Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2021-12-30 Purchase |
2022-01-04 6:16 pm |
Mersana Therapeutics Inc. | MRSN | Hack Andrew A. F. Director |
815,000 | $6.15 | $5,012,250 | 5,385,667 (Indirect) |
View |
2021-12-29 Purchase |
2022-01-03 6:28 pm |
Mersana Therapeutics Inc. | MRSN | Hack Andrew A. F. Director |
875,000 | $5.75 | $5,031,250 | 4,570,667 (Indirect) |
View |
2021-12-01 Sale |
2021-12-02 5:00 pm |
Mersana Therapeutics Inc. | MRSN | Yang Arvin Chief Medical Officer |
5,527 | $6.81 | $37,639 | 31,473 (Direct) |
View |
2021-08-20 Sale |
2021-08-24 4:31 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,216 | $11.01 | $24,398 | 152,368 (Direct) |
View |
2021-07-20 Sale |
2021-07-22 4:32 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $12.11 | $26,969 | 154,584 (Direct) |
View |
2021-07-16 Sale |
2021-07-19 8:50 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
16,271 | $12.24 | $199,076 | 75,173 (Direct) |
View |
2021-07-16 Sale |
2021-07-19 8:50 pm |
Mersana Therapeutics Inc. | MRSN | Kaufman Michael J. Chief Manufacturing Officer |
12,088 | $12.24 | $147,897 | 32,622 (Direct) |
View |
2021-07-16 Sale |
2021-07-19 8:49 pm |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
41,944 | $12.24 | $513,186 | 282,978 (Direct) |
View |
2021-07-01 Sale |
2021-07-02 4:32 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B CS & Technology Officer |
1,886 | $13.6 | $25,650 | 123,385 (Direct) |
View |
2021-07-01 Sale |
2021-07-02 4:31 pm |
Mersana Therapeutics Inc. | MRSN | Mandelia Ashish VP, Controller |
942 | $13.6 | $12,811 | 0 (Direct) |
View |
2021-06-21 Sale |
2021-06-23 4:30 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,220 | $13.78 | $30,592 | 125,271 (Direct) |
View |
2021-06-01 Purchase |
2021-06-03 6:58 pm |
Mersana Therapeutics Inc. | MRSN | Alleva Lawrence M Director |
1,035 | $14.38 | $14,883 | 2,120 (Indirect Direct) |
View |
2021-05-20 Sale |
2021-05-24 4:30 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
4,102 | $14.1 | $57,838 | 127,491 (Direct) |
View |
2021-04-20 Sale |
2021-04-22 4:16 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
4,102 | $15.91 | $65,263 | 131,593 (Direct) |
View |
2021-03-22 Sale |
2021-03-24 5:00 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
8,203 | $17.5 | $143,553 | 244,048 (Direct) |
View |
2021-02-22 Sale |
2021-02-24 5:00 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
8,203 | $20.01 | $164,142 | 260,454 (Direct) |
View |
2021-01-20 Sale |
2021-01-22 5:00 pm |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
8,203 | $21.54 | $176,693 | 276,860 (Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2022-01-03 Option Award |
2022-01-05 5:04 pm |
N/A 2032-01-02 |
Mersana Therapeutics Inc. | MRSN | Hege Kristen Director |
10,416 | $0 | 10,416 (Direct) |
View |
2022-01-03 Option Award |
2022-01-05 5:04 pm |
N/A 2032-01-02 |
Mersana Therapeutics Inc. | MRSN | Alleva Lawrence M Director |
13,657 | $0 | 13,657 (Direct) |
View |
2022-01-03 Option Award |
2022-01-05 5:02 pm |
N/A 2032-01-02 |
Mersana Therapeutics Inc. | MRSN | Diaz Allene M. Director |
10,416 | $0 | 10,416 (Direct) |
View |
2022-01-03 Option Award |
2022-01-05 5:01 pm |
N/A 2032-01-02 |
Mersana Therapeutics Inc. | MRSN | Dere Willard H Director |
12,847 | $0 | 12,847 (Direct) |
View |
2021-12-20 Exercise |
2021-12-20 5:01 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
45,593 | $1.4 | 120,766 (Direct) |
View |
2021-12-20 Exercise |
2021-12-20 5:01 pm |
N/A 2022-10-02 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
45,593 | $0 | 120,766 (Direct) |
View |
2021-11-30 Exercise |
2021-12-02 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Yang Arvin Chief Medical Officer |
18,500 | $0 | 31,473 (Direct) |
View |
2021-08-20 Exercise |
2021-08-24 4:31 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,216 | $6.16 | 152,368 (Direct) |
