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  • Insider Ownership

Insider Trading & Ownership of William C. Kirby

Location
Lexington, MA
Summary
The estimated net worth of William C. Kirby is at least $1,835,163 dollars as of 12 Jan 2026. William C. Kirby is the Director of CABOT CORP and owns shares of CABOT CORP (CBT) stock worth about $1.84M.
Signature
By: Jennifer Lombardi, pursuant to a power of attorney from William C. Kirby
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Ownership of William C. Kirby

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
CBT CABOT CORP Director $1,835,163 08 Jan 2026

Insider Transactions Reported by William C. Kirby:

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.