Andrew C Florance Costar Group, Inc. (CSGP) insider trading activity

Andrew C Florance is President and CEO of COSTAR GROUP, INC.. Currently has a direct ownership of 1.26 Million shares of CSGP, which is worth approximately $92.1 Million. The most recent transaction as insider was on Oct 25, 2024, when has been sold 14,731 shares (Common Stock, par value $0.01 per share) at a price of $74.67 per share, resulting in proceeds of $1,099,963. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 1.26M

1.18% 3M change

29.64% 12M change

Total Value Held $92.1 Million

ANDREW C FLORANCE Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 25 2024	BUY Open market or private purchase	$1,099,963 $74.67 p/Share	14,731 Added 1.15%	1,263,098 Common Stock, par valu...
Mar 01 2024	SELL Payment of exercise price or tax liability	$2,108,562 $87.03 p/Share	24,228 Reduced 1.9%	1,248,367 Common Stock, par valu...
Feb 22 2024	SELL Payment of exercise price or tax liability	$1,852,430 $83.98 p/Share	22,058 Reduced 2.38%	904,755 Common Stock, par valu...
Feb 22 2024	SELL Sale (or disposition) back to the issuer	-	31,200 Reduced 3.26%	926,813 Common Stock, par valu...
Feb 22 2024	BUY Grant, award, or other acquisition	-	367,840 Added 22.42%	1,272,595 Common Stock, par valu...
Feb 15 2024	SELL Payment of exercise price or tax liability	$1,341,486 $82.32 p/Share	16,296 Reduced 1.67%	958,013 Common Stock, par valu...
Apr 28 2023	SELL Open market or private sale	$27,677,888 $76.77 p/Share	360,530 Reduced 27.01%	974,309 Common Stock, par valu...
Apr 28 2023	BUY Exercise of conversion of derivative security	$6,590,488 $18.28 p/Share	360,530 Added 21.27%	1,334,839 Common Stock, par valu...
Mar 15 2023	SELL Payment of exercise price or tax liability	$626,228 $67.62 p/Share	9,261 Reduced 0.94%	974,309 Common Stock, par valu...
Mar 15 2023	BUY Grant, award, or other acquisition	-	37,844 Added 3.71%	983,570 Common Stock, par valu...
Mar 01 2023	SELL Payment of exercise price or tax liability	$1,711,667 $70.66 p/Share	24,224 Reduced 2.45%	964,087 Common Stock, par valu...
Feb 15 2023	SELL Payment of exercise price or tax liability	$957,523 $76.78 p/Share	12,471 Reduced 1.25%	988,311 Common Stock, par valu...
Feb 14 2023	SELL Sale (or disposition) back to the issuer	-	68,537 Reduced 8.75%	714,882 Common Stock, par valu...
Feb 14 2023	BUY Grant, award, or other acquisition	-	285,900 Added 22.22%	1,000,782 Common Stock, par valu...
Sep 14 2022	BUY Grant, award, or other acquisition	-	48 Added 0.01%	783,419 Common Stock, par valu...
Mar 01 2022	SELL Payment of exercise price or tax liability	$704,116 $61.01 p/Share	11,541 Reduced 1.45%	783,371 Common Stock, par valu...
Feb 16 2022	SELL Sale (or disposition) back to the issuer	-	34,685 Reduced 5.1%	645,582 Common Stock, par valu...
Feb 16 2022	SELL Payment of exercise price or tax liability	$3,423,083 $67.69 p/Share	50,570 Reduced 7.83%	595,012 Common Stock, par valu...
Feb 16 2022	BUY Grant, award, or other acquisition	-	199,900 Added 20.09%	794,912 Common Stock, par valu...
Feb 15 2022	SELL Payment of exercise price or tax liability	$2,136,954 $65.99 p/Share	32,383 Reduced 4.54%	680,267 Common Stock, par valu...
Mar 10 2021	SELL Open market or private sale	$16,015,501 $818.37 p/Share	19,570 Reduced 20.46%	76,085 Common Stock, par valu...
Feb 28 2021	SELL Payment of exercise price or tax liability	$4,548,803 $823.76 p/Share	5,522 Reduced 5.46%	95,655 Common Stock, par valu...
Feb 28 2021	SELL Sale (or disposition) back to the issuer	-	799 Reduced 0.78%	101,177 Common Stock, par valu...
Feb 18 2021	BUY Grant, award, or other acquisition	-	18,160 Added 15.12%	101,976 Common Stock, par valu...
Feb 15 2021	SELL Payment of exercise price or tax liability	$3,105,907 $939.76 p/Share	3,305 Reduced 3.79%	83,816 Common Stock, par valu...

ACF

Andrew C Florance

President and CEO

Washington, DC

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