Shares of CoStar Group Inc (NASDAQ:CSGP) rose 2.5% on Wednesday after several senior executives revealed open-market purchases of the company’s stock.
Chief Executive Officer Andy Florance, Director Rachel Glaser and President of Marketplaces Fred Saint all reported buying shares this week, moves that market participants read as a show of confidence from the company’s leadership during a contentious period for the business.
The activity follows a sharp drop in the stock, which hit a 52-week low of $43.16 just yesterday. Year-to-date CoStar shares are down roughly 27% - a slide the company and market observers attribute primarily to missed earnings expectations and CoStar’s high-profile expansion into the residential real estate market via its Homes.com platform.
Two prominent activist hedge funds, Third Point and D.E. Shaw, have publicly demanded that CoStar reverse course on the residential push, calling for an immediate retreat from that segment. In a forceful letter dated February 4, D.E. Shaw wrote: "Every shareholder who has purchased CoStar’s stock in the last five years has lost money." The fund estimated that the company’s focus on Homes.com has eliminated as much as $11 billion in potential market capitalization.
CoStar’s management has defended the strategic choice. CEO Andy Florance has consistently described the company’s residential moves as part of a broader evolution of its digital ecosystem. In a board-level response to activists and other critics, the company disclosed a $1.5 billion share repurchase program and pledged to reduce Homes.com spending by $300 million in 2026.
CoStar’s official statement pushed back on activist characterizations, saying: "Third Point appears intent on spinning a yarn of Board complacency and ’quixotic’ investment," and reiterated management’s belief in a "proven playbook" that will ultimately produce breakeven profitability for the platform by 2030.
The recent insider purchases appear intended to address criticism that management has not been financially aligned with ordinary shareholders. Florance’s reported purchase of 55,720 shares and Saint’s 20,000-share buy represent a notable change in insider behavior after years characterized by net selling among company insiders. The disclosure by Director Rachel Glaser confirms additional insider buying this week, though no quantity for her purchase was provided in the filings referenced.
Financial guidance for the full year 2026 remains optimistic. CoStar is projecting revenue in a range from $3.78 billion to $3.82 billion, which it says would equate to roughly 17% growth year-over-year. Management also expects adjusted EBITDA to climb to record levels, targeting up to $800 million as the firm moves into a phase of margin expansion.
Even as management expresses confidence, market sentiment includes concerns about technological disruption. Some analysts have advanced an "AI victim" narrative, warning that generative AI search tools could erode CoStar’s proprietary data advantage. That risk, coupled with the activism and recent stock decline, sets the stage for the company’s 2026 Annual Meeting, an event many investors view as a possible referendum on Florance’s long-term strategy for CoStar and its role in the real estate industry.