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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000315066-11-003336
Filing Date
2011-04-08
Accepted
2011-04-08 16:09:33
Documents
1
Period of Report
2011-03-29

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT primary_doc.html 3  
1 PRIMARY DOCUMENT primary_doc.xml 3 7419
  Complete submission text file 0000315066-11-003336.txt   9573
Mailing Address 82 DEVONSHIRE STREET BOSTON MA 02109
Business Address 82 DEVONSHIRE ST BOSTON MA 02109 6175706339
FMR LLC (Reporting) CIK: 0000315066 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-34620 | Film No.: 11749613

Mailing Address P.O. BOX H.M. 670 HAMILTON D0 00000
Business Address P.O. BOX H.M. 670 HAMILTON D0 00000 6175637100
FIL Ltd (Reporting) CIK: 0000318989 (see all company filings)

Fiscal Year End: 0630
Type: 3 | Act: 34 | File No.: 001-34620 | Film No.: 11749614

Mailing Address 301 BINNEY STREET CAMBRIDGE MA 02142
Business Address 301 BINNEY STREET CAMBRIDGE MA 02142 617-621-7722
IRONWOOD PHARMACEUTICALS INC (Issuer) CIK: 0001446847 (see all company filings)

IRS No.: 043404176
SIC: 2834 Pharmaceutical Preparations