Matthew Tappin insider trades: Stem (STEM) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Matthew reports to the SEC
Open-market buys and sales
17 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jul 2, 2026 | STEM | ↓ Sell | 996 | $7.85 | $8K | Direct | Jul 2, 2026 (0d) |
| Mar 10, 2026 | STEM | ↓ Sell | 655 | $11.12 | $7K | Direct | Mar 10, 2026 (0d) |
| Mar 4, 2026 | STEM | ↓ Sell | 485 | $9.80 | $5K | Direct | Mar 4, 2026 (0d) |
| Feb 20, 2026 | STEM | ↓ Sell | 366 | $11.40 | $4K | Direct | Feb 23, 2026 (3d) |
| Nov 11, 2025 | STEM | ↓ Sell | 9,584 | $17.70 | $170K | Direct | Nov 24, 2025 (13d) |
| Jun 16, 2025 | STEM | ↓ Sell | 21,987 | $0.45 | $10K | Direct | Jun 18, 2025 (2d) |
| Mar 12, 2025 | STEM | ↓ Sell | 18,715 | $0.41 | $8K | Direct | Mar 17, 2025 (5d) |
| Feb 20, 2025 | STEM | ↓ Sell | 8,130 | $0.63 | $5K | Direct | Feb 21, 2025 (1d) |
| May 28, 2024 | STEM | ↓ Sell10b5-1 | 1,388 | $1.32 | $2K | Direct | May 30, 2024 (2d) |
| Mar 19, 2024 | STEM | ↓ Sell | 26,640 | $1.82 | $48K | Direct | Mar 20, 2024 (1d) |
| Mar 8, 2024 | STEM | ↓ Sell | 24,899 | $2.19 | $55K | Direct | Mar 12, 2024 (4d) |
| Mar 5, 2024 | STEM | ↓ Sell10b5-1 | 3,837 | $2.41 | $9K | Direct | Mar 7, 2024 (2d) |
| Mar 4, 2024 | STEM | ↓ Sell | 5,724 | $2.48 | $14K | Direct | Mar 5, 2024 (1d) |
| Feb 20, 2024 | STEM | ↓ Sell | 6,857 | $3.05 | $21K | Direct | Feb 21, 2024 (1d) |
| Feb 16, 2024 | STEM | ↓ Sell | 10,602 | $3.17 | $34K | Direct | Feb 20, 2024 (4d) |
| Feb 14, 2024 | STEM | ↓ Sell | 4,556 | $3.15 | $14K | Direct | Feb 16, 2024 (2d) |
| Jan 3, 2024 | STEM | ↓ Sell10b5-1 | 5,207 | $3.56 | $19K | Direct | Jan 3, 2024 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other STEM insiders
Open-market trades in the last 12 months
About Matthew Tappin's insider trades
Matthew Tappin is President, Software Products at Stem (STEM). Since Jan 3, 2024, Matthew has reported no open-market purchases and 17 sales worth $432K on SEC Form 4. In the last 12 months: 5 sales ($194K).
3 sales (7% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include option exercises (12 filings), grants and awards (7 filings), shares withheld for taxes (2 filings). 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 STEM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.