CSGP - Costar Group, Inc.

Insider Purchase by Florance Andrew C (Pres, CEO)

1 Month
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Trade Summary

6 days ago, Florance Andrew C, serving as Pres, CEO at Costar Group, Inc. (CSGP), purchased 55,720 shares at $44.52 per share, for a total transaction value of $2,480,654.00. Following this transaction, Florance Andrew C now holds 1,586,866 shares of CSGP.

This purchase represents a 4.00% increase in Florance Andrew C's stake in the company. This is considered a medium-conviction trade.

The trade was executed on Friday, February 27, 2026 and publicly disclosed via SEC Form 4 filing on Monday, March 2, 2026, 3 days after the trade was made.

Costar Group, Inc. operates in the REAL ESTATE sector, specifically within the REAL ESTATE SERVICES industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.

Florance Andrew C

Florance Andrew C

Pres, CEO

# Andrew C. Florance Andrew C. Florance (born 1963, age 61 as of recent records) is the founder, President, and Chief Executive Officer of CoStar Group, Inc. (NASDAQ: CSGP), a leading global provider of commercial and residential real estate information, analytics, online marketplaces, and digital twin technology.[[1]](https://fintool.com/app/research/companies/CSGP/people/andrew-c-florance)[[2]](https://www.clay.com/dossier/costar-ceo)[[4]](https://www.costargroup.com/leadership/andy-florance) He founded the company in 1986 (or 1987 per some sources) from his Princeton University dorm room, where he earned a B.A. in Economics, pioneering the digitization of the real estate industry by creating centralized databases and outsourcing research functions.[[1]](https://fintool.com/app/research/companies/CSGP/people/andrew-c-florance)[[2]](https://www.clay.com/dossier/costar-ceo)[[3]](https://www.highperformr.ai/people/andy-florance-ceo-costar-group)[[4]](https://www.costargroup.com/leadership/andy-florance)[[5]](https://homlyst.com/andy-florance/) Under Florance's leadership, CoStar Group achieved a successful IPO in 1998, joined the S&P 500, expanded to 15 countries through over 30 acquisitions (including LoopNet, Apartments.com, Homes.com, and STR), and now serves over one million clients with more than 6,800 employees worldwide.[[1]](https://fintool.com/app/research/companies/CSGP/people/andrew-c-florance)[[2]](https://www.clay.com/dossier/costar-ceo)[[3]](https://www.highperformr.ai/people/andy-florance-ceo-costar-group)[[4]](https://www.costargroup.com/leadership/andy-florance) He has received awards such as Ernst & Young Entrepreneur of the Year, Globee CEO of the Year, and recognition among the most powerful in real estate proptech; externally, he has served on boards including Washington National Cathedral (former Chair), American Real Estate Society, and Management Leadership for Tomorrow.[[1]](https://fintool.com/app/research/companies/CSGP/people/andrew-c-florance)[[2]](https://www.clay.com/dossier/costar-ceo)[[3]](https://www.highperformr.ai/people/andy-florance-ceo-costar-group)[[4]](https://www.costargroup.com/leadership/andy-florance)

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Trade Price

$44.52

Quantity

55,720

Total Value

$2,480,654.00

Shares Owned

1,586,866

Trade Date

Friday, February 27, 2026

6 days ago

SEC Filing Date

Monday, March 2, 2026

Filed 3 days after trade

REAL ESTATEREAL ESTATE SERVICES

About Costar Group, Inc.

Company Overview

No company information available
View news mentioning CSGP

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