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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
Avion Wealth15$00.00%+8+114.3%Added
NBC Securities, Inc.10$00.00%+10New
Motco1$770.00%00.0%Unchanged
Colonial Trust Advisors2$1540.00%00.0%Unchanged
Manchester Capital Management LLC4$3080.00%+2+100.0%Added
Carolinas Wealth Consulting LLC5$3670.00%00.0%Unchanged
True Wealth Design, LLC5$3850.00%00.0%Unchanged
North Star Investment Management Corp.7$5380.00%00.0%Unchanged
Tfo-TDC, LLC7$6230.00%+3+75.0%Added
Glass Jacobson Investment Advisors llc10$7690.00%00.0%Unchanged
Global Trust Asset Management, LLC10$7690.00%00.0%Unchanged
Key Financial Inc10$7690.00%00.0%Unchanged
TFC Financial Management10$7690.00%00.0%Unchanged
Highline Wealth Partners LLC12$9230.00%00.0%Unchanged
Migdal Insurance & Financial Holdings Ltd.7$1.00K0.00%−78−91.8%Reduced
Valley National Advisers Inc10$1.00K0.00%+10New
Perkins Coie Trust Co16$1.23K0.00%+16New
Salem Investment Counselors Inc20$1.54K0.00%00.0%Unchanged
Earnest Partners LLC20$1.54K0.00%00.0%Unchanged
Jones Financial Companies LLLP22$1.69K0.00%+22New
Psagot Value Holdings Ltd. / (Israel)30$2.00K0.00%00.0%Unchanged
Financial Management Professionals, Inc.21$2.00K0.00%00.0%Unchanged
SJS Investment Consulting Inc.28$2.15K0.00%+3+12.0%Added
Stonebridge Capital Advisors LLC30$2.31K0.00%00.0%Unchanged
Jackson, Grant Investment Advisers, Inc.30$2.31K0.00%00.0%Unchanged
Oliver Lagore Vanvalin Investment Group31$2.38K0.00%+31New
Sandy Spring Bank32$2.46K0.00%+32New
AdvisorNet Financial, Inc36$2.77K0.00%−22−37.9%Reduced
PayPay Securities Corp37$2.85K0.14%00.0%Unchanged
Raffa Wealth Management, LLC40$3.08K0.00%00.0%Unchanged
Versant Capital Management, Inc43$3.31K0.00%00.0%Unchanged
Paloma Partners Management Co46$3.54K0.00%−7,399−99.4%Reduced
Baystate Wealth Management LLC47$3.61K0.00%00.0%Unchanged
Creative Financial Designs Inc48$3.69K0.00%+48New
Red Tortoise LLC50$3.85K0.00%00.0%Unchanged
HM Payson & Co50$3.85K0.00%+50New
Clear Street Markets LLC46$4.00K0.00%−93−66.9%Reduced
Washington Trust Advisors, Inc.54$4.15K0.00%00.0%Unchanged
Itau Unibanco Holding S.A.55$4.23K0.00%00.0%Unchanged
Northwest Investment Counselors, LLC60$4.61K0.00%00.0%Unchanged
Bellevue Asset Management, LLC61$4.69K0.00%+2+3.4%Added
JJJ Advisors Inc.61$4.69K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC68$5.23K0.00%00.0%Unchanged
Zions Bancorporation, N.A.70$5.38K0.00%00.0%Unchanged
Sutton Wealth Advisors Inc.72$5.54K0.00%+52+260.0%Added
Heritage Wealth Advisors76$5.84K0.00%−679−89.9%Reduced
Washington Trust Co76$5.84K0.00%+2+2.7%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP80$5.92K0.00%00.0%Unchanged
Clearstead Advisors, LLC80$6.15K0.00%00.0%Unchanged
Farther Finance Advisors, LLC81$6.23K0.00%+38+88.4%Added
ORG Partners LLC82$6.28K0.00%−11−11.8%Reduced
Cherry Tree Wealth Management, LLC85$6.54K0.00%00.0%Unchanged
Private Trust Co NA86$6.61K0.00%+16+22.9%Added
JNBA Financial Advisors88$6.77K0.00%00.0%Unchanged
Abound Wealth Management89$6.84K0.00%−4−4.3%Reduced
Larson Financial Group LLC91$7.00K0.00%−139−60.4%Reduced
Smithfield Trust Co90$7.00K0.00%00.0%Unchanged
GW&K Investment Management, LLC95$7.00K0.00%+7+8.0%Added
Annis Gardner Whiting Capital Advisors, LLC92$7.07K0.00%+92New
West Branch Capital LLC100$7.69K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC100$7.69K0.00%+1+1.0%Added
Orion Capital Management LLC100$7.69K0.01%+100New
Hexagon Capital Partners LLC101$7.77K0.00%+19+23.2%Added
Baker Avenue Asset Management, LP107$8.23K0.00%+3+2.9%Added
IFP Advisors, Inc112$8.61K0.00%+23+25.8%Added
GWM Advisors LLC118$9.07K0.00%−6−4.8%Reduced
Liberty One Investment Management, LLC119$9.15K0.00%+15+14.4%Added
Gould Capital, LLC125$9.50K0.01%−11,114−98.9%Reduced
Asset Dedication, LLC131$10.0K0.00%00.0%Unchanged
USA Financial Portformulas Corp136$10.5K0.02%+125+1,136.4%Added
MV Capital Management, Inc.141$10.8K0.00%+12+9.3%Added
Bell Investment Advisors, Inc148$11.4K0.00%−20−11.9%Reduced
Concord Wealth Partners150$11.5K0.00%00.0%Unchanged
Quent Capital, LLC152$11.7K0.00%00.0%Unchanged
Avalon Trust Co153$11.8K0.00%00.0%Unchanged
Steward Financial Group LLC161$12.0K0.00%+161New
Bogart Wealth, LLC162$12.5K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.138$13.0K0.00%+39+39.4%Added
Core Alternative Capital181$13.9K0.00%00.0%Unchanged
Harbour Investments, Inc.193$14.8K0.00%+26+15.6%Added
Annapolis Financial Services, LLC210$16.1K0.00%00.0%Unchanged
Sugarloaf Wealth Management, LLC240$18.5K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC252$19.4K0.00%+52+26.0%Added
Farmers & Merchants Investments Inc270$20.8K0.00%+18+7.1%Added
Parallax Volatility Advisers, L.P.274$21.1K0.00%+274New
Catalyst Capital Advisors LLC302$23.2K0.00%+78+34.8%Added
Sunbelt Securities, Inc.308$23.7K0.00%−192−38.4%Reduced
Beacon Capital Management, LLC270$24.0K0.01%00.0%Unchanged
Central Trust Co341$26.2K0.00%−114−25.1%Reduced
Leonteq Securities AG357$27.4K0.00%+97+37.3%Added
Riverview Trust Co360$27.7K0.02%00.0%Unchanged
Castleview Partners, LLC368$28.3K0.03%00.0%Unchanged
Silicon Valley Capital Partners378$29.1K0.01%00.0%Unchanged
Livforsakringsbolaget Skandia, Omsesidigt400$30.8K0.00%00.0%Unchanged
Glassman Wealth Services418$32.1K0.01%−4−0.9%Reduced
Rise Advisors, LLC460$35.4K0.03%+282+158.4%Added
McIlrath & Eck, LLC478$36.8K0.01%00.0%Unchanged
Taikang Asset Management (Hong Kong) Co Ltd61,114$36.8K1.07%00.0%Unchanged
Covestor Ltd484$37.0K0.03%−201−29.3%Reduced
Wolverine Asset Management LLC500$38.4K0.00%00.0%Unchanged