Last 12 months
Inside the activity.
7 purchase rows · 4 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 2 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 1 | 0 |
| Mar 2026 | 3 | 0 |
| Apr 2026 | 0 | 0 |
| May 2026 | 2 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 1 | 2 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 02, 2017 Filed Mar 2, 2017 23:16 UTC |
Wheeler Scott TChief Financial Officer
|
GrantCommon Stock, par value $0.01 per share | 12,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-17-000016 · wf-form4_148849656042174.xml · nonDerivative · entry 1 Wheeler Scott T · CIK 0001661073 · Chief Financial Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 24,085 F1 · shares: Includes a grant of 7,700 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 4,800 shares of restricted common stock that vest based upon CoStar Group, Inc.'s achievement of a three-year performance goal. F2 · balance_after: Represents all shares of Common Stock owned, consisting of 2,007 shares of Common Stock and 22,078 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
Exercise / conversionOption to Acquire Common Stock · Derivative | 4,500 | $0.00 Strike: $37.42 | $0.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · derivative · entry 8 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,500 Underlying: Common Stock · 4,500 shares Expires 2019-07-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F10 · derivative.exercise_date: The option vested in four equal installments on July 16, 2010, July 16, 2011, July 16, 2012 and July 16, 2013. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
GrantOption to Acquire Common Stock · Derivative | 8,300 | $0.00 Strike: $204.91 | $0.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · derivative · entry 7 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,300 Underlying: Common Stock · 8,300 shares Expires 2027-03-01 F9 · derivative.exercise_date: The option vests in three equal installments on March 2, 2018, March 2, 2019 and March 2, 2020. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
SaleCommon Stock, par value $0.01 per share | 4,500 | $204.98 | $922,410.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · nonDerivative · entry 6 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,004 F8 · price: Average based on sales prices ranging from $204.83 to $205.04. F6 · balance_after: 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. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
Exercise / conversionCommon Stock, par value $0.01 per share | 4,500 | $37.42 | $168,390.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · nonDerivative · entry 5 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 33,504 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F7 · balance_after: 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. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
GrantCommon Stock, par value $0.01 per share | 7,380 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · nonDerivative · entry 4 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,004 F5 · shares: 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. F6 · balance_after: 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. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
Tax withholdingCommon Stock, par value $0.01 per share | 785 | $206.80 | $162,338.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · nonDerivative · entry 3 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,624 F4 · balance_after: 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. Read SEC document |
| March 02, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
Disposition to issuerCommon Stock, par value $0.01 per share | 957 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · nonDerivative · entry 2 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,409 F2 · shares: Shares forfeited from February 28, 2014 performance restricted stock grant upon measurement and certification of achievement of the performance goal by the Compensation Committee. F3 · balance_after: 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. Read SEC document |
| February 28, 2017 Filed Mar 2, 2017 23:14 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Tax withholdingCommon Stock, par value $0.01 per share | 1,899 | $203.99 | $387,377.01 |
DisclosureSEC source: 0001057352-17-000014 · wf-form4_148849646393118.xml · nonDerivative · entry 1 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 157,523 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 94,903 shares of Common Stock and 62,620 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| February 28, 2017 Filed Mar 2, 2017 23:15 UTC |
CARCHEDI FRANCISExecutive VP, Corp. Dev.
|
Tax withholdingCommon Stock, par value $0.01 per share | 630 | $203.99 | $128,513.70 |
DisclosureSEC source: 0001057352-17-000015 · wf-form4_148849649498957.xml · nonDerivative · entry 1 CARCHEDI FRANCIS · CIK 0001218615 · Executive VP, Corp. Dev. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 23,366 F1 · balance_after: 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. Read SEC document |
| January 11, 2017 Filed Jan 11, 2017 23:01 UTC |
Wheeler Scott TChief Financial Officer
|
Tax withholdingCommon Stock, par value $0.01 per share | 1,185 | $194.20 | $230,127.00 |
DisclosureSEC source: 0001057352-17-000002 · wf-form4_148417569382663.xml · nonDerivative · entry 1 Wheeler Scott T · CIK 0001661073 · Chief Financial Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,585 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 2,007 shares of Common Stock and 9,578 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| December 29, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Exercise / conversionOption to Acquire Common Stock · Derivative | 978 | $0.00 Strike: $102.16 | $0.00 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · derivative · entry 7 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 55,322 Underlying: Common Stock · 978 shares Expires 2023-03-10 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F7 · derivative.exercise_date: The option vested in three equal installments on March 11, 2014, March 11, 2015, and March 11, 2016. Read SEC document |
| December 29, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Exercise / conversionOption to Acquire Common Stock · Derivative | 1,696 | $0.00 Strike: $58.95 | $0.00 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · derivative · entry 6 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 40,004 Underlying: Common Stock · 1,696 shares Expires 2022-02-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F6 · derivative.exercise_date: The option vested in three equal installments on February 21, 2013, February 21, 2014 and February 21, 2015. Read SEC document |
| December 29, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Exercise / conversionOption to Acquire Common Stock · Derivative | 499 | $0.00 Strike: $57.16 | $0.00 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · derivative · entry 5 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 40,051 Underlying: Common Stock · 499 shares Expires 2021-03-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: The option vested in three equal installments on March 4, 2012, March 4, 2013 and March 4, 2014. Read SEC document |
