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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, Q3 2023

Institutional positions in Costar Group, Inc. as of Sep 30, 2023. 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
690
−19 vs. Q2 2023
Shares held
392.0M
−6.08M (−1.5%) vs. Q2 2023
Total value
$30.1B
−$5.25B (−14.8%) vs. Q2 2023
New holders
65
276 more added
Sold out
84
251 more reduced

5 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 holdersQ3 2023: 690 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 heldQ3 2023: $30.1B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q2 2023.

Institutions holding CSGP in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Adviser Investments LLC4,570$351.4K0.01%00.0%Unchanged
Coronation Fund Managers Ltd.4,621$355.3K0.01%−1,776−27.8%Reduced
Ascent Group, LLC4,587$356.0K0.04%+279+6.5%Added
CWM, LLC4,735$364.0K0.00%+377+8.7%Added
Wellington Shields Capital Management, LLC4,750$365.2K0.05%00.0%Unchanged
Chatham Capital Group, Inc.4,800$369.1K0.08%00.0%Unchanged
HBK Sorce Advisory LLC4,978$382.8K0.02%+135+2.8%Added
Greenleaf Trust5,014$385.5K0.00%+4+0.1%Added
Wilbanks Smith & Thomas Asset Management LLC5,025$386.4K0.01%+5+0.1%Added
Massmutual Trust Co FSB5,050$388.3K0.01%+39+0.8%Added
National Asset Management, Inc.5,087$391.1K0.01%+1,254+32.7%Added
Sequoia Financial Advisors, LLC5,146$395.7K0.01%+75+1.5%Added
Signaturefd, LLC5,206$400.3K0.01%+538+11.5%Added
Kathleen S. Wright Associates Inc.5,230$401.5K0.22%+5,030+2,515.0%Added
Oarsman Capital, Inc.5,230$402.1K0.17%+1,349+34.8%Added
First Manhattan Co5,248$403.5K0.00%+4+0.1%Added
Lazard Asset Management LLC5,352$410.0K0.00%+5,324+19,014.3%Added
Wetherby Asset Management Inc5,419$416.7K0.02%+383+7.6%Added
La Banque Postale Asset Management SA5,426$417.2K0.01%+5,426New
Capital Management Associates5,500$423.0K0.62%00.0%Unchanged
Fiduciary Group LLC5,581$429.1K0.05%−169−2.9%Reduced
Horizon Investments, LLC5,682$436.9K0.01%+229+4.2%Added
Cetera Advisors LLC5,766$443.3K0.01%+359+6.6%Added
Great Valley Advisor Group, Inc.5,784$444.8K0.02%+2,457+73.9%Added
Avitas Wealth Management LLC5,813$447.0K0.09%−189−3.1%Reduced
Fund Management at Engine No. 1 LLC5,843$449.3K0.07%+523+9.8%Added
Perfromance Wealth Partners, LLC5,879$452.0K0.02%+250+4.4%Added
Angeles Investment Advisors, LLC5,925$455.6K0.04%+5,925New
Oversea-Chinese Banking CORP Ltd5,964$458.6K0.02%+5,964New
DRW Securities, LLC5,987$460.0K0.04%+5,987New
Patten & Patten Inc6,008$462.0K0.04%+1,834+43.9%Added
Boston Financial Mangement LLC6,072$466.9K0.02%00.0%Unchanged
HB Wealth Management, LLC6,205$477.1K0.01%+1,173+23.3%Added
Synovus Financial Corp6,212$477.6K0.01%−248−3.8%Reduced
Private Advisor Group, LLC6,276$482.6K0.00%−205−3.2%Reduced
Buckhead Capital Management LLC6,303$484.6K0.20%00.0%Unchanged
Fifth Third Bancorp6,377$490.3K0.00%+1,004+18.7%Added
Veriti Management LLC6,507$500.3K0.06%+618+10.5%Added
STF Management LP6,661$512.2K0.27%+4,110+161.1%Added
Advisor Partners II, LLC6,773$520.8K0.02%+1,196+21.4%Added
Illinois Municipal Retirement Fund6,779$521.0K0.01%+6,779New
Hengehold Capital Management LLC6,816$524.1K0.07%00.0%Unchanged
Baker Tilly Wealth Management, LLC6,853$526.9K0.09%−12,462−64.5%Reduced
Capstone Investment Advisors, LLC6,864$527.8K0.01%+6,864New
