| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 11, 2015 | Option Exercise | $191.03 | 1,374 | 262,475 | 41,473 | Mar 13, 2015, 05:07 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 13, 2015 | Option Exercise | $102.16 | 4,500 | 459,720 | 45,973 | Mar 13, 2015, 05:07 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 13, 2015 | Sale | $192.53 | 4,500 | 866,385 | 41,473 | Mar 13, 2015, 05:07 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Feb 28, 2015 | Option Exercise | $199.16 | 617 | 122,882 | 35,757 | Mar 03, 2015, 04:56 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 02, 2015 | Option Exercise | $80.24 | 9,134 | 732,894 | 44,891 | Mar 03, 2015, 04:56 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 02, 2015 | Sale | $197.14 | 14,634 | 2,884,947 | 30,257 | Mar 03, 2015, 04:56 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Feb 21, 2015 | Option Exercise | $191.24 | 1,211 | 231,592 | 36,374 | Feb 24, 2015, 06:11 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 07, 2014 | Option Exercise | $58.05 | 9,300 | 539,881 | 60,225 | Mar 11, 2014, 08:55 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 07, 2014 | Sale | $208.83 | 21,266 | 4,440,915 | 50,925 | Mar 11, 2014, 08:55 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 11, 2014 | Option Exercise | $207.81 | 1,374 | 285,531 | 37,585 | Mar 11, 2014, 08:55 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 04, 2014 | Option Exercise | $214.00 | 1,001 | 214,214 | 50,925 | Mar 06, 2014, 06:10 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Feb 28, 2014 | Option Exercise | $201.04 | 17,105 | 3,438,789 | 43,706 | Mar 04, 2014, 05:29 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Feb 21, 2014 | Option Exercise | $197.97 | 1,210 | 239,544 | 60,811 | Feb 25, 2014, 06:00 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Nov 22, 2013 | Sale | $181.02 | 4,000 | 724,080 | 62,171 | Nov 22, 2013, 05:56 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Nov 20, 2013 | Sale | $177.23 | 2,000 | 354,460 | 68,671 | Nov 22, 2013, 05:56 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Nov 21, 2013 | Sale | $180.91 | 2,500 | 452,275 | 66,171 | Nov 22, 2013, 05:56 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Jul 30, 2013 | Option Exercise | $49.81 | 10,267 | 511,377 | 80,938 | Aug 01, 2013, 06:43 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Jul 30, 2013 | Sale | $157.00 | 10,267 | 1,611,919 | 70,671 | Aug 01, 2013, 06:43 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 12, 2013 | Option Exercise | $101.06 | 1,265 | 127,841 | 70,671 | Mar 13, 2013, 07:43 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 05, 2013 | Sale | $103.45 | 20,599 | 2,131,030 | 63,836 | Mar 06, 2013, 06:48 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 04, 2013 | Option Exercise | $103.17 | 695 | 71,703 | 63,836 | Mar 06, 2013, 06:48 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 05, 2013 | Option Exercise | $49.03 | 20,599 | 1,009,913 | 75,102 | Mar 06, 2013, 06:48 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Feb 21, 2013 | Option Exercise | $95.90 | 1,186 | 113,737 | 64,531 | Feb 25, 2013, 05:02 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Dec 31, 2012 | Option Exercise | $46.70 | 17,500 | 817,255 | 83,217 | Jan 03, 2013, 09:57 AM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Dec 31, 2012 | Sale | $89.00 | 17,500 | 1,557,500 | 65,717 | Jan 03, 2013, 09:57 AM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 23, 2012 | Sale | $71.75 | 4,509 | 323,521 | 65,699 | May 24, 2012, 06:08 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 22, 2012 | Option Exercise | $25.00 | 19,500 | 487,500 | 90,961 | May 24, 2012, 06:08 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 22, 2012 | Sale | $71.03 | 20,753 | 1,474,090 | 71,461 | May 24, 2012, 06:08 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 11, 2012 | Option Exercise | $39.81 | 60 | 2,389 | 71,521 | May 15, 2012, 04:48 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 11, 2012 | Sale | $70.50 | 60 | 4,230 | 71,461 | May 15, 2012, 04:48 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 04, 2012 | Sale | $70.78 | 2,711 | 191,885 | 71,461 | May 08, 2012, 04:31 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 07, 2012 | Option Exercise | $34.64 | 7,815 | 270,746 | 79,276 | May 08, 2012, 04:31 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 07, 2012 | Sale | $70.50 | 7,815 | 550,958 | 71,461 | May 08, 2012, 04:31 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 12, 2012 | Option Exercise | $63.12 | 866 | 54,662 | 74,172 | Mar 13, 2012, 04:15 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 02, 2012 | Option Exercise | $58.92 | 820 | 48,314 | 75,710 | Mar 06, 2012, 05:07 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 04, 2012 | Option Exercise | $58.92 | 672 | 39,594 | 75,038 | Mar 06, 2012, 05:07 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Jun 05, 2011 | Option Exercise | $58.66 | 2,618 | 153,572 | 32,530 | Jun 07, 2011, 05:30 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | May 28, 2011 | Option Exercise | $63.16 | 66 | 4,169 | 35,148 | Jun 01, 2011, 04:27 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 12, 2011 | Option Exercise | $56.21 | 847 | 47,610 | 35,214 | Mar 14, 2011, 06:13 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Mar 02, 2011 | Option Exercise | $56.31 | 802 | 45,161 | 30,161 | Mar 04, 2011, 04:40 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Feb 27, 2011 | Option Exercise | $57.23 | 468 | 26,784 | 30,963 | Mar 01, 2011, 05:24 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Jan 29, 2011 | Option Exercise | $56.28 | 932 | 52,453 | 31,431 | Feb 01, 2011, 05:12 PM | |
| CSGP | COSTAR GROUP INC | Radecki Brian J | Chief Financial Officer | Sep 07, 2010 | Option Exercise | $42.78 | 104 | 4,449 | 32,363 | Sep 08, 2010, 06:02 PM |
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