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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
Jennison Associates LLC594,174$39.6M0.03%−1,018,096−63.1%Reduced
Millennium Management LLC615,591$41.0M0.05%−456,079−42.6%Reduced
Parametric Portfolio Associates LLC627,185$41.8M0.02%−32,166−4.9%Reduced
Peregrine Capital Management LLC642,073$42.8M1.01%+3,473+0.5%Added
Invesco Ltd.647,336$43.1M0.01%−15,907−2.4%Reduced
California State Teachers Retirement System659,485$43.9M0.06%−39,106−5.6%Reduced
APG Asset Management N.V.781,907$46.8M0.09%−630,086−44.6%Reduced
Citadel Advisors LLC706,056$47.0M0.05%+535,718+314.5%Added
Deutsche Bank AG706,999$47.1M0.02%+14,003+2.0%Added
Two Sigma Investments, LP709,123$47.2M0.14%+537,018+312.0%Added
TimesSquare Capital Management, LLC711,800$47.4M0.53%−54,200−7.1%Reduced
CIBC Private Wealth Group, LLC717,697$47.8M0.10%−708,308−49.7%Reduced
TD Asset Management Inc736,267$49.0M0.04%−70,814−8.8%Reduced
American Capital Management Inc773,492$51.5M1.52%+28,157+3.8%Added
California Public Employees Retirement System776,886$51.7M0.04%−56,525−6.8%Reduced
SEI Investments Co796,088$53.0M0.11%−97,745−10.9%Reduced
Renaissance Technologies LLC803,780$53.5M0.06%−35,900−4.3%Reduced
Rathbone Brothers plc829,000$55.2M0.56%00.0%Unchanged
Victory Capital Management Inc852,570$56.0M0.06%−242,298−22.1%Reduced
Mitsubishi UFJ Trust & Banking Corp876,157$58.4M0.13%−6,068−0.7%Reduced
Dimensional Fund Advisors LP883,761$58.9M0.02%+13,855+1.6%Added
Baird Financial Group, Inc.884,943$58.9M0.15%+36,835+4.3%Added
Wells Fargo & Company888,950$59.2M0.02%+41,818+4.9%Added
STRS Ohio907,347$60.4M0.22%−3,746−0.4%Reduced
Two Sigma Advisers, LP930,400$62.0M0.16%+930,400New
Raymond James & Associates945,710$63.0M0.05%+265,625+39.1%Added
Pictet Asset Management SA962,507$64.1M0.07%+11,226+1.2%Added
Alkeon Capital Management LLC983,459$65.5M0.29%−1,286,990−56.7%Reduced
Morgan Stanley1,018,818$67.9M0.01%−166,150−14.0%Reduced
FMR LLC1,034,017$68.9M0.01%−242,471−19.0%Reduced
Nuveen Asset Management, LLC1,104,516$71.3M0.02%+28,196+2.6%Added
Sumitomo Mitsui Trust Holdings, Inc.1,084,916$72.3M0.05%−3,869−0.4%Reduced
RGM Capital, LLC1,146,048$76.3M3.17%+1,146,048New
Kayne Anderson Rudnick Investment Management LLC1,148,206$76.5M0.20%−27,326−2.3%Reduced
Ensign Peak Advisors, Inc1,154,986$76.9M0.16%−523,698−31.2%Reduced
UBS Asset Management Americas Inc1,245,263$82.9M0.04%+25,740+2.1%Added
Envestnet Asset Management Inc1,288,616$85.8M0.04%+175,561+15.8%Added
Assenagon Asset Management S.A.1,321,807$88.0M0.29%+789,162+148.2%Added
Goldman Sachs Group Inc1,354,808$90.2M0.02%−41,351−3.0%Reduced
Charles Schwab Investment Management Inc1,364,928$90.9M0.03%+50,112+3.8%Added
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management1,443,100$96.1M4.26%+313,700+27.8%Added
Ci Investments Inc.1,475,507$98.3M0.36%+548,559+59.2%Added
Van Eck Associates Corp1,513,860$100.8M0.21%+1,513,860New
Capital International Investors1,529,695$101.9M0.02%+1,529,695New
William Blair Investment Management, LLC1,612,729$107.4M0.32%+369,276+29.7%Added
Swiss National Bank1,710,590$113.9M0.06%+209,400+13.9%Added
Granahan Investment Management Inc1,898,569$126.5M3.14%+608,380+47.2%Added
Neuberger Berman Group LLC1,962,057$130.8M0.11%+348,314+21.6%Added
