WORKUnknown
Slack Technologies, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Slack Technologies, Inc. (WORK), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are WORK insiders buying or selling?
Slack Technologies, Inc. insiders reported no open-market purchases or sales in the last 12 months. Since June 2019, Trabud has recorded 600 Form 4 filings for WORK: 0 buys ($0) and 600 sells ($1.7B).
Source: SEC EDGAR Form 4
Key Statistics (June 2019 – Jul 6, 2021)
Total Form 4 filings
600
SEC EDGAR
Insider filers
17
Insider buys (0)
$0
Insider sells (600)
$1.7B
Insider sentiment
Net sellingNet insider flow of $1.7B in net selling since June 2019.
Recent WORK insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Jul 6, 2021 | Robert Frati | Sr VP Sales, Customer Success | Sale | 2.7K | $44.29 | $120.7K | SEC ↗ |
| Jul 6, 2021 | Allen Shim | Chief Financial Officer | Sale | 1.9K | $44.29 | $85.3K | SEC ↗ |
| Jul 6, 2021 | David Schellhase | General Counsel and Secretary | Sale | 1.5K | $44.29 | $66.4K | SEC ↗ |
| Jul 6, 2021 | Tamar Yehoshua | Chief Product Officer | Sale | 92.1K | $44.39 | $4.1M | SEC ↗ |
| Jul 6, 2021 | Brandon Zell | Chief Accounting Officer | Sale | 3.3K | $44.29 | $147.8K | SEC ↗ |
| Jul 6, 2021 | Stewart Butterfield | Chief Executive Officer | Sale | 109.3K | $44.26 | $4.8M | SEC ↗ |
| Jul 6, 2021 | Cal Henderson | Chief Technology Officer | Sale | 1.5K | $44.29 | $66.4K | SEC ↗ |
| Jun 3, 2021 | David Schellhase | General Counsel and Secretary | Sale | 3.3K | $43.82 | $146.1K | SEC ↗ |
| May 26, 2021 | Tamar Yehoshua | Chief Product Officer | Sale | 85.7K | $43.00 | $3.7M | SEC ↗ |
| May 5, 2021 | Cal Henderson | Chief Technology Officer | Sale | 5.6K | $42.07 | $237.1K | SEC ↗ |
| May 5, 2021 | Brandon Zell | Chief Accounting Officer | Sale | 4.0K | $42.07 | $168.2K | SEC ↗ |
| May 5, 2021 | David Schellhase | General Counsel and Secretary | Sale | 3.3K | $42.07 | $140.2K | SEC ↗ |
| May 5, 2021 | Allen Shim | Chief Financial Officer | Sale | 28.3K | $42.07 | $1.2M | SEC ↗ |
| May 5, 2021 | Robert Frati | Sr VP Sales, Customer Success | Sale | 12.4K | $42.07 | $521.6K | SEC ↗ |
| Apr 19, 2021 | Stewart Butterfield | Chief Executive Officer | Sale | 250.0K | $42.06 | $10.5M | SEC ↗ |
| Apr 15, 2021 | Allen Shim | Chief Financial Officer | Sale | 196.4K | $42.12 | $8.3M | SEC ↗ |
| Apr 5, 2021 | Robert Frati | Sr VP Sales, Customer Success | Sale | 2.7K | $41.20 | $112.3K | SEC ↗ |
| Apr 5, 2021 | Tamar Yehoshua | Chief Product Officer | Sale | 49.1K | $41.20 | $2.0M | SEC ↗ |
| Apr 5, 2021 | Graham Smith | Director | Sale | 8.0K | $41.01 | $328.1K | SEC ↗ |
| Apr 5, 2021 | Cal Henderson | Chief Technology Officer | Sale | 1.1K | $41.20 | $44.2K | SEC ↗ |
| Apr 5, 2021 | David Schellhase | General Counsel and Secretary | Sale | 1.5K | $41.20 | $61.8K | SEC ↗ |
| Apr 5, 2021 | Stewart Butterfield | Chief Executive Officer | Sale | 102.1K | $41.22 | $4.2M | SEC ↗ |
| Apr 5, 2021 | Allen Shim | Chief Financial Officer | Sale | 1.9K | $41.20 | $79.3K | SEC ↗ |
| Apr 5, 2021 | Brandon Zell | Chief Accounting Officer | Sale | 4.2K | $41.20 | $171.9K | SEC ↗ |
| Mar 3, 2021 | Allen Shim | Chief Financial Officer | Sale | 4.7K | $41.15 | $193.7K | SEC ↗ |
Showing the 25 most recent of 600 Form 4 filings for Slack Technologies, Inc..
Most active WORK insiders
- Cal Henderson239 filings
- Stewart Butterfield197 filings
- Allen Shim29 filings
- David Schellhase29 filings
- Robert Frati29 filings
Ask anything about WORK insider activity
Use Trabud's AI agent to query Slack Technologies, Inc.'s Form 4 history in plain English — "Show me WORK CEO purchases this year" or compare it against any other ticker.
Open the AI agentWORK insider trading FAQ
Are Slack Technologies, Inc. insiders buying or selling?
Slack Technologies, Inc. insiders reported no open-market purchases or sales in the last 12 months. Since June 2019, Trabud has recorded 600 Form 4 filings for WORK: 0 buys ($0) and 600 sells ($1.7B). Over the full record that is net selling of $1.7B.
How many insiders trade WORK stock?
17 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Slack Technologies, Inc.. The most recent filing was accepted on Jul 6, 2021.
Where does Trabud get WORK insider trading data?
All WORK insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.