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Costar Group, Inc.

CSGP
Exchange
Nasdaq
Industry
Services-Business Services, NEC
SEC CIK
0001057352

In the last 90 days, Costar Group, Inc. insiders filed 1 open-market purchase and 2 sales; 760 institutions reported holding it in 13F filings for Q2 2026, worth $11.7B in total; superinvestors Akre Capital Management and Weitz Investment Management hold it.

13F holders, Q4 2021

Institutional positions in Costar Group, Inc. as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
633
+48 vs. Q3 2021
Shares held
375.1M
−165.5K (0.0%) vs. Q3 2021
Total value
$29.6B
−$2.64B (−8.2%) vs. Q3 2021
New holders
113
229 more added
Sold out
65
214 more reduced

9 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CSGP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 633 institutions
Q1 2021: 593 institutionsQ2 2021: 607 institutionsQ3 2021: 594 institutionsQ4 2021: 633 institutionsQ1 2022: 589 institutionsQ2 2022: 591 institutionsQ3 2022: 634 institutionsQ4 2022: 704 institutionsQ1 2023: 692 institutionsQ2 2023: 714 institutionsQ3 2023: 690 institutionsQ4 2023: 737 institutionsQ1 2024: 767 institutionsQ2 2024: 767 institutionsQ3 2024: 773 institutionsQ4 2024: 805 institutionsQ1 2025: 858 institutionsQ2 2025: 873 institutionsQ3 2025: 905 institutionsQ4 2025: 847 institutionsQ1 2026: 797 institutionsQ2 2026: 760 institutions
Value heldQ4 2021: $29.6B
Q1 2021: $31.2BQ2 2021: $31.1BQ3 2021: $32.3BQ4 2021: $29.6BQ1 2022: $25.2BQ2 2022: $23.0BQ3 2022: $28.0BQ4 2022: $30.4BQ1 2023: $26.7BQ2 2023: $35.5BQ3 2023: $30.1BQ4 2023: $34.4BQ1 2024: $38.4BQ2 2024: $29.3BQ3 2024: $30.0BQ4 2024: $28.9BQ1 2025: $33.9BQ2 2025: $34.2BQ3 2025: $34.9BQ4 2025: $28.4BQ1 2026: $16.8BQ2 2026: $11.7B
Institutions holding CSGP and their total value by quarter
QuarterHoldersValue
Q2 2026760$11.7B
Q1 2026797$16.8B
Q4 2025847$28.4B
Q3 2025905$34.9B
Q2 2025873$34.2B
Q1 2025858$33.9B
Q4 2024805$28.9B
Q3 2024773$30.0B
Q2 2024767$29.3B
Q1 2024767$38.4B
Q4 2023737$34.4B
Q3 2023690$30.1B
Q2 2023714$35.5B
Q1 2023692$26.7B
Q4 2022704$30.4B
Q3 2022634$28.0B
Q2 2022591$23.0B
Q1 2022589$25.2B
Q4 2021633$29.6B
Q3 2021594$32.3B
Q2 2021607$31.1B
Q1 2021593$31.2B

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q3 2021.

