Filing Details

Accession Number:
0001104659-21-076535
Form Type:
4
Zero Holdings:
No
Publication Time:
2021-06-03 18:58:03
Reporting Period:
2021-06-01
Accepted Time:
2021-06-03 18:58:03
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1442836 Mersana Therapeutics Inc. MRSN Pharmaceutical Preparations (2834) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1553053 M Lawrence Alleva C/O Mersana Therapeutics, Inc.
840 Memorial Drive
Cambridge MA 02139
Yes No No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2021-06-01 1,035 $14.38 2,120 No 4 P Indirect Held by Trust
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 P Indirect Held by Trust
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 0 Direct
Footnotes
  1. In a Form 4 filed on June 3, 2020, the reporting person reported direct beneficial ownership of 1,085 shares of the Company's common stock. Such shares are held directly by the Lawrence M. Alleva Revocable Trust and the nature of the reporting person's interest in such shares is indirect.
  2. The securities are held directly by the Lawrence M. Alleva Revocable Trust.