Dirk A. Kempthorne - 13 Feb 2026 Form 4 Insider Report for OLYMPIC STEEL INC (ZEUS)

Role: Director
Signature: /s/ Lisa K. Christen, as Attorney-In-Fact
Issuer symbol: ZEUS
Transactions as of: 13 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 17 Feb 2026, 13:11:07 UTC
Previous filing: 16 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Kempthorne Dirk A	Director	C/O OLYMPIC STEEL, INC., 22901 MILLCREEK BLVD., SUITE 650, HIGHLAND HILLS	/s/ Lisa K. Christen, as Attorney-In-Fact	17 Feb 2026	0001463021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ZEUS	Common Stock	Disposed to Issuer		-5,231	-100%		0	13 Feb 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ZEUS	Restricted Share Units	Disposed to Issuer		-42,826	-100%		0	13 Feb 2026	Common Stock	42,826		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of Olympic Steel, Inc. common stock, without par value ("Company common stock"), disposed of pursuant to the Agreement and Plan of Merger ("Merger Agreement"), dated as of October 28, 2025, by and among Olympic Steel, Inc. (the "Company"), Ryerson Holding Corporation ("Parent"), and Crimson MS Corp. (including restricted shares that vested in connection with the merger). At the effective time of the merger, each such share of Company common stock was converted into the right to receive a number of shares of common stock, $0.01 par value per share, of Parent ("Parent common stock"), multiplied by 1.7105 (rounded down to the nearest whole share), plus a cash payment (rounded down to the nearest cent) in lieu of any fractional shares as determined pursuant to the Merger Agreement.
F2	Each restricted share unit ("RSU") represents the contingent right to receive one share of Company common stock. These RSUs are fully vested and will generally be settled upon the Reporting Person's separation from service. Pursuant to the Merger Agreement, these RSUs were converted into RSUs with respect to Parent common stock by multiplying the number of shares of Company common stock underlying the award by 1.7105 (rounded down to the nearest whole share) and were immediately settled in shares of Parent common stock in connection with the Reporting Person's separation from service, which occurred at the effective time of the merger.

Content

Represents shares of Olympic Steel, Inc. common stock, without par value ("Company common stock"), disposed of pursuant to the Agreement and Plan of Merger ("Merger Agreement"), dated as of October 28, 2025, by and among Olympic Steel, Inc. (the "Company"), Ryerson Holding Corporation ("Parent"), and Crimson MS Corp. (including restricted shares that vested in connection with the merger). At the effective time of the merger, each such share of Company common stock was converted into the right to receive a number of shares of common stock, $0.01 par value per share, of Parent ("Parent common stock"), multiplied by 1.7105 (rounded down to the nearest whole share), plus a cash payment (rounded down to the nearest cent) in lieu of any fractional shares as determined pursuant to the Merger Agreement.

Each restricted share unit ("RSU") represents the contingent right to receive one share of Company common stock. These RSUs are fully vested and will generally be settled upon the Reporting Person's separation from service. Pursuant to the Merger Agreement, these RSUs were converted into RSUs with respect to Parent common stock by multiplying the number of shares of Company common stock underlying the award by 1.7105 (rounded down to the nearest whole share) and were immediately settled in shares of Parent common stock in connection with the Reporting Person's separation from service, which occurred at the effective time of the merger.