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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000912938-01-000161
Filing Date
2001-02-12
Accepted
2001-02-12 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 RATIONAL SOFTWARE CORPORATION 0001.txt SC 13G 6988
  Complete submission text file 0000912938-01-000161.txt   9047
Mailing Address 18880 HOMESTEAD RD CUPERTINO CA 95014
Business Address 18880 HOMESTEAD RD CUPERTINO CA 95014 4088639900
RATIONAL SOFTWARE CORP (Subject) CIK: 0000722056 (see all company filings)

IRS No.: 541217099 | State of Incorp.: DE | Fiscal Year End: 0331
Type: SC 13G | Act: 34 | File No.: 005-36182 | Film No.: 1532644
SIC: 7372 Services-Prepackaged Software

Mailing Address 500 BOYLSTON STREET 15TH FLOOR BOSTON MA 02116
Business Address 500 BOYLSTON ST 15TH FL BOSTON MA 02116 6179545261
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (Filed by) CIK: 0000912938 (see all company filings)

State of Incorp.: MA | Fiscal Year End: 1231
SIC: 0000