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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-20-048405
Filing Date
2020-04-20
Accepted
2020-04-20 06:09:30
Documents
5
Effectiveness Date
2020-04-20

Document Format Files

Seq Description Document Type Size
1 DEFA14A a20-2108_3defa14a.htm DEFA14A 32283
2 GRAPHIC g21083bci001.gif GRAPHIC 48526
3 GRAPHIC g21083bci002.gif GRAPHIC 101553
4 GRAPHIC g21083bci003.gif GRAPHIC 16128
5 GRAPHIC g21083bci004.gif GRAPHIC 4360
  Complete submission text file 0001104659-20-048405.txt   268566
Mailing Address 840 MEMORIAL DRIVE CAMBRIDGE MA 02139
Business Address 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 617-498-0020
Mersana Therapeutics, Inc. (Filer) CIK: 0001442836 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-38129 | Film No.: 20801165
SIC: 2834 Pharmaceutical Preparations