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: BERUBE BRIAN A (SVP, General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-08-23	Common Stock	S	8000	$49.9125	Disposed	42622	Direct
2016-08-23	Common Stock	M	8489	$34.64	Acquired	51111	Direct
2016-08-23	Common Stock	S	8489	$49.884	Disposed	42622	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-08-23	Employee Stock Option (Right to Buy)	$34.64	M	8489	Disposed	2020-11-11	Common Stock (8489)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	8286	Indirect

Footnotes

F1: The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $49.835 to $49.930, 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: The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $49.711 to $50.25, 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.

F3: Reflects retirement plan contributions by the Corporation, including contributions that have occurred since the date of the reporting person's last ownership report.

F4: 8,489 shares were subject to the option. The option vested over a three year period as follows: 30% on November 12, 2011, 30% on November 12, 2012 and 40% on November 12, 2013.