Mersana Therapeutics, Inc. Forms 3, 4 and 5: Preferred Stock
Statements of beneficial ownership filed with the SEC by officers, directors and 10% owners: 66 rows, 66 shown. Transaction codes are the SEC's. Shares and prices are split-adjusted; the as-filed figure is underneath.
- 2017-07-03: Reporting owner Viswanathan Ravi; Form 4; Security Series A-1 Preferred Stock; Transaction C Conversion of derivative security.
- 2017-07-03: Reporting owner Viswanathan Ravi; Form 4; Security Series B-1 Preferred Stock; Transaction C Conversion of derivative security.
- 2017-07-03: Reporting owner Viswanathan Ravi; Form 4; Security Series C-1 Preferred Stock; Transaction C Conversion of derivative security.
- 2017-07-03: Reporting owner Sonsini Peter W.; Form 4; Security Series A-1 Preferred Stock; Transaction C Conversion of derivative security.
| Transaction date | Reporting owner | Form | Security | Transaction | Shares | Price | Price that day | Filing |
|---|---|---|---|---|---|---|---|---|
| 2017-07-03 | Viswanathan Ravi 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Viswanathan Ravi 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Viswanathan Ravi 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Sonsini Peter W. 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Sonsini Peter W. 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Sonsini Peter W. 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | SANDELL SCOTT D 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | SANDELL SCOTT D 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | SANDELL SCOTT D 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | MOTT DAVID M Director, 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | MOTT DAVID M Director, 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | MOTT DAVID M Director, 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Protopapas Anna Director, Officer (President and CEO) | 4 | Series B-1 Convertible Preferred Stock Derivative · Indirect · By Kinney/Protopapas Family Irrevocable Trust | C Conversion of derivative security | −325,189 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | KERINS PATRICK J 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | KERINS PATRICK J 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | KERINS PATRICK J 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Florence Anthony A. Jr. 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Florence Anthony A. Jr. 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | Florence Anthony A. Jr. 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BASKETT FOREST 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BASKETT FOREST 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BASKETT FOREST 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BARRIS PETER J 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BARRIS PETER J 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BARRIS PETER J 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BARRETT M JAMES 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BARRETT M JAMES 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | BARRETT M JAMES 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Indirect · See Note 3 | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | NEA 14 GP, LTD | NEA Partners 14, L.P. | New Enterprise Associates 14, L.P. 10% Owner | 10% Owner | 10% Owner | 4 | Series A-1 Preferred Stock Derivative · Direct | C Conversion of derivative security | −11,931,173 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | NEA 14 GP, LTD | NEA Partners 14, L.P. | New Enterprise Associates 14, L.P. 10% Owner | 10% Owner | 10% Owner | 4 | Series B-1 Preferred Stock Derivative · Direct | C Conversion of derivative security | −18,001,419 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | NEA 14 GP, LTD | NEA Partners 14, L.P. | New Enterprise Associates 14, L.P. 10% Owner | 10% Owner | 10% Owner | 4 | Series C-1 Preferred Stock Derivative · Direct | C Conversion of derivative security | −2,216,626 0 owned after | $0.00 | 2017-07-06 | |
| 2017-07-03 | FMR LLC Other (See Remark 1) | 4 | Series A-1 Convertible Preferred Stock Derivative · Indirect · F-Prime Capital Partners Healthcare Fund III LP | C Conversion of derivative security | −718,375 0 owned after | no price filed | 2017-07-06 | |
| 2017-07-03 | FMR LLC Other (See Remark 1) | 4 | Series B-1 Convertible Preferred Stock Derivative · Indirect · F-Prime Capital Partners Healthcare Fund III LP | C Conversion of derivative security | −611,606 0 owned after | no price filed | 2017-07-06 | |
| 2017-06-27 holding as of filing | FMR LLC | 3 | Series A-1 Convertible Preferred Stock Derivative · Indirect · F-Prime Capital Partners Healthcare Fund III LP | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | FMR LLC | 3 | Series B-1 Convertible Preferred Stock Derivative · Indirect · F-Prime Capital Partners Healthcare Fund III LP | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Viswanathan Ravi 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Viswanathan Ravi 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Viswanathan Ravi 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Sonsini Peter W. 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Sonsini Peter W. 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Sonsini Peter W. 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | SANDELL SCOTT D 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | SANDELL SCOTT D 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | SANDELL SCOTT D 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | MOTT DAVID M Director, 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | MOTT DAVID M Director, 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | MOTT DAVID M Director, 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | KERINS PATRICK J 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | KERINS PATRICK J 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | KERINS PATRICK J 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Florence Anthony A. Jr. 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Florence Anthony A. Jr. 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Florence Anthony A. Jr. 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BASKETT FOREST 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BASKETT FOREST 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BASKETT FOREST 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BARRIS PETER J 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BARRIS PETER J 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BARRIS PETER J 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BARRETT M JAMES 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BARRETT M JAMES 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | BARRETT M JAMES 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Indirect · See Note 2 | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | NEA Partners 14, L.P. | NEA 14 GP, LTD | New Enterprise Associates 14, L.P. 10% Owner | 10% Owner | 10% Owner | 3 | Series A-1 Preferred Stock Derivative · Direct | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | NEA Partners 14, L.P. | NEA 14 GP, LTD | New Enterprise Associates 14, L.P. 10% Owner | 10% Owner | 10% Owner | 3 | Series B-1 Preferred Stock Derivative · Direct | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | NEA Partners 14, L.P. | NEA 14 GP, LTD | New Enterprise Associates 14, L.P. 10% Owner | 10% Owner | 10% Owner | 3 | Series C-1 Preferred Stock Derivative · Direct | Holding | no price filed | 2017-06-27 | ||
| 2017-06-27 holding as of filing | Protopapas Anna Director, Officer (President and CEO) | 3 | Series B-1 Convertible Preferred Stock Derivative · Indirect · (m) | Holding | no price filed | 2017-06-27 |