Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000935836-24-000773
Filing Date
2024-12-23
Accepted
2024-12-23 19:50:22
Documents
2

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G/A  
1 primary_doc.xml SCHEDULE 13G/A 10920
2 mrsa13ga1.htm EX-99.1 AGREEMENT 3921
  Complete submission text file 0000935836-24-000773.txt   16560
Mailing Address 840 MEMORIAL DRIVE CAMBRIDGE MA 02139
Business Address 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 617-498-0020
Mersana Therapeutics, Inc. (Subject) CIK: 0001442836 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A | Act: 34 | File No.: 005-90033 | Film No.: 241575352
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)

Mailing Address 357 TEHAMA STREET #3 SAN FRANCISCO CA 94103
Business Address 357 TEHAMA STREET #3 SAN FRANCISCO CA 94103 415-448-6534
EcoR1 Capital, LLC (Filed by) CIK: 0001587114 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A