Cabot Corp (CBT) VP Lisa Dumont receives phantom stock unit award in Form 4 filing

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Cabot Corp officer Lisa M. Dumont received a small grant of phantom stock units as part of her compensation. She acquired 3.9820 Phantom Stock Units linked 1-for-1 to Cabot common stock at a reference price of $87.65 per share. These units were credited as dividend equivalents under the company’s Supplemental 401(k) Plan and will be settled in the future when she retires or otherwise leaves the company. Following this award, she holds a total of 742.6524 phantom stock units directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Dumont Lisa M

Role VP, Controller & CAO

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units	3.982	$87.65	$349.02

Holdings After Transaction: Phantom Stock Units — 742.652 shares (Direct, null)

Footnotes (1)

1 for 1 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.

Key Figures

Phantom units granted: 3.9820 units Reference price per unit: $87.65 per share Total phantom units after grant: 742.6524 units +1 more

4 metrics

Phantom units granted 3.9820 units Grant/award acquisition on 2026-06-12

Reference price per unit $87.65 per share Phantom units linked to common stock

Total phantom units after grant 742.6524 units Holdings following transaction

Conversion ratio 1 for 1 Phantom units to Cabot common stock

Key Terms

Phantom Stock Units, Supplemental 401(k) Plan, grant/award acquisition, transaction code A

4 terms

Phantom Stock Units financial

"Represents dividends paid on phantom stock units acquired under the Corporation's Supplemental 401(k) Plan"

Phantom stock units are company promises that pay a cash or stock-equivalent award tied to the firm’s share price or value growth, but they do not issue actual shares. Think of them as a bonus check that moves with the stock like a mirror rather than handing over an ownership slice. Investors care because these awards can affect a company’s future cash obligations, executive incentives and reported expenses without causing share dilution.

Supplemental 401(k) Plan financial

"phantom stock units acquired under the Corporation's Supplemental 401(k) Plan"

grant/award acquisition financial

"transaction_action: grant/award acquisition"

transaction code A regulatory

"transaction_code: "A" with description Grant, award, or other acquisition"

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Form 4 Insider Transactions: What Each Field Means →

06/16/2026 - 04:30 PM

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^*

Dumont Lisa M

(Last)

(First)

(Middle)

C/O CABOT CORPORATION

TWO SEAPORT LANE, SUITE 1400

(Street)

BOSTON

MASSACHUSETTS

02210

(City)

(State)

(Zip)

UNITED STATES

(Country)

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)
	VP, Controller & CAO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Phantom Stock Units	⁽¹⁾	06/12/2026		A		3.982		⁽²⁾	⁽²⁾	Common Stock	3.982	$87.65	742.6524	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 Lisa M. Dumont	06/16/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Cabot Corp (CBT) disclose about Lisa M. Dumont’s latest Form 4 transaction?

Cabot Corp reported that officer Lisa M. Dumont received 3.9820 Phantom Stock Units as a grant or award. These units were credited as dividend equivalents under the Supplemental 401(k) Plan and will be settled after retirement or termination of employment.

How many phantom stock units does Cabot Corp (CBT) officer Lisa M. Dumont hold after this filing?

After this transaction, Lisa M. Dumont holds 742.6524 Phantom Stock Units. The filing states these units track Cabot common stock on a 1-for-1 basis and are payable upon her retirement or other termination of employment under the Supplemental 401(k) Plan.

Was the Cabot Corp (CBT) Form 4 transaction an open-market buy or sell of common stock?

No, the Form 4 shows a grant of Phantom Stock Units, not an open-market stock trade. The transaction code is “A” for grant or award acquisition, reflecting compensation-related phantom units credited under the Supplemental 401(k) Plan.

What are Phantom Stock Units in the context of Cabot Corp (CBT) Form 4?

Phantom Stock Units are compensation instruments that mirror Cabot common stock value on a 1-for-1 basis. In this filing, they represent dividend equivalents under the Supplemental 401(k) Plan, to be settled when the reporting person retires or otherwise leaves the company.

When will Lisa M. Dumont’s Cabot Corp (CBT) Phantom Stock Units be settled?

The Phantom Stock Units will be settled upon Lisa M. Dumont’s retirement or other termination of employment. The filing explains that these units represent dividends paid on phantom stock acquired under the Supplemental 401(k) Plan and are deferred until that future event.