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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000315066-17-002493
Filing Date
2017-06-27
Accepted
2017-06-27 21:01:32
Documents
1
Period of Report
2017-06-27

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT primary_doc.html 3  
1 PRIMARY DOCUMENT primary_doc.xml 3 8807
  Complete submission text file 0000315066-17-002493.txt   10472
Mailing Address 245 SUMMER STREET BOSTON MA 02210
Business Address 245 SUMMER STREET BOSTON MA 02210 6175706339
FMR LLC (Reporting) CIK: 0000315066 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38129 | Film No.: 17933593

Mailing Address 840 MEMORIAL DRIVE CAMBRIDGE MA 02139
Business Address 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 617-498-0020
Mersana Therapeutics, Inc. (Issuer) CIK: 0001442836 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations