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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: $44.99
Price Change: ▼ Price Decrease of -0.04 (-0.09%)
As of 02/13/2026 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
2/13/2026Kestra Advisory Services LLC14,355$0.97M0.0%-24.2%0.003%Search for SEC Filing on Google Icon
2/13/2026Volterra Technologies LP11,925$0.80M0.1%N/A0.003%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP391,305$26.31M0.0%-38.5%0.092%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 252,217$16.96M0.0%-1.1%0.060%Search for SEC Filing on Google Icon
2/13/2026CANADA LIFE ASSURANCE Co236,960$15.94M0.0%-44.9%0.056%Search for SEC Filing on Google Icon
2/13/2026Pin Oak Investment Advisors Inc.1,033$69K0.1%+117.0%0.000%Search for SEC Filing on Google Icon
2/13/2026Bridgewater Associates LP9,020$0.61M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/13/2026Night Owl Capital Management LLC108,615$7.30M0.8%+0.8%0.026%Search for SEC Filing on Google Icon
2/13/2026UMB Bank n.a.224,611$15.10M0.2%-0.3%0.053%Search for SEC Filing on Google Icon
2/13/2026Fayez Sarofim & Co2,241,437$150.71M0.4%+3.1%0.529%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp241,718$16.25M0.0%-10.7%0.057%Search for SEC Filing on Google Icon
2/13/2026PCM Encore LLC3,990$0.27M0.1%N/A0.001%Search for SEC Filing on Google Icon
2/13/2026Quarry LP941$63K0.0%-25.8%0.000%Search for SEC Filing on Google Icon
2/13/2026Commerce Bank18,869$1.27M0.0%+3.6%0.004%Search for SEC Filing on Google Icon
2/13/2026Smartleaf Asset Management LLC6,840$0.46M0.0%-25.0%0.002%Search for SEC Filing on Google Icon
2/13/2026Bridgefront Capital LLC6,321$0.43M0.1%+60.6%0.001%Search for SEC Filing on Google Icon
2/13/2026Bank of Nova Scotia81,035$5.45M0.0%+35.2%0.019%Search for SEC Filing on Google Icon
2/13/2026Morgan Stanley5,291,136$355.78M0.0%-38.1%1.248%Search for SEC Filing on Google Icon
2/13/2026Schroder Investment Management Group33,183$2.23M0.0%-13.1%0.008%Search for SEC Filing on Google Icon
2/13/2026Public Sector Pension Investment Board107,909$7.26M0.0%+18.1%0.025%Search for SEC Filing on Google Icon
2/13/2026AXA S.A.10,812$0.73M0.3%N/A0.003%Search for SEC Filing on Google Icon
2/13/2026Rafferty Asset Management LLC242,845$16.33M0.1%+22.9%0.057%Search for SEC Filing on Google Icon
2/13/2026First Trust Advisors LP703,358$47.29M0.0%+4.2%0.166%Search for SEC Filing on Google Icon
2/13/2026Integrated Wealth Concepts LLC3,609$0.24M0.0%-21.8%0.001%Search for SEC Filing on Google Icon
2/13/2026Itau Unibanco Holding S.A.87,687$5.90M0.1%+4.1%0.021%Search for SEC Filing on Google Icon
2/13/2026Golden State Wealth Management LLC4,173$0.28M0.0%+15.1%0.001%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.2,663,099$179.07M0.0%+0.2%0.628%Search for SEC Filing on Google Icon
2/13/2026Police & Firemen s Retirement System of New Jersey63,857$4.29M0.0%-5.0%0.015%Search for SEC Filing on Google Icon
2/13/2026Van ECK Associates Corp56,524$3.80M0.0%-2.3%0.013%Search for SEC Filing on Google Icon
2/13/2026State Street Corp18,632,352$1.25B0.0%+1.9%4.396%Search for SEC Filing on Google Icon
2/13/2026Royal London Asset Management Ltd.409,563$27.54M0.1%+0.6%0.097%Search for SEC Filing on Google Icon
2/13/2026Ironvine Capital Partners LLC371,224$24.96M2.5%-13.7%0.088%Search for SEC Filing on Google Icon
2/13/2026Victory Capital Management Inc.334,993$22.53M0.0%+2.3%0.079%Search for SEC Filing on Google Icon
2/13/2026Ieq Capital LLC14,570$0.98M0.0%-30.6%0.003%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC2,432,817$163.58M0.0%-1.1%0.574%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN880,972$59.24M0.0%-22.5%0.208%Search for SEC Filing on Google Icon
