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*
von Gottberg Friedrich

(Last) (First) (Middle)
C/O CABOT CORPORATION
TWO SEAPORT LANE, SUITE 1300

(Street)
BOSTON MA 02210

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/13/2015
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 18,904 D
Common Stock 1,000 I Held by wife
Common Stock 14,687 I(1) Through the Trustees 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)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy) (2) 11/11/2020 Common Stock 15,909 34.64 D
Employee Stock Option (Right to Buy) (3) 11/10/2021 Common Stock 19,553 32.95 D
Employee Stock Option (Right to Buy) (4) 11/08/2022 Common Stock 19,662 35.25 D
Employee Stock Option (Right to Buy) (5) 11/07/2023 Common Stock 13,344 47.62 D
Employee Stock Option (Right to Buy) (6) 11/13/2024 Common Stock 15,625 46.03 D
Phantom Stock (7) (7) Common Stock 9,492.8123 (7) D
Explanation of Responses:
1. Reflects retirement plan contributions by the Corporation.
2. 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.
3. 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.
4. The option vests over a three year period as follows: 30% on November 9, 2013, 30% on November 9, 2014 and 40% on November 9, 2015.
5. The option vests over a three year period as follows: 30% on November 8, 2014, 30% on November 8, 2015 and 40% on November 8, 2016.
6. 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.
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 Friedrich von Gottberg 03/16/2015
** 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.
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Exhibit 24


POWER OF ATTORNEY

	Know all by these presents, that the undersigned hereby constitutes and
appoints each of Michaela Allbee, Jane A. Bell, Brian A. Berube, Karen Kalita
and Kristine Ouimet, signing singly, the undersigned's true and lawful attorney
in fact to:

(1)	execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of Cabot Corporation (the "Company"), Forms 3, 4,
and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934
and the rules thereunder;

(2)	do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, or 5
(including executing and filing a Form I.D.), complete and execute any amendment
or amendments thereto, and timely file such form with the United States
Securities and Exchange Commission and any stock exchange or similar authority;
and

(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney in fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney in fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney in fact may approve in such
attorney in fact's discretion.

	The undersigned hereby grants to each such attorney in fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney in fact, or such attorney
in fact's substitute or substitutes, shall lawfully do or cause to be done by
virtue of this power of attorney and the rights and powers herein granted.  The
undersigned acknowledges that the foregoing attorneys in fact, in serving in
such capacity at the request of the undersigned, are not assuming, nor is the
Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.

	This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys in fact.  The undersigned hereby revokes any previous powers
of attorney delivered to the Company concerning the subject matter hereof.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 11th day of March, 2015.


/s/ Friedrich von Gottberg
Signature