Filing Details
- Accession Number:
- 0001104659-21-084647
- Form Type:
- 4
- Zero Holdings:
- No
- Publication Time:
- 2021-06-23 16:30:51
- Reporting Period:
- 2021-06-21
- Accepted Time:
- 2021-06-23 16:30:51
- 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 |
---|---|---|---|---|---|---|---|
1709775 | B Timothy Lowinger | C/O Mersana Therapeutics, Inc. 840 Memorial Drive Cambridge MA 02139 | Chief Science & Tech. Officer | No | Yes | 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 | 2021-06-21 | 2 | $3.51 | 31,446 | No | 4 | M | Direct | |
Common Stock | Disposition | 2021-06-21 | 2 | $13.78 | 31,444 | No | 4 | S | Direct | |
Common Stock | Acquisiton | 2021-06-21 | 2,218 | $6.16 | 33,662 | No | 4 | M | Direct | |
Common Stock | Disposition | 2021-06-21 | 2,218 | $13.78 | 31,444 | No | 4 | S | Direct |
Equity Swap Involved | Form Type | Code | Nature of Ownership | Explanation |
---|---|---|---|---|
No | 4 | M | Direct | |
No | 4 | S | Direct | |
No | 4 | M | Direct | |
No | 4 | S | Direct |
Reported Derivative Transactions
Sec. Name | Sec. Type | Acquisiton - Disposition | Date | Amount | Price | Amount - 2 | Price - 2 |
---|---|---|---|---|---|---|---|
Common Stock | Stock Option (right to buy) | Disposition | 2021-06-21 | 2 | $0.00 | 2 | $3.51 |
Common Stock | Stock Option (right to buy) | Disposition | 2021-06-21 | 2,218 | $0.00 | 2,218 | $6.16 |
Remaning Holdings | Exercise Date | Expiration Date | Equity Swap Involved | Transaction Form Type | Transaction Code | Nature of Ownership |
---|---|---|---|---|---|---|
12,180 | 2029-01-22 | No | 4 | M | Direct | |
81,647 | 2030-01-14 | No | 4 | M | Direct |
Footnotes
- Transaction effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2020.
- The option vests in equal quarterly installments over the first four years after the vesting commencement date, January 23, 2019.
- The option vests in equal quarterly installments over the first four years after the vesting commencement date, January 15, 2020.