Harbor Advisors’s CoStar Group CSGP Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	$1.81M	Hold	22,560	–	–	0.3%	47
2025 Q1	$1.79M	Hold	22,560	–	–	0.31%	45
2024 Q4	$1.62M	Buy	22,560 +2,500	+12%	+$179K	0.25%	51
2024 Q3	$1.51M	Buy	20,060 +3,000	+18%	+$226K	0.25%	51
2024 Q2	$1.26M	Hold	17,060	–	–	0.23%	52
2024 Q1	$1.65M	Hold	17,060	–	–	0.3%	46
2023 Q4	$1.49M	Buy	17,060 +7,000	+70%	+$612K	0.29%	44
2023 Q3	$774K	Hold	10,060	–	–	0.17%	73
2023 Q2	$895K	Hold	10,060	–	–	0.19%	58
2023 Q1	$693K	Hold	10,060	–	–	0.16%	67
2022 Q4	$777K	Hold	10,060	–	–	0.19%	66
2022 Q3	$701K	Hold	10,060	–	–	0.19%	67
2022 Q2	$608K	Hold	10,060	–	–	0.15%	74
2022 Q1	$670K	Hold	10,060	–	–	0.14%	77
2021 Q4	$795K	Hold	10,060	–	–	0.15%	75
2021 Q3	$866K	Hold	10,060	–	–	0.17%	68
2021 Q2	$833K	Buy	10,060 +9,054	+900%	+$750K	0.16%	68
2021 Q1	$827K	Hold	1,006	–	–	0.18%	65
2020 Q4	$930K	Hold	1,006	–	–	0.21%	57
2020 Q3	$854K	Hold	1,006	–	–	0.2%	54
2020 Q2	$715K	Hold	1,006	–	–	0.18%	56
2020 Q1	$591K	Hold	1,006	–	–	0.18%	56
2019 Q4	$602K	Hold	1,006	–	–	0.16%	73
2019 Q3	$597K	Hold	1,006	–	–	0.17%	74
2019 Q2	$557K	Buy	1,006 +200	+25%	+$111K	0.17%	84
2019 Q1	$376K	Hold	806	–	–	0.12%	106
2018 Q4	$272K	Hold	806	–	–	0.11%	123
2018 Q3	$339K	Hold	806	–	–	0.11%	131
2018 Q2	$333K	Hold	806	–	–	0.11%	128
2018 Q1	$292K	Buy	+806	New	+$292K	0.1%	138