Info
Insider Ownership

Insider Trading & Ownership of COREY A. CHAMBAS

Location: Madison, WI
Summary: The estimated net worth of COREY A. CHAMBAS is at least $7,762,588 dollars as of 18 Feb 2026. COREY A. CHAMBAS is the CEO, Director of FIRST BUSINESS FINANCIAL SERVICES, INC. and owns shares of FIRST BUSINESS FINANCIAL SERVICES, INC. (FBIZ) stock worth about $7.76M.
Signature: Peter J. Wilder (Pursuant to Power of Attorney filed previously)
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Ownership of COREY A. CHAMBAS

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
FBIZ	FIRST BUSINESS FINANCIAL SERVICES, INC.	CEO, Director	$7,762,588			16 Feb 2026

Insider Transactions Reported by COREY A. CHAMBAS:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.