Cal Henderson insider trades: Slack Technologies (WORK) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Cal reports to the SEC
Open-market buys and sales
245 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jul 1, 2021 | WORK | ↓ Sell | 1,499 | $44.29 | $66K | Direct | Jul 6, 2021 (5d) |
| May 3, 2021 | WORK | ↓ Sell | 5,637 | $42.07 | $237K | Direct | May 5, 2021 (2d) |
| Apr 1, 2021 | WORK | ↓ Sell | 1,072 | $41.20 | $44K | Direct | Apr 5, 2021 (4d) |
| Feb 1, 2021 | WORK | ↓ Sell | 4,279 | $42.45 | $182K | Direct | Feb 3, 2021 (2d) |
| Jan 4, 2021 | WORK | ↓ Sell | 1,252 | $41.99 | $53K | Direct | Jan 6, 2021 (2d) |
| Dec 7, 2020 | WORK | ↓ Sell | 1,500 | $43.07 | $65K | By trust | Dec 9, 2020 (2d) |
| Dec 4, 2020 | WORK | ↓ Sell | 3,000 | $42.89 | $129K | By trust | Dec 7, 2020 (3d) |
| Dec 2, 2020 | WORK | ↓ Sell | 3,000 | $43.21 | $130K | By trust | Dec 3, 2020 (1d) |
| Nov 30, 2020 | WORK | ↓ Sell | 3,000 | $41.31 | $124K | By trust | Dec 1, 2020 (1d) |
| Nov 25, 2020 | WORK | ↓ Sell | 3,000 | $30.50 | $91K | By trust | Nov 27, 2020 (2d) |
| Nov 23, 2020 | WORK | ↓ Sell | 1,600 | $30.00 | $48K | By trust | Nov 24, 2020 (1d) |
| Nov 2, 2020 | WORK | ↓ Sell | 6,024 | $25.16 | $152K | Direct | Nov 4, 2020 (2d) |
| Oct 20, 2020 | WORK | ↓ Sell | 3,000 | $31.99 | $96K | By trust | Oct 21, 2020 (1d) |
| Oct 16, 2020 | WORK | ↓ Sell | 3,000 | $32.49 | $97K | By trust | Oct 19, 2020 (3d) |
| Oct 14, 2020 | WORK | ↓ Sell | 3,000 | $32.35 | $97K | By trust | Oct 15, 2020 (1d) |
| Oct 12, 2020 | WORK | ↓ Sell | 3,000 | $30.89 | $93K | By trust | Oct 13, 2020 (1d) |
| Oct 8, 2020 | WORK | ↓ Sell | 3,000 | $30.00 | $90K | By trust | Oct 9, 2020 (1d) |
| Oct 1, 2020 | WORK | ↓ Sell | 1,499 | $27.35 | $41K | Direct | Oct 5, 2020 (4d) |
| Sep 8, 2020 | WORK | ↓ Sell | 3,000 | $30.42 | $91K | By trust | Sep 9, 2020 (1d) |
| Sep 3, 2020 | WORK | ↓ Sell | 1,500 | $31.15 | $47K | By trust | Sep 4, 2020 (1d) |
| Sep 2, 2020 | WORK | ↓ Sell | 3,000 | $34.02 | $102K | By trust | Sep 3, 2020 (1d) |
| Aug 31, 2020 | WORK | ↓ Sell | 3,000 | $32.05 | $96K | By trust | Sep 1, 2020 (1d) |
| Aug 27, 2020 | WORK | ↓ Sell | 3,000 | $30.27 | $91K | By trust | Aug 28, 2020 (1d) |
| Aug 21, 2020 | WORK | ↓ Sell | 3,000 | $30.06 | $90K | By trust | Aug 24, 2020 (3d) |
| Aug 7, 2020 | WORK | ↓ Sell | 1,500 | $30.00 | $45K | By trust | Aug 11, 2020 (4d) |
| Aug 6, 2020 | WORK | ↓ Sell | 3,000 | $30.06 | $90K | By trust | Aug 7, 2020 (1d) |
| Aug 4, 2020 | WORK | ↓ Sell | 3,000 | $30.18 | $91K | By trust | Aug 5, 2020 (1d) |
