NASDAQ:CSGP | Insider Transactions | COSTAR GROUP, INC.

CSGP Insider Transactions

212 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.

CSGP insiders transaction timeline

PurchaseSale
2006-03-13: 1 sale — KLEIN MICHAEL R2006-03-14: 1 sale — KLEIN MICHAEL R2006-03-15: 1 sale — KLEIN MICHAEL R2006-03-16: 3 sales — KLEIN MICHAEL R, FARRINGTON CRAIG2006-03-28: 1 sale — KLEIN MICHAEL R2006-03-29: 1 sale — KLEIN MICHAEL R2006-05-02: 2 sales — CARCHEDI FRANCIS, FLORANCE ANDREW C2006-11-16: 1 sale — CARCHEDI FRANCIS2006-11-17: 1 sale — CARCHEDI FRANCIS2006-12-04: 1 sale — FARRINGTON CRAIG2007-02-28: 1 sale — FLORANCE ANDREW C2007-07-30: 1 sale — CARCHEDI FRANCIS2007-08-09: 1 sale — CARCHEDI FRANCIS2007-10-29: 1 sale — FLORANCE ANDREW C2007-10-30: 1 sale — FLORANCE ANDREW C2008-05-06: 1 sale — Marples Paul2008-05-07: 1 sale — FLORANCE ANDREW C2009-09-16: 1 sale — Marples Paul2009-10-27: 2 sales — FLORANCE ANDREW C2009-10-28: 1 sale — FLORANCE ANDREW C2009-10-29: 1 sale — FLORANCE ANDREW C2010-04-27: 1 sale — Marples Paul2010-04-29: 1 sale — Marples Paul2010-08-04: 1 sale — FLORANCE ANDREW C2010-08-05: 1 sale — FLORANCE ANDREW C2010-08-09: 1 sale — FLORANCE ANDREW C2010-09-14: 1 sale — Kitchen Jennifer2010-10-25: 1 sale — Stanfill John L2010-10-26: 1 sale — Marples Paul2010-11-11: 1 sale — KLEIN MICHAEL R2011-03-04: 1 sale — Marples Paul2011-05-02: 4 sales — Kitchen Jennifer, Stanfill John L2011-05-03: 1 sale — Marples Paul2011-11-01: 1 sale — FLORANCE ANDREW C2011-11-04: 1 sale — FLORANCE ANDREW C2012-03-09: 1 sale — Marples Paul2012-05-04: 3 sales — Stanfill John L, Kitchen Jennifer, Radecki Brian J2012-05-07: 2 sales — Stanfill John L, Radecki Brian J2012-05-11: 2 sales — Marples Paul, Radecki Brian J2012-05-17: 1 sale — FLORANCE ANDREW C2012-05-22: 2 sales — Radecki Brian J2012-05-23: 1 sale — Radecki Brian J2012-06-11: 1 sale — NASSETTA CHRISTOPHER J2012-07-30: 1 sale — Marples Paul2012-08-01: 1 sale — FLORANCE ANDREW C2012-09-06: 1 sale — Stanfill John L2012-09-13: 1 sale — Kitchen Jennifer2012-09-18: 1 sale — KLEIN MICHAEL R2012-09-19: 1 sale — KLEIN MICHAEL R2012-09-20: 1 sale — KLEIN MICHAEL R2012-12-31: 1 sale — Radecki Brian J2013-03-04: 1 sale — FLORANCE ANDREW C2013-03-05: 3 sales — CARCHEDI FRANCIS, Radecki Brian J2013-03-12: 1 sale — Stanfill John L2013-03-13: 1 sale — Kitchen Jennifer2013-03-14: 1 sale — FLORANCE ANDREW C2013-03-15: 1 sale — FLORANCE ANDREW C2013-07-29: 2 sales — FLORANCE ANDREW C2013-07-30: 3 sales — Radecki Brian J, CARCHEDI FRANCIS, FLORANCE ANDREW C2013-08-02: 1 sale — NASSETTA CHRISTOPHER J2013-08-20: 1 sale — HABER WARREN H2013-08-27: 1 sale — NASSETTA CHRISTOPHER J2013-09-09: 1 sale — Kitchen