CABOT CORP — Director's Dealing 2016

Apr 11, 2016

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: CABOT CORP (CBT)
CIK: 0000016040
Period of Report: 2016-04-07

Reporting Person: Kalkstein Hobart (Senior Vice President)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	18152.902	Direct
Common Stock	14130	Indirect
Common Stock	5818.0574	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (Right to Buy)	$16.90	2019-05-06	Common Stock (16300)		Direct
Employee Stock Option (Right to Buy)	$46.03	2024-11-13	Common Stock (4017)		Direct
Employee Stock Option (Right to Buy)	$39.54	2025-11-11	Common Stock (5763)		Direct
Phantom Stock	$		Common Stock (1980.476)		Direct

Footnotes

F1: Includes 1,259 performance based units earned on the basis of the Corporation's performance in fiscal year 2014 and 2015 (which remain subject to time-based vesting) and 7,140 units subject to time-based vesting.

F2: Reflects retirement plan contributions by the Corporation.

F3: The option vested over a three year period as follows: 30% on May 7, 2010, 30% on May 7, 2011 and 40% on May 7, 2012.

F4: The option vests over a three year period as follows: 30% on November 14, 2015, 30% on November 14, 2016 and 40% on November 14, 2017.

F5: The option vests over a three year period as follows: 30% on November 12, 2016, 30% on November 12, 2017 and 40% on November 12, 2018.

F6: Each share of phantom stock is the economic equivalent of one share of Cabot Corporation common stock. The shares of phantom stock will be settled in shares of Cabot Corporation common stock upon termination of his employment with Cabot Corporation.