Filing Details
- Accession Number:
- 0001104659-21-041007
- Form Type:
- 4
- Zero Holdings:
- No
- Publication Time:
- 2021-03-24 17:00:56
- Reporting Period:
- 2021-03-22
- Accepted Time:
- 2021-03-24 17:00:56
- 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 | 2021-03-22 | 1,874 | $3.51 | 33,318 | No | 4 | M | Direct | |
| Common Stock | Disposition | 2021-03-22 | 1,874 | $17.50 | 31,444 | No | 4 | S | Direct | |
| Common Stock | Acquisiton | 2021-03-22 | 2,227 | $6.16 | 33,671 | No | 4 | M | Direct | |
| Common Stock | Disposition | 2021-03-22 | 2,227 | $17.50 | 31,444 | No | 4 | S | Direct | |
| Common Stock | Acquisiton | 2021-03-22 | 1,875 | $3.51 | 33,319 | No | 4 | M | Direct | |
| Common Stock | Disposition | 2021-03-22 | 1,875 | $17.50 | 31,444 | No | 4 | S | Direct | |
| Common Stock | Acquisiton | 2021-03-22 | 2,227 | $6.16 | 33,671 | No | 4 | M | Direct | |
| Common Stock | Disposition | 2021-03-22 | 2,227 | $17.50 | 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 | |
| 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 | 2021-03-22 | 1,874 | $0.00 | 1,874 | $3.51 |
| Common Stock | Stock Option (right to buy) | Disposition | 2021-03-22 | 2,227 | $0.00 | 2,227 | $6.16 |
| Common Stock | Stock Option (right to buy) | Disposition | 2021-03-22 | 1,875 | $0.00 | 1,875 | $3.51 |
| Common Stock | Stock Option (right to buy) | Disposition | 2021-03-22 | 2,227 | $0.00 | 2,227 | $6.16 |
| Remaning Holdings | Exercise Date | Expiration Date | Equity Swap Involved | Transaction Form Type | Transaction Code | Nature of Ownership |
|---|---|---|---|---|---|---|
| 17,807 | 2029-01-22 | No | 4 | M | Direct | |
| 90,546 | 2030-01-14 | No | 4 | M | Direct | |
| 15,932 | 2029-01-22 | No | 4 | M | Direct | |
| 88,319 | 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.
- This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.25 to $17.50, inclusive. The reporting person undertakes to provide to Mersana Therapeutics, Inc., any other security holder of Mersana Therapeutics Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
- 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.
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