Jennifer2013-10-28: 1 sale — FLORANCE ANDREW C2013-11-12: 1 sale — Stanfill John L2013-11-20: 2 sales — Radecki Brian J, CARCHEDI FRANCIS2013-11-21: 2 sales — Radecki Brian J, CARCHEDI FRANCIS2013-11-22: 2 sales — Radecki Brian J, CARCHEDI FRANCIS2014-03-06: 1 sale — FLORANCE ANDREW C2014-03-07: 2 sales — Radecki Brian J2014-03-10: 1 sale — Stanfill John L2014-03-11: 1 sale — Stanfill John L2014-03-14: 1 sale — CARCHEDI FRANCIS2014-08-19: 1 sale — HABER WARREN H2014-08-26: 1 sale — NASSETTA CHRISTOPHER J2015-03-02: 2 sales — Radecki Brian J, FLORANCE ANDREW C2015-03-09: 1 sale — CARCHEDI FRANCIS2015-03-13: 1 sale — Radecki Brian J2015-06-15: 1 sale — Steinberg David Jay2015-11-11: 1 sale — FLORANCE ANDREW C2015-11-13: 1 sale — CARCHEDI FRANCIS2016-08-01: 1 sale — Glosserman Michael J2016-10-31: 2 sales — NASSETTA CHRISTOPHER J, Linnington Matthew2016-11-01: 1 sale — NASSETTA CHRISTOPHER J2017-03-02: 2 sales — CARCHEDI FRANCIS, FLORANCE ANDREW C2017-03-06: 1 sale — CARCHEDI FRANCIS2017-05-01: 2 sales — Wheeler Scott T, Linnington Matthew2017-05-02: 3 sales — Hill John W, CARCHEDI FRANCIS, FLORANCE ANDREW C2017-05-03: 1 sale — FLORANCE ANDREW C2017-06-26: 1 sale — KLEIN MICHAEL R2017-07-31: 1 sale — Linnington Matthew2018-02-27: 1 sale — FLORANCE ANDREW C2018-03-02: 2 sales — Linnington Matthew2018-03-05: 1 sale — Wheeler Scott T2018-03-07: 1 sale — CARCHEDI FRANCIS2018-03-22: 1 sale — KLEIN MICHAEL R2018-03-29: 1 sale — Hill John W2018-04-26: 1 sale — FLORANCE ANDREW C2018-04-27: 1 sale — FLORANCE ANDREW C2018-04-30: 1 sale — FLORANCE ANDREW C2018-07-27: 2 sales — Wheeler Scott T, CARCHEDI FRANCIS2018-07-30: 1 sale — Linnington Matthew2018-08-06: 1 sale — KLEIN MICHAEL R2018-10-29: 1 sale — NASSETTA CHRISTOPHER J2018-12-26: 1 sale — Hill John W2019-03-01: 3 sales — Ruggles Lisa, Linnington Matthew, Wheeler Scott T2019-03-04: 1 sale — FLORANCE ANDREW C2019-06-24: 1 sale — Hill John W2019-07-26: 2 sales — Wheeler Scott T, FLORANCE ANDREW C2019-07-31: 1 sale — Linnington Matthew2019-10-25: 1 sale — NASSETTA CHRISTOPHER J2019-11-19: 1 sale — Kaplan Laura Cox2019-12-31: 1 sale — Hill John W2020-03-02: 1 sale — FLORANCE ANDREW C2020-03-03: 1 sale — Wheeler Scott T2020-03-04: 1 sale — Steinberg David Jay2020-05-06: 1 sale — KLEIN MICHAEL R2020-05-07: 1 sale — KLEIN MICHAEL R2020-08-04: 1 sale — Wheeler Scott T2020-08-12: 1 sale — Linnington Matthew2020-08-26: 1 sale — FLORANCE ANDREW C2020-08-27: 1 sale — FLORANCE ANDREW C2020-09-02: 1 sale — Ruggles Lisa2021-03-10: 1 sale — FLORANCE ANDREW C2021-03-16: 1 sale — Wheeler Scott T2021-03-23: 1 sale — SAINT FREDERICK G.2021-04-30: 1 sale — Kaplan Laura Cox2021-08-09: 1 sale — Hill John W2021-10-29: 1 