View |
2021-08-20 Exercise |
2021-08-24 4:31 pm |
N/A 2030-01-14 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,216 | $0 | 152,368 (Direct) |
View |
2021-08-16 Option Award |
2021-08-18 4:32 pm |
N/A 2031-08-15 |
Mersana Therapeutics Inc. | MRSN | MISRA TUSHAR Chief Manufacturing Officer |
137,500 | $0 | 137,500 (Direct) |
View |
2021-07-20 Exercise |
2021-07-22 4:32 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $6.16 | 154,584 (Direct) |
View |
2021-07-20 Exercise |
2021-07-22 4:32 pm |
N/A 2030-01-14 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $0 | 154,584 (Direct) |
View |
2021-07-15 Exercise |
2021-07-19 8:50 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
40,000 | $0 | 75,173 (Direct) |
View |
2021-07-15 Exercise |
2021-07-19 8:50 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Kaufman Michael J. Chief Manufacturing Officer |
40,000 | $0 | 32,622 (Direct) |
View |
2021-07-15 Exercise |
2021-07-19 8:49 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
100,000 | $0 | 282,978 (Direct) |
View |
2021-07-08 Exercise |
2021-07-09 5:25 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B CS & Technology Officer |
20,000 | $1.4 | 97,037 (Direct) |
View |
2021-07-08 Exercise |
2021-07-09 5:25 pm |
N/A 2022-10-01 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B CS & Technology Officer |
20,000 | $0 | 97,037 (Direct) |
View |
2021-07-01 Exercise |
2021-07-02 4:32 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B CS & Technology Officer |
9 | $6.16 | 123,385 (Direct) |
View |
2021-07-01 Exercise |
2021-07-02 4:32 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B CS & Technology Officer |
1,886 | $0 | 123,385 (Direct) |
View |
2021-07-01 Exercise |
2021-07-02 4:32 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B CS & Technology Officer |
1,877 | $3.51 | 123,385 (Direct) |
View |
2021-06-21 Exercise |
2021-06-23 4:30 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,218 | $6.16 | 125,271 (Direct) |
View |
2021-06-21 Exercise |
2021-06-23 4:30 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,220 | $0 | 125,271 (Direct) |
View |
2021-06-21 Exercise |
2021-06-23 4:30 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2 | $3.51 | 125,271 (Direct) |
View |
2021-06-11 Option Award |
2021-06-15 6:35 pm |
N/A 2031-06-10 |
Mersana Therapeutics Inc. | MRSN | Hack Andrew A. F. Director |
25,050 | $0 | 25,050 (Direct) |
View |
2021-06-11 Option Award |
2021-06-15 6:03 pm |
N/A 2031-06-10 |
Mersana Therapeutics Inc. | MRSN | Alleva Lawrence M Director |
25,050 | $0 | 25,050 (Direct) |
View |
2021-06-11 Option Award |
2021-06-15 6:03 pm |
N/A 2031-06-10 |
Mersana Therapeutics Inc. | MRSN | Dere Willard H Director |
25,050 | $0 | 25,050 (Direct) |
View |
2021-06-11 Option Award |
2021-06-15 6:02 pm |
N/A 2031-06-10 |
Mersana Therapeutics Inc. | MRSN | Hege Kristen Director |
25,050 | $0 | 25,050 (Direct) |
View |
2021-06-11 Option Award |
2021-06-15 6:02 pm |
N/A 2031-06-10 |
Mersana Therapeutics Inc. | MRSN | MOTT DAVID M Director |
25,050 | $0 | 25,050 (Direct) |
View |
2021-06-11 Option Award |
2021-06-15 6:01 pm |
N/A 2031-06-10 |
Mersana Therapeutics Inc. | MRSN | Huber Martin H. Jr. Director |
25,050 | $0 | 25,050 (Direct) |
View |
2021-05-20 Exercise |
2021-05-24 4:30 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $6.16 | 127,491 (Direct) |
View |
2021-05-20 Exercise |
2021-05-24 4:30 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
4,102 | $0 | 127,491 (Direct) |
View |
2021-05-20 Exercise |
2021-05-24 4:30 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
1,875 | $3.51 | 127,491 (Direct) |
View |
2021-04-26 Option Award |
2021-04-28 4:32 pm |
N/A 2031-04-25 |
Mersana Therapeutics Inc. | MRSN | Carvajal Alejandra Chief Legal Officer |
139,000 | $0 | 137,500 (Direct) |
View |
2021-04-20 Exercise |
