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 |
2020-11-06 Sale |
2020-11-10 5:00 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
5,000 | $27.5 | $137,500 | 309,561 (Direct) |
View |
2020-11-02 Sale |
2020-11-04 5:04 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
12,449 | $25.16 | $313,217 | 534,436 (Direct) |
View |
2020-11-02 Sale |
2020-11-04 5:03 pm |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
7,500 | $25.17 | $188,805 | 232,905 (Direct) |
View |
2020-11-02 Sale |
2020-11-04 5:03 pm |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
3,347 | $25.16 | $84,211 | 358,168 (Direct) |
View |
2020-11-02 Sale |
2020-11-04 5:03 pm |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
28,439 | $25.16 | $715,525 | 3,154,025 (Indirect Direct) |
View |
2020-11-02 Sale |
2020-11-04 5:02 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
6,024 | $25.16 | $151,564 | 16,713,913 (Indirect Direct) |
View |
2020-10-23 Sale |
2020-10-27 5:00 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
5,000 | $28.36 | $141,800 | 303,760 (Direct) |
View |
2020-10-19 Sale |
2020-10-21 5:02 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $31.99 | $95,967 | 142,816 (Indirect Direct) |
View |
2020-10-15 Sale |
2020-10-19 5:00 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $32.49 | $97,457 | 145,816 (Indirect Direct) |
View |
2020-10-13 Sale |
2020-10-15 5:00 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $32.35 | $97,050 | 148,816 (Indirect Direct) |
View |
2020-10-12 Sale |
2020-10-14 5:04 pm |
Slack Technologies Inc. | WORK | SMITH GRAHAM Director |
2,500 | $32 | $80,000 | 53,354 (Direct) |
View |
2020-10-09 Sale |
2020-10-13 5:00 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $30.89 | $92,655 | 151,816 (Indirect Direct) |
View |
2020-10-09 Sale |
2020-10-13 5:00 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
5,000 | $30.18 | $150,900 | 308,760 (Direct) |
View |
2020-10-07 Sale |
2020-10-09 4:59 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $30 | $90,015 | 154,816 (Indirect Direct) |
View |
2020-10-07 Sale |
2020-10-09 4:59 pm |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
50,000 | $30.03 | $1,501,500 | 425,679 (Direct) |
View |
2020-10-06 Sale |
2020-10-08 5:02 pm |
Slack Technologies Inc. | WORK | SMITH GRAHAM Director |
3,000 | $29 | $87,000 | 55,854 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:03 pm |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
1,499 | $27.35 | $40,998 | 292,765 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:02 pm |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
7,263 | $27.51 | $199,817 | 206,958 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:02 pm |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
110,745 | $27.44 | $3,038,894 | 80,742,768 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:02 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
2,725 | $27.35 | $74,529 | 313,760 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:01 pm |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
1,925 | $27.35 | $52,649 | 233,475 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:01 pm |
Slack Technologies Inc. | WORK | Yehoshua Tamar Chief Product Officer |
49,083 | $27.35 | $1,342,420 | 976,183 (Direct) |
View |
2020-10-01 Sale |
2020-10-05 5:00 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
1,499 | $27.35 | $40,998 | 157,816 (Indirect Direct) |
View |
2020-09-28 Sale |
2020-09-30 4:59 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
10,000 | $27.5 | $275,000 | 316,485 (Direct) |
View |
2020-09-04 Sale |
2020-09-09 5:52 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $30.42 | $91,260 | 159,315 (Indirect Direct) |
View |
2020-09-02 Sale |
2020-09-04 4:59 pm |
Slack Technologies Inc. | WORK | SMITH GRAHAM Director |
1,500 | $35 | $52,500 | 58,854 (Direct) |
View |
2020-09-02 Sale |
2020-09-04 4:59 pm |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
25,000 | $33.71 | $842,809 | 157,623 (Direct) |
View |
2020-09-02 Sale |
2020-09-04 4:59 pm |
Slack Technologies Inc. | WORK | OFARRELL JOHN Director |
10,000 | $35 | $350,000 | 1,033,992 (Indirect Direct) |
View |
2020-09-03 Sale |
2020-09-04 4:58 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
1,500 | $31.15 | $46,729 | 162,315 (Indirect Direct) |
View |
2020-09-01 Sale |
2020-09-03 5:02 pm |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
9,375 | $34.63 | $324,641 | 2,366,322 (Indirect Direct) |
View |
2020-09-01 Sale |
2020-09-03 5:01 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $34.02 | $102,073 | 163,815 (Indirect Direct) |
View |
2020-09-01 Sale |
2020-09-03 5:01 pm |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
29,268 | $34.26 | $1,002,722 | 502,690 (Direct) |
View |
2020-08-28 Sale |
2020-09-01 5:01 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $32.05 | $96,160 | 166,815 (Indirect Direct) |
