CABOT CORP — Director's Dealing 2016

Aug 24, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CABOT CORP (CBT)
CIK: 0000016040
Period of Report: 2016-08-23

Reporting Person: CORDEIRO EDUARDO E (Executive Vice President, CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-08-23	Common Stock	M	27073	$32.95	Acquired	93026	Direct
2016-08-23	Common Stock	S	27073	$49.982	Disposed	65953	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-08-23	Employee Stock Option (Right to Buy)	$32.95	M	27073	Disposed	2021-11-10	Common Stock (27073)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	9715	Indirect

Footnotes

F1: The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $49.925 to $50.14, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, the Corporation or any security holder of the Corporation, upon request, full information regarding the number of shares sold at each separate price.

F2: Reflects retirement plan contributions by the Corporation, including contributions that have occurred since the date of the reporting person's last ownership report.

F3: 27,073 shares were subject to the option. The option vested over a three year period as follows: 30% on November 11, 2012, 30% on November 11, 2013 and 40% on November 11, 2014.