COSTAR GROUP, INC.

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COSTAR GROUP, INC.

$CSGP

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Trade Date Insider Title Buy or Sell Quantity Security Type Price Proceeds Transaction Conviction Position Quantity Position Value Positon Conviction SEC Link Nature of Ownership
2020-03-31Andrew C FlorancePresident and CEOSell3,026Common Stock, par value $0.01 per share$599.99$1,815,569.74  0.77     [ Average ]107,121$64,271,528.79  27.22    [High]Form 4-
2020-03-31Scott T WheelerChief Financial OfficerSell1,239Common Stock, par value $0.01 per share$599.99$743,387.61  0.31     [ Average ]28,964$17,378,110.36  7.36     [Average]Form 4-
2020-03-31Matthew LinningtonExecutive VP, SalesSell1,051Common Stock, par value $0.01 per share$599.99$630,589.49  0.27     [ Low ]22,185$13,310,778.15  5.64     [Average]Form 4-
2020-03-31Lisa RugglesSenior VP, Global ResearchSell275Common Stock, par value $0.01 per share$599.99$164,997.25  0.07     [ Very Low ]17,754$10,652,222.46  4.51     [Low]Form 4-
2020-05-27Lisa RugglesSenior VP, Global ResearchSell27Common Stock, par value $0.01 per share$663.99$17,927.73  -17,727$11,770,550.73  4.50     [Low]Form 4-
2020-05-04Michael R Klein-Sell1,500Common Stock, par value $0.01 per share$0.00$0.00  -246,414$0.00  62.61    [High]Form 4-
2020-05-06Michael R Klein-Sell3,639Common Stock, par value $0.01 per share$647.52$2,356,325.28  0.92     [ High ]242,775$157,201,668.00  61.68    [High]Form 4-
2020-05-07Michael R Klein-Sell11,361Common Stock, par value $0.01 per share$636.51$7,231,390.11  2.89     [ Very High ]231,414$147,297,325.14  58.79    [High]Form 4-
2020-08-04Scott T WheelerChief Financial OfficerBuy4,700Common Stock, par value $0.01 per share$204.91-$963,077.00  1.19     [ High ]33,664$6,898,090.24  8.55     [Average]Form 4-
2020-08-04Scott T WheelerChief Financial OfficerBuy3,600Common Stock, par value $0.01 per share$342.13-$1,231,668.00  0.91     [ High ]37,264$12,749,132.32  9.47     [Average]Form 4-
2020-08-04Scott T WheelerChief Financial OfficerSell12,002Common Stock, par value $0.01 per share$826.71$9,922,173.42  3.05     [ Very High ]25,262$20,884,348.02  6.42     [Average]Form 4-
2020-08-04Scott T WheelerChief Financial OfficerSell108Common Stock, par value $0.01 per share$0.00$0.00  -25,154$0.00  6.39     [Average]Form 4-
2020-08-04Scott T WheelerChief Financial OfficerBuy36Common Stock, par value $0.01 per share$0.00$0.00  -36$0.00  -Form 4By Abraham James Wheeler Trust
2020-08-04Scott T WheelerChief Financial OfficerBuy36Common Stock, par value $0.01 per share$0.00$0.00  -36$0.00  -Form 4By Jacob Paul Wheeler Trust
2020-08-04Scott T WheelerChief Financial OfficerBuy36Common Stock, par value $0.01 per share$0.00$0.00  -36$0.00  -Form 4By Anna Karin Wheeler Trust
2020-08-12Matthew LinningtonExecutive VP, SalesSell2,419Common Stock, par value $0.01 per share$826.32$1,998,868.08  0.61     [ Average ]19,766$16,333,041.12  5.02     [Average]Form 4-
2020-08-26Andrew C FlorancePresident and CEOBuy15,584Common Stock, par value $0.01 per share$193.69-$3,018,464.96  3.96     [ Very High ]122,705$23,766,731.45  31.17    [High]Form 4-
2020-08-26Andrew C FlorancePresident and CEOSell15,584Common Stock, par value $0.01 per share$848.16$13,217,725.44  3.96     [ Very High ]107,121$90,855,747.36  27.21    [High]Form 4-
2020-08-27Andrew C FlorancePresident and CEOBuy15,584Common Stock, par value $0.01 per share$193.69-$3,018,464.96  3.96     [ Very High ]122,705$23,766,731.45  31.17    [High]Form 4-
