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 |
2023-01-17 Sale |
2023-01-18 8:29 pm |
Mersana Therapeutics Inc. | MRSN | Yang Arvin SVP, Chief Medical Officer |
2,209 | $5.74 | $12,680 | 317,903 (Direct) |
View |
2022-12-01 Sale |
2022-12-02 4:01 pm |
Mersana Therapeutics Inc. | MRSN | Yang Arvin Chief Medical Officer |
5,527 | $6.59 | $36,423 | 25,946 (Direct) |
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 |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2023-01-13 Option Award |
2023-01-18 8:29 pm |
N/A 2033-01-12 |
Mersana Therapeutics Inc. | MRSN | Yang Arvin SVP, Chief Medical Officer |
265,833 | $0 | 317,903 (Direct) |
View |
2023-01-14 Exercise |
2023-01-18 8:29 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Yang Arvin SVP, Chief Medical Officer |
7,084 | $0 | 317,903 (Direct) |
View |
2022-11-30 Exercise |
2022-12-02 4:01 pm |
N/A N/A |
Mersana Therapeutics Inc. | MRSN | Yang Arvin Chief Medical Officer |
18,500 | $0 | 25,946 (Direct) |
View |
2022-01-14 Option Award |
2022-01-19 5:59 pm |
N/A 2032-01-13 |
Mersana Therapeutics Inc. | MRSN | Yang Arvin Chief Medical Officer |
155,833 | $0 | 168,806 (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 |
2020-11-30 Option Award |
2020-12-02 4:30 pm |
N/A 2030-11-29 |
Mersana Therapeutics Inc. | MRSN | Yang Arvin Chief Medical Officer |
237,000 | $0 | 237,000 (Direct) |
View |