Cabot (NYSE: CBT) director acquires 28.1918 phantom stock units

Rhea-AI Filing Summary

Cabot Corporation reported a routine insider equity transaction by one of its directors. On 12/12/2025, the director acquired 28.1918 phantom stock units at a price of $68.34 per unit under Cabot’s Non-Employee Director's Deferral Plan. These units are designed to mirror the value of Cabot common stock on a one-for-one basis.

The 28.1918 units represent dividends paid on existing phantom stock unit holdings and will be settled either when the director’s board service ends or according to the director’s prior distribution election, whichever happens first. Following this transaction, the director beneficially owns a total of 4,309.5886 phantom stock units, held directly.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Nathoo Raffiq

(Last) (First) (Middle)

C/O CABOT CORPORATION

TWO SEAPORT LANE, SUITE 1400

(Street)

BOSTON MA 02210

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/12/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock Units	(1)	12/12/2025		A		28.1918		(2)	(2)	Common Stock	28.1918	$68.34	4,309.5886	D

Explanation of Responses:

1. 1 for 1

2. Represents dividends paid on phantom stock units acquired under the Corporation's Non-Employee Director's Deferral Plan and will be settled either upon the reporting person's termination of service as a director or in accordance with the distribution election of the reporting person, whichever first occurs.

	By: Jennifer Lombardi, pursuant to a power of attorney from Raffiq Nathoo	12/16/2025
	** 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 4 (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.

FAQ

What insider transaction did Cabot Corporation (CBT) report in this Form 4?

A Cabot Corporation director reported acquiring 28.1918 phantom stock units on 12/12/2025 under the company’s Non-Employee Director's Deferral Plan.

What are the terms of the phantom stock units reported for Cabot Corporation (CBT)?

The phantom stock units convert on a 1-for-1 basis into Cabot common stock value and are tied to the company’s Non-Employee Director's Deferral Plan.

Why did the Cabot Corporation (CBT) director receive 28.1918 phantom stock units?

The 28.1918 phantom stock units represent dividends paid on previously acquired phantom stock units under Cabot’s Non-Employee Director's Deferral Plan.

When will the Cabot Corporation (CBT) phantom stock units be settled for the director?

The phantom stock units will be settled either upon the director’s termination of service as a director or in accordance with the director’s distribution election, whichever occurs first.

How many phantom stock units does the Cabot Corporation (CBT) director own after this transaction?

After the 12/12/2025 transaction, the director beneficially owns 4,309.5886 phantom stock units, held directly.

What was the reference price for the Cabot Corporation (CBT) phantom stock units acquired?

The transaction reports a price of $68.34 per phantom stock unit for the 28.1918 units acquired.

Is the Cabot Corporation (CBT) reporting person a director or officer?

The form identifies the reporting person’s relationship to Cabot Corporation as a Director of the company.