MASTERSON WILLIAM F III

PrivateCIK: 2098902
Location

BOSTON, MA

InsiderMASTERSON WILLIAM F IIICIK 2098902
→
IssuerCABOT CORPCIK 16040
Officer· Senior Vice President
Since Mar 2026
+24.15
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
24.15 acquired
Non-Derivative Transactions0
No non-derivative transactions reported
Derivative Transactions1

Phantom Stock Units

Direct
A · Award
Converts to

Common Stock

24.15 shares

Shares

+24.15

Strike price

Held after

553.90

Exercisable

—

9/30/2026
MASTERSON WILLIAM F III — Insider Transaction (Form 4) Filed Oct 1, 2026 | Finecho