2/13/2026Korea Investment CORP205,123$13.79M0.0%-16.3%0.048%Search for SEC Filing on Google Icon
2/13/2026Platinum Investment Management Ltd.65,000$4.37M1.0%+18.2%0.015%Search for SEC Filing on Google Icon
2/13/2026Macquarie Group Ltd.69,698$4.69M0.0%-98.4%0.016%Search for SEC Filing on Google Icon
2/13/2026Quantum Capital Management LLC NJ218,583$14.70M1.7%-45.7%0.052%Search for SEC Filing on Google Icon
2/12/2026CI Investments Inc.343,534$23.10M0.1%-49.5%0.081%Search for SEC Filing on Google Icon
2/12/2026Johnson Financial Group Inc.720$48K0.0%-50.7%0.000%Search for SEC Filing on Google Icon
2/12/2026DigitalBridge Group Inc.11,700$0.79M0.1%+60.3%0.003%Search for SEC Filing on Google Icon
2/12/2026Beck Mack & Oliver LLC2,224,889$149.60M2.7%+29.1%0.525%Search for SEC Filing on Google Icon
2/12/2026Empirical Finance LLC8,225$0.55M0.0%-3.6%0.002%Search for SEC Filing on Google Icon
2/12/2026Federation des caisses Desjardins du Quebec14,942$1.01M0.0%-47.8%0.004%Search for SEC Filing on Google Icon
2/12/2026DRW Securities LLC5,672$0.38M0.0%-55.9%0.001%Search for SEC Filing on Google Icon
2/12/2026Orion Porfolio Solutions LLC24,721$1.66M0.0%-27.1%0.006%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC103,990$6.99M0.0%-3.2%0.025%Search for SEC Filing on Google Icon
2/12/2026Cibc World Markets Corp186,141$12.52M0.1%N/A0.044%Search for SEC Filing on Google Icon
2/12/2026Pembroke Management LTD5,874$0.40M0.0%+12.9%0.001%Search for SEC Filing on Google Icon
2/12/2026Commonwealth Equity Services LLC13,723$0.92M0.0%-35.8%0.003%Search for SEC Filing on Google Icon
2/12/2026State Board of Administration of Florida Retirement System376,003$25.28M0.0%-3.9%0.089%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP2,319,754$156M0.0%+3.7%0.547%Search for SEC Filing on Google Icon
2/12/2026EntryPoint Capital LLC5,439$0.37M0.1%N/A0.001%Search for SEC Filing on Google Icon
2/12/2026California Public Employees Retirement System731,971$49.22M0.0%+0.2%0.173%Search for SEC Filing on Google Icon
2/12/2026Federated Hermes Inc.1,322,999$88.96M0.1%-9.6%0.312%Search for SEC Filing on Google Icon
2/12/2026Ensign Peak Advisors Inc578,356$38.89M0.1%-17.1%0.136%Search for SEC Filing on Google Icon
2/12/2026Elevation Point Wealth Partners LLC4,181$0.28M0.0%-12.3%0.001%Search for SEC Filing on Google Icon
2/12/2026Lansforsakringar Fondforvaltning AB publ 136,026$9.15M0.0%+0.9%0.032%Search for SEC Filing on Google Icon
2/12/2026Steward Partners Investment Advisory LLC3,103$0.21M0.0%-47.2%0.001%Search for SEC Filing on Google Icon
2/12/2026Azimuth Capital Investment Management LLC94,063$6.33M0.2%-8.2%0.022%Search for SEC Filing on Google Icon
2/12/2026Skandinaviska Enskilda Banken AB publ 81,263$5.46M0.0%-2.1%0.019%Search for SEC Filing on Google Icon
2/12/2026NZS Capital LLC441,362$29.68M0.9%+18.2%0.104%Search for SEC Filing on Google Icon
2/12/2026CIBC Private Wealth Group LLC1,361,651$91.56M0.2%-25.3%0.321%Search for SEC Filing on Google Icon
2/12/2026Wedbush Securities Inc.5,905$0.40M0.0%+10.9%0.001%Search for SEC Filing on Google Icon
2/12/2026Geneva Capital Management LLC450,799$30.31M0.6%+3.4%0.106%Search for SEC Filing on Google Icon
2/12/2026Bank of Montreal Can453,968$30.53M0.0%-3.3%0.107%Search for SEC Filing on Google Icon
2/12/2026Loomis Sayles & Co. L P3,515$0.24M0.0%+202.2%0.001%Search for SEC Filing on Google Icon
2/12/2026Elo Mutual Pension Insurance Co16,684$1.12M0.0%-71.8%0.004%Search for SEC Filing on Google Icon
2/12/2026Brown Brothers Harriman & Co.1,048$70K0.0%-42.2%0.000%Search for SEC Filing on Google Icon
2/12/2026Alps Advisors Inc.22,955$1.54M0.0%+10.6%0.005%Search for SEC Filing on Google Icon
2/12/2026Swiss National Bank1,160,965$78.06M0.0%-4.5%0.274%Search for SEC Filing on Google Icon
