Metallus (MTUS) Chief Accounting Officer reports 6,500-share grant and tax disposal

Rhea-AI Filing Summary

Metallus Inc. Chief Accounting Officer Nicholas A. Yacobozzi reported two transactions in common stock. On March 2, 2026, he acquired 6,500 shares at $0.00 per share as an award of restricted stock units that will vest in full on March 2, 2029, subject to the grant agreement. Following this grant, he directly owned 54,043 shares of common stock. On March 1, 2026, 2,842 shares were disposed of at $17.00 per share in a tax-withholding transaction to pay exercise price or tax liability, and this is classified as a direct ownership disposition.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Yacobozzi Nicholas A

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	6,500	$0.00	--
Tax Withholding	Common Stock	2,842	$17.00	$48K

Holdings After Transaction: Common Stock — 54,043 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Yacobozzi Nicholas A

(Last) (First) (Middle)

1835 DUEBER AVE. SW

(Street)

CANTON OH 44706

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Metallus Inc. [ MTUS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

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
Common Stock	03/01/2026		F		2,842	D	$17	47,543	D
Common Stock	03/02/2026		A		6,500(1)	A	$0	54,043	D

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

Explanation of Responses:

1. The reported transaction is an award of restricted stock units which will vest in full on March 2, 2029, subject to the terms of the grant agreement.

	/s/ Kristine C. Syrvalin, as Attorney-in-Fact	03/02/2026
	** 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.

FAQ

What did Metallus (MTUS) insider Nicholas Yacobozzi report in this Form 4?

Nicholas A. Yacobozzi reported an equity award and a tax-related share disposition. He received 6,500 restricted stock units and had 2,842 shares withheld at $17.00 per share to satisfy exercise price or tax obligations.

How many Metallus (MTUS) shares did Nicholas Yacobozzi acquire in the reported grant?

He acquired 6,500 shares of Metallus common stock via an award coded as a grant or other acquisition. These are restricted stock units scheduled to vest fully on March 2, 2029, subject to the terms of the grant agreement.

When do Nicholas Yacobozzi’s Metallus (MTUS) restricted stock units vest?

The reported restricted stock unit award will vest in full on March 2, 2029. Vesting is subject to the terms and conditions of the underlying grant agreement governing this 6,500-share equity award from Metallus Inc.

Why were 2,842 Metallus (MTUS) shares disposed of in this Form 4?

The 2,842 shares were disposed of in a transaction coded “F,” meaning they were used to pay an exercise price or tax liability. This tax-withholding disposition occurred at $17.00 per share as part of equity compensation mechanics.

How many Metallus (MTUS) shares does Nicholas Yacobozzi own after these transactions?

After the March 2, 2026 grant, Nicholas A. Yacobozzi directly owned 54,043 shares of Metallus common stock. This total reflects the reported equity award and prior activity described in the Form 4 transactions.

What is the role of Nicholas A. Yacobozzi at Metallus (MTUS)?

Nicholas A. Yacobozzi serves as Chief Accounting Officer at Metallus Inc. His status as an officer makes him a reporting person, requiring disclosure of equity awards and related share dispositions on Form 4 with the SEC.