Harding Loevner LP2,332,832$136.1M0.75%−149,525−6.0%Reduced
Bares Capital Management, Inc.2,122,026$141.3M3.29%−979,830−31.6%Reduced
Legal & General Group Plc2,200,912$146.6M0.04%+170,702+8.4%Added
Melvin Capital Management LP2,213,940$147.5M1.51%+2,073,940+1,481.4%Added
Bank of New York Mellon Corp2,338,458$155.8M0.03%+442,187+23.3%Added
Riverbridge Partners LLC2,720,834$181.2M2.05%+244,458+9.9%Added
Blair William & Co2,755,135$183.5M0.64%−40,211−1.4%Reduced
DF Dent & Co Inc2,766,268$184.3M2.12%+181,245+7.0%Added
American Century Companies Inc2,819,388$187.8M0.13%+1,915,752+212.0%Added
Champlain Investment Partners, LLC2,871,545$191.3M0.99%+706,650+32.6%Added
Mackenzie Financial Corp2,913,586$194.1M0.26%+2,257,140+343.8%Added
Northern Trust Corp2,935,172$195.5M0.03%−24,593−0.8%Reduced
Federated Hermes, Inc.2,944,533$196.1M0.44%+58,732+2.0%Added
Echo Street Capital Management LLC3,462,909$230.7M1.66%+1,755,773+102.8%Added
Wellington Management Group LLP3,477,341$231.6M0.04%+1,178,764+51.3%Added
Norges Bank3,611,608$240.6M0.05%−159,557−4.2%Reduced
Winslow Capital Management, LLC3,775,084$251.5M1.09%−763,908−16.8%Reduced
Bank of America Corp4,131,787$275.2M0.03%+592,665+16.7%Added
Ownership Capital B.V.4,866,071$324.1M4.28%+384,447+8.6%Added
Ameriprise Financial Inc5,111,667$340.4M0.10%+655,352+14.7%Added
Veritas Asset Management LLP5,181,970$345.2M2.11%+48,700+0.9%Added
Geode Capital Management, LLC5,402,658$359.3M0.04%+1,0340.0%Added
Findlay Park Partners LLP5,802,931$386.5M2.92%+236,936+4.3%Added
Select Equity Group, L.P.6,362,625$423.8M1.38%+4,271,849+204.3%Added
Vulcan Value Partners, LLC6,926,459$461.4M2.83%−153,948−2.2%Reduced
Macquarie Group Ltd8,249,228$549.5M0.50%+1,141,896+16.1%Added
State Street Corp8,268,349$550.8M0.03%−99,224−1.2%Reduced
Parnassus Investments8,318,337$554.1M1.12%+2,300,462+38.2%Added
Massachusetts Financial Services Co9,316,688$620.6M0.18%+425,352+4.8%Added
Franklin Resources Inc9,645,978$642.5M0.26%+44,380+0.5%Added
Akre Capital Management LLCSuperinvestorAkre Capital Management9,668,180$644.0M4.46%−96,170−1.0%Reduced
Sands Capital Management, LLC10,683,596$711.6M1.64%+403,931+3.9%Added
Baillie Gifford & Co13,412,947$893.4M0.63%−779,650−5.5%Reduced
Janus Henderson Group PLC14,920,642$993.9M0.48%+2,814,674+23.3%Added
Price T Rowe Associates Inc18,599,191$1.24B0.12%−9,054,023−32.7%Reduced
Principal Financial Group Inc18,742,336$1.25B0.79%+2,055,607+12.3%Added
Bamco Inc18,849,173$1.26B3.09%+350,382+1.9%Added
BlackRock Inc.20,615,252$1.37B0.04%−3,330,029−13.9%Reduced
Vanguard Group Inc34,757,886$2.32B0.05%+204,955+0.6%Added
IFP Advisors, Inc1,882––+895+90.7%Added
Jag Capital Management, LLC5,776––+5,776New
Third Point LLCSuperinvestorThird Point0$00.00%−5,687,819−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−1,307,031−100.0%Sold out
Cooper Investors Pty Ltd0$00.00%−585,811−100.0%Sold out
Capital World Investors0$00.00%−500,000−100.0%Sold out
HRT Financial LP0$00.00%−336,549−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−318,757−100.0%Sold out
Putnam Investments LLC0$00.00%−301,340−100.0%Sold out
Spence Asset Management0$00.00%−178,592−100.0%Sold out
American Assets Capital Advisers, LLC0$00.00%−164,456−100.0%Sold out
Capitolis Advisors LLC0$00.00%−150,515−100.0%Sold out
Loews Corp0$00.00%−120,000−100.0%Sold out