State Street discloses 6.7% stake in Metallus Inc

State Street Corporation reports beneficial ownership of 2,799,274 shares of Metallus Inc common stock, representing 6.7% of the class as of 03/31/2026.

Rhea-AI Filing Summary

State Street Corporation reports beneficial ownership of 2,799,274 shares of Metallus Inc common stock, representing 6.7% of the class as of 03/31/2026. The filing shows shared voting power of 2,727,940 shares and lists affiliated investment-advisor subsidiaries as holders.

The schedule is a passive ownership disclosure under a Schedule 13G filing and identifies SSGA Funds Management and State Street Global Advisors entities as related parties. Signature on the form is by a senior officer on 05/12/2026.

Insights

Institutional Ownership Analyst

Large index/asset-manager stake disclosed: 2,799,274 shares (6.7%).

State Street reports beneficial ownership of 2,799,274 shares with shared voting power of 2,727,940 as of 03/31/2026. The filing lists multiple State Street advisory subsidiaries, indicating holdings managed in a fiduciary or advisory capacity.

Such holdings are typical for asset managers and usually reflect pooled or fund positions. Subsequent filings may show changes if portfolios are rebalanced or if any subsidiary changes voting or dispositive arrangements.

Corporate Governance Specialist

Disclosure clarifies voting and disposition are shared, not sole, reflecting agency arrangements.

The Schedule shows no sole voting or dispositive power and records shared authorities instead, which signals that voting decisions may be coordinated across State Street entities or delegated to portfolio managers. The filing includes the required identification of related advisory subsidiaries.

For governance monitoring, note the 6.7% ownership figure and the list of affiliated managers; any future changes to voting arrangements or large reallocations would be recorded in amendments or subsequent schedules.

Key Figures

Beneficial ownership: 2,799,274 shares Percent of class: 6.7% Shared voting power: 2,727,940 shares +2 more

5 metrics

Beneficial ownership 2,799,274 shares as of 03/31/2026

Percent of class 6.7% ownership percentage reported on Schedule 13G

Shared voting power 2,727,940 shares number of shares with shared voting power

Shared dispositive power 2,799,274 shares number of shares with shared dispositive power

Form signature date 05/12/2026 signed by Senior VP, Chief Accounting Officer

Key Terms

Schedule 13G, Shared dispositive power, Beneficially owned, Investment-advisor subsidiaries

4 terms

Schedule 13G regulatory

"Passive beneficial ownership reporting form filed by institutional investors"

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.

Shared dispositive power financial

"Number of shares for which the filer shares the power to direct disposition"

Beneficially owned financial

"Amount beneficially owned: 2799274.00"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Investment-advisor subsidiaries regulatory

"SSGA FUNDS MANAGEMENT, INC.; STATE STREET GLOBAL ADVISORS LIMITED"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does State Street (MTUS) report in Metallus Inc?

State Street reports beneficial ownership of 2,799,274 shares, equal to 6.7% of Metallus Inc's common stock as of 03/31/2026. This reflects combined holdings across affiliated advisory entities listed in the filing.

Does State Street have sole voting control over MTUS shares?

No. The filing lists 0 shares with sole voting power and 2,727,940 shares with shared voting power, indicating voting authority is shared among State Street entities or delegated to managers.

Which State Street subsidiaries are identified as holders for MTUS?

The filing names affiliated investment-advisor entities including SSGA Funds Management, Inc., State Street Global Advisors Europe Limited, State Street Global Advisors Limited, and others as the relevant subsidiaries managing the holdings.

What date does the Schedule 13G ownership snapshot use for MTUS?

The ownership amounts are reported as of 03/31/2026. The form is signed by a corporate officer on 05/12/2026, which appears as the filing signature date.

Is this Schedule 13G an active intent to acquire control of Metallus Inc (MTUS)?

No. A Schedule 13G typically reports passive or institutional holdings. The filing shows shared powers and lists advisory subsidiaries, consistent with investment-management positions rather than a takeover intent.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/12/2026 - 11:35 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

METALLUS INC

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

887399103

(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): 887399103

1

Names of Reporting Persons

STATE STREET CORPORATION

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

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,727,940.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,799,274.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,799,274.00

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)

6.7 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: METALLUS INC
(b)	Address of issuer's principal executive offices: 1835 DUEBER AVE SW, CANTON, OHIO, 44706
Item 2.
(a)	Name of person filing: STATE STREET CORPORATION;
(b)	Address or principal business office or, if none, residence: ONE CONGRESS STREET, SUITE 1, BOSTON MA 02114, UNITED STATES
(c)	Citizenship: MA
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP Number(s): 887399103
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: 2799274.00
(b)	Percent of class: 6.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 2,727,940
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 2,799,274
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. NOT APPLICABLE
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. SSGA FUNDS MANAGEMENT, INC. (IA);STATE STREET GLOBAL ADVISORS EUROPE LIMITED (IA);STATE STREET GLOBAL ADVISORS LIMITED (IA);STATE STREET GLOBAL ADVISORS TRUST COMPANY (IA);STATE STREET GLOBAL ADVISORS, LTD. (IA);
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. NOT APPLICABLE
Item 9.	Notice of Dissolution of Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5. 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.

STATE STREET CORPORATION

Signature:	ELIZABETH SCHAEFER
Name/Title:	SENIOR VICE PRESIDENT, CHIEF ACCOUNTING OFFICER
Date:	05/12/2026