View |
2020-08-28 Sale |
2020-09-01 5:00 pm |
Slack Technologies Inc. | WORK | SMITH GRAHAM Director |
2,500 | $32 | $80,000 | 60,354 (Direct) |
View |
2020-08-28 Sale |
2020-09-01 5:00 pm |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
5,000 | $31.15 | $155,750 | 326,485 (Direct) |
View |
2020-08-26 Sale |
2020-08-28 5:04 pm |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
3,000 | $30.27 | $90,795 | 169,815 (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 |
2020-11-18 Conversion |
2020-11-19 5:00 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
21,000 | $0 | 265,905 (Direct) |
View |
2020-11-18 Exercise |
2020-11-19 5:00 pm |
N/A 2029-02-26 |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
42,000 | $0 | 265,905 (Direct) |
View |
2020-11-02 Conversion |
2020-11-04 5:04 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
23,250 | $0 | 534,436 (Direct) |
View |
2020-11-02 Exercise |
2020-11-04 5:04 pm |
N/A 2025-06-20 |
Slack Technologies Inc. | WORK | Frati Robert Sr VP Sales, Customer Success |
46,500 | $0 | 534,436 (Direct) |
View |
2020-11-02 Conversion |
2020-11-04 5:03 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
7,500 | $0 | 232,905 (Direct) |
View |
2020-11-02 Exercise |
2020-11-04 5:03 pm |
N/A 2025-11-28 |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
15,000 | $0 | 232,905 (Direct) |
View |
2020-11-02 Conversion |
2020-11-04 5:03 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
6,250 | $0 | 358,168 (Direct) |
View |
2020-11-02 Exercise |
2020-11-04 5:03 pm |
N/A 2026-02-26 |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
12,500 | $0 | 358,168 (Direct) |
View |
2020-11-02 Conversion |
2020-11-04 5:03 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
56,406 | $0 | 3,154,025 (Direct) |
View |
2020-11-02 Exercise |
2020-11-04 5:03 pm |
N/A 2025-02-21 |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
112,812 | $0 | 3,154,025 (Direct) |
View |
2020-11-02 Conversion |
2020-11-04 5:02 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
6,024 | $0 | 16,713,913 (Direct) |
View |
2020-11-02 Exercise |
2020-11-04 5:02 pm |
N/A 2026-02-26 |
Slack Technologies Inc. | WORK | Henderson Cal Chief Technology Officer |
22,500 | $0 | 16,713,913 (Direct) |
View |
2020-10-01 Conversion |
2020-10-05 5:02 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
4,376 | $0 | 206,958 (Direct) |
View |
2020-10-01 Exercise |
2020-10-05 5:02 pm |
N/A 2024-05-10 |
Slack Technologies Inc. | WORK | Zell Brandon Chief Accounting Officer |
8,752 | $0 | 206,958 (Direct) |
View |
2020-10-01 Conversion |
2020-10-05 5:02 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
228,801 | $0 | 80,742,768 (Direct) |
View |
2020-10-01 Exercise |
2020-10-05 5:02 pm |
N/A 2023-06-08 |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
457,602 | $0 | 80,742,768 (Direct) |
View |
2020-10-01 Conversion |
2020-10-05 5:01 pm |
N/A N/A |
Slack Technologies Inc. | WORK | COOPER EDITH W Director |
17,089 | $0 | 296,371 (Direct) |
View |
2020-10-01 Exercise |
2020-10-05 5:01 pm |
N/A 2025-01-15 |
Slack Technologies Inc. | WORK | COOPER EDITH W Director |
34,178 | $0 | 296,371 (Direct) |
View |
2020-10-01 Conversion |
2020-10-05 5:01 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Yehoshua Tamar Chief Product Officer |
89,246 | $0 | 976,183 (Direct) |
View |
2020-10-01 Exercise |
2020-10-05 5:01 pm |
N/A 2026-01-28 |
Slack Technologies Inc. | WORK | Yehoshua Tamar Chief Product Officer |
178,492 | $0 | 976,183 (Direct) |
View |
2020-09-10 Conversion |
2020-09-14 5:00 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
70,000 | $0 | 2,650,802 (Direct) |
View |
2020-09-10 Exercise |
2020-09-14 5:00 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
70,000 | $0.14 | 2,650,802 (Direct) |
View |
2020-09-10 Exercise |
2020-09-14 5:00 pm |
N/A 2024-05-21 |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
70,000 | $0 | 2,650,802 (Direct) |
View |
2020-09-09 Exercise |
2020-09-11 4:59 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
200,000 | $24.31 | 40,692,903 (Direct) |
View |
2020-09-09 Exercise |
2020-09-11 4:59 pm |
N/A 2030-04-05 |
Slack Technologies Inc. | WORK | Butterfield Stewart Chief Executive Officer |
200,000 | $0 | 40,692,903 (Direct) |
View |
2020-09-01 Conversion |
2020-09-03 5:02 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
9,375 | $0 | 2,366,322 (Direct) |
View |
2020-09-01 Exercise |
2020-09-03 5:02 pm |
N/A 2024-05-10 |
Slack Technologies Inc. | WORK | Shim Allen Chief Financial Officer |
18,750 | $0 | 2,366,322 (Direct) |
View |
2020-09-01 Conversion |
2020-09-03 5:01 pm |
N/A N/A |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
54,892 | $0 | 502,690 (Direct) |
View |
2020-09-01 Exercise |
2020-09-03 5:01 pm |
N/A 2024-02-10 |
Slack Technologies Inc. | WORK | Schellhase David General Counsel and Secretary |
109,784 | $0 | 502,690 (Direct) |
View |