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CSGP Insider Trading

Insider Ownership Percentage: 1.09%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $4,917,509.15

CoStar Group Insider Trading History Chart

This chart shows the insider buying and selling history at CoStar Group by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

CoStar Group Share Price & Price History

Current Price: $68.19
Price Change: ▼ Price Decrease of -0.83 (-1.20%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for CSGP up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

CoStar Group Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
8/28/2025Frederick G SaintInsiderSell25,000$90.33$2,258,250.00293,103View SEC Filing Icon  
7/28/2025Cynthia Cammett CannCAOSell2,033$92.85$188,764.0525,771View SEC Filing Icon  
7/28/2025Frederick G SaintInsiderSell25,000$93.23$2,330,750.00319,539View SEC Filing Icon  
3/10/2025Cynthia Cammett CannCAOSell1,749$79.90$139,745.1029,456View SEC Filing Icon  
11/26/2024Michael J. DesmaraisInsiderSell5,500$79.88$439,340.0058,798View SEC Filing Icon  
11/11/2024Cynthia Cammett CannCAOSell1,310$76.85$100,673.5026,485View SEC Filing Icon  
10/25/2024Andrew C. FloranceCEOBuy14,731$74.67$1,099,963.771,263,098View SEC Filing Icon  
10/25/2024Michael R. KleinDirectorSell71,633$74.69$5,350,268.771,913,501View SEC Filing Icon  
7/31/2024Cynthia Cammett CannCAOSell1,200$78.20$93,840.0027,795View SEC Filing Icon  
4/26/2024Michael J. DesmaraisInsiderSell3,800$92.67$352,146.0064,087View SEC Filing Icon  
4/26/2024Scott T WheelerCFOSell122,736$92.61$11,366,580.96303,417View SEC Filing Icon  
11/28/2023John W. HillDirectorSell3,020$84.07$253,891.4017,870View SEC Filing Icon  
6/30/2023Lisa RugglesVPSell30,474$91.42$2,785,933.08156,208View SEC Filing Icon  
6/28/2023Scott T WheelerCFOSell21,530$89.30$1,922,629.00324,714View SEC Filing Icon  
6/27/2023Frank SimuroCTOSell92,300$89.65$8,274,695.00264,483View SEC Filing Icon  
6/26/2023John W. HillDirectorSell1,500$86.57$129,855.0016,934View SEC Filing Icon  
6/12/2023Scott T WheelerCFOSell24,670$80.68$1,990,375.60346,244View SEC Filing Icon  
3/8/2023Michael J. DesmaraisInsiderSell5,600$70.36$394,016.0044,846View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for CoStar Group (NASDAQ:CSGP)

96.60% of CoStar Group stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at CSGP by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