2020-08-27Andrew C FlorancePresident and CEOSell15,584Common Stock, par value $0.01 per share$851.66$13,272,269.44  3.96     [ Very High ]107,121$91,230,670.86  27.21    [High]Form 4-
2020-09-02Lisa RugglesSenior VP, Global ResearchBuy4,333Common Stock, par value $0.01 per share$342.13-$1,482,449.29  1.10     [ High ]22,060$7,547,387.80  5.60     [Average]Form 4-
2020-09-02Lisa RugglesSenior VP, Global ResearchSell7,596Common Stock, par value $0.01 per share$870.00$6,608,520.00  1.93     [ High ]14,464$12,583,680.00  3.67     [Low]Form 4-
2020-09-24Michael J Glosserman-Buy240Common Stock, par value $0.01 per share$0.00$0.00  -9,076$0.00  2.31     [Low]Form 4-
2020-09-24Christopher J Nassetta-Buy242Common Stock, par value $0.01 per share$0.00$0.00  -26,623$0.00  6.76     [Average]Form 4-
2020-09-24Michael R Klein-Buy240Common Stock, par value $0.01 per share$0.00$0.00  -231,654$0.00  58.84    [High]Form 4-
2020-09-24John W Hill-Buy251Common Stock, par value $0.01 per share$0.00$0.00  -3,657$0.00  0.93     [Very Low]Form 4-
2020-08-12John W Hill-Sell21Common Stock, par value $0.01 per share$0.00$0.00  -3,636$0.00  0.92     [Very Low]Form 4-
2020-09-24Robert W Musslewhite-Buy214Common Stock, par value $0.01 per share$0.00$0.00  -214$0.00  0.05     [Very Low]Form 4-
2020-09-24Louise S Sams-Buy232Common Stock, par value $0.01 per share$0.00$0.00  -232$0.00  0.06     [Very Low]Form 4-
2020-09-24Laura Cox Kaplan-Buy221Common Stock, par value $0.01 per share$0.00$0.00  -1,892$0.00  0.48     [Very Low]Form 4-
2020-05-07Andrew C FlorancePresident and CEOSell20,000Common Stock, par value $0.01 per share$0.00$0.00  -87,121$0.00  22.10    [High]Form 4-
2020-12-31Lisa RugglesSenior VP, Global ResearchSell250Common Stock, par value $0.01 per share$924.96$231,240.00  0.06     [ Very Low ]14,214$13,147,381.44  3.61     [Low]Form 4-
2021-01-11Scott T WheelerChief Financial OfficerBuy1Common Stock, par value $0.01 per share$0.00$0.00  -25,155$0.00  6.38     [Average]Form 4-
2021-02-15Andrew C FlorancePresident and CEOSell3,305Common Stock, par value $0.01 per share$939.76$3,105,906.80  0.84     [ High ]83,816$78,766,924.16  21.26    [High]Form 4-
2021-02-15Scott T WheelerChief Financial OfficerSell1,115Common Stock, par value $0.01 per share$939.76$1,047,832.40  0.28     [ Low ]24,040$22,591,830.40  6.10     [Average]Form 4-
2021-02-15Frederick G. SaintPresident, MarketplacesSell641Common Stock, par value $0.01 per share$939.76$602,386.16  0.16     [ Low ]21,435$20,143,755.60  5.44     [Average]Form 4-
2021-02-15Lisa RugglesSenior VP, Global ResearchSell581Common Stock, par value $0.01 per share$939.76$546,000.56  0.15     [ Low ]13,633$12,811,748.08  3.46     [Low]Form 4-
2021-02-18Andrew C FlorancePresident and CEOBuy18,160Common Stock, par value $0.01 per share$0.00$0.00  -101,976$0.00  25.87    [High]Form 4-
2021-02-18Scott T WheelerChief Financial OfficerBuy6,020Common Stock, par value $0.01 per share$0.00$0.00  -30,060$0.00  7.63     [Average]Form 4-
2021-02-18Frederick G. SaintPresident, MarketplacesBuy4,500Common Stock, par value $0.01 per share$0.00$0.00  -25,935$0.00  6.58     [Average]Form 4-
2021-02-18Lisa RugglesSenior VP, Global ResearchBuy4,060Common Stock, par value $0.01 per share$0.00$0.00  -17,693$0.00  4.49     [Low]Form 4-
2021-02-28Andrew C FlorancePresident and CEOSell799Common Stock, par value $0.01 per share$0.00$0.00  -101,177$0.00  25.67    [High]Form 4-
2021-02-28Andrew C FlorancePresident and CEOSell5,522Common Stock, par value $0.01 per share$823.76$4,548,802.72  1.40     [ High ]95,655$78,796,762.80  24.27    [High]Form 4-
2021-02-28Scott T WheelerChief Financial OfficerSell280Common Stock, par value $0.01 per share$0.00$0.00  -29,780$0.00  7.56     [Average]Form 4-
