Why insider trading matters?

Numerous studies have examined whether there is evidence that U.S. insiders systematically trade on private information despite the legal deterrence. The consensus appears to be that insider purchases (but not sales) tend to be followed by positive abnormal stock price performance, particularly for small growth stocks.

- Prof. B. Espen Eckbo, Dartmouth College
COSTAR GROUP, INC. (CSGP)
Sector: Real Estate; Industry: Real Estate Services

CoStar Group, Inc. provides information, analytics, and online marketplaces to the commercial real estate industry in the United States and the United Kingdom. It also provides CoStar COMPS Professional that covers comparable commercial real estate sales information; CoStar Market Analytics to view and report on aggregated market and submarket trends; CoStar Tenant, an online business-to-business prospecting and analytical tool; CoStar Lease Comps, a solution to capture, manage, and maintain lease data; CoStar Lease Analysis, a workflow tool; and CoStar Public Record, a searchable database of commercially-zoned parcels. Further, it provides apartment marketing sites, such as Apartments.com, ApartmentFinder.com, ForRent.com, ApartmentHomeLiving.com, Apartamentos.com, WestsideRentals.com, AFTER55.com, CorporateHousing.com and ForRentUniversity.com; LoopNet Premium Lister and LoopNet Signature Ads for commercial real estate professionals; Realla, a commercial property listings and data management platform; LandsofAmerica, LandAndFarm, and LandWatch online marketplaces for rural land for sale; and BizBuySell, BizQuest, FindaFranchise online marketplaces for operating businesses for sale. CoStar Group, Inc. was founded in 1987 and is headquartered in Washington, the District of Columbia.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-04-30 Kaplan Laura Cox Director Sell 1,062 $869.03 $922,910 No
2021-03-23 SAINT FREDERICK G. President, Marketplaces Sell 7,834 $831.70 $6,515,538 Yes
2021-03-16 Wheeler Scott T Chief Financial Officer Sell 7,326 $843.28 $6,177,869 Yes
2021-03-10 FLORANCE ANDREW C President and CEO Sell 19,570 $818.37 $16,015,501 No
2020-09-02 Ruggles Lisa Senior VP, Global Research Sell 7,596 $870.00 $6,608,520 Yes
2020-08-27 FLORANCE ANDREW C President and CEO Sell 31,168 $849.91 $26,489,995 Yes
2020-08-12 Linnington Matthew Executive VP, Sales Sell 2,419 $826.32 $1,998,868 No
2020-08-04 Wheeler Scott T Chief Financial Officer Sell 12,002 $826.71 $9,922,173 Yes
2020-05-07 KLEIN MICHAEL R Director Sell 15,000 $639.18 $9,587,715 No
2020-03-04 Steinberg David Jay Director Sell 850 $714.00 $606,900 No
2020-03-03 Wheeler Scott T Chief Financial Officer Sell 6,005 $703.26 $4,223,076 Yes
2020-03-02 FLORANCE ANDREW C President and CEO Sell 33,600 $663.90 $22,307,040 Yes
2019-12-31 Hill John W Director Sell 500 $591.90 $295,950 No
2019-11-19 Kaplan Laura Cox Director Sell 576 $591.60 $340,762 No
2019-10-25 NASSETTA CHRISTOPHER J Director Sell 406 $570.99 $231,822 No
2019-07-31 Linnington Matthew Executive VP, Sales Sell 14,651 $617.39 $9,045,381 Yes
2019-07-29 Wheeler Scott T Chief Financial Officer Sell 6,933 $629.50 $4,364,324 Yes
2019-07-26 FLORANCE ANDREW C President and CEO Sell 24,210 $628.64 $15,219,374 No
2019-06-24 Hill John W Director Sell 315 $553.23 $174,267 No
2019-03-01 Ruggles Lisa Senior VP, Global Research Sell 1,538 $466.62 $717,662 No
2019-03-01 Linnington Matthew Executive VP, Sales Sell 4,701 $477.31 $2,243,834 Yes
2019-03-01 Wheeler Scott T Chief Financial Officer Sell 5,396 $476.11 $2,569,090 No
2019-03-04 FLORANCE ANDREW C President and CEO Sell 55,322 $473.38 $26,188,328 Yes
2018-12-26 Hill John W Director Sell 1,042 $330.88 $344,777 No
2018-10-29 NASSETTA CHRISTOPHER J Director Sell 571 $349.67 $199,662 No
2018-08-06 KLEIN MICHAEL R Director Sell 15,000 $420.69 $6,310,350 No
2018-07-30 Linnington Matthew Executive VP, Sales Sell 4,384 $411.93 $1,805,901 Yes
2018-07-27 Wheeler Scott T Chief Financial Officer Sell 4,700 $426.02 $2,002,294 Yes
2018-07-27 CARCHEDI FRANCIS Executive VP, Corp. Dev. Sell 32,671 $421.87 $13,782,915 Yes
2018-04-30 FLORANCE ANDREW C President and CEO Sell 24,821 $371.03 $9,209,313 No

Insider Smart

Liberty Media Corp (LSXMA) - BERKSHIRE HATHAWAY INC, Buffett made a move and add 2M shares to their position. What a news after dumping Airlines.

Insider Smart

CEDAR FAIR L.P. (FUN) - Another crash victim, Cedar Fair L.P. took a deep dive from $54 to $13, insiders were confidence and eagerly jumped in around $27. With insiders on your side, this would be an easy add and hold to get your cost under $20. Stock is about to breach $40 in the coming weeks.