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 |
2021-08-13 Sale |
2021-08-13 12:14 pm |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
3,287 | $445.5 | $1,464,359 | 8,000 (Indirect Direct) |
View |
2020-09-29 Sale |
2020-09-29 1:24 pm |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
6,000 | $348 | $2,088,000 | 25,911 (Indirect 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 |
2021-09-14 Tax Withholding |
2021-09-16 10:00 am |
N/A N/A |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
4,150 | $458.41 | 13,776 (Direct) |
View |
2021-09-14 Option Award |
2021-09-16 10:00 am |
N/A N/A |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
9,926 | $0 | 13,776 (Direct) |
View |
2020-10-09 Gift |
2021-08-13 12:14 pm |
N/A N/A |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
750 | $0 | 8,000 (Indirect) |
View |
2020-09-16 Other |
2020-09-29 1:24 pm |
N/A N/A |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
6,937 | $0 | 25,911 (Direct) |
View |
2020-09-14 Option Award |
2020-09-15 6:52 pm |
N/A N/A |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
11,840 | $0 | 18,037 (Direct) |
View |
2020-09-14 Tax Withholding |
2020-09-15 6:52 pm |
N/A N/A |
COSTCO WHOLESALE CORP | COST | PORTERA JOSEPH P Executive VP |
4,903 | $342.96 | 18,037 (Direct) |
View |