Tappin Matthew - Insider Non-Derivative Transactions at STEM, INC. (STEM) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Nov 11, 2025, Tappin Matthew's relationship to STEM, INC. (STEM) is Officer (President, Software Products), and currently has 1,872 shares of Common Stock, Par Value $0.0001 Per Share.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other STEM insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Tappin Matthew - Insider Non-Derivative Transactions of STEM Common Stock, Par Value $0.0001 Per Share
Tappin Matthew - Insider Non-Derivative Transactions at STEM
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Nov 12, 2025 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 9584 | 17.7 | 1872 |
| Nov 11, 2025 | F -- (Common Stock, Par Value $0.0001 Per Share) | 5416 | 18.27 | 11456 |
| Nov 8, 2025 | M -- (Common Stock, Par Value $0.0001 Per Share) | 15000 | 0 | 16872 |
| Jun 17, 2025 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 20823 | 0.45 | 37458 |
| May 31, 2025 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 1164 | 0.45 | 58281 |
| May 30, 2025 | M -- (Common Stock, Par Value $0.0001 Per Share) | 2775 | 0 | 59445 |
| Mar 13, 2025 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 13070 | 0.4 | 56670 |
| Mar 12, 2025 | M -- (Common Stock, Par Value $0.0001 Per Share) | 29167 | 0 | 69740 |
| Mar 8, 2025 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 5645 | 0.42 | 40573 |
| Mar 7, 2025 | M -- (Common Stock, Par Value $0.0001 Per Share) | 13397 | 0 | 46218 |
| Feb 21, 2025 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 8130 | 0.63 | 32821 |
| Feb 20, 2025 | M -- (Common Stock, Par Value $0.0001 Per Share) | 24316 | 0 | 40951 |
| May 29, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 1388 | 1.32 | 16635 |
| May 25, 2024 | M -- (Common Stock, Par Value $0.0001 Per Share) | 2775 | 0 | 18023 |
| Mar 20, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 26640 | 1.82 | 15248 |
| Mar 9, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 24899 | 2.19 | 41888 |
| Mar 6, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 3837 | 2.41 | 66787 |
| Mar 5, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 5724 | 2.48 | 70624 |
| Mar 2, 2024 | M -- (Common Stock, Par Value $0.0001 Per Share) | 13398 | 0 | 24809 |
| Mar 2, 2024 | Acquisition -- (Common Stock, Par Value $0.0001 Per Share) | 51539 | 0 | 76348 |
| Feb 21, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 6857 | 3.05 | 11411 |
| Feb 17, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 10602 | 3.17 | 18268 |
| Feb 16, 2024 | M -- (Common Stock, Par Value $0.0001 Per Share) | 24315 | 0 | 28870 |
| Feb 15, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 4556 | 3.15 | 4555 |
| Jan 4, 2024 | Sell -- (Common Stock, Par Value $0.0001 Per Share) | 5207 | 3.56 | 9111 |
| Jan 1, 2024 | M -- (Common Stock, Par Value $0.0001 Per Share) | 14318 | 0 | 14318 |
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