SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001273087-23-000038
Filing Date
2023-01-19
Accepted
2023-01-19 16:06:12
Documents
1
Group Members
ISRAEL A. ENGLANDERMILLENNIUM GROUP MANAGEMENT LLCMILLENNIUM MANAGEMENT LLC

Document Format Files

Seq Description Document Type Size
1 MRSN_SC13GA1_2023.htm SC 13G/A 79695
  Complete submission text file 0001273087-23-000038.txt   81555
Mailing Address 399 PARK AVENUE NEW YORK NY 10022
Business Address 399 PARK AVENUE NEW YORK NY 10022 (212) 841-4100
MILLENNIUM MANAGEMENT LLC (Filed by) CIK: 0001273087 (see all company filings)

IRS No.: 133804139 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A

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/A | Act: 34 | File No.: 005-90033 | Film No.: 23537495
SIC: 2834 Pharmaceutical Preparations