CABOT CORP — Director's Dealing 2016

Nov 15, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CABOT CORP (CBT)
CIK: 0000016040
Period of Report: 2016-11-11

Reporting Person: von Gottberg Friedrich (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-11-11	Common Stock	A	4161	$0.00	Acquired	26207	Direct
2016-11-14	Common Stock	M	19553	$32.95	Acquired	45760	Direct
2016-11-14	Common Stock	S	19553	$51.05	Disposed	26207	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-11-11	Employee Stock Option (Right to Buy)	$50.46	A	19245	Acquired	2026-11-10	Common Stock (19245)	Direct
2016-11-14	Employee Stock Option (Right to Buy)	$32.95	M	19553	Acquired	2021-11-10	Common Stock (19553)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	15204	Indirect

Footnotes

F1: The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $51.00 to $51.19, 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: The option vests over a three year period as follows: 30% on November 11, 2017, 30% on November 11, 2018 and 40% on November 11, 2019.

F4: 19,553 shares were subject to the option. The option vested over a three year period as follows: 30% November 11, 2012, 30% November 11, 2013 and 40% November 11, 2014.