SEC Insider Transactions from DESMARAIS MICHAEL J.

Last updated: 2026-03-17 21:00 UTC | Total transactions: 14

DESMARAIS MICHAEL J has filed 14 insider transactions across 1 company since February 2024.

Most recent transaction: a tax payment of 2873 shares of COSTAR GROUP, INC. ($CSGP) on March 15, 2026.

Activity breakdown: 0 open-market purchases and 2 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 15, 2026 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer F Common Stock, par value $0.01 per share 2873 $43.63 87,725.0000 424,900,000 3.17% 0.00%
March 10, 2026 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer A Common Stock, par value $0.01 per share 17676 $0.00 90,598.0000 424,900,000 24.24% 0.00%
Feb. 27, 2026 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer A Restricted Stock Units 17926 $0.00 17,926.0000 424,900,000 9999.99% 0.00%
March 1, 2026 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer F Common Stock, par value $0.01 per share 6353 $44.63 72,922.0000 424,900,000 8.01% 0.00%
March 15, 2025 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer F Common Stock, par value $0.01 per share 3641 $78.73 79,118.0000 409,500,000 4.40% 0.00%
March 5, 2025 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer A Common Stock, par value $0.01 per share 9026 $0.00 82,759.0000 409,500,000 12.24% 0.00%
Feb. 27, 2025 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer A Common Stock, par value $0.01 per share 18828 $0.00 77,626.0000 409,500,000 32.02% 0.00%
March 1, 2025 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer F Common Stock, par value $0.01 per share 3893 $76.25 73,733.0000 409,500,000 5.02% 0.00%
Nov. 26, 2024 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer S Common Stock, par value $0.01 per share 5500 $79.88 58,798.0000 409,500,000 8.55% 0.00%
April 26, 2024 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer S Common Stock, par value $0.01 per share 3800 $92.67 64,087.0000 409,200,000 5.60% 0.00%
March 15, 2024 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer F Common Stock, par value $0.01 per share 2267 $87.87 67,887.0000 408,100,000 3.23% 0.00%
March 1, 2024 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer F Common Stock, par value $0.01 per share 1829 $87.03 70,154.0000 408,100,000 2.54% 0.00%
March 1, 2024 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer A Common Stock, par value $0.01 per share 6924 $0.00 71,983.0000 408,100,000 10.64% 0.00%
Feb. 22, 2024 COSTAR GROUP, INC. $CSGP DESMARAIS MICHAEL J Chief Human Resources Officer A Common Stock, par value $0.01 per share 16976 $0.00 65,059.0000 408,100,000 35.31% 0.00%