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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 2023

Institutional positions in Costar Group, Inc. as of Mar 31, 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
692
−4 vs. Q4 2022
Shares held
388.8M
−4.89M (−1.2%) vs. Q4 2022
Total value
$26.7B
−$3.59B (−11.8%) vs. Q4 2022
New holders
81
261 more added
Sold out
85
266 more reduced

8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 2023: 692 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 2023: $26.7B
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 2023

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2022.

Institutions holding CSGP in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
McClarren Financial Advisors, Inc.2$00.00%00.0%Unchanged
GW&K Investment Management, LLC4$00.00%+4New
Clear Street Markets LLC4$00.00%+4New
Colonial Trust Advisors2$1380.00%00.0%Unchanged
Tfo-TDC, LLC4$2750.00%−78−95.1%Reduced
Carolinas Wealth Consulting LLC5$3440.00%−396−98.8%Reduced
True Wealth Design, LLC5$3450.00%00.0%Unchanged
Central Bank & Trust Co7$4810.00%+7New
North Star Investment Management Corp.7$4820.00%00.0%Unchanged
25 LLC7$5210.00%+7New
SJS Investment Consulting Inc.8$5510.00%−21−72.4%Reduced
Versant Capital Management, Inc9$6200.00%00.0%Unchanged
Key Financial Inc10$6880.00%00.0%Unchanged
Global Trust Asset Management, LLC10$6890.00%00.0%Unchanged
Private Ocean, LLC10$6890.00%+10New
USA Financial Portformulas Corp11$7570.00%+11New
Highline Wealth Partners LLC12$8260.00%+4+50.0%Added
Lazard Asset Management LLC28$1.00K0.00%−28,498−99.9%Reduced
Capital Advisors, Ltd. LLC17$1.00K0.00%−72−80.9%Reduced
NFJ Investment Group, LLC19$1.31K0.00%−8,490−99.8%Reduced
Sutton Wealth Advisors Inc.20$1.38K0.00%−4−16.7%Reduced
Salem Investment Counselors Inc20$1.38K0.00%00.0%Unchanged
Earnest Partners LLC20$1.38K0.00%00.0%Unchanged
Disciplined Investments, LLC23$1.58K0.00%−3−11.5%Reduced
Cutler Group LP38$2.00K0.00%−911−96.0%Reduced
Stonebridge Capital Advisors LLC30$2.07K0.00%00.0%Unchanged
Farther Finance Advisors, LLC37$2.55K0.00%−257−87.4%Reduced
Accel Wealth Management39$2.69K0.00%00.0%Unchanged
Raffa Wealth Management, LLC40$2.75K0.00%00.0%Unchanged
Baystate Wealth Management LLC40$2.75K0.00%00.0%Unchanged
PayPay Securities Corp42$2.89K0.19%−27−39.1%Reduced
Financial Management Professionals, Inc.45$3.00K0.00%+41+1,025.0%Added
BerganKDV Wealth Management, LLC46$3.17K0.00%−2−4.2%Reduced
Larson Financial Group LLC47$3.24K0.00%00.0%Unchanged
Abound Wealth Management47$3.24K0.00%+16+51.6%Added
Red Tortoise LLC50$3.44K0.00%00.0%Unchanged
Washington Trust Advisors, Inc.54$3.72K0.00%−106−66.3%Reduced
Itau Unibanco Holding S.A.54$3.72K0.00%00.0%Unchanged
Bellevue Asset Management, LLC59$4.06K0.00%00.0%Unchanged
Northwest Investment Counselors, LLC60$4.13K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.61$4.19K0.00%+61New
JJJ Advisors Inc.61$4.22K0.00%+4+7.0%Added
Schubert & Co62$4.27K0.00%−18−22.5%Reduced
Raleigh Capital Management Inc.68$4.68K0.00%−180−72.6%Reduced