Institutions holding CSGP in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Steward Partners Investment Advisory, LLC60$5.00K0.00%−30−33.3%Reduced
Bellevue Asset Management, LLC60$5.00K0.00%+4+7.1%Added
Selective Wealth Management, Inc.50$4.00K0.00%00.0%Unchanged
Wolff Wiese Magana LLC50$4.00K0.00%00.0%Unchanged
Lazard Asset Management LLC51$4.00K0.00%+51New
Raffa Wealth Management, LLC40$3.16K0.00%00.0%Unchanged
Baystate Wealth Management LLC40$3.00K0.00%00.0%Unchanged
Jones Financial Companies LLLP40$3.00K0.00%+40New
Dark Forest Capital Management LP29$2.00K0.00%−442−93.8%Reduced
JNBA Financial Advisors30$2.00K0.00%−240−88.9%Reduced
Stonebridge Capital Advisors LLC30$2.00K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC30$2.00K0.00%00.0%Unchanged
Salem Investment Counselors Inc20$2.00K0.00%00.0%Unchanged
AdvisorNet Financial, Inc25$2.00K0.00%+25New
Benjamin Edwards Inc21$2.00K0.00%+21New
Core Alternative Capital20$2.00K0.00%+20New
Sierra Capital LLC31$2.00K0.00%+31New
Psagot Value Holdings Ltd. / (Israel)22$2.00K0.00%+22New
Exane Derivatives20$1.58K0.00%00.0%Unchanged
Sutton Wealth Advisors Inc.19$1.50K0.00%+19New
Hantz Financial Services, Inc.16$1.00K0.00%−6,675−99.8%Reduced
HighMark Wealth Management LLC17$1.00K0.00%−5−22.7%Reduced
HC Financial Advisors Inc10$1.00K0.00%00.0%Unchanged
Private Ocean, LLC10$1.00K0.00%00.0%Unchanged
Patriot Financial Group Insurance Agency, LLC9$1.00K0.00%−1−10.0%Reduced
Global Trust Asset Management, LLC10$1.00K0.00%00.0%Unchanged
Key Financial Inc10$1.00K0.00%00.0%Unchanged
Schubert & Co17$1.00K0.00%+17New
TCI Wealth Advisors, Inc.2$00.00%−180−98.9%Reduced
Allworth Financial LP4$00.00%−149−97.4%Reduced
Capital Advisors, Ltd. LLC5$00.00%+5New
Versant Capital Management, Inc6$00.00%+6New
Western Pacific Wealth Management, LP6$00.00%+6New
Voloridge Investment Management, LLC0$00.00%−176,119−100.0%Sold out
Rice Hall James & Associates, LLC0$00.00%−120,636−100.0%Sold out
AMP Capital Investors Ltd0$00.00%−96,813−100.0%Sold out
Tsai Capital Corp0$00.00%−84,630−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−83,445−100.0%Sold out
Jag Capital Management, LLC0$00.00%−67,205−100.0%Sold out
Nicholas Investment Partners, LP0$00.00%−45,483−100.0%Sold out
Zweig-DiMenna Associates LLC0$00.00%−41,668−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−36,956−100.0%Sold out
Mirabella Financial Services LLP0$00.00%−33,570−100.0%Sold out
Quadrature Capital Ltd0$00.00%−30,368−100.0%Sold out
Quantitative Investment Management, LLC0$00.00%−29,210−100.0%Sold out
EFG Asset Management (Americas) Corp.0$00.00%−28,190−100.0%Sold out
Intrinsic Edge Capital Management LLC0$00.00%−27,480−100.0%Sold out
TBH Global Asset Management, LLC0$00.00%−26,409−100.0%Sold out
Fortis Capital Management LLC0$00.00%−22,000−100.0%Sold out
E. Ohman J:or Asset Management AB0$00.00%−18,000−100.0%Sold out
Avestar Capital, LLC0$00.00%−14,221−100.0%Sold out
Oak Ridge Investments LLC0$00.00%−12,223−100.0%Sold out
Brookfield Asset Management Inc.0$00.00%−11,729−100.0%Sold out
Maverick Capital LtdSuperinvestorMaverick Capital0$00.00%−11,538−100.0%Sold out
Gardner Lewis Asset Management L P0$00.00%−9,650−100.0%Sold out
RMR Wealth Builders0$00.00%−9,510−100.0%Sold out
Unigestion Holding SA0$00.00%−9,450−100.0%Sold out
Hood River Capital Management LLC0$00.00%−8,433−100.0%Sold out
Centiva Capital, LP0$00.00%−6,966−100.0%Sold out
Yorktown Management & Research Co Inc0$00.00%−5,500−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−4,596−100.0%Sold out
Integrated Advisors Network LLC0$00.00%−4,578−100.0%Sold out
CFM Wealth Partners LLC0$00.00%−4,540−100.0%Sold out
Bellevue Group AG0$00.00%−3,500−100.0%Sold out
O'Shaughnessy Asset Management, LLC0$00.00%−3,458−100.0%Sold out
Private Trust Co NA0$00.00%−2,810−100.0%Sold out
1832 Asset Management L.P.0$00.00%−2,747−100.0%Sold out
Security National Bank of So Dak0$00.00%−2,660−100.0%Sold out
Proficio Capital Partners LLC0$00.00%−2,661−100.0%Sold out
Ieq Capital, LLC0$00.00%−2,555−100.0%Sold out
CastleArk Alternatives, LLC0$00.00%−2,550−100.0%Sold out
Hennion & Walsh Asset Management, Inc.0$00.00%−2,450−100.0%Sold out
Kore Private Wealth LLC0$00.00%−2,389−100.0%Sold out
Kovack Advisors, Inc.0$00.00%−2,348−100.0%Sold out
Flputnam Investment Management Co0$00.00%−2,340−100.0%Sold out
CIBC World Markets Inc.0$00.00%−2,334−100.0%Sold out
State of Wyoming0$00.00%−790−100.0%Sold out
Spectrum Management Group, LLC0$00.00%−616−100.0%Sold out
Creative Financial Designs Inc0$00.00%−550−100.0%Sold out
Consolidated Planning Corp0$00.00%−480−100.0%Sold out
Arkadios Wealth Advisors0$00.00%−420−100.0%Sold out
Clearstead Advisors, LLC0$00.00%−393−100.0%Sold out
Liberty Wealth Management LLC0$00.00%−343−100.0%Sold out
Meridian Wealth Partners, LLC0$00.00%−242−100.0%Sold out
Plante Moran Financial Advisors, LLC0$00.00%−190−100.0%Sold out
Meeder Asset Management Inc0$00.00%−180−100.0%Sold out
Jackson Wealth Management, LLC0$00.00%−59,114−100.0%Sold out
Bellwether Advisors, LLC0$00.00%−116−100.0%Sold out
BI Asset Management Fondsmaeglerselskab A/S0$00.00%−90−100.0%Sold out
Optimum Investment Advisors0$00.00%−83−100.0%Sold out
Jacobi Capital Management LLC0$00.00%−70−100.0%Sold out
Investors Research Corp0$00.00%−70−100.0%Sold out
Perkins Coie Trust Co0$00.00%−50−100.0%Sold out
Hartford Financial Management Inc.0$00.00%−30−100.0%Sold out
Clean Yield Group0$00.00%−40−100.0%Sold out
Red Tortoise LLC0$00.00%−50−100.0%Sold out
True Link Financial Advisors, LLC0$00.00%−20−100.0%Sold out
Newbridge Financial Services Group, Inc.0$00.00%−20−100.0%Sold out
B. Metzler seel. Sohn & Co. Holding AG––––Not filed
Hexavest Inc.––––Not filed