SIMURO FRANK 4

What Happened Frank Simuro, Chief Technology Officer of CoStar Group (CSGP), had 30,727 shares disposed to the issuer (forfeited) and 4,421 shares withheld to cover tax liability. The withheld shares were valued at $49.07 each (closing price on 2026-02-19), totaling about $216,938. The 30,727-share disposition shows $0 proceeds, reflecting forfeiture rather than an open-market sale.

Key Details

• Transaction date: February 19, 2026; Form 4 filed February 23, 2026 (timely).
• Forfeiture: 30,727 shares disposed to issuer at $0.00 (footnote F1: shares forfeited from a Feb 14, 2023 performance restricted stock grant after certification of performance).
• Tax withholding: 4,421 shares withheld at $49.07 each = $216,938 (footnote F2: closing price on Feb 19, 2026).
• Shares owned after the transactions: not specified in the filing.
• Transaction codes: D = disposition to issuer (forfeiture); F = payment of exercise price or tax liability (share withholding).

Context These actions are administrative (forfeiture and tax withholding) rather than open-market sales or purchases and do not necessarily signal the insider’s view of the stock. The withholding (F) is effectively the company taking shares to satisfy tax obligations from an equity award; the forfeiture (D) reflects an adjustment to a prior performance award per the Compensation Committee’s certification.