| December 29, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Exercise / conversionCommon Stock, par value $0.01 per share | 978 | $102.16 | $99,912.48 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · nonDerivative · entry 4 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 159,422 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · balance_after: Represents all shares of Common Stock owned, consisting of 91,668 shares of Common Stock and 67,754 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| December 29, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Exercise / conversionCommon Stock, par value $0.01 per share | 1,696 | $58.95 | $99,979.20 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · nonDerivative · entry 3 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 158,444 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · balance_after: Represents all shares of Common Stock owned, consisting of 90,690 shares of Common Stock and 67,754 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| December 29, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
Exercise / conversionCommon Stock, par value $0.01 per share | 499 | $57.16 | $28,522.84 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · nonDerivative · entry 2 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 156,748 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · balance_after: Represents all shares of Common Stock owned, consisting of 88,994 shares of Common Stock and 67,754 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| November 01, 2016 Filed Nov 1, 2016 17:38 UTC |
NASSETTA CHRISTOPHER JDirector
|
SaleCommon Stock, par value $0.01 per share | 75 | $187.30 | $14,047.50 |
DisclosureSEC source: 0001057352-16-000169 · wf-form4_147803629810379.xml · nonDerivative · entry 2 NASSETTA CHRISTOPHER J · CIK 0001078095 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,835 F3 · balance_after: Represents all shares of Common Stock owned, consisting of 23,140 shares of Common Stock and 2,695 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| October 31, 2016 Filed Nov 1, 2016 17:38 UTC |
NASSETTA CHRISTOPHER JDirector
|
SaleCommon Stock, par value $0.01 per share | 500 | $187.73 | $93,865.00 |
DisclosureSEC source: 0001057352-16-000169 · wf-form4_147803629810379.xml · nonDerivative · entry 1 NASSETTA CHRISTOPHER J · CIK 0001078095 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,910 F1 · price: Average based on sales prices ranging from $186.14 to $188.72. F2 · balance_after: Represents all shares of Common Stock owned, consisting of 23,215 shares of Common Stock and 2,695 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| October 31, 2016 Filed Nov 1, 2016 21:36 UTC |
Linnington MatthewExecutive VP, Sales
|
SaleCommon Stock, par value $0.01 per share | 1,060 | $188.31 | $199,608.60 |
DisclosureSEC source: 0001057352-16-000167 · wf-form4_147803619702091.xml · nonDerivative · entry 1 Linnington Matthew · CIK 0001609822 · Executive VP, Sales 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,438 F1 · price: Average based on sales prices ranging from $188.26 to $188.51. F2 · balance_after: Represents all shares of Common Stock owned, consisting of 2,802 shares of Common Stock and 17,636 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 18:45 UTC |
HABER WARREN HDirector
|
GrantCommon Stock, par value $0.01 per share | 897 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000161 · wf-form4_147397952854479.xml · nonDerivative · entry 1 HABER WARREN H · CIK 0000925767 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 119,905 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 116,729 shares of Common Stock and 3,176 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 18:43 UTC |
NASSETTA CHRISTOPHER JDirector
|
GrantCommon Stock, par value $0.01 per share | 935 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000155 · wf-form4_147397942698927.xml · nonDerivative · entry 1 NASSETTA CHRISTOPHER J · CIK 0001078095 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,410 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 23,157 shares of Common Stock and 3,253 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 18:44 UTC |
KLEIN MICHAEL RDirector
|
GrantCommon Stock, par value $0.01 per share | 926 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000157 · wf-form4_147397946070927.xml · nonDerivative · entry 1 KLEIN MICHAEL R · CIK 0001066062 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 330,469 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 327,247 shares of Common Stock and 3,222 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 22:45 UTC |
Steinberg David JayDirector
|
GrantCommon Stock, par value $0.01 per share | 897 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000160 · wf-form4_147397951239124.xml · nonDerivative · entry 1 Steinberg David Jay · CIK 0001522418 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,844 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 2,713 shares of Common Stock and 3,131 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 22:45 UTC |
Glosserman Michael JDirector
|
GrantCommon Stock, par value $0.01 per share | 926 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000159 · wf-form4_147397949441070.xml · nonDerivative · entry 1 Glosserman Michael J · CIK 0001436265 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,158 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 4,936 shares of Common Stock and 3,222 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 22:44 UTC |
Kaplan Laura CoxDirector
|
GrantCommon Stock, par value $0.01 per share | 855 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000158 · wf-form4_147397947746039.xml · nonDerivative · entry 1 Kaplan Laura Cox · CIK 0001672800 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 855 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 0 shares of Common Stock and 855 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 15, 2016 Filed Sep 15, 2016 22:44 UTC |
Hill John WDirector
|
GrantCommon Stock, par value $0.01 per share | 968 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000156 · wf-form4_147397944388619.xml · nonDerivative · entry 1 Hill John W · CIK 0001351689 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,393 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 2,035 shares of Common Stock and 3,358 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| September 11, 2016 Filed Sep 13, 2016 23:58 UTC |
Linnington MatthewExecutive VP, Sales
|
Tax withholdingCommon Stock, par value $0.01 per share | 883 | $205.69 | $181,624.27 |
DisclosureSEC source: 0001057352-16-000147 · wf-form4_147381109067546.xml · nonDerivative · entry 1 Linnington Matthew · CIK 0001609822 · Executive VP, Sales 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,498 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 3,862 shares of Common Stock and 17,636 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
| June 03, 2016 Filed Dec 29, 2016 21:53 UTC |
FLORANCE ANDREW CDirector · President and CEO
|
GiftCommon Stock, par value $0.01 per share | 8,400 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-16-000171 · wf-form4_148304837284933.xml · nonDerivative · entry 1 FLORANCE ANDREW C · CIK 0001066061 · Director · President and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 156,249 F1 · balance_after: Represents all shares of Common Stock owned, consisting of 88,495 shares of Common Stock and 67,754 shares of Common Stock subject to unvested Restricted Stock grants. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.