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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000912938-04-000195
Filing Date
2004-02-13
Accepted
2004-02-12 18:04:44
Documents
1

Document Format Files

Seq Description Document Type Size
1 F5 f5.txt SC 13G 7098
  Complete submission text file 0000912938-04-000195.txt   9221
Mailing Address 500 BOYLSTON STREET 15TH FLOOR BOSTON MA 02116
Business Address 500 BOYLSTON ST 15TH FL BOSTON MA 02116 18006372929
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (Filed by) CIK: 0000912938 (see all company filings)

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

Mailing Address 401 ELLIOT AVE WEST STE 500 SEATTLE WA 98119
Business Address 401 ELLIOT AVE WEST STE 500 SEATTLE WA 98119 2062725555
F5 NETWORKS INC (Subject) CIK: 0001048695 (see all company filings)

IRS No.: 911714307 | State of Incorp.: WA | Fiscal Year End: 0930
Type: SC 13G | Act: 34 | File No.: 005-56407 | Film No.: 04593319
SIC: 7373 Services-Computer Integrated Systems Design