# RATIONAL SOFTWARE CORP

RATIONAL SOFTWARE CORP is a company headquartered in Cupertino, CA, United States.

## Company overview

- **Legal name:** RATIONAL SOFTWARE CORP
- **Classification:** Company
- **Industry (SIC):** 7372 — Services-Prepackaged Software
- **Headquarters:** Cupertino, CA, United States
- **Incorporated in:** DE
- **Fiscal year end:** March 31
- **SEC CIK:** 0000722056

## About

RATIONAL SOFTWARE CORP is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000722056, and its reported industry is Services-Prepackaged Software. The retained history contains 12 filings, including SC 13G filed on 2003-02-14. 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 2003-02-14 — RATIONAL SOFTWARE CORP
- Form SC 13G — filed 2003-02-14 — DOC ONE
- Form 10-Q — filed 2003-02-11 — period 2002-12-31 — 10Q
- Form 8-K — filed 2002-12-09 — period 2002-12-06 — FORM 8-K DTD 12/06/2002
- Form 10-Q — filed 2002-11-14 — period 2002-09-30 — 10-Q
- Form 10-Q — filed 2002-08-14 — period 2002-06-30 — 10Q
- Form DEF 14A — filed 2002-07-12 — period 2002-08-15 — NOTICE AND PROXY STATEMENT
- Form 10-K — filed 2002-06-26 — period 2002-03-31 — FORM 10-K
- Form 10-Q — filed 2002-02-12 — period 2001-12-31 — 10Q BODY
- Form 10-Q — filed 2001-11-14 — period 2001-09-30 — BODY
- Form SC 13G — filed 2001-10-10 — SC 13G
- Form 10-Q — filed 2001-08-10 — period 2001-06-30 — 10Q Q102

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Updated: 2026-10-23T22:33:56Z

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