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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview
Overview of all insider trading transactions in Mersana Therapeutics, Inc.. Get notifications about new insider transactions in Mersana Therapeutics, Inc. for free.
| Date | Ticker | Company | Owner | Relationship | Transaction | Code | Cost ($) | Shares | Transaction Value ($) | Total Shares | % Holdings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 138 | 0 | 138 | 0 to 138 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 138 | 0 | 138 | 0 to 138 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 138 | 0 | 138 | 0 to 138 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 138 | 0 | 138 | 0 to 138 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 4,391 | 0 | 10,260 | 5.9 K to 10.3 K (+74.82 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 4,391 | 0 | 10,260 | 5.9 K to 10.3 K (+74.82 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 5,830 | 0 | 5,869 | 39 to 5.9 K (+14,948.72 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 5,830 | 0 | 5,869 | 39 to 5.9 K (+14,948.72 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 39 | 0 | 39 | 0 to 39 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 39 | 0 | 39 | 0 to 39 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 372 | 0 | 3,594 | 3.2 K to 3.6 K (+11.55 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 372 | 0 | 3,594 | 3.2 K to 3.6 K (+11.55 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 830 | 0 | 3,222 | 2.4 K to 3.2 K (+34.70 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 830 | 0 | 3,222 | 2.4 K to 3.2 K (+34.70 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 1,075 | 0 | 3,210 | 2.1 K to 3.2 K (+50.35 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 1,075 | 0 | 3,210 | 2.1 K to 3.2 K (+50.35 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 4,391 | 0 | 10,260 | 5.9 K to 10.3 K (+74.82 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 4,391 | 0 | 10,260 | 5.9 K to 10.3 K (+74.82 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 5,830 | 0 | 5,869 | 39 to 5.9 K (+14,948.72 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 5,830 | 0 | 5,869 | 39 to 5.9 K (+14,948.72 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 39 | 0 | 39 | 0 to 39 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 39 | 0 | 39 | 0 to 39 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 496 | 0 | 1,602 | 1.1 K to 1.6 K (+44.85 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 496 | 0 | 1,602 | 1.1 K to 1.6 K (+44.85 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 1,106 | 0 | 1,106 | 0 to 1.1 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 1,106 | 0 | 1,106 | 0 to 1.1 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 4,391 | 0 | 10,260 | 5.9 K to 10.3 K (+74.82 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 4,391 | 0 | 10,260 | 5.9 K to 10.3 K (+74.82 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 5,830 | 0 | 5,869 | 39 to 5.9 K (+14,948.72 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 5,830 | 0 | 5,869 | 39 to 5.9 K (+14,948.72 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 39 | 0 | 39 | 0 to 39 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 39 | 0 | 39 | 0 to 39 |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 10,000 | 0 | 0 | 10 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 10,000 | 0 | 10,000 | 0 to 10 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Sep 16 2020 | MRSN | Mersana Therapeuti ... | New Enterprise Associates 14, ... | 10% Owner | Sell | J | 0.00 | 2,000,000 | 0 | 5,959,520 | 8 M to 6 M (-25.13 %) |
| Jul 06 2020 | MRSN | Mersana Therapeuti ... | Mandelia Ashish | VP, Controller | Sell | S | 22.49 | 3,383 | 76,084 | 0 | 3.4 K to 0 (-100.00 %) |
| Jul 06 2020 | MRSN | Mersana Therapeuti ... | Mandelia Ashish | VP, Controller | Buy | P | 4.87 | 3,383 | 16,475 | 3,383 | 0 to 3.4 K |
| Jun 29 2020 | MRSN | Mersana Therapeuti ... | MOTT DAVID M | Director | Option Exercise | A | 22.90 | 9,200 | 210,680 | 9,200 | |
| Jun 29 2020 | MRSN | Mersana Therapeuti ... | Hege Kristen | Director | Option Exercise | A | 22.90 | 9,200 | 210,680 | 9,200 | |
| Jun 29 2020 | MRSN | Mersana Therapeuti ... | Hack Andrew A. F. | Director | Option Exercise | A | 22.90 | 9,200 | 210,680 | 9,200 | |
| Jun 29 2020 | MRSN | Mersana Therapeuti ... | Alleva Lawrence M | Director | Option Exercise | A | 22.90 | 9,200 | 210,680 | 9,200 | |
| Jun 29 2020 | MRSN | Mersana Therapeuti ... | Dere Willard H | Director | Option Exercise | A | 22.90 | 9,200 | 210,680 | 9,200 | |
| Jun 24 2020 | MRSN | Mersana Therapeuti ... | Huber Martin H. Jr. | Director | Option Exercise | A | 8.57 | 48,096 | 412,183 | 48,096 | |
| Jun 03 2020 | MRSN | Mersana Therapeuti ... | Alleva Lawrence M | Director | Buy | P | 22.94 | 700 | 16,058 | 1,085 | 385 to 1.1 K (+181.82 %) |
| Jun 03 2020 | MRSN | Mersana Therapeuti ... | Alleva Lawrence M | Director | Buy | P | 22.97 | 385 | 8,843 | 385 | 0 to 385 |
| Apr 14 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | S | 9.22 | 274 | 2,526 | 0 | 274 to 0 (-100.00 %) |
| Apr 14 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | S | 9.22 | 274 | 2,526 | 0 | 274 to 0 (-100.00 %) |
