# EDGAR Filing Document

**Accession Number:** 0001018963
**File Stem:** 0000000000-25-006568
**Filing Date:** 2025-6
**Character Count:** 2040
**Document Hash:** 06647e2c5694bb7f2b0a619c7eeadc6e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000000000-25-006568.hdr.sgml**: 20250825

**ACCESSION NUMBER**: 0000000000-25-006568

**CONFORMED SUBMISSION TYPE**: UPLOAD

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250624

**FILED FOR**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ATI INC
- **CENTRAL INDEX KEY:** 0001018963
- **STANDARD INDUSTRIAL CLASSIFICATION:** STEEL PIPE & TUBES [3317]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 251792394
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1228

**FILING VALUES:**
- **FORM TYPE:** UPLOAD
- **SEC FILE NUMBER:** 001-12001

**BUSINESS ADDRESS:**
- **STREET 1:** 2021 MCKINNEY AVENUE
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75201
- **BUSINESS PHONE:** 4123942800

**MAIL ADDRESS:**
- **STREET 1:** 2021 MCKINNEY AVENUE
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75201

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALLEGHENY TECHNOLOGIES INC
- **DATE OF NAME CHANGE:** 19991213

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALLEGHENY TELEDYNE INC
- **DATE OF NAME CHANGE:** 19960716
**PUBLIC REFERENCE ACCESSION NUMBER**: 0001628280-25-007092

## Text-Extract

```

                                                        June 24, 2025

Donald P. Newman
Chief Financial Officer
ATI Inc.
2021 McKinney Avenue
Dallas, Texas 75201

       Re: ATI Inc.
           Form 10-K for the Fiscal Year Ended December 29, 2024
           File No. 001-12001
Dear Donald P. Newman:

       We have completed our review of your filings. We remind you that the
company and
its management are responsible for the accuracy and adequacy of their
disclosures,
notwithstanding any review, comments, action or absence of action by the staff.

                                                        Sincerely,

                                                        Division of Corporation
Finance
                                                        Office of Manufacturing

```

### Attached PDF Documents

**Attachment 1:** `filename1`

_No text found in this document._