Insider Trading & Ownership of William T. Bosway

Location: Buffalo, NY
Summary: The estimated net worth of William T. Bosway is at least $15,297,515 dollars as of 10 Mar 2026. William T. Bosway is the President and CEO, Director of GIBRALTAR INDUSTRIES, INC. and owns shares of GIBRALTAR INDUSTRIES, INC. (ROCK) stock worth about $15.09M. William T. Bosway is the Director of STERLING INFRASTRUCTURE, INC. and owns shares of STERLING INFRASTRUCTURE, INC. (STRL) stock worth about $211.7K.
Signature: /s/ Jeffrey J. Watorek, Attorney-in-Fact for William T. Bosway
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Ownership of William T. Bosway

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
ROCK	GIBRALTAR INDUSTRIES, INC.	President and CEO, Director	$15,085,811	+$231,593	+1.6%	09 Mar 2026
STRL	STERLING INFRASTRUCTURE, INC.	Director	$211,704			08 May 2025

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.