MASTERSON WILLIAM F III

PrivateCIK: 2098902
Location

BOSTON, MA

InsiderMASTERSON WILLIAM F IIICIK 2098902
IssuerCABOT CORPCIK 16040
Officer· Senior Vice President
Since Mar 2026
+2.82
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
2.82 acquired
Non-Derivative Transactions0
No non-derivative transactions reported
Derivative Transactions1

Phantom Stock Units

Direct
A · Award
Converts to

Common Stock

2.82 shares

Shares

+2.82

Strike price

Held after

526.62

Exercisable

6/12/2026
MASTERSON WILLIAM F III — Insider Transaction (Form 4) Filed Jun 16, 2026 | Finecho