Mercer Global Advisors Inc6,875$529.0K0.00%+1,064+18.3%Added
Marks Group Wealth Management, Inc6,961$535.2K0.07%+200+3.0%Added
Ieq Capital, LLC7,001$538.3K0.01%+1,839+35.6%Added
Ossiam7,015$539.4K0.01%−1,906−21.4%Reduced
Verdence Capital Advisors LLC7,080$544.4K0.06%+1,072+17.8%Added
Sepio Capital, LP7,120$547.5K0.05%−340−4.6%Reduced
Penserra Capital Management LLC7,158$548.0K0.01%−259−3.5%Reduced
Altfest L J & Co Inc7,122$548.0K0.09%+852+13.6%Added
Empirical Finance, LLC7,311$562.1K0.04%+1,396+23.6%Added
Beacon Pointe Advisors, LLC7,357$565.7K0.01%−1,535−17.3%Reduced
GTS Securities LLC7,359$565.8K0.01%+4,739+180.9%Added
Alaska Permanent Fund Corp7,528$578.8K0.01%+7,528New
Sawtooth Solutions, LLC7,540$579.8K0.02%−539−6.7%Reduced
Bleakley Financial Group, LLC7,540$579.8K0.02%−539−6.7%Reduced
Glenmede Trust Co NA7,579$582.7K0.00%+7,579New
Flputnam Investment Management Co7,703$592.3K0.02%−2,096−21.4%Reduced
Thoroughbred Financial Services, LLC7,730$594.0K0.06%+7,730New
SRS Capital Advisors, Inc.7,749$595.8K0.07%+4,923+174.2%Added
Bellwether Advisors, LLC7,805$600.1K0.16%+7,805New
Seven Eight Capital, LP7,881$606.0K0.07%+7,881New
Vestmark Advisory Solutions, Inc.8,000$615.1K0.04%−19,040−70.4%Reduced
NewEdge Wealth, LLC8,198$630.3K0.02%−2,511−23.4%Reduced
O'Shaughnessy Asset Management, LLC8,227$632.6K0.01%+387+4.9%Added
Proequities, Inc.8,347$641.8K0.05%−801−8.8%Reduced
Worldquant Millennium Advisors LLC8,432$648.3K0.01%−49,627−85.5%Reduced
Baron Wealth Management LLC8,444$649.3K0.41%+120+1.4%Added
Telemus Capital, LLC8,463$650.7K0.06%+662+8.5%Added
Wolverine Trading, LLC8,485$652.4K0.01%−15,905−65.2%Reduced
Vestcor Inc8,561$658.0K0.02%−784−8.4%Reduced
AXS Investments LLC8,661$665.9K0.17%+128+1.5%Added
BluePath Capital Management, LLC8,813$677.6K0.62%+8,813New
Alberta Investment Management Corp8,900$684.3K0.01%00.0%Unchanged
Connable Office Inc9,000$692.0K0.10%00.0%Unchanged
Hills Bank & Trust Co9,072$697.5K0.08%−21−0.2%Reduced
Tokio Marine Asset Management Co Ltd9,151$703.6K0.04%−1,288−12.3%Reduced
Accretive Wealth Partners, LLC9,206$707.8K0.42%+118+1.3%Added
Kingswood Wealth Advisors, LLC9,865$758.5K0.13%+9,865New
Panagora Asset Management Inc9,883$759.9K0.00%+5+0.1%Added
Harbor Advisors LLC10,060$773.5K0.17%00.0%Unchanged
Old Mission Capital LLC10,318$793.4K0.03%+10,318New
Wedbush Securities Inc10,400$800.0K0.04%−72−0.7%Reduced
Kestra Advisory Services, LLC10,476$805.5K0.01%−696−6.2%Reduced
Motley Fool Asset Management LLC10,501$807.4K0.06%+1,076+11.4%Added
Atria Wealth Solutions, Inc.10,505$807.8K0.01%−82−0.8%Reduced
Jump Financial, LLC10,609$815.7K0.03%+1,266+13.6%Added
Regatta Capital Group, LLC10,940$841.2K0.27%−236−2.1%Reduced
Roundview Capital LLC10,997$845.6K0.09%+118+1.1%Added
Vontobel Holding Ltd.11,203$861.4K0.01%+11,203New
Legacy Advisors, LLC11,239$864.2K0.14%+603+5.7%Added
FIL Ltd11,388$875.6K0.00%+956+9.2%Added
Toroso Investments, LLC11,458$881.0K0.03%+1,276+12.5%Added
Parallel Advisors, LLC11,488$883.3K0.03%+5,342+86.9%Added
Bokf, NA12,059$885.3K0.02%−717−5.6%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main11,546$887.8K0.00%+2,546+28.3%Added
United Services Automobile Association11,601$892.0K0.02%+11,601New
Icon Wealth Partners, LLC11,652$895.9K0.10%−447−3.7%Reduced