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 |
2020-08-20 Sale |
2020-08-24 5:01 pm |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
25,000 | $30 | $750,000 | 182,623 (Direct) |
View |
2020-08-20 Sale |
2020-08-24 5:00 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $30.06 | $90,180 | 172,815 (Indirect Direct) |
View |
2020-08-14 Sale |
2020-08-18 4:59 pm |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
3,501 | $28.37 | $99,323 | 175,780 (Direct) |
View |
2020-08-14 Sale |
2020-08-18 4:59 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
5,000 | $28.37 | $141,850 | 331,485 (Direct) |
View |
2020-08-07 Sale |
2020-08-11 5:09 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
1,500 | $30 | $45,000 | 175,815 (Indirect Direct) |
View |
2020-08-05 Sale |
2020-08-07 8:44 pm |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
25,000 | $30.17 | $754,250 | 207,623 (Direct) |
View |
2020-08-05 Sale |
2020-08-07 8:43 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $30.06 | $90,180 | 177,315 (Indirect Direct) |
View |
2020-08-03 Sale |
2020-08-05 5:52 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
8,999 | $30.03 | $270,255 | 16,752,185 (Indirect Direct) |
View |
2020-08-03 Sale |
2020-08-05 5:31 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
12,398 | $29.96 | $371,444 | 579,610 (Direct) |
View |
2020-08-03 Sale |
2020-08-05 5:31 pm |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
3,333 | $29.96 | $99,857 | 337,390 (Direct) |
View |
2020-08-03 Sale |
2020-08-05 5:30 pm |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
3,999 | $29.96 | $119,810 | 227,648 (Direct) |
View |
2020-08-03 Sale |
2020-08-05 5:30 pm |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
78,471 | $30.12 | $2,363,489 | 3,114,389 (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 |
2020-08-11 Option Award |
2020-08-13 5:09 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
19,133 | $0 | 179,281 (Direct) |
View |
2020-08-03 Conversion |
2020-08-05 5:52 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
5,999 | $0 | 16,752,185 (Direct) |
View |
2020-08-03 Exercise |
2020-08-05 5:52 pm |
N/A 2026-02-26 |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
22,500 | $0 | 16,752,185 (Direct) |
View |
2020-08-03 Conversion |
2020-08-05 5:31 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
23,250 | $0 | 579,610 (Direct) |
View |
2020-08-03 Exercise |
2020-08-05 5:31 pm |
N/A 2025-06-20 |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
46,500 | $0 | 579,610 (Direct) |
View |
2020-08-03 Conversion |
2020-08-05 5:31 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
6,250 | $0 | 337,390 (Direct) |
View |
2020-08-03 Exercise |
2020-08-05 5:31 pm |
N/A 2026-02-26 |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
12,500 | $0 | 337,390 (Direct) |
View |
2020-08-03 Conversion |
2020-08-05 5:30 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
7,500 | $0 | 227,648 (Direct) |
View |
2020-08-03 Exercise |
2020-08-05 5:30 pm |
N/A 2025-11-28 |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
15,000 | $0 | 227,648 (Direct) |
View |
2020-08-03 Conversion |
2020-08-05 5:30 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
56,406 | $0 | 3,114,389 (Direct) |
View |
2020-08-03 Exercise |
2020-08-05 5:30 pm |
N/A 2025-02-21 |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
112,812 | $0 | 3,114,389 (Direct) |
View |