STEM
insider transactionsSTEM, INC. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-10.4K
0 buy · 10.4K sell
Net value · 365d
-$114.2K
$0 in · $114.2K out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
9
0 buy · 10.4K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Grant·A
Director
$0
12.2K sh
Own New
-
Grant·A
Director
$0
12.2K sh
Own New
-
Grant·A
Director
$0
12.2K sh
Own New
-
Grant·A
Director
$0
12.2K sh
Own New
-
Grant·A
Director
$0
12.2K sh
Own New
-
Grant·A
Director
$0
12.2K sh
Own New
-
Grant·A
Director
$0
12.2K sh
Own New
-
Other·F
Ira M Birns KEY
Chief Executive Officer
$64.0K
2.7K sh · $23.36
Own -1%
-
Grant·A
Ira M Birns KEY
Chief Executive Officer
$0
39.5K sh
Own +17%
-
Other·F
Ira M Birns KEY
Chief Executive Officer
$41.0K
1.8K sh · $22.80
Own -1%
-
Other·F
Ira M Birns KEY
Chief Executive Officer
$47.9K
2.1K sh · $22.80
Own -1%
-
Sell·S
Matthew Tappin KEY
President, Software Products · 10b5-1
$4.4K
402 sh · $10.83
Own -12%
-
Sell·S
Matthew Tappin KEY
President, Software Products
$7.3K
655 sh · $11.12
Own -17%
-
Sell·S
Arun Narayanan KEY
Chief Executive Officer
$57.2K
5.1K sh · $11.12
Own -28%
-
Sell·S
Chief Legal Officer
$10.5K
942 sh · $11.12
Own -3%
-
Sell·S
President, Managed Services
$23.1K
2.1K sh · $11.12
Own -10%
-
Exercise·M
Matthew Tappin KEY
President, Software Products
$0
1.5K sh
Own +145800%
-
Exercise·M
Matthew Tappin KEY
President, Software Products
—
1.5K sh
Own +60%
-
Exercise·M
Arun Narayanan KEY
Chief Executive Officer
$0
5.6K sh
Own New
-
Exercise·M
Arun Narayanan KEY
Chief Executive Officer
$0
12.5K sh
Own +100%
-
Exercise·M
Arun Narayanan KEY
Chief Executive Officer
—
5.6K sh
Own +45%
-
Exercise·M
Arun Narayanan KEY
Chief Executive Officer
—
12.5K sh
Own New
-
Exercise·M
Chief Legal Officer
$0
2.9K sh
Own +145800%
-
Exercise·M
Chief Legal Officer
—
2.9K sh
Own +11%
-
Exercise·M
President, Managed Services
$0
3.5K sh
Own New
-
Exercise·M
President, Managed Services
—
3.5K sh
Own +20%
-
Sell·S
Matthew Tappin KEY
President, Software Products
$1.9K
185 sh · $10.00
Own -7%
-
Sell·S
Matthew Tappin KEY
President, Software Products
$2.9K
300 sh · $9.67
Own -10%
-
Sell·S
Chief Legal Officer
$2.8K
292 sh · $9.67
Own -1%
-
Exercise·M
Matthew Tappin KEY
President, Software Products
$0
670 sh
Own New
-
Exercise·M
Matthew Tappin KEY
President, Software Products
—
670 sh
Own +30%
-
Exercise·M
Chief Legal Officer
$0
904 sh
Own New
-
Exercise·M
Chief Legal Officer
—
904 sh
Own +4%
-
Grant·A
Matthew Tappin KEY
President, Software Products
$0
17.2K sh
Own New
-
Grant·A
Matthew Tappin KEY
President, Software Products
$0
25.8K sh
Own New
-
Grant·A
Arun Narayanan KEY
Chief Executive Officer
$0
38.4K sh
Own New
-
Grant·A
Arun Narayanan KEY
Chief Executive Officer
$0
57.6K sh
Own New
-
Grant·A
Brian Musfeldt KEY
Chief Financial Officer
$0
17.2K sh
Own New
-
Grant·A
Brian Musfeldt KEY
Chief Financial Officer
$0
25.8K sh
Own New
-
Grant·A
Chief Legal Officer
$0
12.0K sh
Own New
-
Grant·A
Chief Legal Officer
$0
18.0K sh
Own New
-
Grant·A
President, Managed Services
$0
17.2K sh
Own New
-
Grant·A
President, Managed Services
$0
25.8K sh
Own New
-
Other·D
Director
—
40.0K sh
Own -100%
-
Sell·S
Matthew Tappin KEY
President, Software Products
$4.2K
366 sh · $11.40
Own -14%
-
Other·F
Matthew Tappin KEY
President, Software Products
$5.9K
522 sh · $11.30
Own -17%
-
Other·F
Chief Legal Officer
$6.1K
536 sh · $11.30
Own -2%
-
Other·F
President, Managed Services
$8.2K
730 sh · $11.30
Own -4%
-
Exercise·M
Matthew Tappin KEY
President, Software Products
$0
1.3K sh
Own New
-
Exercise·M
Matthew Tappin KEY
President, Software Products
—
1.3K sh
Own +67%
-
Exercise·M
Chief Legal Officer
$0
1.8K sh
Own New
-
Exercise·M
Chief Legal Officer
—
1.8K sh
Own +8%
-
Exercise·M
President, Managed Services
$0
1.3K sh
