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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 2022

Institutional positions in Costar Group, Inc. as of Mar 31, 2022. 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
589
−37 vs. Q4 2021
Shares held
378.5M
+3.52M (+0.9%) vs. Q4 2021
Total value
$25.2B
−$4.44B (−15.0%) vs. Q4 2021
New holders
68
245 more added
Sold out
105
203 more reduced

7 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2022: 589 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 2022: $25.2B
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 2022

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2021.

Institutions holding CSGP in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Bank of Nova Scotia8,495$566.0K0.00%+3,945+86.7%Added
Accretive Wealth Partners, LLC8,507$567.0K0.36%+559+7.0%Added
Hills Bank & Trust Co8,540$569.0K0.08%−50−0.6%Reduced
Exchange Traded Concepts, LLC8,568$571.0K0.01%−2,076−19.5%Reduced
CenterBook Partners LP8,571$571.0K0.20%+8,571New
JustInvest LLC8,607$573.0K0.03%+4,626+116.2%Added
Equitable Trust Co8,686$579.0K0.04%−319−3.5%Reduced
Chicago Trust Co NA8,810$587.0K0.13%−1,280−12.7%Reduced
TownSquare Capital, LLC8,968$597.0K0.02%+2,742+44.0%Added
Connable Office Inc9,000$599.0K0.08%00.0%Unchanged
Thompson Siegel & Walmsley LLC9,000$599.0K0.01%+6,000+200.0%Added
Gilbert & Cook, Inc.9,031$602.0K0.10%−4,029−30.8%Reduced
NFJ Investment Group, LLC9,058$603.0K0.01%−158−1.7%Reduced
Cohen & Steers, Inc.9,166$611.0K0.00%−1,136−11.0%Reduced
Northwestern Mutual Wealth Management Co9,193$613.0K0.00%+5,319+137.3%Added
Optas, LLC9,235$615.0K0.20%+2,092+29.3%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.9,292$619.0K0.00%−494−5.0%Reduced
RMR Wealth Builders9,510$633.0K0.14%+9,510New
Winton Group Ltd9,596$639.0K0.03%−470−4.7%Reduced
Ellsworth Advisors, LLC10,291$652.0K0.23%−25−0.2%Reduced
San Luis Wealth Advisors LLC8,285$655.0K0.32%−7−0.1%Reduced
Sigma Planning Corp9,860$657.0K0.02%+715+7.8%Added
Tocqueville Asset Management L.P.10,000$666.0K0.01%00.0%Unchanged
Walleye Capital LLC10,028$668.0K0.02%+10,028New
Harbor Advisors LLC10,060$670.0K0.14%00.0%Unchanged
NewEdge Wealth, LLC10,306$686.0K0.03%00.0%Unchanged
Manufacturers Life Insurance Company, The10,321$687.5K0.00%+417+4.2%Added
Spire Wealth Management10,390$692.0K0.02%−133,394−92.8%Reduced
Wealthfront Advisers LLC10,408$693.0K0.00%+10,408New
Atria Wealth Solutions, Inc.10,500$699.0K0.01%+10,500New
Creative Planning10,871$724.0K0.00%+579+5.6%Added
Wolverine Trading, LLC11,012$749.0K0.02%−31,115−73.9%Reduced
Bridges Investment Management Inc11,440$762.0K0.02%00.0%Unchanged
Private Advisor Group, LLC11,696$780.0K0.01%−3,482−22.9%Reduced
Proequities, Inc.11,812$787.0K0.06%−6,793−36.5%Reduced
Engineers Gate Manager LP11,855$790.0K0.03%+801+7.2%Added
Regatta Capital Group, LLC11,964$797.0K0.27%+164+1.4%Added
Panagora Asset Management Inc12,007$800.0K0.00%+1,152+10.6%Added
Quantbot Technologies LP12,365$823.0K0.07%−7,889−39.0%Reduced
Old National Bancorp12,431$828.0K0.03%−64,621−83.9%Reduced
Picton Mahoney Asset Management12,700$846.0K0.03%−120,460−90.5%Reduced
Phraction Management LLC12,810$853.0K0.49%00.0%Unchanged
Diversified Trust Co12,955$863.0K0.03%+3,950+43.9%Added
BFSG, LLC13,401$893.0K0.14%+13,401New
Southeast Asset Advisors Inc.13,443$895.0K0.12%+13,443New