Prestige Wealth Management Group LLC68$4.68K0.00%+32+88.9%Added
Steward Financial Group LLC78$5.00K0.00%+50+178.6%Added
BDO Wealth Advisors, LLC73$5.03K0.00%+73New
Hexagon Capital Partners LLC75$5.16K0.00%−23−23.5%Reduced
Zions Bancorporation, N.A.77$5.30K0.00%−2,521−97.0%Reduced
Washington Trust Co79$5.44K0.00%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP80$5.51K0.00%00.0%Unchanged
Pinnacle Financial Partners Inc84$5.78K0.00%00.0%Unchanged
MV Capital Management, Inc.87$5.99K0.00%+46+112.2%Added
Smithfield Trust Co90$6.00K0.00%00.0%Unchanged
JNBA Financial Advisors88$6.06K0.00%+88New
Clearstead Advisors, LLC95$6.54K0.00%+19+25.0%Added
JFS Wealth Advisors, LLC99$6.82K0.00%−5−4.8%Reduced
West Branch Capital LLC100$6.88K0.00%00.0%Unchanged
Orion Capital Management LLC100$6.88K0.00%00.0%Unchanged
Providence Capital Advisors, LLC100$6.88K0.00%+100New
AdvisorNet Financial, Inc102$7.02K0.00%−93−47.7%Reduced
Oakworth Capital, Inc.102$7.02K0.00%00.0%Unchanged
Liberty One Investment Management, LLC104$7.16K0.00%+104New
Baker Avenue Asset Management, LP107$7.37K0.00%−5−4.5%Reduced
WealthPlan Investment Management, LLC110$7.57K0.00%+110New
Ronald Blue Trust, Inc.102$8.00K0.00%+25+32.5%Added
GWM Advisors LLC118$8.13K0.00%−597−83.5%Reduced
China Universal Asset Management Co., Ltd.123$8.47K0.00%+123New
Asset Dedication, LLC131$9.00K0.00%+41+45.6%Added
Concord Wealth Partners150$10.3K0.00%00.0%Unchanged
Quent Capital, LLC152$10.5K0.00%+22+16.9%Added
Avalon Trust Co153$10.5K0.00%+153New
Bell Investment Advisors, Inc155$10.7K0.00%−35−18.4%Reduced
EverSource Wealth Advisors, LLC158$10.9K0.00%+15+10.5%Added
Core Alternative Capital159$10.9K0.00%+40+33.6%Added
Bogart Wealth, LLC162$11.2K0.00%+138+575.0%Added
Migdal Insurance & Financial Holdings Ltd.182$12.0K0.00%+119+188.9%Added
Rise Advisors, LLC178$12.3K0.01%00.0%Unchanged
Fortis Capital Advisors, LLC188$12.9K0.01%−1−0.5%Reduced
Logan Capital Management Inc200$13.8K0.00%00.0%Unchanged
Ten Capital Wealth Advisors, LLC206$14.2K0.00%+206New
Annapolis Financial Services, LLC210$14.5K0.00%00.0%Unchanged
Leonteq Securities AG217$14.9K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc230$15.8K0.00%00.0%Unchanged
Private Trust Co NA232$16.0K0.00%00.0%Unchanged
Sugarloaf Wealth Management, LLC240$16.5K0.00%00.0%Unchanged
Catalyst Capital Advisors LLC241$16.6K0.00%−79−24.7%Reduced
TCI Wealth Advisors, Inc.280$19.3K0.00%−1−0.4%Reduced
Sunbelt Securities, Inc.308$21.0K0.00%+308New
Arlington Partners LLC305$21.0K0.00%+305New
Colonial Trust Co352$24.0K0.01%00.0%Unchanged
Quarry LP358$24.6K0.01%+154+75.5%Added
Riverview Trust Co360$24.8K0.02%00.0%Unchanged
Castleview Partners, LLC368$25.3K0.02%00.0%Unchanged
CVA Family Office, LLC380$26.2K0.01%−195−33.9%Reduced
Harel Insurance Investments & Financial Services Ltd.392$27.0K0.00%+392New
Livforsakringsbolaget Skandia, Omsesidigt400$27.5K0.00%00.0%Unchanged
Glassman Wealth Services403$27.7K0.00%+25+6.6%Added
Global Retirement Partners, LLC410$30.2K0.00%+320+355.6%Added
Central Trust Co455$31.3K0.00%−12−2.6%Reduced