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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001209191-17-042048
Filing Date
2017-06-27
Accepted
2017-06-27 20:14:52
Documents
1
Period of Report
2017-06-27

Document Format Files

Seq Description Document Type Size
1 FORM 3 SUBMISSION doc3.html 3  
1 FORM 3 SUBMISSION doc3.xml 3 9409
  Complete submission text file 0001209191-17-042048.txt   12202
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

Mailing Address 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093
Business Address 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 410-842-4000
New Enterprise Associates 14, L.P. (Reporting) CIK: 0001544328 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38129 | Film No.: 17933543

Mailing Address 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093
Business Address 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 410-842-4000
NEA Partners 14, L.P. (Reporting) CIK: 0001551531 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38129 | Film No.: 17933542

Mailing Address 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093
Business Address 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 410-842-4000
NEA 14 GP, LTD (Reporting) CIK: 0001551532 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38129 | Film No.: 17933541