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Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000935836-23-000531
Filing Date
2023-07-27
Accepted
2023-07-27 17:11:29
Documents
1

Document Format Files

Seq Description Document Type Size
1 mrsn13g.htm SC 13G 45562
  Complete submission text file 0000935836-23-000531.txt   47094
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)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-90033 | Film No.: 231119386
SIC: 2834 Pharmaceutical Preparations

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)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G