sale — Hill John W2021-11-05: 1 sale — Kaplan Laura Cox2021-11-10: 1 sale — NASSETTA CHRISTOPHER J2021-11-11: 1 sale — Wheeler Scott T2022-03-02: 1 sale — Ruggles Lisa2022-05-02: 1 sale — DESMARAIS MICHAEL J2022-05-24: 1 sale — Hill John W2022-08-03: 1 sale — DESMARAIS MICHAEL J2022-08-05: 1 sale — KLEIN MICHAEL R2022-08-10: 1 sale — Hill John W2022-10-28: 1 sale — DESMARAIS MICHAEL J2022-11-03: 1 sale — Hill John W2023-03-01: 1 sale — SIMURO FRANK2023-03-08: 1 sale — DESMARAIS MICHAEL J2023-03-31: 1 sale — Hill John W2023-04-28: 1 sale — FLORANCE ANDREW C2023-06-07: 1 sale — SAINT FREDERICK G.2023-06-12: 1 sale — Wheeler Scott T2023-06-26: 1 sale — Hill John W2023-06-27: 1 sale — SIMURO FRANK2023-06-28: 1 sale — Wheeler Scott T2023-06-30: 1 sale — Ruggles Lisa2023-11-08: 1 sale — NASSETTA CHRISTOPHER J2023-11-28: 1 sale — Hill John W2024-04-26: 2 sales — DESMARAIS MICHAEL J, Wheeler Scott T2024-05-09: 1 sale — Ruggles Lisa2024-05-16: 1 sale — SAINT FREDERICK G.2024-07-30: 1 sale — Hill John W2024-07-31: 1 sale — Cann Cynthia Cammett2024-10-25: 1 purchase — FLORANCE ANDREW C2024-10-25: 1 sale — KLEIN MICHAEL R2024-11-11: 1 sale — Cann Cynthia Cammett2024-11-26: 1 sale — DESMARAIS MICHAEL J2024-11-27: 1 sale — NASSETTA CHRISTOPHER J2024-12-10: 1 sale — Hill John W2025-03-10: 1 sale — Cann Cynthia Cammett2025-06-11: 1 sale — SAINT FREDERICK G.2025-07-28: 2 sales — SAINT FREDERICK G., Cann Cynthia Cammett2025-08-28: 1 sale — SAINT FREDERICK G.2025-11-13: 2 sales — Hill John W, Cann Cynthia Cammett2026-02-27: 1 purchase — FLORANCE ANDREW C2026-03-02: 2 purchases — SAINT FREDERICK G., Glaser Rachel C2026-03-06: 1 purchase — Sams Louise S2026-05-01: 2 purchases — FLORANCE ANDREW C2026-08-04: 1 purchase — FLORANCE ANDREW C2026-08-05: 1 sale — Hill John W2026-08-07: 1 sale — Cann Cynthia Cammett2006-03-132026-08-07
Insider profileRoleDateTransactionSharesPrice
Cann Cynthia CammettChief Accounting Officer2026-08-07Sale4,788$30.78
Hill John WDirector2026-08-05Sale3,500$30.21
FLORANCE ANDREW CFounder and CEO2026-08-04Purchase83,300$29.89
FLORANCE ANDREW CPresident and CEO2026-05-01Purchase3,100.0$35.82
FLORANCE ANDREW CPresident and CEO2026-05-01Purchase68,330.0$35.17
Sams Louise SDirector2026-03-06Purchase1,000.0$48.36
SAINT FREDERICK G.President, Marketplaces2026-03-02Purchase20,000.0$45.33
Glaser Rachel CDirector2026-03-02Purchase1,000.0$44.94
FLORANCE ANDREW CPresident and CEO2026-02-27Purchase55,720.0$44.52
Hill John WDirector2025-11-13Sale2,250.0$68.68
Cann Cynthia CammettChief Accounting Officer2025-11-13Sale1,841.0$68.79
SAINT FREDERICK G.President, Marketplaces2025-08-28Sale25,000.0$90.33
SAINT FREDERICK G.President, Marketplaces2025-07-28Sale25,000.0$93.23
