CABOT CORP — Director's Dealing 2015

Dec 15, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CABOT CORP (CBT)
CIK: 0000016040
Period of Report: 2015-12-11

Reporting Person: Prevost Patrick M. (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-12-09	Common Stock	G	5000	$0.00	Disposed	291458	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-12-11	Phantom Stock	$	A	202.0989	Acquired		Common Stock (202.0989)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	7768.38	Indirect

Footnotes

F1: Reflects retirement plan contributions by the Corporation, including contributions that have occurred since the date of the reporting person's last ownership report.

F2: 1 for 1

F3: Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and to be settled upon the reporting person's retirement or other termination of employment.