Filing Details
- Accession Number:
- 0001104659-25-004183
- Form Type:
- 4
- Zero Holdings:
- No
- Publication Time:
- 2025-01-16 17:24:40
- Reporting Period:
- 2025-01-14
- Accepted Time:
- 2025-01-16 17:24:40
- 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 | Svp, Chief Sci.&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 | 2025-01-14 | 4,792 | $0.00 | 247,724 | No | 4 | M | Direct | |
| Common Stock | Disposition | 2025-01-15 | 1,794 | $0.63 | 245,930 | No | 4 | S | Direct |
| Equity Swap Involved | Form Type | Code | Nature of Ownership | Explanation |
|---|---|---|---|---|
| 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 | Restricted Stock Unit | Disposition | 2025-01-14 | 4,792 | $0.00 | 4,792 | $0.00 |
| Remaning Holdings | Exercise Date | Expiration Date | Equity Swap Involved | Transaction Form Type | Transaction Code | Nature of Ownership |
|---|---|---|---|---|---|---|
| 4,791 | No | 4 | M | Direct |
Footnotes
- Represents shares of common stock received upon vesting of a portion of the restricted stock units ("RSUs") awarded to the Reporting Person on January 14, 2022.
- Represents the sale of shares of common stock to satisfy the Reporting Person's tax withholding obligations in connection with the service-based vesting and settlement of the RSUs pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 10, 2023. The sale was effected through an automatic "sell to cover" transaction that did not represent a discretionary trade by the Reporting Person.
- Each RSU represents the contingent right to receive one share of common stock of the Issuer.
- 25% of the total number of RSUs granted vested on January 14, 2025, and the remainder shall vest on January 14, 2026.
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