# SIMPSON INDUSTRIES INC

SIMPSON INDUSTRIES INC is a company headquartered in Plymouth, MI, United States.

## Company overview

- **Legal name:** SIMPSON INDUSTRIES INC
- **Classification:** Company
- **Industry (SIC):** 3714 — Motor Vehicle Parts & Accessories
- **Headquarters:** Plymouth, MI, United States
- **Incorporated in:** MI
- **Fiscal year end:** December 31
- **SEC CIK:** 0000090588

## About

SIMPSON INDUSTRIES INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000090588, and its reported industry is Motor Vehicle Parts & Accessories. The retained history contains 12 filings, including SC 13G filed on 2001-04-09. 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 SC 13G — filed 2001-04-09
- Form SC 13G — filed 2000-12-08
- Form 10-Q — filed 2000-11-08 — period 2000-09-30 — FORM 10-Q
- Form 8-K — filed 2000-10-12 — period 2000-09-28 — FORM 8-K
- Form 10-Q — filed 2000-08-11 — period 2000-06-30 — FORM 10-Q
- Form 10-Q — filed 2000-05-12 — period 2000-03-31
- Form 10-K — filed 2000-03-17 — period 1999-12-31 — FORM 10-K
- Form SC 13G — filed 2000-02-14 — SCHEDULE SC 13G
- Form SC 13G — filed 2000-02-03 — 1999 SCHEDULE 13G - SIMPSON INDS INC
- Form 10-Q — filed 1999-11-10 — period 1999-09-30
- Form 10-Q — filed 1999-08-11 — period 1999-06-30
- Form 10-Q — filed 1999-05-11 — period 1999-03-31

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Updated: 2026-10-23T22:29:09Z

Canonical page: https://altss.com/profile/simpson-industries-inc

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