CoStar Group Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
12/2/2025Allworth Financial LP3,745$0.32M0.0%+6.5%0.001%Search for SEC Filing on Google Icon
12/2/2025Swiss Life Asset Management Ltd39,782$3.36M0.0%+12.4%0.009%Search for SEC Filing on Google Icon
12/1/2025Groupama Asset Managment10,916$0.92M0.0%N/A0.003%Search for SEC Filing on Google Icon
11/24/2025CIBC Private Wealth Group LLC1,823,106$153.82M0.3%-0.7%0.430%Search for SEC Filing on Google Icon
11/22/2025Prana Capital Management LP166,491$14.05M0.5%+69.2%0.039%Search for SEC Filing on Google Icon
11/21/2025CIBC Bancorp USA Inc.185,242$15.63M0.1%N/A0.044%Search for SEC Filing on Google Icon
11/21/2025Oarsman Capital Inc.6,787$0.57M0.1%-12.6%0.002%Search for SEC Filing on Google Icon
11/20/2025Wilmington Savings Fund Society FSB842$71K0.0%-58.1%0.000%Search for SEC Filing on Google Icon
11/19/2025Captrust Financial Advisors28,250$2.38M0.0%-5.0%0.007%Search for SEC Filing on Google Icon
11/19/2025Coldstream Capital Management Inc.6,654$0.56M0.0%+18.3%0.002%Search for SEC Filing on Google Icon
11/19/2025Danske Bank A S203,100$17.14M0.0%N/A0.048%Search for SEC Filing on Google Icon
11/19/2025Caitong International Asset Management Co. Ltd515$43K0.0%+25,650.0%0.000%Search for SEC Filing on Google Icon
11/18/2025DigitalBridge Group Inc.7,300$0.62M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/17/2025Aureus Asset Management LLC339,077$28.61M1.9%+33.6%0.080%Search for SEC Filing on Google Icon
11/17/2025NewEdge Advisors LLC5,716$0.48M0.0%-7.3%0.001%Search for SEC Filing on Google Icon
11/17/2025First Foundation Advisors32,691$2.76M0.1%-20.7%0.008%Search for SEC Filing on Google Icon
11/17/2025CANADA LIFE ASSURANCE Co430,259$36.23M0.1%+5.0%0.102%Search for SEC Filing on Google Icon
11/17/2025Woodline Partners LP55,990$4.72M0.0%+22.7%0.013%Search for SEC Filing on Google Icon
11/17/2025Dark Forest Capital Management LP14,497$1.22M0.0%-36.0%0.003%Search for SEC Filing on Google Icon
11/17/2025Proficio Capital Partners LLC2,968$0.25M0.0%-34.5%0.001%Search for SEC Filing on Google Icon
11/17/2025XTX Topco Ltd19,411$1.64M0.1%-42.3%0.005%Search for SEC Filing on Google Icon
11/17/2025United Capital Financial Advisors LLC7,545$0.64M0.0%+2.3%0.002%Search for SEC Filing on Google Icon
11/17/2025Utah Retirement Systems68,915$5.81M0.1%+0.6%0.016%Search for SEC Filing on Google Icon
11/17/2025Voleon Capital Management LP4,866$0.41M0.0%+49.8%0.001%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC29,933$2.53M0.0%-33.3%0.007%Search for SEC Filing on Google Icon
11/17/2025State Street Corp18,284,128$1.54B0.1%+3.1%4.314%Search for SEC Filing on Google Icon
11/17/2025Susquehanna Fundamental Investments LLC28,201$2.38M0.1%-11.2%0.007%Search for SEC Filing on Google Icon
11/17/2025Politan Capital Management LP27,635$2.33M0.2%+11.0%0.007%Search for SEC Filing on Google Icon
11/17/2025Quarry LP1,269$0.11M0.0%+221.3%0.000%Search for SEC Filing on Google Icon
11/17/2025Public Employees Retirement System of Ohio207,780$17.53M0.1%+1.4%0.049%Search for SEC Filing on Google Icon
11/17/2025Nomura Holdings Inc.11,250$0.95M0.0%+133.2%0.003%Search for SEC Filing on Google Icon
11/17/2025Northwestern Mutual Wealth Management Co.55,234$4.66M0.0%-38.3%0.013%Search for SEC Filing on Google Icon
11/17/2025Northern Trust Corp3,752,394$316.59M0.0%-2.9%0.885%Search for SEC Filing on Google Icon
11/17/2025Night Owl Capital Management LLC107,711$9.09M1.0%+0.8%0.025%Search for SEC Filing on Google Icon
11/17/2025Norinchukin Bank The35,539$3M0.0%+0.5%0.008%Search for SEC Filing on Google Icon
11/17/2025Mariner LLC55,569$4.69M0.0%+15.3%0.013%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV32,529$2.74M0.0%+73.0%0.008%Search for SEC Filing on Google Icon
11/17/2025National Bank of Canada FI202,856$17.12M0.0%-51.2%0.048%Search for SEC Filing on Google Icon
11/17/2025Mirabella Financial Services LLP16,340$1.38M0.0%+158.0%0.004%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.310,993$26.24M0.0%-7.9%0.073%Search for SEC Filing on Google Icon
