Karen A. Kalita - 30 Sep 2025 Form 4 Insider Report for CABOT CORP (CBT)

Role: SVP and General Counsel
Signature: By: Mazda Cintron, pursuant to a power of attorney from Karen A. Kalita
Issuer symbol: CBT
Transactions as of: 30 Sep 2025
Net transactions value: +$5,539
Form type: 4
Filing time: 02 Oct 2025, 16:40:44 UTC
Previous filing: 15 Sep 2025
Next filing: 12 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Kalita Karen A	SVP and General Counsel	C/O CABOT CORPORATION, TWO SEAPORT LANE, SUITE 1400, BOSTON	By: Mazda Cintron, pursuant to a power of attorney from Karen A. Kalita	02 Oct 2025	0001778734

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CBT	Phantom Stock Units	Award	$5,539	+73	+1.7%	$76.05	4,297	30 Sep 2025	Common Stock	73		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	1 for 1
F2	The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service.