MASTERSON WILLIAM F III

PrivateCIK: 2098902
Location

BOSTON, MA

InsiderMASTERSON WILLIAM F IIICIK 2098902
IssuerCABOT CORPCIK 16040
Officer· Senior Vice President
Since Mar 2026
+3.37
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
3.37 acquired
Non-Derivative Transactions0
No non-derivative transactions reported
Derivative Transactions1

Phantom Stock Units

Direct
A · Award
Converts to

Common Stock

3.37 shares

Shares

+3.37

Strike price

Held after

523.79

Exercisable

3/13/2026
MASTERSON WILLIAM F III — Insider Transaction (Form 4) Filed Mar 17, 2026 | Finecho