11/17/2025Laird Norton Wetherby Wealth Management LLC4,318$0.36M0.0%+6.5%0.001%Search for SEC Filing on Google Icon
11/17/2025Larson Financial Group LLC1,309$0.11M0.0%-29.0%0.000%Search for SEC Filing on Google Icon
11/17/2025Lido Advisors LLC27,536$2.32M0.0%+30.2%0.006%Search for SEC Filing on Google Icon
11/17/2025Integrated Wealth Concepts LLC4,616$0.39M0.0%-25.2%0.001%Search for SEC Filing on Google Icon
11/17/2025Ion Asset Management Ltd.534,000$45.05M4.9%-54.4%0.126%Search for SEC Filing on Google Icon
11/17/2025JPL Wealth Management LLC569$48K0.0%N/A0.000%Search for SEC Filing on Google Icon
11/17/2025Kids Capital Management L.P.40,000$3.38M2.6%N/A0.009%Search for SEC Filing on Google Icon
11/17/2025Hilltop Holdings Inc.6,684$0.56M0.0%+12.8%0.002%Search for SEC Filing on Google Icon
11/17/2025Gotham Asset Management LLC22,651$1.91M0.0%+385.8%0.005%Search for SEC Filing on Google Icon
11/17/2025Granahan Investment Management LLC270,166$22.79M0.9%-10.2%0.064%Search for SEC Filing on Google Icon
11/17/2025Fayez Sarofim & Co2,174,799$183.49M0.4%+0.8%0.513%Search for SEC Filing on Google Icon
11/17/2025Fred Alger Management LLC177,032$14.94M0.1%+20.7%0.042%Search for SEC Filing on Google Icon
11/17/2025Focus Partners Wealth997,953$84.21M0.1%+0.7%0.235%Search for SEC Filing on Google Icon
11/17/2025DoubleLine ETF Adviser LP26,395$2.23M0.7%+6.2%0.006%Search for SEC Filing on Google Icon
11/17/2025Elevation Point Wealth Partners LLC4,765$0.40M0.0%+966.0%0.001%Search for SEC Filing on Google Icon
11/17/2025EagleClaw Capital Managment LLC33,850$2.86M0.4%+136.7%0.008%Search for SEC Filing on Google Icon
11/17/2025Chevy Chase Trust Holdings LLC218,972$18.48M0.1%-1.8%0.052%Search for SEC Filing on Google Icon
11/17/2025Azimuth Capital Investment Management LLC102,493$8.65M0.3%-1.7%0.024%Search for SEC Filing on Google Icon
11/17/2025Bamco Inc. NY19,255,566$1.62B4.3%-2.2%4.543%Search for SEC Filing on Google Icon
11/17/2025Banco Bilbao Vizcaya Argentaria S.A.13,417$1.13M0.0%+43.0%0.003%Search for SEC Filing on Google Icon
11/17/2025Caden Capital Partners LP349,501$29.49M11.9%-7.9%0.082%Search for SEC Filing on Google Icon
11/17/2025California Public Employees Retirement System730,562$61.64M0.0%+6.4%0.172%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE3,696,857$311.90M0.0%-27.9%0.872%Search for SEC Filing on Google Icon
11/17/2025Bank of Nova Scotia59,959$5.06M0.0%+52.9%0.014%Search for SEC Filing on Google Icon
11/17/2025Beck Mack & Oliver LLC1,723,432$145.41M2.6%-0.2%0.407%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC3,166$0.27M0.0%+13.6%0.001%Search for SEC Filing on Google Icon
11/17/2025Arkos Global Advisors2,467$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
11/17/2025ArrowMark Colorado Holdings LLC2,375$0.20M0.0%-24.4%0.001%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.464,823$39.22M0.0%+0.9%0.110%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.1,222,534$103.15M0.0%+13.4%0.288%Search for SEC Filing on Google Icon
11/14/2025No Street GP LP450,000$37.97M2.5%+4.7%0.106%Search for SEC Filing on Google Icon
11/14/2025Ashford Capital Management Inc.280,738$23.69M2.6%-3.6%0.066%Search for SEC Filing on Google Icon
11/14/2025Viking Global Investors LP1,849,729$156.06M0.4%-42.5%0.436%Search for SEC Filing on Google Icon
11/14/2025Creative Planning50,424$4.25M0.0%+23.7%0.012%Search for SEC Filing on Google Icon
11/14/2025Credit Agricole S A138,372$11.67M0.0%N/A0.033%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.769,369$64.91M0.0%+16.2%0.182%Search for SEC Filing on Google Icon
11/14/2025Virtu Financial LLC6,526$0.55M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/14/2025Amundi3,135,136$254.42M0.1%-2.0%0.740%Search for SEC Filing on Google Icon
11/14/2025Caisse de depot et placement du Quebec37,577$3.17M0.0%N/A0.009%Search for SEC Filing on Google Icon
