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 |
| 2021-07-16 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 |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 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 |
| 2021-01-15 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 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 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 |
| 2020-01-15 Option Award | 2020-01-16 4:31 pm | N/A 2030-01-15 | Mersana Therapeutics Inc. | MRSN | Kaufman Michael J. Sr., VP, CHEM., MFG,Controls | 146,667 | $0 | 146,667 (Direct) | View |