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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001104659-12-009160
Filing Date
2012-02-13
Accepted
2012-02-13 13:28:39
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G/A a12-4673_12sc13ga.htm SC 13G/A 70404
  Complete submission text file 0001104659-12-009160.txt   72002
Mailing Address 225 SOUTH LAKE AVE SUITE 400 PASADENA CA 91101
Business Address 225 SOUTH LAKE AVE STE 400 PASADENA CA 91101-3005 8183049222
PRIMECAP MANAGEMENT CO/CA/ (Filed by) CIK: 0000763212 (see all company filings)

IRS No.: 953868081
Type: SC 13G/A

Mailing Address 133 BOSTON POST ROAD WESTON MA 02493
Business Address 133 BOSTON POST ROAD WESTON MA 02493 7814642000
BIOGEN IDEC INC. (Subject) CIK: 0000875045 (see all company filings)

IRS No.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-42028 | Film No.: 12597476
SIC: 2836 Biological Products, (No Diagnostic Substances)