COSTAR GROUP INC (CSGP) Institutional Ownership Changes & 13F Activity

COSTAR GROUP INC (CSGP). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Citadel Advisors Llc, Fayez Sarofim & Co, Envestnet Asset Management Inc, State Street Corp, and Andra Ap-Fonden.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncSell-266,953-14.8%1,535,584$43.49MQ2 2026Sep 23, 2026
Envestnet Portfolio Solutions, Inc.Buy+17,067+5.3%341,444$9.67MQ2 2026Sep 23, 2026
Qrg Capital Management, Inc.Buy+1,366+4.4%32,305$914.89KQ2 2026Sep 23, 2026
State Street CorpSell-240,099-1.3%18,410,876$521.40MQ2 2026Sep 22, 2026
Andra Ap-FondenBuy+164,500—164,500$4.66MQ2 2026Sep 22, 2026
Anchor Investment Management, LlcBuy+51—51$1.44KQ2 2026Sep 15, 2026
Manufacturers Life Insurance Company, TheSell-22,189-8.9%226,560$6.42MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+5,895+71.2%14,178$401.52KQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+679+16.0%4,935$139.76KQ2 2026Sep 04, 2026
Citadel Advisors LlcSell-346,306-31.8%741,898$21.01MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhSell-3,526-12.6%24,475$693.13KQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcSell-21-35.6%38$1.08KQ2 2026Aug 28, 2026
Corient Private Wealth LlcBuy+2,275+2.9%81,676$2.31MQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+13,573+2.0%680,684$19.28MQ2 2026Aug 24, 2026
Cyber Hornet Etfs LlcSell-53-4.5%1,112$31.49KQ2 2026Aug 24, 2026
Ashford Capital Management IncSell-14,390-14.0%88,100$2.49MQ2 2026Aug 21, 2026
Mercer Global Advisors IncBuy+110,805+231.9%158,582$4.49MQ2 2026Aug 19, 2026
North Star Asset Management IncBuy+57,651+105.9%112,073$3.17MQ2 2026Aug 18, 2026
Rakuten Investment Management, Inc.Sell-20,276-23.0%68,040$1.99MQ2 2026Aug 18, 2026
Liontrust Investment Partners LlpBuy+6,734+23.8%35,058$992.84KQ2 2026Aug 18, 2026
Fulcrum Asset Management LlpBuy+656—656$19.23KQ2 2026Aug 18, 2026
Twin Lakes Capital Management, LlcSell-21-3.4%598$16.93KQ2 2026Aug 18, 2026
Fayez Sarofim & CoSell-283,044-75.6%91,531$2.59MQ2 2026Aug 17, 2026
Jefferies Financial Group Inc.Buy+138,455+1347.4%148,731$4.21MQ2 2026Aug 17, 2026
Empowered Funds, LlcSell-23,813-58.1%17,174$486.37KQ2 2026Aug 17, 2026
Centaurus Financial, Inc.Sell-17,144-56.1%13,390$379.00KQ2 2026Aug 17, 2026
United Capital Financial Advisors, LlcBuy+13,659+129.3%24,222$685.97KQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioSell-5,852-4.8%117,069$3.32MQ2 2026Aug 17, 2026
Capstone Investment Advisors, LlcBuy+4,489+46.6%14,117$399.79KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+288+33.2%1,156$32.74KQ2 2026Aug 17, 2026
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Frequently asked questions about CSGP activity

  • Which institutional owners are buying CSGP?

    Institutional owners buying CSGP include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in CSGP activity?

    "Buy" means an investor increased their reported position in CSGP compared to the prior reporting period. This reflects growing exposure to COSTAR GROUP INC (CSGP) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in CSGP increasing?

    Institutional interest in CSGP can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.