SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Doubman John R

(Last)

(First)

(Middle)

C/O CABOT CORPORATION

TWO SEAPORT LANE, SUITE 1300

(Street)

BOSTON

02210

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/01/2018

3. Issuer Name and Ticker or Trading Symbol
CABOT CORP [ CBT ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Senior Vice President

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	13,599⁽¹⁾	D
Common Stock	824.9	I	Through the Trustee for the Corporation's 401(k) Plan

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Employee Stock Option (Right to Buy)	⁽²⁾	11/13/2024	Common Stock	4,017	$46.03	D
Employee Stock Option (Right to Buy)	⁽³⁾	11/11/2025	Common Stock	2,306	$39.54	D
Employee Stock Option (Right to Buy)	⁽⁴⁾	04/06/2026	Common Stock	2,834	$47.23	D
Employee Stock Option (Right to Buy)	⁽⁵⁾	11/10/2026	Common Stock	13,747	$50.46	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	11/09/2027	Common Stock	12,639	$62.24	D
Phantom Stock	⁽⁷⁾	⁽⁷⁾	Common Stock	3,096.21	$62.72	D

Explanation of Responses:

1. Includes 4,686 performance based units earned on the basis of the Corporation's performance in fiscal year 2016 and 2017 (which remain subject to time-based vesting) and 8,913 units subject to time-based vesting.

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

3. 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.

4. The option vests over a three year period as follows: 30% on April 7, 2017, 30% on April 7, 2018 and 40% on April 7, 2019.

5. 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.

6. The option vests over a three year period as follows: 30% on November 10, 2018, 30% on November 10, 2019 and 40% on November 10, 2020

7. 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.

Remarks:

	By: Kristine L. Ouimet, pursuant to a power of attorney from John R. Doubman	10/10/2018
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.