Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-25-040474
Filing Date
2025-04-29
Accepted
2025-04-29 06:05:04
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A tm252376d5_defa14a.htm DEFA14A 9585
2 GRAPHIC tm252376d5_defa14aimg001.jpg GRAPHIC 160532
3 GRAPHIC tm252376d5_defa14aimg002.jpg GRAPHIC 140961
  Complete submission text file 0001104659-25-040474.txt   426255
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)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-38129 | Film No.: 25882469
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)