2021-04-22 4:16 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $6.16 | 131,593 (Direct) |
View |
2021-04-20 Exercise |
2021-04-22 4:16 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
4,102 | $0 | 131,593 (Direct) |
View |
2021-04-20 Exercise |
2021-04-22 4:16 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
1,875 | $3.51 | 131,593 (Direct) |
View |
2021-03-22 Exercise |
2021-03-24 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $6.16 | 244,048 (Direct) |
View |
2021-03-22 Exercise |
2021-03-24 5:00 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
8,203 | $0 | 244,048 (Direct) |
View |
2021-03-22 Exercise |
2021-03-24 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
3,749 | $3.51 | 244,048 (Direct) |
View |
2021-03-09 Option Award |
2021-03-11 5:01 pm |
N/A 2031-03-08 |
Mersana Therapeutics Inc. | MRSN | Diaz Allene M. Director |
39,275 | $0 | 39,275 (Direct) |
View |
2021-02-22 Exercise |
2021-02-24 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $6.16 | 260,454 (Direct) |
View |
2021-02-22 Exercise |
2021-02-24 5:00 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
8,203 | $0 | 260,454 (Direct) |
View |
2021-02-22 Exercise |
2021-02-24 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
3,749 | $3.51 | 260,454 (Direct) |
View |
2021-01-20 Exercise |
2021-01-22 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,227 | $6.16 | 276,860 (Direct) |
View |
2021-01-20 Exercise |
2021-01-22 5:00 pm |
N/A 2029-01-22 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
8,203 | $0 | 276,860 (Direct) |
View |
2021-01-20 Exercise |
2021-01-22 5:00 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
3,749 | $3.51 | 276,860 (Direct) |
View |
2021-01-15 Option Award |
2021-01-20 7:05 pm |
N/A 2031-01-15 |
Mersana Therapeutics Inc. | MRSN | Hack Andrew A. F. Director |
2,971 | $0 | 2,971 (Direct) |
View |
2021-01-15 Option Award |
2021-01-20 7:05 pm |
N/A 2031-01-15 |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
160,417 | $0 | 215,611 (Direct) |
View |
2021-01-15 Tax Withholding |
2021-01-20 7:05 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
2,324 | $21.09 | 215,611 (Direct) |
View |
2021-01-15 Exercise |
2021-01-20 7:05 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Lowinger Timothy B Chief Science & Tech. Officer |
7,917 | $0 | 215,611 (Direct) |
View |
2021-01-15 Option Award |
2021-01-20 7:04 pm |
N/A 2031-01-15 |
Mersana Therapeutics Inc. | MRSN | Kaufman Michael J. Sr VP, Chemistry, Man.&Control |
137,500 | $0 | 162,210 (Direct) |
View |
2021-01-15 Tax Withholding |
2021-01-20 7:04 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Kaufman Michael J. Sr VP, Chemistry, Man.&Control |
1,957 | $21.09 | 162,210 (Direct) |
View |
2021-01-15 Exercise |
2021-01-20 7:04 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Kaufman Michael J. Sr VP, Chemistry, Man.&Control |
6,667 | $0 | 162,210 (Direct) |
View |
2021-01-15 Option Award |
2021-01-20 7:04 pm |
N/A 2031-01-15 |
Mersana Therapeutics Inc. | MRSN | DeSchuytner Brian Sr. VP., FIN, Product Strategy |
137,500 | $0 | 155,797 (Direct) |
View |
2021-01-15 Tax Withholding |
2021-01-20 7:04 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | DeSchuytner Brian Sr. VP., FIN, Product Strategy |
1,162 | $21.09 | 155,797 (Direct) |
View |
2021-01-15 Exercise |
2021-01-20 7:04 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | DeSchuytner Brian Sr. VP., FIN, Product Strategy |
3,959 | $0 | 155,797 (Direct) |
View |
2021-01-15 Option Award |
2021-01-20 7:04 pm |
N/A 2031-01-15 |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
467,500 | $0 | 745,546 (Direct) |
View |
2021-01-15 Tax Withholding |
2021-01-20 7:04 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
5,198 | $21.09 | 745,546 (Direct) |
View |
2021-01-15 Exercise |
2021-01-20 7:04 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
17,709 | $0 | 745,546 (Direct) |
View |