| Apr 14 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | S | 8.98 | 1,650 | 14,812 | 0 | 1.7 K to 0 (-100.00 %) |
| Apr 14 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | S | 8.58 | 3,190 | 27,358 | 0 | 3.2 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | S | 8.50 | 20,914 | 177,775 | 0 | 20.9 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 685 | 0 | 1,650 | 965 to 1.7 K (+70.98 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 8,783 | 0 | 20,914 | 12.1 K to 20.9 K (+72.40 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 965 | 0 | 965 | 0 to 965 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 274 | 0 | 274 | 0 to 274 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 274 | 0 | 274 | 0 to 274 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 12,054 | 0 | 12,131 | 77 to 12.1 K (+15,654.55 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 77 | 0 | 77 | 0 to 77 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 40,000 | 0 | 0 | 40 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Buy | J | 0.00 | 40,000 | 0 | 40,000 | 0 to 40 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | SANDELL SCOTT D | 10% Owner | Sell | J | 0.00 | 4,000,000 | 0 | 7,959,520 | 12 M to 8 M (-33.45 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Sell | J | 0.00 | 40,000 | 0 | 0 | 40 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Buy | J | 0.00 | 40,000 | 0 | 40,000 | 0 to 40 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | NEA Partners 14, L.P. | 10% Owner | Sell | J | 0.00 | 4,000,000 | 0 | 7,959,520 | 12 M to 8 M (-33.45 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | New Enterprise Associates 14, ... | 10% Owner | Sell | J | 0.00 | 4,000,000 | 0 | 7,959,520 | 12 M to 8 M (-33.45 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | MOTT DAVID M | Director | Buy | J | 0.00 | 993 | 0 | 3,190 | 2.2 K to 3.2 K (+45.20 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | MOTT DAVID M | Director | Buy | J | 0.00 | 2,197 | 0 | 2,197 | 0 to 2.2 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 745 | 0 | 2,392 | 1.6 K to 2.4 K (+45.23 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 1,647 | 0 | 1,647 | 0 to 1.6 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 40,000 | 0 | 0 | 40 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Buy | J | 0.00 | 40,000 | 0 | 40,000 | 0 to 40 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | KERINS PATRICK J | 10% Owner | Sell | J | 0.00 | 4,000,000 | 0 | 7,959,520 | 12 M to 8 M (-33.45 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | S | 8.50 | 20,914 | 177,775 | 0 | 20.9 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 8,783 | 0 | 20,914 | 12.1 K to 20.9 K (+72.40 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 2,135 | 0 | 2,135 | 0 to 2.1 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 12,054 | 0 | 12,131 | 77 to 12.1 K (+15,654.55 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 77 | 0 | 77 | 0 to 77 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 40,000 | 0 | 0 | 40 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Buy | J | 0.00 | 40,000 | 0 | 40,000 | 0 to 40 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Florence Anthony A. Jr. | 10% Owner | Sell | J | 0.00 | 4,000,000 | 0 | 7,959,520 | 12 M to 8 M (-33.45 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | S | 8.50 | 20,914 | 177,775 | 0 | 20.9 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 993 | 0 | 3,190 | 2.2 K to 3.2 K (+45.20 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 8,783 | 0 | 20,914 | 12.1 K to 20.9 K (+72.40 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 2,197 | 0 | 2,197 | 0 to 2.2 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 12,054 | 0 | 12,131 | 77 to 12.1 K (+15,654.55 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 77 | 0 | 77 | 0 to 77 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 40,000 | 0 | 0 | 40 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Buy | J | 0.00 | 40,000 | 0 | 40,000 | 0 to 40 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | BASKETT FOREST | 10% Owner | Sell | J | 0.00 | 4,000,000 | 0 | 7,959,520 | 12 M to 8 M (-33.45 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | New Enterprise Associates 14, ... | 10% Owner | Option Exercise | X | 0.05 | 70,593 | 3,530 | 0 | |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | New Enterprise Associates 14, ... | 10% Owner | Sell | S | 2.91 | 1,211 | 3,524 | 11,959,520 | 12 M to 12 M (-0.01 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | New Enterprise Associates 14, ... | 10% Owner | Buy | X | 0.05 | 70,593 | 3,530 | 11,960,731 | 11.9 M to 12 M (+0.59 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Buy | J | 0.00 | 497 | 0 | 497 | 0 to 497 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Buy | J | 0.00 | 497 | 0 | 497 | 0 to 497 |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Buy | J | 0.00 | 1,146 | 0 | 1,146 | 0 to 1.1 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Buy | J | 0.00 | 1,146 | 0 | 1,146 | 0 to 1.1 K |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Sell | J | 0.00 | 20,000 | 0 | 0 | 20 K to 0 (-100.00 %) |
| Apr 13 2020 | MRSN | Mersana Therapeuti ... | Sonsini Peter W. | 10% Owner | Buy | J | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |