SEC Form 4 · accession 0001104659-18-071080
Mersana Therapeutics, Inc. · MRSN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Dirk Huebner
Officer — Chief Medical Officer
Period of report
Nov 30, 2018
Accepted (ET)
Dec 3, 2018 · 4:16 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001442836
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F1 | $5.30 | Nov 30, 2018 | A | 100,000 | A | — | Nov 30, 2028 | Common Stock | 100,000 | 100,000 | D |
Explanation of responses
- F1The option will vest as to 25% of the shares on the first anniversary of the grant date and in equal quarterly installments over the next three years.