| Aug 3, 2020 | WORK | ↓ Sell | 5,999 | $29.96 | $180K | Direct | Aug 5, 2020 (2d) |
| Jul 24, 2020 | WORK | ↓ Sell | 20 | $30.00 | $600 | By trust | Jul 28, 2020 (4d) |
| Jul 23, 2020 | WORK | ↓ Sell | 3,000 | $31.26 | $94K | By trust | Jul 24, 2020 (1d) |
| Jul 21, 2020 | WORK | ↓ Sell | 3,000 | $33.02 | $99K | By trust | Jul 22, 2020 (1d) |
| Jul 17, 2020 | WORK | ↓ Sell | 3,000 | $31.66 | $95K | By trust | Jul 20, 2020 (3d) |
| Jul 15, 2020 | WORK | ↓ Sell | 3,000 | $31.94 | $96K | By trust | Jul 16, 2020 (1d) |
| Jul 13, 2020 | WORK | ↓ Sell | 3,000 | $34.33 | $103K | By trust | Jul 14, 2020 (1d) |
| Jul 9, 2020 | WORK | ↓ Sell | 3,000 | $33.16 | $99K | By trust | Jul 10, 2020 (1d) |
| Jul 7, 2020 | WORK | ↓ Sell | 3,000 | $31.11 | $93K | By trust | Jul 8, 2020 (1d) |
| Jul 2, 2020 | WORK | ↓ Sell | 3,000 | $30.68 | $92K | By trust | Jul 6, 2020 (4d) |
| Jul 1, 2020 | WORK | ↓ Sell | 1,412 | $30.83 | $44K | Direct | Jul 6, 2020 (5d) |
| Jun 30, 2020 | WORK | ↓ Sell | 3,000 | $30.84 | $93K | By trust | Jul 1, 2020 (1d) |
| Jun 26, 2020 | WORK | ↓ Sell | 3,000 | $32.53 | $98K | By trust | Jun 29, 2020 (3d) |
| Jun 24, 2020 | WORK | ↓ Sell | 3,000 | $33.29 | $100K | By trust | Jun 25, 2020 (1d) |
| Jun 22, 2020 | WORK | ↓ Sell | 3,000 | $33.55 | $101K | By trust | Jun 23, 2020 (1d) |
| Jun 18, 2020 | WORK | ↓ Sell | 3,000 | $33.29 | $100K | By trust | Jun 19, 2020 (1d) |
| Jun 16, 2020 | WORK | ↓ Sell | 3,000 | $30.83 | $92K | By trust | Jun 17, 2020 (1d) |
| Jun 12, 2020 | WORK | ↓ Sell | 3,000 | $31.16 | $93K | By trust | Jun 15, 2020 (3d) |
| Jun 10, 2020 | WORK | ↓ Sell | 3,000 | $31.62 | $95K | By trust | Jun 11, 2020 (1d) |
| Jun 8, 2020 | WORK | ↓ Sell | 3,000 | $31.42 | $94K | By trust | Jun 9, 2020 (1d) |
| Jun 4, 2020 | WORK | ↓ Sell | 3,000 | $38.95 | $117K | By trust | Jun 5, 2020 (1d) |
| Jun 2, 2020 | WORK | ↓ Sell | 3,000 | $36.64 | $110K | By trust | Jun 3, 2020 (1d) |
| May 29, 2020 | WORK | ↓ Sell | 3,000 | $32.98 | $99K | By trust | Jun 1, 2020 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Cal Henderson's insider trades
Cal Henderson is Chief Technology Officer at Slack Technologies (WORK). Since Jun 20, 2019, Cal has reported no open-market purchases and 245 sales worth $17.7M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include conversions (13 filings), option exercises (9 filings), other transactions (1 filing), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every WORK insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.