CoStar Group, Inc. (CSGP)

Historical Shares Outstanding

Current Count

404.4M

Financial Fundamentals

CSGP • Quarterly Data • 5Y View

Share Count History

Date	Shares Out. (M)	Change (M)	Change %
2026-06-30	404.4	-9.6	-2.32%
2026-03-31	414.0	-5.6	-1.33%
2025-12-31	419.6	-0.3	-0.07%
2025-09-30	419.9	-4.4	-1.04%
2025-06-30	424.3	13.8	+3.36%
2025-03-31	410.5	2.1	+0.51%
2024-12-31	408.4	0.4	+0.10%
2024-09-30	408.0	0.6	+0.15%
2024-06-30	407.4	0.1	+0.02%
2024-03-31	407.3	-0.2	-0.05%
2023-12-31	407.5	0.3	+0.07%
2023-09-30	407.2	0.5	+0.12%
2023-06-30	406.8	0.6	+0.14%
2023-03-31	406.2	0.1	+0.03%
2022-12-31	406.1	9.9	+2.49%
2022-09-30	396.2	1.7	+0.44%
2022-06-30	394.5	0.2	+0.06%
2022-03-31	394.2	-0.3	-0.08%
2021-12-31	394.5	0.2	+0.06%
2021-09-30	394.3	0.2	+0.05%
2021-06-30	394.1	0.4	+0.10%
2021-03-31	393.7	-0.2	-0.06%
2020-12-31	394.0	-0.1	-0.02%
2020-09-30	394.0	16.7	+4.42%
2020-06-30	377.3	9.6	+2.60%
2020-03-31	367.8	1.0	+0.28%
2019-12-31	366.7	0.2	+0.06%
2019-09-30	366.5	0.3	+0.07%
2019-06-30	366.3	0.6	+0.16%
2019-03-31	365.7	0.9	+0.25%
2018-12-31	364.7	-0.4	-0.12%
2018-09-30	365.2	0.7	+0.19%
2018-06-30	364.5	1.0	+0.28%
2018-03-31	363.5	2.3	+0.64%
2017-12-31	361.2	33.0	+10.07%
2017-09-30	328.1	0.8	+0.23%
2017-06-30	327.4	1.8	+0.54%
2017-03-31	325.6	0.9	+0.28%
2016-12-31	324.7	0.3	+0.10%
2016-09-30	324.4	-0.1	-0.02%
2016-06-30	324.5	0.7	+0.20%
2016-03-31	323.8	1.0	+0.30%
2015-12-31	322.8	3.0	+0.95%
2015-09-30	319.8	-0.1	-0.03%
2015-06-30	319.9	1.6	+0.50%
2015-03-31	318.3	-3.1	-0.97%
2014-12-31	321.4	0.7	+0.21%
2014-09-30	320.8	25.9	+8.78%
2014-06-30	294.9	6.5	+2.24%
2014-03-31	288.4	4.0	+1.41%
2013-12-31	284.4	0.9	+0.31%
2013-09-30	283.5	1.8	+0.64%
2013-06-30	281.7	7.4	+2.70%
2013-03-31	274.3	-3.0	-1.07%
2012-12-31	277.2	0.5	+0.18%
2012-09-30	276.7	12.1	+4.56%
2012-06-30	264.7	9.4	+3.67%
2012-03-31	255.3	4.0	+1.59%
2011-12-31	251.3	-1.9	-0.75%
2011-09-30	253.2	28.9	+12.89%
2011-06-30	224.3	14.6	+6.97%
2011-03-31	209.7	4.3	+2.11%
2010-12-31	205.3	-1.6	-0.76%
2010-09-30	206.9	0.6	+0.31%
2010-06-30	206.2	0.2	+0.11%
2010-03-31	206.0	3.5	+1.74%
2009-12-31	202.5	1.6	+0.82%
2009-09-30	200.8	4.5	+2.27%
2009-06-30	196.4	0.8	+0.39%
2009-03-31	195.6	0.9	+0.48%
2008-12-31	194.7	-1.4	-0.69%
2008-09-30	196.0	1.0	+0.49%
2008-06-30	195.1	1.4	+0.72%
2008-03-31	193.7	1.5	+0.79%
2007-12-31	192.2	-2.6	-1.32%
2007-09-30	194.8	1.3	+0.66%
2007-06-30	193.5	1.4	+0.73%
2007-03-31	192.1	3.1	+1.65%
2006-12-31	189.0	-2.3	-1.22%
2006-09-30	191.3	-1.3	-0.68%
2006-06-30	192.6	-0.1	-0.04%
2006-03-31	192.7	5.8	+3.09%
2005-12-31	186.9	-4.0	-2.10%
2005-09-30	190.9	2.2	+1.19%
2005-06-30	188.7	0.1	+0.04%
2005-03-31	188.6	5.4	+2.96%
2004-12-31	183.2	-5.8	-3.07%
2004-09-30	189.0	1.3	+0.68%
2004-06-30	187.7	0.7	+0.39%
2004-03-31	187.0	7.4	+4.11%
2003-12-31	179.6	14.8	+8.97%
2003-09-30	164.8	6.3	+3.95%
2003-06-30	158.6	0.4	+0.27%
2003-03-31	158.1	0.0	0.00%
2002-12-31	158.1	0.4	+0.23%
2002-09-30	157.8	0.3	+0.22%
2002-06-30	157.4	0.2	+0.14%
2002-03-31	157.2	0.6	+0.40%
2001-12-31	156.6	0.0	0.00%
2001-09-30	156.6	0.5	+0.30%
2001-06-30	156.1	0.3	+0.22%
2001-03-31	155.8	1.6	+1.06%
2000-12-31	154.1	0.0	0.00%
2000-09-30	154.1	0.2	+0.13%
2000-06-30	153.9	11.4	+7.98%
2000-03-31	142.5	10.5	+7.98%
1999-12-31	132.0	3.8	+2.94%
1999-09-30	128.2	15.2	+13.43%
1999-06-30	113.0	13.0	+13.04%
1999-03-31	100.0	16.7	+20.00%
1998-12-31	83.3	-0.0	-0.00%
1998-09-30	83.3	26.2	+45.83%
1998-06-30	57.1	0.0	0.00%
1998-03-31	57.1	—	—