2021-02-28Scott T WheelerChief Financial OfficerSell2,372Common Stock, par value $0.01 per share$823.76$1,953,958.72  0.60     [ Average ]27,408$22,577,614.08  6.95     [Average]Form 4-
2021-02-28Frederick G. SaintPresident, MarketplacesSell200Common Stock, par value $0.01 per share$0.00$0.00  -25,735$0.00  6.53     [Average]Form 4-
2021-02-28Frederick G. SaintPresident, MarketplacesSell1,578Common Stock, par value $0.01 per share$823.76$1,299,893.28  0.40     [ Average ]24,157$19,899,570.32  6.13     [Average]Form 4-
2021-02-28Lisa RugglesSenior VP, Global ResearchSell180Common Stock, par value $0.01 per share$0.00$0.00  -17,513$0.00  4.44     [Low]Form 4-
2021-02-28Lisa RugglesSenior VP, Global ResearchSell1,388Common Stock, par value $0.01 per share$823.76$1,143,378.88  0.35     [ Average ]16,125$13,283,130.00  4.09     [Low]Form 4-
2021-03-10Andrew C FlorancePresident and CEOSell19,570Common Stock, par value $0.01 per share$818.37$16,015,500.90  4.97     [ Very High ]76,085$62,265,681.45  19.31    [High]Form 4-
2021-03-15Scott T WheelerChief Financial OfficerBuy1,598Common Stock, par value $0.01 per share$0.00$0.00  -29,006$0.00  7.36     [Average]Form 4-
2021-03-16Scott T WheelerChief Financial OfficerBuy3,600Common Stock, par value $0.01 per share$342.13-$1,231,668.00  0.91     [ High ]32,606$11,155,490.78  8.27     [Average]Form 4-
2021-03-16Scott T WheelerChief Financial OfficerBuy2,133Common Stock, par value $0.01 per share$398.15-$849,253.95  0.54     [ Average ]34,739$13,831,332.85  8.81     [Average]Form 4-
2021-03-16Scott T WheelerChief Financial OfficerSell7,326Common Stock, par value $0.01 per share$843.28$6,177,869.28  1.86     [ High ]27,413$23,116,834.64  6.96     [Average]Form 4-
2021-03-16Scott T WheelerChief Financial OfficerSell265Common Stock, par value $0.01 per share$0.00$0.00  -27,148$0.00  6.89     [Average]Form 4-
2021-03-08Scott T WheelerChief Financial OfficerSell111Common Stock, par value $0.01 per share$0.00$0.00  -27,037$0.00  6.86     [Average]Form 4-
2021-03-08Scott T WheelerChief Financial OfficerBuy37Common Stock, par value $0.01 per share$0.00$0.00  -73$0.00  0.02     [Very Low]Form 4By Abraham James Wheeler Trust
2021-03-08Scott T WheelerChief Financial OfficerBuy37Common Stock, par value $0.01 per share$0.00$0.00  -73$0.00  0.02     [Very Low]Form 4By Anna Karin Wheeler Trust
2021-03-08Scott T WheelerChief Financial OfficerBuy37Common Stock, par value $0.01 per share$0.00$0.00  -73$0.00  0.02     [Very Low]Form 4By Jacob Paul Wheeler Trust
2021-03-15Lisa RugglesSenior VP, Global ResearchBuy446Common Stock, par value $0.01 per share$0.00$0.00  -16,571$0.00  4.20     [Low]Form 4-
2021-03-23Frederick G. SaintPresident, MarketplacesBuy2,767Common Stock, par value $0.01 per share$204.91-$566,985.97  0.70     [ Average ]26,924$5,516,996.84  6.83     [Average]Form 4-
2021-03-23Frederick G. SaintPresident, MarketplacesBuy5,067Common Stock, par value $0.01 per share$342.13-$1,733,572.71  1.29     [ High ]31,991$10,945,080.83  8.12     [Average]Form 4-
2021-03-23Frederick G. SaintPresident, MarketplacesSell7,834Common Stock, par value $0.01 per share$831.70$6,515,537.80  1.99     [ High ]24,157$20,091,376.90  6.13     [Average]Form 4-
2021-03-31Lisa RugglesSenior VP, Global ResearchSell275Common Stock, par value $0.01 per share$799.55$219,876.25  0.07     [ Very Low ]16,296$13,029,466.80  4.13     [Low]Form 4-
2021-04-30Laura Cox Kaplan-Sell1,062Common Stock, par value $0.01 per share$869.03$922,909.86  0.27     [ Low ]830$721,294.90  0.21     [Very Low]Form 4-