# ARMCO INC

ARMCO INC is a company headquartered in Pittsburgh, PA, United States.

## Company overview

- **Legal name:** ARMCO INC
- **Classification:** Company
- **Industry (SIC):** 3312 — Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- **Headquarters:** Pittsburgh, PA, United States
- **Incorporated in:** OH
- **Fiscal year end:** December 31
- **SEC CIK:** 0000007383

## About

ARMCO INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000007383, and its reported industry is Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens). The retained history contains 12 filings, including 8-K filed on 1999-09-23. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 8-K — filed 1999-09-23 — period 1999-09-22 — CURRENT REPORT
- Form 10-Q — filed 1999-08-12 — period 1999-06-30 — JUNE 30, 1999
- Form SC 13G — filed 1999-06-02 — SCHEDULE 13G
- Form 8-K — filed 1999-06-01 — period 1999-05-21 — NONE
- Form 10-Q — filed 1999-05-03 — period 1999-03-31 — MARCH 31, 1999
- Form DEF 14A — filed 1999-03-12 — period 1999-04-23 — NOTICE & PROXY
- Form SC 13G — filed 1999-02-22
- Form S-4 — filed 1999-01-26 — FORM S-4
- Form 8-K — filed 1998-12-09 — period 1998-12-07 — NONE
- Form 10-Q — filed 1998-11-05 — period 1998-09-30 — SEPTEMBER 30, 1998
- Form 10-Q — filed 1998-07-24 — period 1998-06-30 — JUNE 30, 1998
- Form 10-Q — filed 1998-04-29 — period 1998-03-31 — MARCH 31, 1998

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Updated: 2026-10-23T22:51:19Z

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