Cann Cynthia CammettChief Accounting Officer2025-07-28Sale2,033.0$92.85
SAINT FREDERICK G.President, Marketplaces2025-06-11Sale25,000.0$81.1
Cann Cynthia CammettChief Accounting Officer2025-03-10Sale1,749.0$79.9
Hill John WDirector2024-12-10Sale2,735.0$76.76
NASSETTA CHRISTOPHER JDirector2024-11-27Sale1,681.0$80.39
DESMARAIS MICHAEL JChief Human Resources Officer2024-11-26Sale5,500.0$79.88
Cann Cynthia CammettChief Accounting Officer2024-11-11Sale1,310.0$76.85
KLEIN MICHAEL RDirector2024-10-25Sale71,633.0$74.69
FLORANCE ANDREW CPresident and CEO2024-10-25Purchase14,731.03$74.67
Cann Cynthia CammettChief Accounting Officer2024-07-31Sale1,200.0$78.2
Hill John WDirector2024-07-30Sale1,325.0$78.16
SAINT FREDERICK G.President, Marketplaces2024-05-16Sale2,500.0$88.43
Ruggles LisaSenior VP, Global Operations2024-05-09Sale20,000.0$91.15
DESMARAIS MICHAEL JChief Human Resources Officer2024-04-26Sale3,800.0$92.67
Wheeler Scott TChief Financial Officer2024-04-26Sale122,736.0$92.61
Hill John WDirector2023-11-28Sale3,020.0$84.07
NASSETTA CHRISTOPHER JDirector2023-11-08Sale1,500.0$77.86
Ruggles LisaSenior VP, Global Research2023-06-30Sale30,474.0$91.42
Wheeler Scott TChief Financial Officer2023-06-28Sale21,530.0$89.3
SIMURO FRANKChief Technology Officer2023-06-27Sale92,300.0$89.65
Hill John WDirector2023-06-26Sale1,500.0$86.57
Wheeler Scott TChief Financial Officer2023-06-12Sale24,670.0$80.68
SAINT FREDERICK G.President, Marketplaces2023-06-07Sale30,000.0$80.24
FLORANCE ANDREW CPresident and CEO2023-04-28Sale360,530.0$76.77
Hill John WDirector2023-03-31Sale2,300.0$68.5
DESMARAIS MICHAEL JChief Human Resources Officer2023-03-08Sale5,600.0$70.36
SIMURO FRANKChief Technology Officer2023-03-01Sale35,220.0$70.09
Hill John WDirector2022-11-03Sale3,650.0$78.92
DESMARAIS MICHAEL JChief Human Resources Officer2022-10-28Sale1,296.0$82.81
Hill John WDirector2022-08-10Sale1,400.0$74.49
KLEIN MICHAEL RDirector2022-08-05Sale150,000.0$72.42
DESMARAIS MICHAEL JChief Human Resources Officer2022-08-03Sale2,000.0$72.51
Hill John WDirector2022-05-24Sale1,750.0$57.07
DESMARAIS MICHAEL JChief Human Resources Officer2022-05-02Sale1,000.0$63.14
Ruggles LisaSenior VP, Global Research2022-03-02Sale21,640.0$59.88
Wheeler Scott TChief Financial Officer2021-11-11Sale85.0$81.72
NASSETTA CHRISTOPHER JDirector2021-11-10Sale2,120.0$83.21
Kaplan Laura CoxDirector2021-11-05Sale4,040.0$83.29
Hill John WDirector2021-10-29Sale9,235.0$86.97
Hill John WDirector2021-08-09Sale6,160.0$85.77
Kaplan Laura CoxDirector2021-04-30Sale1,062.0$869.03
SAINT FREDERICK G.President, Marketplaces2021-03-23Sale7,834.0$831.7
Wheeler Scott TChief Financial Officer2021-03-16Sale7,326.0$843.28