11/14/2025Visualize Group LP428,838$36.18M12.1%+443.1%0.101%Search for SEC Filing on Google Icon
11/14/2025American Capital Management Inc.793,664$66.96M2.7%-0.3%0.187%Search for SEC Filing on Google Icon
11/14/2025Freestone Grove Partners LP44,063$3.72M0.0%-75.8%0.010%Search for SEC Filing on Google Icon
11/14/2025ThornTree Capital Partners LP510,201$43.05M6.6%-0.4%0.120%Search for SEC Filing on Google Icon
11/14/2025Man Group plc119,259$10.06M0.0%+1,050.3%0.028%Search for SEC Filing on Google Icon
11/14/2025Landmark Investment Partners L.P.149,385$12.60M3.8%-48.6%0.035%Search for SEC Filing on Google Icon
11/14/2025California State Teachers Retirement System696,243$58.74M0.1%-0.3%0.164%Search for SEC Filing on Google Icon
11/14/2025Daiwa Securities Group Inc.114,352$9.65M0.0%+7.7%0.027%Search for SEC Filing on Google Icon
11/14/2025Horizon Investments LLC13,832$1.17M0.0%+11.7%0.003%Search for SEC Filing on Google Icon
11/14/2025Zurcher Kantonalbank Zurich Cantonalbank 170,973$14.43M0.0%+3.1%0.040%Search for SEC Filing on Google Icon
11/14/2025DF Dent & Co. Inc.2,177,724$183.74M2.4%-4.1%0.514%Search for SEC Filing on Google Icon
11/14/2025Scotia Capital Inc.32,121$2.71M0.0%+2.2%0.008%Search for SEC Filing on Google Icon
11/14/2025Brooklyn Investment Group8,264$0.70M0.0%+120.1%0.002%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC2,459,610$207.52M0.0%-17.5%0.580%Search for SEC Filing on Google Icon
11/14/2025Tower Research Capital LLC TRC 18,357$1.55M0.0%-18.2%0.004%Search for SEC Filing on Google Icon
11/14/2025Vident Advisory LLC13,289$1.12M0.0%+15.6%0.003%Search for SEC Filing on Google Icon
11/14/2025Ossiam175,818$14.83M0.2%+268.8%0.041%Search for SEC Filing on Google Icon
11/14/2025Thematics Asset Management79,915$6.74M0.3%-12.0%0.019%Search for SEC Filing on Google Icon
11/14/2025Spyglass Capital Management LLC1,002,717$84.60M4.5%+24.8%0.237%Search for SEC Filing on Google Icon
11/14/2025Archon Partners LLC54,000$4.56M0.5%N/A0.013%Search for SEC Filing on Google Icon
11/14/2025Tremblant Capital Group225,928$19.06M2.0%+13.0%0.053%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
CoStar Group logo
CoStar Group, Inc. provides information, analytics, and online marketplace services to the commercial real estate, hospitality, residential, and related professionals industries in the United States, Canada, Europe, the Asia Pacific, and Latin America. The company offers CoStar Property that provides inventory of office, industrial, retail, multifamily, hospitality, and student housing properties and land; CoStar Sales, a robust database of comparable commercial real estate sales transactions; CoStar Market Analytics to view and report on aggregated market and submarket trends; and CoStar Tenant, an online business-to-business prospecting and analytical tool that provides tenant information. It also provides Leasing, a tool to capture, manage, and maintain lease data; CoStar Lease Analysis; Public Record, a searchable database of commercially zoned parcels; CoStar Real Estate Manager, a real estate lease administration, portfolio management, and lease accounting compliance software solution; and CoStar Risk Analytics and CoStar Investment. In addition, it offers apartment marketing sites, such as ApartmentFinder.com, ForRent.com, ApartmentHomeLiving.com, WestsideRentals.com, AFTER55.com, CorporateHousing.com, ForRentUniversity.com, Apartamentos.com, and Off Campus Partners; LoopNet Premium Lister; LoopNet Diamond, Platinum, and Gold Ads; LandsofAmerica.com, LandAndFarm.com, and LandWatch.com for rural land for-sale; BizBuySell.com, BizQuest.com, and FindaFranchise.com for operating businesses and franchises for-sale; Ten-X, an online auction platform for commercial real estate; and HomeSnap, an online and mobile software platform, as well as Homes.com, a homes for sale listings site. The company was founded in 1987 and is headquartered in Washington, the District of Columbia.
Read More on CoStar Group

