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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

CSGP

COSTAR GROUP, INC.

Superinvestors

Institutional investors holding CSGP

Consensus →
InvestorFundWeightSharesValueQuarter
Chuck AkreAkre Capital Management6.80%10,348,273$417.4M2026Q1
Dennis HongShawSpring Partners5.11%339,081$13.7M2026Q1
Polen Capital ManagementPolen Capital Management3.51%12,570,368$507.1M2026Q1
Daniel LoebThird Point2.93%3,165,000$212.8M2025Q4
Triple Frond PartnersTriple Frond Partners2.36%122,027$3.7M2009Q1
Wallace WeitzWeitz Investment Management1.46%517,025$20.9M2026Q1
Chase ColemanTiger Global Management0.26%1,500,000$60.5M2026Q1
Viking Global InvestorsViking Global Investors0.26%1,442,582$97.0M2025Q4
Hillman Capital ManagementHillman Value Fund0.24%8,557$345K2026Q1
First Eagle Investment ManagementFirst Eagle Investment Management0.01%19,270$1.3M2012Q1
Kenneth FisherFisher Asset Management0.00%73$6K2023Q4
Meridian / ArrowMarkMeridian Contrarian Fund0.00%2,375$200K2025Q3

Congressional Activity

Congressional data coming soon

Insider Activity

2

Total trades

$2.5M

Volume

2

Buys

0

Sells

Last trade: May 1, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
May 1, 2026Andrew C FloranceBuy$2.4M
May 1, 2026Andrew C FloranceBuy$111K

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.