2/12/2026Principal Securities Inc.28,274$1.90M0.0%-11.0%0.007%Search for SEC Filing on Google Icon
2/12/2026Aviva PLC282,218$18.98M0.0%+5.2%0.067%Search for SEC Filing on Google Icon
2/12/2026ICICI Prudential Asset Management Co Ltd6,801$0.46M0.1%+4.5%0.002%Search for SEC Filing on Google Icon
2/12/2026Polen Capital Management LLC4,890,936$328.87M1.4%-23.4%1.154%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC3,560,896$239.44M0.1%+1.5%0.840%Search for SEC Filing on Google Icon
2/12/2026Xponance LLC67,203$4.52M0.0%+6.2%0.016%Search for SEC Filing on Google Icon
2/12/2026UniSuper Management Pty Ltd46,644$3.14M0.0%+4.5%0.011%Search for SEC Filing on Google Icon
2/12/2026Parnassus Investments LLC272,688$18.34M0.0%-57.2%0.064%Search for SEC Filing on Google Icon
2/12/2026IFM Investors Pty Ltd82,958$5.58M0.0%+3.1%0.020%Search for SEC Filing on Google Icon
2/11/2026Primecap Management Co. CA151,000$10.15M0.0%+54.1%0.036%Search for SEC Filing on Google Icon
2/11/2026Empowered Funds LLC9,541$0.64M0.0%-30.8%0.002%Search for SEC Filing on Google Icon
2/11/2026Inceptionr LLC9,598$0.65M0.2%N/A0.002%Search for SEC Filing on Google Icon
2/11/2026Zions Bancorporation National Association UT2,076$0.14M0.0%+268.7%0.000%Search for SEC Filing on Google Icon
2/11/2026Janney Montgomery Scott LLC39,121$2.63M0.0%-21.9%0.009%Search for SEC Filing on Google Icon
2/11/2026Metis Global Partners LLC13,457$0.91M0.0%-5.9%0.003%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG1,775,803$119.41M0.0%+38.4%0.419%Search for SEC Filing on Google Icon
2/11/2026Motley Fool Wealth Management LLC203,448$13.68M1.1%-20.5%0.048%Search for SEC Filing on Google Icon
2/11/2026Motley Fool Asset Management LLC40,343$2.71M0.1%-52.0%0.010%Search for SEC Filing on Google Icon
2/11/2026Westerkirk Capital Inc.12,600$0.85M0.1%+7.7%0.003%Search for SEC Filing on Google Icon
2/11/2026Marks Group Wealth Management Inc6,187$0.42M0.0%+17.8%0.001%Search for SEC Filing on Google Icon
2/11/2026Cerity Partners LLC91,547$6.16M0.0%+42.0%0.022%Search for SEC Filing on Google Icon
2/11/2026LPL Financial LLC117,448$7.90M0.0%-21.3%0.028%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.1,162,422$78.16M0.0%-68.9%0.274%Search for SEC Filing on Google Icon
2/11/2026Erste Asset Management GmbH320,000$21.52M0.2%+60.0%0.076%Search for SEC Filing on Google Icon
2/11/2026O Shaughnessy Asset Management LLC39,802$2.68M0.0%-36.5%0.009%Search for SEC Filing on Google Icon
2/11/2026Fiera Capital Corp350,930$23.60M0.1%+49.8%0.083%Search for SEC Filing on Google Icon
2/11/2026JPMorgan Chase & Co.772,040$51.91M0.0%-59.7%0.182%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: $44.99
Low: $44.55
High: $45.90

50 Day Range

MA: $62.22
Low: $44.99
High: $68.23

52 Week Range

Now: $44.99
Low: $43.92
High: $97.43

Volume

5,525,664 shs

Average Volume

7,141,053 shs

Market Capitalization

$19.07 billion

P/E Ratio

899.80

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. — 16.54%
  2. State Street Corp — 4.40%
  3. Principal Financial Group Inc. — 4.14%
  4. Baillie Gifford & Co. — 3.05%
  5. Geode Capital Management LLC — 2.87%
  6. Capital International Investors — 2.56%
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. Massachusetts Financial Services Co. MA
  2. Macquarie Group Ltd.
  3. Morgan Stanley
  4. Franklin Resources Inc.
  5. Polen Capital Management LLC
  6. JPMorgan Chase & Co.
  7. Principal Financial Group Inc.
  8. Mizuho Markets 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. Norges Bank
  2. Baillie Gifford & Co.
  3. Capital International Investors
  4. Goldman Sachs Group Inc.
  5. Jupiter Asset Management Ltd.
  6. Vulcan Value Partners LLC
  7. Capital Research Global Investors
  8. Beck Mack & Oliver LLC