W.R. Grace & Co.の内部者の所有権は0.55%です。
管理の所有権(Insider Ownership)は、発行済株式総数で除したインサイダー（5％超を所有する株主または取締役または役員) が所有する株式総数によって計算されます。
A high value of insider ownership means that those working for the company have a large stake in the success of the company. This is sometimes seen as a sign that those running the company will work hard to ensure its success or believe the company's stock price will rise.
A change in insider ownership may come from exercise of option, stock grant and buying or selling of company shares. A purchase of company share signifies a confidence in the company's future performance by people who know the company best. Therefore, Net Insider buying is also an important indicator for investors.
Built on talent, technology, and trust, Grace is a leading global specialty chemical company. The company's two industry-leading business segments-Catalysts Technologies and Materials Technologies-provide innovative products, technologies, and services that enhance the products and processes of its customers around the world. With approximately 4,000 employees, Grace operates and/or sells to customers in over 60 countries.