[Form 4] CABOT CORP Insider Trading Activity

Rhea-AI Filing Summary

Erica McLaughlin, Executive Vice President and CFO of Cabot Corporation (CBT), reported an acquisition on Form 4 dated 09/11/2025. The filing shows the receipt of 49.1022 phantom stock units credited as dividends under the company’s Supplemental 401(k) Plan; these units represent 49.1022 underlying shares at a reported per-share value of $81.47. After the transaction, McLaughlin beneficially owns 8,938.7852 shares directly. The phantom stock units are payable upon the reporting person’s retirement or other termination of employment, per the filer’s explanation. The Form 4 was signed via power of attorney on 09/15/2025.

Positive

• Acquisition of 49.1022 phantom stock units credited as dividend equivalents under the Supplemental 401(k) Plan
• Direct beneficial ownership increased to 8,938.7852 shares, showing management retains stake
• Transaction disclosed timely on Form 4 and signed via power of attorney

Negative

• None.

Insights

Securities Analyst

TL;DR: Small insider acquisition of phantom units tied to compensation plan; increases direct beneficial ownership modestly.

This Form 4 documents a non-derivative economic accrual rather than an open-market purchase: 49.1022 phantom stock units were credited as dividend equivalents under Cabot’s Supplemental 401(k) Plan and map to 49.1022 underlying shares valued at $81.47 each. The filing reports a post-transaction direct beneficial ownership of 8,938.7852 shares. For investors, this is an administrative compensation-related issuance that modestly increases insider holdings and will settle on termination or retirement.

Compensation & Governance Specialist

TL;DR: Routine compensation crediting; not a discretionary stock purchase and likely not signaling active trading intent.

The explanation clarifies these units are dividend payments on phantom stock under a supplemental retirement plan and will be settled upon exit. Such entries are common for senior executives and reflect plan mechanics rather than opportunistic insider buying or selling. The filing was executed by a named attorney-in-fact, indicating standard administrative handling.

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^*

McLaughlin Erica

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Vice President, CFO

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2025

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)	09/11/2025		A		49.1022		(2)	(2)	Common Stock	49.1022	$81.47	8,938.7852	D

Explanation of Responses:

1. 1 for 1

2. Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan and are to be settled upon the reporting person's retirement or other termination of employment.

	By: Jennifer Lombardi, pursuant to a power of attorney from Erica McLaughlin	09/15/2025
	** 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 did Erica McLaughlin report on the Form 4 for CBT?

The filing reports receipt of 49.1022 phantom stock units on 09/11/2025, representing 49.1022 underlying shares valued at $81.47, resulting in 8,938.7852 shares beneficially owned.

Are these phantom stock units immediately tradable shares?

No. The filing states the units are to be settled upon retirement or other termination of employment, so they are not immediately tradable shares.

Why were phantom stock units credited to the reporting person?

The explanation states they represent dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan.

When was the Form 4 executed and who signed it?

The Form 4 shows execution on 09/15/2025 and was signed by Jennifer Lombardi pursuant to a power of attorney from Erica McLaughlin.

Does the filing indicate a purchase or sale in the open market?

No. The transaction code and explanation indicate these are dividend-equivalent credits under a compensation plan, not open-market trades.