Vanguard ups passive stake in Cabot Corp (CBT): 2.73M shares disclosed

Rhea-AI Filing Summary

Vanguard Capital Management reported beneficial ownership of 2,727,381 shares of Cabot Corp Common Stock, representing 5.22% of the class as reported on this Schedule 13G. The filer indicates sole voting power over 403,074 shares and sole dispositive power over 2,727,381 shares. The filing states these holdings include securities held for Vanguard funds and managed accounts. The signature date on the filing is 04/29/2026.

Insights

Institutional Ownership Analyst

Vanguard holds a >5% passive stake in Cabot Corp, disclosed via Schedule 13G.

Schedule 13G filings are used for passive institutional holdings; the report lists 2,727,381 shares and 5.22% ownership. The filing attributes voting and dispositive powers across Vanguard business units and funds.

Watch subsequent amendments or Schedule 13D filings for any shift to active intent; timing of any changes would appear in later SEC submissions.

Key Figures

Shares beneficially owned: 2,727,381 shares Percent of class: 5.22% Sole voting power: 403,074 shares +2 more

5 metrics

Shares beneficially owned 2,727,381 shares Schedule 13G reported amount

Percent of class 5.22% Ownership percentage reported on Schedule 13G

Sole voting power 403,074 shares Number with sole power to vote as reported

Sole dispositive power 2,727,381 shares Number with sole power to dispose as reported

Filing signature date 04/29/2026 Signature date on Schedule 13G

Key Terms

Schedule 13G, Sole dispositive power, Sole voting power, Investment Company Act of 1940

4 terms

Schedule 13G regulatory

"This Schedule 13G reports beneficial ownership of Cabot Corp common stock"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Sole dispositive power financial

"Sole power to dispose or to direct the disposition of: 2727381"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Sole voting power financial

"Sole power to vote or to direct the vote: 403,074"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Investment Company Act of 1940 regulatory

"A listing of the shareholders of an investment company registered under the Investment Company Act of 1940"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Cabot Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

127055101

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 127055101

1

Names of Reporting Persons

Vanguard Capital Management

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 403,074.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,727,381.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,727,381.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.22 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by Vanguard Capital Management LLC and the following affiliates of Vanguard Capital Management LLC or business divisions of such affiliates: Vanguard Asset Management Limited, Vanguard Fiduciary Trust Company, Vanguard Global Advisers, LLC and Vanguard Investments Australia Ltd. This Schedule 13G includes securities held by Vanguard funds, or sleeves thereof, over which Vanguard Capital Management LLC exercises dispositive power, in addition to securities held by clients over which the affiliates or business divisions of such affiliates indicated above exercise dispositive and/or voting power. This Schedule 13G does not include securities, if any, beneficially owned by other subsidiaries or affiliates of Vanguard Capital Management LLC, or business divisions of such subsidiaries, whose ownership of securities is disaggregated from that of the reporting business unit in accordance with such release.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Cabot Corp
(b)	Address of issuer's principal executive offices: 2 Seaport Lane, Suite 1300, Boston, MA, 02210
Item 2.
(a)	Name of person filing: Vanguard Capital Management
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd,, Malvern, PA, 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 127055101
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2727381
(b)	Percent of class: 5.22 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 403074
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2727381
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Vanguard Capital Management, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein.No one other person's interest in the securities reported herein is more than 5%.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Vanguard Capital Management

Signature:	Ashley Grim
Name/Title:	Head of Global Fund Administration
Date:	04/29/2026

FAQ

What stake does Vanguard Capital Management report in Cabot Corp (CBT)?

Vanguard reports beneficial ownership of 2,727,381 shares, equal to 5.22% of Cabot Corp's Common Stock. This figure and percentage are disclosed on the Schedule 13G filed and signed on 04/29/2026.

How much voting power does Vanguard Capital Management hold in CBT?

Vanguard reports sole voting power over 403,074 shares of Cabot Corp Common Stock. The filing shows no shared voting power and lists dispositive power across Vanguard-managed accounts.

Does the Schedule 13G indicate Vanguard is an active or passive holder?

The filing is a Schedule 13G, typically used for passive institutional investors. The document lists holdings across Vanguard funds and managed accounts and does not state active intent to influence control.

Who signed the Schedule 13G for Vanguard and when?

The Schedule 13G was signed by Ashley Grim, Head of Global Fund Administration, with the signature date of 04/29/2026, as shown on the filing.

Do Vanguard's holdings include shares held for other Vanguard entities?

Yes; the filing states the 2,727,381 shares include securities held by Vanguard funds and other affiliates over which Vanguard exercises dispositive power, per the disclosure language in the report.