COSTAR GROUP, INC. - CSGP

Insiders (Form 4) · last 180 days · showing up to 200 transactions · Form 144 is shown in the SEC filings tab · Updating…
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Transaction codes: P = Open-market purchase · S = Open-market sale · A = Grant/award · M = Exercise/conversion of derivative · G = Gift · F = Tax withholding · J = Other · A/D: A = Acquired (buy/receive) · D = Disposed (sell/give)
Filed Owner Title Code A/D Shares Price Value Shares after SEC
Mar 17, 2026 General Counsel and Secretary F D 482.0 43.63 21,029.66 95,463.0 View
Mar 17, 2026 General Counsel and Secretary F D 428.0 43.63 18,673.64 95,517.0 View
Mar 17, 2026 Chief Human Resources Officer F D 2,873.0 43.63 125,348.99 87,725.0 View
Mar 17, 2026 Senior VP, Global Operations F D 2,977.0 43.63 129,886.51 174,915.0 View
Mar 17, 2026 Chief Technology Officer F D 11,107.0 43.63 484,598.41 414,491.0 View
Mar 17, 2026 Chief Accounting Officer F D 1,194.0 43.63 52,094.22 25,148.0 View
Mar 11, 2026 Chief Financial Officer A A 12,268.0 135,250.0 View
Mar 11, 2026 Chief Human Resources Officer A A 17,676.0 90,598.0 View
Mar 11, 2026 General Counsel and Secretary A A 21,920.0 95,945.0 View
Mar 11, 2026 President and CEO A A 124,162.0 1,651,435.03 View
Mar 11, 2026 Chief Accounting Officer A A 4,374.0 26,342.0 View
Mar 09, 2026 P A 1,000.0 48.36 48,360.0 20,409.0 View
Mar 03, 2026 President, Marketplaces P A 20,000.0 45.33 906,600.0 279,851.0 View
Mar 03, 2026 President, Marketplaces F D 11,096.0 44.63 495,214.48 259,851.0 View
Mar 03, 2026 P A 1,000.0 44.94 44,940.0 4,157.0 View
Mar 03, 2026 Chief Technology Officer A A 52,869.0 0.0 0.0 52,869.0 View
Mar 03, 2026 Chief Technology Officer F D 18,702.0 44.63 834,670.26 425,598.0 View
Mar 03, 2026 Senior VP, Global Operations A A 28,197.0 0.0 0.0 28,197.0 View
Mar 03, 2026 Senior VP, Global Operations F D 8,931.0 44.63 398,590.53 177,892.0 View
Mar 03, 2026 Chief Accounting Officer A A 6,834.0 0.0 0.0 6,834.0 View
Mar 03, 2026 Chief Accounting Officer F D 1,385.0 44.63 61,812.55 21,968.0 View
Mar 03, 2026 Chief Human Resources Officer A A 17,926.0 0.0 0.0 17,926.0 View
Mar 03, 2026 Chief Human Resources Officer F D 6,353.0 44.63 283,534.39 72,922.0 View
Mar 03, 2026 General Counsel and Secretary A A 26,888.0 0.0 0.0 26,888.0 View
Mar 03, 2026 General Counsel and Secretary F D 4,547.0 44.63 202,932.61 74,025.0 View
Mar 03, 2026 President and CEO A A 83,708.0 0.0 0.0 83,708.0 View
Mar 03, 2026 President and CEO F D 59,593.0 44.63 2,659,635.59 1,527,273.03 View
Mar 03, 2026 President, Marketplaces A A 39,652.0 0.0 0.0 39,652.0 View
Mar 03, 2026 Chief Financial Officer A A 39,652.0 0.0 0.0 39,652.0 View
Mar 03, 2026 Chief Financial Officer F D 7,175.0 44.63 320,220.25 122,982.0 View
Mar 02, 2026 President and CEO P A 55,720.0 44.52 2,480,654.4 1,586,866.03 View
Feb 23, 2026 President and CEO F D 19,221.0 49.07 943,174.47 1,531,146.03 View
Feb 23, 2026 President and CEO D D 104,983.0 0.0 0.0 1,550,367.03 View
Feb 23, 2026 President, Marketplaces F D 2,149.0 49.07 105,451.43 270,947.0 View
Feb 23, 2026 President, Marketplaces D D 17,583.0 0.0 0.0 273,096.0 View
Feb 23, 2026 Chief Technology Officer F D 4,421.0 49.07 216,938.47 444,300.0 View
Feb 23, 2026 Chief Technology Officer D D 30,727.0 0.0 0.0 448,721.0 View
Feb 23, 2026 Senior VP, Global Operations F D 3,219.0 49.07 157,956.33 186,823.0 View
Feb 23, 2026 Senior VP, Global Operations D D 17,583.0 0.0 0.0 190,042.0 View
Feb 18, 2026 Senior VP, Global Operations F D 3,576.0 44.99 160,884.24 207,625.0 View
Feb 18, 2026 President and CEO F D 17,482.0 44.99 786,515.18 1,655,350.03 View
Feb 18, 2026 Chief Technology Officer F D 4,151.0 44.99 186,753.49 479,448.0 View
Feb 18, 2026 President, Marketplaces F D 2,424.0 44.99 109,055.76 290,679.0 View
Nov 17, 2025 S D 2,250.0 68.68 154,530.0 18,231.0 View
Nov 17, 2025 Chief Accounting Officer S D 1,841.0 68.79 126,642.39 23,211.0 View