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 |
| 2025-01-16 Sale |
2025-01-17 7:26 pm |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
8,637 | $0.58 | $5,009 | 480,548 (Indirect Direct) |
View |
| 2025-01-15 Sale |
2025-01-16 5:25 pm |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
6,191 | $0.63 | $3,900 | 484,685 (Indirect Direct) |
View |
| 2025-01-14 Sale |
2025-01-15 9:20 pm |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
11,534 | $0.66 | $7,612 | 519,876 (Indirect Direct) |
View |
| 2024-01-16 Sale |
2024-01-17 5:21 pm |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
29,399 | $2.71 | $79,671 | 586,160 (Indirect Direct) |
View |
| 2023-12-18 Sale |
2023-12-20 4:58 pm |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
5,000 | $75.67 | $378,350 | 15,000 (Direct) |
View |
| 2023-01-17 Sale |
2023-01-18 8:24 pm |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
17,346 | $5.74 | $99,566 | 1,159,198 (Indirect 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 |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
| 2025-01-15 Exercise |
2025-01-17 7:26 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
21,250 | $0 | 480,548 (Direct) |
View |
| 2025-01-14 Exercise |
2025-01-16 5:25 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
16,750 | $0 | 484,685 (Direct) |
View |
| 2025-01-13 Exercise |
2025-01-15 9:20 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
31,250 | $0 | 519,876 (Direct) |
View |
| 2024-06-12 Option Award |
2024-06-14 4:12 pm |
N/A 2034-06-12 |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
6,288 | $0 | 6,288 (Direct) |
View |
| 2024-06-11 Option Award |
2024-06-12 4:54 pm |
N/A 2034-06-10 |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
55,000 | $0 | 55,000 (Direct) |
View |
| 2024-01-13 Exercise |
2024-01-17 5:21 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
86,958 | $0 | 586,160 (Direct) |
View |
| 2023-12-18 Exercise |
2023-12-20 4:58 pm |
N/A N/A |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
5,000 | $9.36 | 15,000 (Direct) |
View |
| 2023-12-18 Exercise |
2023-12-20 4:58 pm |
N/A 2032-06-16 |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
5,000 | $0 | 15,000 (Direct) |
View |
| 2023-09-11 Option Award |
2023-09-13 4:02 pm |
N/A 2033-09-10 |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna Director |
16,643 | $0 | 396,744 (Direct) |
View |
| 2023-06-15 Option Award |
2023-06-16 4:19 pm |
N/A 2033-06-15 |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
15,000 | $0 | 15,000 (Direct) |
View |
| 2022-05-20 Gift |
2023-01-18 8:24 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
240,244 | $0 | 1,159,198 (Direct) |
View |
| 2023-01-14 Exercise |
2023-01-18 8:24 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
55,708 | $0 | 1,159,198 (Direct) |
View |
| 2023-01-13 Option Award |
2023-01-18 8:24 pm |
N/A 2033-01-12 |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
687,500 | $0 | 1,159,198 (Direct) |
View |
| 2022-06-16 Option Award |
2022-06-17 4:17 pm |
N/A 2032-06-16 |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
20,000 | $0 | 20,000 (Direct) |
View |
| 2022-03-30 Option Award |
2022-03-31 07:09 am |
N/A 2032-03-30 |
Nuvalent Inc. | NUVL | Protopapas Anna Director |
40,000 | $0 | 40,000 (Direct) |
View |
| 2022-01-14 Exercise |
2022-01-19 6:01 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
77,916 | $0 | 790,494 (Direct) |
View |
| 2022-01-14 Option Award |
2022-01-19 6:01 pm |
N/A 2032-01-13 |
Mersana Therapeutics Inc. | MRSN | Protopapas Anna President & CEO |
368,450 | $0 | 790,494 (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 |
| 2021-06-03 Exercise |
2021-06-07 9:34 pm |
N/A N/A |
Dicerna Pharmaceuticals Inc | DRNA | Protopapas Anna Director |
3,333 | $0 | 3,333 (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 |
| 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 |
| 2020-06-15 Option Award |
2020-06-16 8:00 pm |
N/A N/A |
Dicerna Pharmaceuticals Inc | DRNA | Protopapas Anna Director |
18,333 | $0 | 18,333 (Direct) |
View |