CoStar Group, Inc. (CSGP) Insider Trading Activity
Trading
Quantity
Profitability
Ownership
Largest Insider Buys in Sector
| $10M | ||
| $10M | ||
| $5M | ||
| $4M | ||
| $3M | ||
| $3M |
CSGP Insider Trading Activity
CSGP Median Price and Trade Amounts History Chart
Statistics of Insider Transactions
Amount of Insider Buys and Sells
Buys | $1,099,966 | 1 | 10 |
Sells | $6,793,579 | 9 | 90 |
Related Transactions
| FLORANCE ANDREW C | President and CEO | 1 | $1.1M | 0 | $0 | $1.1M |
| NASSETTA CHRISTOPHER J | director | 0 | $0 | 1 | $135,136 | $-135,136 |
| SAINT FREDERICK G. | President, Marketplaces | 0 | $0 | 1 | $221,075 | $-221,075 |
| Hill John W | director | 0 | $0 | 2 | $313,501 | $-313,501 |
| Cann Cynthia Cammett | Chief Accounting Officer | 0 | $0 | 3 | $334,259 | $-334,259 |
| DESMARAIS MICHAEL J | Chief Human Resources Officer | 0 | $0 | 1 | $439,340 | $-439,340 |
| KLEIN MICHAEL R | director | 0 | $0 | 1 | $5.35M | $-5.35M |
About CoStar Group, Inc.
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. It offers CoStar Property that provides inventory of office, industrial, retail, multifamily, hospitality, and student housing properties and land; CoStar COMPS, 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. The company also provides Lease Comps and Analysis, 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. CoStar Group, Inc. was founded in 1987 and is headquartered in Washington, the District of Columbia.
Insider Activity of CoStar Group, Inc.
Over the last 12 months, insiders at CoStar Group, Inc. have bought $1.1M and sold $6.79M worth of CoStar Group, Inc. stock.
On average, over the past 5 years, insiders at CoStar Group, Inc. have bought $1.1M and sold $31.68M worth of stock each year.
Highest buying activity among insiders over the last 12 months: FLORANCE ANDREW C (President and CEO) — $1.1M.
The last purchase of 14,731 shares for transaction amount of $1.1M was made by FLORANCE ANDREW C (President and CEO) on 2024‑10‑25.
List of Insider Buy and Sell Transactions, CoStar Group, Inc.
| 2025-03-10 | Sale | Cann Cynthia Cammett | Chief Accounting Officer | 1,749 0.0004% | $79.90 | $139,745 | -1.66% | |
| 2024-12-10 | Sale | Hill John W | director | 2,735 0.0007% | $76.76 | $209,939 | -0.10% | |
| 2024-11-27 | Sale | NASSETTA CHRISTOPHER J | director | 1,681 0.0004% | $80.39 | $135,136 | -6.55% | |
| 2024-11-26 | Sale | DESMARAIS MICHAEL J | Chief Human Resources Officer | 5,500 0.0013% | $79.88 | $439,340 | -4.04% | |
| 2024-11-11 | Sale | Cann Cynthia Cammett | Chief Accounting Officer | 1,310 0.0003% | $76.85 | $100,674 | +0.86% | |
| 2024-10-25 | Sale | KLEIN MICHAEL R | director | 71,633 0.017% | $74.69 | $5.35M | +2.42% | |
| 2024-10-25 | FLORANCE ANDREW C | President and CEO | 14,731.03 0.0035% | $74.67 | $1.1M | +2.42% | ||
| 2024-07-31 | Sale | Cann Cynthia Cammett | Chief Accounting Officer | 1,200 0.0003% | $78.20 | $93,840 | -2.27% | |
| 2024-07-30 | Sale | Hill John W | director | 1,325 0.0003% | $78.16 | $103,562 | -2.83% | |
| 2024-05-16 | Sale | SAINT FREDERICK G. | President, Marketplaces | 2,500 0.0006% | $88.43 | $221,075 | -13.57% | |
| 2024-05-09 | Sale | Ruggles Lisa | Senior VP, Global Operations | 20,000 0.0049% | $91.15 | $1.82M | -16.48% | |
| 2024-04-26 | Sale | Wheeler Scott T | Chief Financial Officer | 122,736 0.0329% | $92.61 | $11.37M | -17.51% | |
| 2024-04-26 | Sale | DESMARAIS MICHAEL J | Chief Human Resources Officer | 3,800 0.001% | $92.67 | $352,146 | -17.51% | |
| 2023-11-28 | Sale | Hill John W | director | 3,020 0.0007% | $84.07 | $253,891 | -4.06% | |
| 2023-11-08 | Sale | NASSETTA CHRISTOPHER J | director | 1,500 0.0004% | $77.86 | $116,790 | +5.86% | |
| 2023-06-30 | Sale | Ruggles Lisa | Senior VP, Global Research | 30,474 0.0077% | $91.42 | $2.79M | -6.52% | |
| 2023-06-28 | Sale | Wheeler Scott T | Chief Financial Officer | 21,530 0.0053% | $89.30 | $1.92M | -6.78% | |
| 2023-06-27 | Sale | SIMURO FRANK | Chief Technology Officer | 92,300 0.0228% | $89.65 | $8.27M | -7.37% | |
| 2023-06-26 | Sale | Hill John W | director | 1,500 0.0004% | $86.57 | $129,855 | -5.08% | |
| 2023-06-12 | Sale | Wheeler Scott T | Chief Financial Officer | 24,670 0.0061% | $80.68 | $1.99M | +3.83% |
CSGP Institutional Investors: Active Positions
| Increased Positions | 495 | +53.98% | 44M | +11.02% |
| Decreased Positions | 408 | -44.49% | 36M | -9.1% |
| New Positions | 140 | New | 16M | New |
| Sold Out Positions | 102 | Sold Out | 9M | Sold Out |
| Total Postitions | 1,004 | +9.49% | 407M | +1.92% |
CSGP Ownership Change vs Market
Institutional Investor Ownership
| Vanguard Group Inc | $5.2M | 15.81% | 66.7M | -16,372 | -0.03% | 2024-12-31 |
| Blackrock, Inc. | $2.92M | 8.88% | 37.46M | -1M | -3.84% | 2025-03-31 |
| Bamco Inc /Ny/ | $1.5M | 4.55% | 19.2M | +418,128 | +2.23% | 2024-12-31 |
| Principal Financial Group Inc | $1.48M | 4.5% | 19.01M | -179,205 | -0.93% | 2025-03-31 |
| State Street Corp | $1.35M | 4.1% | 17.28M | -10,824 | -0.06% | 2024-12-31 |
| Capital International Investors | $1.09M | 3.33% | 14.03M | +4M | +44.86% | 2024-12-31 |
| Geode Capital Management, Llc | $912,839.00 | 2.78% | 11.71M | +167,993 | +1.46% | 2024-12-31 |
| Akre Capital Management Llc | $726,110.00 | 2.21% | 9.31M | +379,787 | +4.25% | 2024-12-31 |
| Baillie Gifford & Co | $616,788.00 | 1.88% | 7.91M | -887,533 | -10.09% | 2024-12-31 |
| Macquarie Group Ltd | $571,218.00 | 1.74% | 7.33M | -296,804 | -3.89% | 2024-12-31 |