DF DENT & CO INC

Position in CSGP — Costar Group, Inc.

CIK 934999 BALTIMORE, MD

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Position in CSGP

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$64,752,033

-$70,241,008 QoQ

Shares Held

1,605,157

-20.0% QoQ

Ownership

0.396%

of shares outstanding

% of Portfolio

1.25%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSGP Over Time

Shares Held

Position Value (USD)

All Filings in CSGP

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$64,752,033	1,605,157	-20.0%	Shares	Sole	2026-05-15
2025-12-31	$134,993,041	2,007,630	-7.8%	Shares	Sole	2026-02-17
2025-09-30	$183,734,573	2,177,724	-4.1%	Shares	Sole	2025-11-14
2025-06-30	$182,537,748	2,270,370	-4.1%	Shares	Sole	2025-08-14
2025-03-31	$187,548,819	2,367,144	-3.6%	Shares	Sole	2025-05-15
2024-12-31	$175,865,273	2,456,562	+38.5%	Shares	Sole	2025-02-12
2024-09-30	$133,798,724	1,773,578	-5.8%	Shares	Sole	2024-11-15
2024-06-30	$139,578,410	1,882,633	-3.3%	Shares	Sole	2024-08-14
2024-03-31	$188,138,353	1,947,602	-1.5%	Shares	Sole	2024-05-15
2023-12-31	$172,792,926	1,977,262	-3.0%	Shares	Sole	2024-02-14
2023-09-30	$156,667,527	2,037,554	-4.7%	Shares	Sole	2023-11-14
2023-06-30	$190,317,511	2,138,399	-3.0%	Shares	Sole	2023-08-14
2023-03-31	$151,814,731	2,205,007	-2.1%	Shares	Sole	2023-05-15
2022-12-31	$174,125,595	2,253,178	-16.6%	Shares	Sole	2023-02-15
2022-09-30	$188,077,636	2,700,325	-10.8%	Shares	Sole	2022-11-14
2022-06-30	$182,864,150	3,027,051	+9.4%	Shares	Sole	2022-08-15
2022-03-31	$184,261,111	2,766,268	+7.0%	Shares	Sole	2022-05-16
2021-12-31	$204,294,367	2,585,023	-5.9%	Shares	Sole	2022-02-14
2021-09-30	$236,457,853	2,747,593	+19.6%	Shares	Sole	2021-11-15
2021-06-30	$190,250,791	2,297,160	+908.5%	Shares	Sole	2021-08-16
2021-03-31	$187,202,707	227,771	+0.0%	Shares	Sole	2021-05-17
2020-12-31	$210,515,861	227,762	+1.5%	Shares	Sole	2021-02-16
2020-09-30	$190,358,127	224,344	+4.9%	Shares	Sole	2020-11-16
2020-06-30	$152,057,795	213,964	+0.8%	Shares	Sole	2020-08-14
2020-03-31	$124,689,345	212,342	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.