 2, 2019 and March 2, 2020.
The option vested in four equal installments on July 16, 2010, July 16, 2011, July 16, 2012 and July 16, 2013.