Michael S. Williams - 08 Jan 2026 Form 4 Insider Report for Metallus Inc. (MTUS)

Signature
/s/ Kristine C. Syrvalin, as Attorney-in-Fact
Issuer symbol
MTUS
Transactions as of
08 Jan 2026
Net transactions value
-$368,621
Form type
4
Filing time
09 Jan 2026, 18:00:13 UTC
Previous filing
18 Dec 2025
Next filing
16 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Williams Michael S Chief Executive Officer, Director 1835 DUEBER AVE. SW, CANTON /s/ Kristine C. Syrvalin, as Attorney-in-Fact 09 Jan 2026 0001554176

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MTUS Common Shares Sale $276,224 -14,462 -2% $19.10 702,208 08 Jan 2026 Direct F1
transaction MTUS Common Shares Sale $92,397 -4,835 -0.69% $19.11 697,373 09 Jan 2026 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 Price reported is the weighted average sale price for shares sold by the reporting owner on January 8, 2026. Shares were sold at a variety of prices ranging from $19.00 to $19.27.
F2 Price reported is the weighted average sale price for shares sold by the reporting owner on January 9, 2026. Shares were sold at a variety of prices ranging from $19.00 to $19.39.

Remarks:

The reporting person adopted a written plan for the sale of the Company's common shares intended to satisfy the affirmative defense conditions of Exchange Act Rule 10b5-1(c) on May 23, 2025. All transactions reported herein were made pursuant to that plan.