Today's Range

Now: $68.19
Low: $68.08
High: $69.06

50 Day Range

MA: $73.12
Low: $65.52
High: $84.80

52 Week Range

Now: $68.19
Low: $63.82
High: $97.43

Volume

2,329,184 shs

Average Volume

4,010,434 shs

Market Capitalization

$28.90 billion

P/E Ratio

1,363.80

Dividend Yield

N/A

Beta

0.84

Who are the company insiders with the largest holdings of CoStar Group?

CoStar Group's top insider investors include:
  1. Michael R Klein (Director)
  2. Andrew C Florance (CEO)
  3. Frederick G Saint (Insider)
  4. Scott T Wheeler (CFO)
  5. Michael J Desmarais (Insider)
  6. Cynthia Cammett Cann (CAO)
Learn More about top insider investors at CoStar Group.

Who are the major institutional investors of CoStar Group?

CoStar Group's top institutional investors include:
  1. Vanguard Group Inc. — 16.53%
  2. Bamco Inc. NY — 4.54%
  3. Principal Financial Group Inc. — 4.39%
  4. State Street Corp — 4.31%
  5. Akre Capital Management LLC — 2.20%
  6. Baillie Gifford & Co. — 1.95%
Learn More about top institutional investors of CoStar Group stock.

Which institutional investors are selling CoStar Group stock?

Within the last quarter, CSGP stock was sold by these institutional investors:
  1. Capital International Investors
  2. Bank of America Corp DE
  3. Viking Global Investors LP
  4. SG Capital Management LLC
  5. Mizuho Markets Americas LLC
  6. Ion Asset Management Ltd.
  7. BNP Paribas Financial Markets
  8. UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
Within the last year, company insiders that have sold CoStar Group company stock include:
  1. Michael R Klein (Director)
  2. Andrew C Florance (CEO)
Learn More investors selling CoStar Group stock.

Which institutional investors are buying CoStar Group stock?

During the last quarter, CSGP stock was bought by institutional investors including:
  1. Vanguard Group Inc.
  2. Capital Research Global Investors
  3. Massachusetts Financial Services Co. MA
  4. Voya Investment Management LLC
  5. State Street Corp
  6. Marshall Wace LLP
  7. American Century Companies Inc.
  8. Jupiter Asset Management Ltd.