Own New
-
Exercise·M
President, Managed Services
—
1.3K sh
Own +8%
-
Grant·A
Chief Accounting Officer
$0
3.5K sh
Own New
-
Grant·A
Chief Accounting Officer
$0
7.0K sh
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 3, 2026 | Laura D Tyson | Grant A | 12.2K | $0 |
| Jun 3, 2026 | Anil Tammineedi | Grant A | 12.2K | $0 |
| Jun 3, 2026 | Krishna Shivram | Grant A | 12.2K | $0 |
| Jun 3, 2026 | Vasudevan Guruswamy | Grant A | 12.2K | $0 |
| Jun 3, 2026 | Adam Daley | Grant A | 12.2K | $0 |
| Jun 3, 2026 | Ira M Birns | Grant A | 12.2K | $0 |
| Jun 3, 2026 | David S Buzby | Grant A | 12.2K | $0 |
| Mar 28, 2026 | Ira M Birns KEY | Other F | 2.7K | $64.0K |
| Mar 15, 2026 | Ira M Birns KEY | Grant A | 39.5K | $0 |
| Mar 15, 2026 | Ira M Birns KEY | Other F | 1.8K | $41.0K |
| Mar 15, 2026 | Ira M Birns KEY | Other F | 2.1K | $47.9K |
| Mar 11, 2026 | Matthew Tappin KEY 10b5-1 | Sell S | 402 | $4.4K |
| Mar 10, 2026 | Matthew Tappin KEY | Sell S | 655 | $7.3K |
| Mar 10, 2026 | Arun Narayanan KEY | Sell S | 5.1K | $57.2K |
| Mar 10, 2026 | Saul R. Laureles | Sell S | 942 | $10.5K |
| Mar 10, 2026 | Michael James Carlson KEY | Sell S | 2.1K | $23.1K |
| Mar 7, 2026 | Matthew Tappin KEY | Exercise M | 1.5K | $0 |
| Mar 7, 2026 | Matthew Tappin KEY | Exercise M | 1.5K | — |
| Mar 7, 2026 | Arun Narayanan KEY | Exercise M | 5.6K | $0 |
| Mar 7, 2026 | Arun Narayanan KEY | Exercise M | 12.5K | $0 |
| Mar 7, 2026 | Arun Narayanan KEY | Exercise M | 5.6K | — |
| Mar 7, 2026 | Arun Narayanan KEY | Exercise M | 12.5K | — |
| Mar 7, 2026 | Saul R. Laureles | Exercise M | 2.9K | $0 |
| Mar 7, 2026 | Saul R. Laureles | Exercise M | 2.9K | — |
| Mar 7, 2026 | Michael James Carlson KEY | Exercise M | 3.5K | $0 |
| Mar 7, 2026 | Michael James Carlson KEY | Exercise M | 3.5K | — |
| Mar 4, 2026 | Matthew Tappin KEY | Sell S | 185 | $1.9K |
| Mar 3, 2026 | Matthew Tappin KEY | Sell S | 300 | $2.9K |
| Mar 3, 2026 | Saul R. Laureles | Sell S | 292 | $2.8K |
| Mar 1, 2026 | Matthew Tappin KEY | Exercise M | 670 | $0 |
| Mar 1, 2026 | Matthew Tappin KEY | Exercise M | 670 | — |
| Mar 1, 2026 | Saul R. Laureles | Exercise M | 904 | $0 |
| Mar 1, 2026 | Saul R. Laureles | Exercise M | 904 | — |
| Feb 26, 2026 | Matthew Tappin KEY | Grant A | 17.2K | $0 |
| Feb 26, 2026 | Matthew Tappin KEY | Grant A | 25.8K | $0 |
| Feb 26, 2026 | Arun Narayanan KEY | Grant A | 38.4K | $0 |
| Feb 26, 2026 | Arun Narayanan KEY | Grant A | 57.6K | $0 |
| Feb 26, 2026 | Brian Musfeldt KEY | Grant A | 17.2K | $0 |
| Feb 26, 2026 | Brian Musfeldt KEY | Grant A | 25.8K | $0 |
| Feb 26, 2026 | Saul R. Laureles | Grant A | 12.0K | $0 |
| Feb 26, 2026 | Saul R. Laureles | Grant A | 18.0K | $0 |
| Feb 26, 2026 | Michael James Carlson KEY | Grant A | 17.2K | $0 |
| Feb 26, 2026 | Michael James Carlson KEY | Grant A | 25.8K | $0 |
| Feb 24, 2026 | David S Buzby | Other D | 40.0K | — |
| Feb 20, 2026 | Matthew Tappin KEY | Sell S | 366 | $4.2K |
| Feb 19, 2026 | Matthew Tappin KEY | Other F | 522 | $5.9K |
| Feb 19, 2026 | Saul R. Laureles | Other F | 536 | $6.1K |
| Feb 19, 2026 | Michael James Carlson KEY | Other F | 730 | $8.2K |
| Feb 15, 2026 | Matthew Tappin KEY | Exercise M | 1.3K | $0 |
| Feb 15, 2026 | Matthew Tappin KEY | Exercise M | 1.3K | — |
| Feb 15, 2026 | Saul R. Laureles | Exercise M | 1.8K | $0 |
| Feb 15, 2026 | Saul R. Laureles | Exercise M | 1.8K | — |
| Feb 15, 2026 | Michael James Carlson KEY | Exercise M | 1.3K | $0 |
| Feb 15, 2026 | Michael James Carlson KEY | Exercise M | 1.3K | — |
| Jan 5, 2026 | Jeffrey T Cabot | Grant A | 3.5K | $0 |
| Jan 5, 2026 | Jeffrey T Cabot | Grant A | 7.0K | $0 |
About STEM insider trading
This page tracks insider transactions for STEM, INC. (STEM) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.