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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, Q1 2025

Institutional positions in Costar Group, Inc. as of Mar 31, 2025. 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
858
+66 vs. Q4 2024
Shares held
428.6M
+26.5M (+6.6%) vs. Q4 2024
Total value
$33.9B
+$5.15B (+17.9%) vs. Q4 2024
New holders
141
378 more added
Sold out
75
263 more reduced

13 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 858 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 heldQ1 2025: $33.9B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2024.

Institutions holding CSGP in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Quent Capital, LLC133$10.5K0.00%−11−7.6%Reduced
Cherry Tree Wealth Management, LLC147$11.6K0.00%00.0%Unchanged
South State Corp.149$11.8K0.00%+149New
Sunbelt Securities, Inc.152$12.0K0.00%−6−3.8%Reduced
MV Capital Management, Inc.152$12.0K0.00%+18+13.4%Added
Washington Trust Advisors, Inc.162$12.9K0.00%+41+33.9%Added
Ronald Blue Trust, Inc.165$13.1K0.00%−101−38.0%Reduced
Saudi Central Bank166$13.2K0.07%+166New
Private Wealth Asset Management, LLC170$13.5K0.00%+170New
Truvestments Capital LLC172$13.6K0.00%00.0%Unchanged
Headlands Technologies LLC175$13.9K0.00%−5,316−96.8%Reduced
Capital Advisors, Ltd. LLC180$14.0K0.00%+180New
Bogart Wealth, LLC180$14.3K0.00%−67−27.1%Reduced
Private Wealth Management Group, LLC185$14.7K0.01%+58+45.7%Added
Garde Capital, Inc.188$14.9K0.00%+188New
Bell Investment Advisors, Inc206$16.3K0.00%00.0%Unchanged
Center for Financial Planning, Inc.220$17.4K0.00%+220New
Harbour Investments, Inc.268$21.2K0.00%+128+91.4%Added
Farmers & Merchants Investments Inc270$21.4K0.00%00.0%Unchanged
Covestor Ltd275$22.0K0.01%+29+11.8%Added
Hemington Wealth Management282$22.0K0.00%+97+52.4%Added
Opal Wealth Advisors, LLC301$23.8K0.01%+301New
NewSquare Capital LLC303$24.0K0.00%+265+697.4%Added
Catalyst Capital Advisors LLC318$25.2K0.00%−1−0.3%Reduced
Cornerstone Planning Group LLC310$25.4K0.01%+72+30.3%Added
McIlrath & Eck, LLC338$26.8K0.00%00.0%Unchanged
Winthrop Capital Management, LLC346$27.0K0.01%−5−1.4%Reduced
Hexagon Capital Partners LLC347$27.5K0.01%−216−38.4%Reduced
Hopwood Financial Services, Inc.350$27.7K0.02%00.0%Unchanged
Riverview Trust Co360$28.5K0.03%00.0%Unchanged
Marshall & Sterling Wealth Advisors Inc.362$28.7K0.02%+362New
Wayfinding Financial, LLC371$29.0K0.01%+371New
Bayforest Capital Ltd369$29.2K0.01%+369New
Brown Brothers Harriman & Co377$29.9K0.00%+278+280.8%Added
Dynamic Wealth Strategies, LLC385$30.5K0.03%+385New
Zions Bancorporation, National Association389$30.8K0.00%+389New
Ancora Advisors, LLC405$32.1K0.00%+3+0.7%Added
Cullen/Frost Bankers, Inc.406$32.2K0.00%+235+137.4%Added
Pin Oak Investment Advisors Inc418$33.0K0.03%+418New
Annis Gardner Whiting Capital Advisors, LLC418$33.1K0.01%−81−16.2%Reduced
Pinnacle Bancorp, Inc.428$33.9K0.01%00.0%Unchanged
Financial Network Wealth Advisors LLC466$36.9K0.05%+18+4.0%Added
Close Asset Management Ltd520$41.0K0.00%+520New
IFP Advisors, Inc540$43.1K0.00%+52+10.7%Added
Park Place Capital Corp545$43.2K0.01%00.0%Unchanged