Wedbush Securities Inc13,488$898.0K0.04%−67−0.5%Reduced
Buckhead Capital Management LLC13,513$900.0K0.19%+2,268+20.2%Added
KLK Capital Management LLC13,668$910.0K0.92%+427+3.2%Added
Emerald Advisers, LLC13,815$920.0K0.04%−111−0.8%Reduced
Stansberry Asset Management, LLC13,991$932.0K0.17%+13,991New
Clear Street Markets LLC14,000$933.0K0.28%+14,000New
Citizens Financial Group Inc14,049$936.0K0.03%+440+3.2%Added
Chicago Partners Investment Group LLC17,013$942.0K0.07%+1,065+6.7%Added
Gould Capital, LLC14,551$969.0K0.70%+4,070+38.8%Added
Pitcairn Co14,562$970.0K0.08%+79+0.5%Added
Kestra Advisory Services, LLC14,837$988.0K0.01%+8,090+119.9%Added
Keybank National Association14,859$990.0K0.00%−5,600−27.4%Reduced
Full18 Capital LLC16,299$994.0K0.23%+16,299New
Baker Tilly Wealth Management, LLC14,966$997.0K0.11%+4,305+40.4%Added
IVC Wealth Advisors LLC15,331$1.02M0.67%+1,185+8.4%Added
Assetmark, Inc15,334$1.02M0.00%+11,052+258.1%Added
Threadgill Financial, LLC15,411$1.03M0.41%−198−1.3%Reduced
Greenline Partners, LLC15,551$1.04M0.19%−1,753−10.1%Reduced
Segall Bryant & Hamill, LLC15,627$1.04M0.01%−14,658−48.4%Reduced
Raymond James Financial Services Advisors, Inc.15,683$1.04M0.00%+8,253+111.1%Added
M&T Bank Corp15,961$1.06M0.00%−4,465−21.9%Reduced
Oppenheimer & Co Inc16,318$1.09M0.02%+866+5.6%Added
Pearl River Capital, LLC16,689$1.11M0.31%+16,689New
Captrust Financial Advisors16,707$1.11M0.01%+6,966+71.5%Added
Conestoga Capital Advisors, LLC16,810$1.12M0.02%−120−0.7%Reduced
EagleClaw Capital Managment, LLC17,310$1.15M0.26%00.0%Unchanged
AlphaCrest Capital Management LLC17,487$1.17M0.07%−7,672−30.5%Reduced
Allianz Asset Management GmbH17,549$1.17M0.00%−14,483−45.2%Reduced
Tributary Capital Management, LLC17,600$1.17M0.09%−2,000−10.2%Reduced
Markel Group Inc.SuperinvestorMarkel Group17,600$1.17M0.01%+14,500+467.7%Added
Insight Wealth Strategies, LLC17,736$1.18M0.17%+1,196+7.2%Added
Fifth Third Bancorp18,038$1.20M0.00%−7,810−30.2%Reduced
CIBC Asset Management Inc18,061$1.20M0.00%+100+0.6%Added
Cannon Global Investment Management, LLC18,100$1.21M0.87%−2,400−11.7%Reduced
Brown Brothers Harriman & Co18,280$1.22M0.01%+1,750+10.6%Added
Fiduciary Group LLC22,566$1.22M0.16%−16,960−42.9%Reduced
Redwood Investments, LLC18,431$1.23M0.12%−1,386−7.0%Reduced
Canada Pension Plan Investment Board18,792$1.25M0.00%−178,358−90.5%Reduced
Institute for Wealth Management, LLC.18,951$1.26M0.21%−32−0.2%Reduced
Seeyond18,972$1.26M0.13%+2,272+13.6%Added
Brinker Capital Investments, LLC18,995$1.26M0.02%−4,513−19.2%Reduced
Dark Forest Capital Management LP19,296$1.28M0.30%+19,267+66,437.9%Added
Tower Research Capital LLC (TRC)19,375$1.29M0.01%−3,167−14.0%Reduced
Leisure Capital Management19,395$1.29M0.65%+981+5.3%Added
Icon Wealth Partners, LLC19,423$1.29M0.13%+9,490+95.5%Added
Centaurus Financial, Inc.19,606$1.31M0.10%+8,659+79.1%Added
Redmond Asset Management, LLC19,765$1.32M0.39%+300+1.5%Added
D.A. Davidson & Co.20,009$1.33M0.01%+2,363+13.4%Added
Commonwealth Equity Services, LLC20,068$1.34M0.00%+676+3.5%Added
Sciencast Management LP20,839$1.35M0.31%−22,116−51.5%Reduced
Chartwell Investment Partners, LLC20,332$1.35M0.05%−70.0%Reduced
Malaga Cove Capital, LLC20,494$1.36M0.63%−63−0.3%Reduced
Mariner, LLC20,784$1.38M0.01%+2,964+16.6%Added
Nordea Investment Management AB20,560$1.39M0.00%00.0%Unchanged
Candriam Luxembourg S.C.A.21,023$1.40M0.01%+1,400+7.1%Added