Company: ZEUS
Filing Date: 2025-10-28
Form Type: 425
Source: 0001193125-25-253626
Chunk: 6

Company: OLYMPIC STEEL INC
Filing Date: 2025-10-28
Form: 425
Chunk 6
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us carefully when it becomes available before making any voting or investment decisions. Item 9.01 Financial Statements and Exhibits. d) Exhibits The following exhibits are being furnished or filed, as applicable, with this Current Report on Form 8-K:

| Exhibit Number 
 99.1           
 99.2           |     | Exhibit Title or Description                                                                    
 Ryerson Holding Corporation press release dated October 28, 2025.                               
 Ryerson Holding Corporation quarterly release presentation dated October 28, 2025.              |
|:---------------|:----|:------------------------------------------------------------------------------------------------|
| 99.3           |     | Ryerson Holding Corporation and Olympic Steel, Inc. joint press release dated October 28, 2025. |
| 99.4           |     | Ryerson Holding Corporation and Olympic Steel, Inc. joint presentation dated October 28, 2025.  |
| 104            |     | Cover Page Interactive Data File (embedded within the Inline XBRL document)                     |

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

| Date: | October 28, 2025 | By: | RYERSON HOLDING CORPORATION                          
 /s/ James. J. Claussen                               |
|:------|:-----------------|:----|:-----------------------------------------------------|
|       |                  |     | Executive Vice President and Chief Financial Officer |

Exhibit 99.1 Ryerson Reports Third Quarter 2025 Results Executed on self-help actions to achieve revenue within guidance range against backdrop of protracted weak demand and tariff pricing conditions CHICAGO – October 28, 2025 – Ryerson Holding Corporation (NYSE: RYI), a leading value-added processor and distributor of industrial metals, today reported results for the third quarter ended September 30, 2025. Highlights: • Generated third quarter revenue of $1.16 billion, in-line with guidance, with average selling prices up 2.6% and tons shipped down 3.2% compared to the prior quarter • Generated net loss attributable to Ryerson Holding Corporation of $14.8 million, or diluted loss per share of $0.46, and Adjusted EBITDA, excluding LIFO 1 of $40.3 million • Ended the third quarter with debt of $500 million and net debt 2 of $470 million, compared to $510