Centricity Wealth Management, LLC560$44.4K0.04%00.0%Unchanged
GW&K Investment Management, LLC563$45.0K0.00%+64+12.8%Added
Rise Advisors, LLC618$49.0K0.02%−112−15.3%Reduced
Private Trust Co NA627$49.7K0.01%−4−0.6%Reduced
Colonial Trust Co640$50.7K0.01%−34−5.0%Reduced
HFM Investment Advisors, LLC641$50.8K0.02%+641New
SBI Securities Co., Ltd.652$51.7K0.00%+226+53.1%Added
Twin Lakes Capital Management, LLC679$53.8K0.04%+679New
Spire Wealth Management683$54.1K0.00%−431−38.7%Reduced
Central Pacific Bank - Trust Division688$54.5K0.01%00.0%Unchanged
Promus Capital, LLC759$60.1K0.05%00.0%Unchanged
WPG Advisers, LLC772$61.2K0.06%−171−18.1%Reduced
Pension & Wealth Management Advisors, Inc.805$63.8K0.02%+137+20.5%Added
CVA Family Office, LLC843$66.8K0.01%+186+28.3%Added
Geneos Wealth Management Inc.865$68.5K0.00%+511+144.4%Added
Cromwell Holdings LLC969$76.8K0.05%+969New
Belvedere Trading LLC978$77.5K0.01%+978New
Central Trust Co982$77.8K0.00%00.0%Unchanged
Focused Wealth Management, Inc1,000$79.2K0.01%+1,000New
TruNorth Capital Management, LLC1,003$79.5K0.02%+1,003New
EverSource Wealth Advisors, LLC1,076$85.3K0.00%−1,641−60.4%Reduced
Sentry Investment Management LLC1,173$89.0K0.06%−351−23.0%Reduced
Versant Capital Management, Inc1,194$94.6K0.02%+963+416.9%Added
Farther Finance Advisors, LLC1,210$95.8K0.00%+360+42.4%Added
Abound Wealth Management1,253$99.3K0.03%−28−2.2%Reduced
Loomis Sayles & Co L P1,287$102.0K0.00%+205+18.9%Added
TD Private Client Wealth LLC1,298$102.8K0.00%−134−9.4%Reduced
HighMark Wealth Management LLC1,299$102.9K0.06%−13−1.0%Reduced
Assetmark, Inc1,307$103.6K0.00%−1,969−60.1%Reduced
Harel Insurance Investments & Financial Services Ltd.1,318$104.0K0.00%+868+192.9%Added
Rothschild Investment LLC1,325$105.0K0.01%+129+10.8%Added
Vega Investment Solutions1,337$105.9K0.02%+1,337New
Leonteq Securities AG1,453$113.3K0.01%+1,178+428.4%Added
Whittier Trust Co of Nevada Inc1,440$114.1K0.00%+30+2.1%Added
GWM Advisors LLC1,473$116.7K0.00%+1,295+727.5%Added
Westpac Banking Corp1,593$126.2K0.01%−587−26.9%Reduced
Proathlete Wealth Management LLC1,666$132.0K0.05%+1,666New
Jones Financial Companies LLLP1,676$132.9K0.00%+355+26.9%Added
Delta Asset Management LLC1,760$139.4K0.01%00.0%Unchanged
Paradigm Asset Management Co LLC1,800$142.6K0.04%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA1,870$148.2K0.05%+220+13.3%Added
Johnson Financial Group, Inc.1,936$153.4K0.01%+1,813+1,474.0%Added
GeoWealth Management, LLC1,952$154.7K0.01%−1,058−35.1%Reduced
MAI Capital Management1,979$156.8K0.00%+476+31.7%Added
Whittier Trust Co2,000$158.4K0.00%00.0%Unchanged
Skopos Labs, Inc.2,010$159.3K0.03%+919+84.2%Added
Massmutual Trust Co FSB2,022$160.2K0.00%−28−1.4%Reduced
Livforsakringsbolaget Skandia, Omsesidigt2,100$166.4K0.01%00.0%Unchanged
Larson Financial Group LLC2,293$181.7K0.01%+2,265+8,089.3%Added
Bryn Mawr Trust Co2,306$182.7K0.00%−986−30.0%Reduced
Stephenson National Bank & Trust2,433$192.8K0.07%−113−4.4%Reduced
Mather Group, LLC.2,484$196.8K0.00%+419+20.3%Added
Lindbrook Capital, LLC2,513$199.1K0.02%+1,893+305.3%Added
Csenge Advisory Group2,517$200.6K0.01%+2,517New
Castleview Partners, LLC2,534$200.8K0.14%+11+0.4%Added