| SC 13G/A | 2021-02-16 | Accel X LP | Slack Technologies, Inc. | 4,877,680 | 0.0% | EDGAR |
| SC 13G/A | 2021-02-16 | Andreessen Horowitz Fund I, L.P. | Slack Technologies, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2021-02-16 | SB INVESTMENT ADVISERS (UK) LTD | Slack Technologies, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | Slack Technologies, Inc. | 41,802,676 | 8.5% | EDGAR |
| SC 13G/A | 2021-02-05 | Butterfield Stewart | Slack Technologies, Inc. | 76,948,202 | 13.4% | EDGAR |
| SC 13G/A | 2021-01-11 | PRICE T ROWE ASSOCIATES INC /MD/ | Slack Technologies, Inc. | 28,108,301 | 5.7% | EDGAR |
| SC 13G/A | 2021-01-11 | MORGAN STANLEY | Slack Technologies, Inc. | 42,842 | 0.0% | EDGAR |
| SC 13G/A | 2020-08-10 | PRICE T ROWE ASSOCIATES INC /MD/ | Slack Technologies, Inc. | 50,198,932 | 11.6% | EDGAR |
| SC 13G/A | 2020-07-09 | WELLINGTON MANAGEMENT GROUP LLP | Slack Technologies, Inc. | 19,958,923 | 4.6% | EDGAR |
| SC 13G/A | 2020-06-10 | PRICE T ROWE ASSOCIATES INC /MD/ | Slack Technologies, Inc. | 36,830,901 | 8.6% | EDGAR |
| SC 13G/A | 2020-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | Slack Technologies, Inc. | 42,843,172 | 14.7% | EDGAR |
| SC 13G | 2020-02-14 | Andreessen Horowitz Fund I, L.P. | Slack Technologies, Inc. | 29,886,496 | 9.6% | EDGAR |
| SC 13G | 2020-02-14 | SOFTBANK VISION FUND (AIV M1) L.P. | Slack Technologies, Inc. | 36,611,744 | 11.8% | EDGAR |
| SC 13G/A | 2020-02-12 | MORGAN STANLEY | Slack Technologies, Inc. | 34,854,399 | 12.0% | EDGAR |
| SC 13G | 2020-02-12 | Accel X LP | Slack Technologies, Inc. | 37,199,820 | 11.3% | EDGAR |
| SC 13G | 2020-02-11 | VANGUARD GROUP INC | Slack Technologies, Inc. | 17,332,992 | 5.9% | EDGAR |
| SC 13G/A | 2020-02-10 | WELLINGTON MANAGEMENT GROUP LLP | Slack Technologies, Inc. | 31,509,215 | 10.8% | EDGAR |
| SC 13G | 2020-02-07 | Butterfield Stewart | Slack Technologies, Inc. | 80,877,153 | 19.3% | EDGAR |
| SC 13G | 2020-01-28 | WELLINGTON MANAGEMENT GROUP LLP | Slack Technologies, Inc. | 27,084,942 | 9.3% | EDGAR |
| SC 13G | 2019-08-12 | PRICE T ROWE ASSOCIATES INC /MD/ | Slack Technologies, Inc. | 27,466,304 | 14.1% | EDGAR |