Tappin Matthew
President, Software Products
Sale 10b5-1
- Shares
- 402
- Price
- $10.83
- Value
- $4,354
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•53 filings
STEM
STEM, INC.
No net buying or selling imbalance over the last 3 months
No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
$0.00
0 buyers · 0 sellers
12-month purchases
$0.00
0 distinct insiders
12-month sales
$239,568
2 distinct insiders
Highlighted alerts
4
1 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
No executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
100
Raw transactions
Everything returned by the filing
5
Voluntary view
P/S trades after deterministic checks
95
Administrative noise
Stored, never alerted
1
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- S
- Shares
- 146
- Price
- $4.67
- Footnotes
- 3
Represents shares of common stock automatically sold to cover the reporting person's tax liability in connection with the vesting of RSUs on September 26, 2026. This "sell to cover" transaction does not represent a discretionary trade by the reporting person. Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's common stock. On September 26, 2022, the Reporting Person was granted 1,217 RSUs vesting in four equal annual installments, the fourth of which vested on September 26, 2026.
Raspberry interpretation
Informational — no alert
Reason: tax_withholding. The filing footnotes identify tax withholding.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Tappin Matthew
President, Software Products
SaleAlert
- Shares
- 185
- Price
- $10.00
- Value
- $1,850
Tappin Matthew
President, Software Products
SaleAlert
- Shares
- 366
- Price
- $11.40
- Value
- $4,172
Shukla Rahul
Chief Accounting Officer
SaleAlert
- Shares
- 3,674
- Price
- $16.21
- Value
- $59,556
Tappin Matthew
President, Software Products
SaleAlert
- Shares
- 9,584
- Price
- $17.70
- Value
- $169,637
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Mar 11, 2026 | Tappin Matthew President, Software Products | Sale | 402 | $10.83 | $4,354 | |
| Mar 04, 2026 | Tappin Matthew President, Software Products | Sale | 185 | $10.00 | $1,850 | |
| Feb 20, 2026 | Tappin Matthew President, Software Products | Sale | 366 | $11.40 | $4,172 | |
| Nov 18, 2025 | Shukla Rahul Chief Accounting Officer | Sale | 3,674 | $16.21 | $59,556 | |
| Nov 11, 2025 | Tappin Matthew President, Software Products | Sale | 9,584 | $17.70 | $169,637 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.