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.
"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 |
2017-10-23 Sale | 2017-10-25 7:06 pm | STAMPS.COM INC | STMP | Biswas Michael John CTO | 29,288 | $229.22 | $6,713,333 | 414,191 (Direct) | View |
2017-09-20 Sale | 2017-09-22 8:11 pm | STAMPS.COM INC | STMP | Biswas Michael John CTO | 37,500 | $210.34 | $7,887,819 | 546,476 (Direct) | View |
2017-09-11 Sale | 2017-09-13 8:55 pm | STAMPS.COM INC | STMP | Biswas Michael John CTO | 76,602 | $196.55 | $15,056,335 | 562,659 (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 |
2017-10-23 Exercise | 2017-10-25 7:06 pm | N/A N/A | STAMPS.COM INC | STMP | Biswas Michael John CTO | 17,622 | $32.41 | 414,191 (Direct) | View |
2017-10-23 Exercise | 2017-10-25 7:06 pm | 2014-10-19 2024-09-19 | STAMPS.COM INC | STMP | Biswas Michael John CTO | 29,288 | $0 | 414,191 (Direct) | View |
2017-10-23 Exercise | 2017-10-25 7:06 pm | N/A N/A | STAMPS.COM INC | STMP | Biswas Michael John CTO | 11,666 | $66.28 | 414,191 (Direct) | View |
2017-09-20 Exercise | 2017-09-22 8:11 pm | N/A N/A | STAMPS.COM INC | STMP | Biswas Michael John CTO | 37,500 | $32.41 | 546,476 (Direct) | View |
2017-09-20 Exercise | 2017-09-22 8:11 pm | 2014-09-19 2024-09-19 | STAMPS.COM INC | STMP | Biswas Michael John CTO | 37,500 | $0 | 546,476 (Direct) | View |
2017-09-11 Exercise | 2017-09-13 8:55 pm | N/A N/A | STAMPS.COM INC | STMP | Biswas Michael John CTO | 61,532 | $32.41 | 562,659 (Direct) | View |
2017-09-11 Exercise | 2017-09-13 8:55 pm | 2011-05-20 2021-05-20 | STAMPS.COM INC | STMP | Biswas Michael John CTO | 73,008 | $0 | 562,659 (Direct) | View |
2017-09-11 Exercise | 2017-09-13 8:55 pm | N/A N/A | STAMPS.COM INC | STMP | Biswas Michael John CTO | 13,468 | $12.55 | 562,659 (Direct) | View |