Driehaus Capital Management’s CoStar Group CSGP Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-96,183	Closed	-$7.73M	–	456
2025 Q2	$7.73M	Sell	96,183 -51,810	-35%	-$4.04M	0.06%	278
2025 Q1	$11.7M	Buy	+147,993	New	+$11.3M	0.11%	222
2020 Q4	–	Sell	-3,290	Closed	-$279K	–	427
2020 Q3	$279K	Buy	3,290 +420	+15%	+$33.5K	0.01%	366
2020 Q2	$204K	Sell	2,870 -4,620	-62%	-$299K	0.01%	367
2020 Q1	$440K	Sell	7,490 -1,080	-13%	-$70.4K	0.01%	305
2019 Q4	$513K	Sell	8,570 -750	-8%	-$43.8K	0.01%	392
2019 Q3	$553K	Buy	9,320 +1,680	+22%	+$101K	0.02%	402
2019 Q2	$423K	Buy	7,640 +1,670	+28%	+$85.3K	0.01%	393
2019 Q1	$278K	Buy	+5,970	New	+$247K	0.01%	360
2018 Q4	–	Sell	-68,150	Closed	-$2.87M	–	427
2018 Q3	$2.87M	Buy	68,150 +8,450	+14%	+$361K	0.09%	248
2018 Q2	$2.46M	Sell	59,700 -7,470	-11%	-$287K	0.08%	247
2018 Q1	$2.44M	Buy	67,170 +8,340	+14%	+$287K	0.09%	233
2017 Q4	$1.75M	Buy	58,830 +20,640	+54%	+$605K	0.07%	281
2017 Q3	$1.02M	Buy	+38,190	New	+$1.06M	0.04%	320
2016 Q3	–	Sell	-9,460	Closed	-$207K	–	530
2016 Q2	$207K	Buy	+9,460	New	+$187K	0.01%	506
2016 Q1	–	Sell	-16,320	Closed	-$337K	–	564
2015 Q4	$337K	Buy	+16,320	New	+$325K	0.01%	477
2015 Q3	–	Sell	-171,880	Closed	-$3.46M	–	558
2015 Q2	$3.46M	Buy	171,880 +18,440	+12%	+$376K	0.12%	218
2015 Q1	$3.04M	Buy	+153,440	New	+$2.9M	0.11%	242
2014 Q3	–	Sell	-378,880	Closed	-$5.99M	–	545
2014 Q2	$5.99M	Buy	378,880 +20,000	+6%	+$324K	0.21%	139
2014 Q1	$6.7M	Sell	358,880 -117,540	-25%	-$2.22M	0.23%	133
2013 Q4	$8.79M	Sell	476,420 -125,740	-21%	-$2.22M	0.33%	89
2013 Q3	$10.1M	Sell	602,160 -23,920	-4%	-$367K	0.42%	73
2013 Q2	$8.08M	Buy	+626,080	New	+$7.08M	0.38%	85