FLORANCE ANDREW CPresident and CEO2021-03-10Sale19,570.0$818.37
Ruggles LisaSenior VP, Global Research2020-09-02Sale7,596.0$870.0
FLORANCE ANDREW CPresident and CEO2020-08-27Sale15,584.0$851.66
FLORANCE ANDREW CPresident and CEO2020-08-26Sale15,584.0$848.16
Linnington MatthewExecutive VP, Sales2020-08-12Sale2,419.0$826.32
Wheeler Scott TChief Financial Officer2020-08-04Sale12,002.0$826.71
KLEIN MICHAEL RDirector2020-05-07Sale11,361.0$636.51
KLEIN MICHAEL RDirector2020-05-06Sale3,639.0$647.52
Steinberg David JayDirector2020-03-04Sale850.0$714.0
Wheeler Scott TChief Financial Officer2020-03-03Sale6,005.0$703.26
FLORANCE ANDREW CPresident and CEO2020-03-02Sale33,600.0$663.9
Hill John WDirector2019-12-31Sale500.0$591.9
Kaplan Laura CoxDirector2019-11-19Sale576.0$591.6
NASSETTA CHRISTOPHER JDirector2019-10-25Sale406.0$570.99
Linnington MatthewExecutive VP, Sales2019-07-31Sale14,651.0$617.39
Wheeler Scott TChief Financial Officer2019-07-26Sale6,933.0$629.5
FLORANCE ANDREW CPresident and CEO2019-07-26Sale24,210.0$628.64
Hill John WDirector2019-06-24Sale315.0$553.23
FLORANCE ANDREW CPresident and CEO2019-03-04Sale55,322.0$473.38
Ruggles LisaSenior VP, Global Research2019-03-01Sale1,538.0$466.62
Linnington MatthewExecutive VP, Sales2019-03-01Sale4,701.0$477.31
Wheeler Scott TChief Financial Officer2019-03-01Sale5,396.0$476.11
Hill John WDirector2018-12-26Sale1,042.0$330.88
NASSETTA CHRISTOPHER JDirector2018-10-29Sale571.0$349.67
KLEIN MICHAEL RDirector2018-08-06Sale15,000.0$420.69
Linnington MatthewExecutive VP, Sales2018-07-30Sale4,384.0$411.93
Wheeler Scott TChief Financial Officer2018-07-27Sale4,700.0$426.02
CARCHEDI FRANCISExecutive VP, Corp. Dev.2018-07-27Sale32,671.0$421.87
FLORANCE ANDREW CPresident and CEO2018-04-30Sale5,839.0$369.05
FLORANCE ANDREW CPresident and CEO2018-04-27Sale11,200.0$371.15
FLORANCE ANDREW CPresident and CEO2018-04-26Sale7,782.0$372.34
Hill John WDirector2018-03-29Sale1,150.0$361.28
KLEIN MICHAEL RDirector2018-03-22Sale3,000.0$361.61
CARCHEDI FRANCISExecutive VP, Corp. Dev.2018-03-07Sale12,100.0$356.09
Wheeler Scott TChief Financial Officer2018-03-05Sale1,250.0$353.69
Linnington MatthewExecutive VP, Sales2018-03-02Sale1,153.0$348.45
Linnington MatthewExecutive VP, Sales2018-03-02Sale6,768.0$348.19
FLORANCE ANDREW CPresident and CEO2018-02-27Sale80,055.0$347.1
Linnington MatthewExecutive VP, Sales2017-07-31Sale1,767.0$273.15
KLEIN MICHAEL RDirector2017-06-26Sale20,000.0$265.01
FLORANCE ANDREW CPresident and CEO2017-05-03Sale21,768.0$244.19
Hill John WDirector2017-05-02Sale440.0$244.52
CARCHEDI FRANCISExecutive VP, Corp. Dev.2017-05-02Sale5,500.0$245.04
FLORANCE ANDREW CPresident and CEO2017-05-02Sale21,768.0$244.73