STEM STEM, INC.
NYSE · SEC CIK 1758766 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $388.8K 15 sales by 6 insiders
- Filings on record
- 340 since 2021-07-06, latest 2026-08-11 21:21
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Tappin Matthew | Pres, Software Products | — | $198.0K |
| Narayanan Arun | CEO | — | $72.9K |
| Shukla Rahul | CAO | — | $59.6K |
| Carlson Michael James | Pres, Managed Services | — | $33.7K |
| Laureles Saul R. | CLO | — | $18.6K |
| Musfeldt Brian | CFO | — | $6,086 |
| Guruswamy Vasudevan | Dir | — | — |
| Tammineedi Anil | Dir | — | — |
| Daley Adam | Dir | — | — |
| Shivram Krishna | Dir | — | — |
Transactions 317
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | BUZBY DAVID S | Dir | M - OptEx | — | +7,486 | 7,486 | New | — |
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | Shivram Krishna | Dir | M - OptEx | — | +7,486 | 10.6K | +241% | — |
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | Daley Adam | Dir | M - OptEx | — | +7,486 | 19.5K | +62% | — |
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | Tammineedi Anil | Dir | M - OptEx | — | +7,486 | 15.5K | +94% | — |
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | Guruswamy Vasudevan | Dir | M - OptEx | — | +7,486 | 10.6K | +241% | — |
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | TYSON LAURA D | Dir | A - Grant | — | +7,486 | 15.5K | +94% | — |
| D | 2026-08-11 21:21 | 2026-08-07 | STEM | Birns Ira M | Dir | M - OptEx | — | +7,486 | 14.2K | +111% | — |
| D | 2026-07-21 17:15 | 2026-07-17 | STEM | Musfeldt Brian | CFO | M - OptEx | $6.26 | +3,375 | 3,375 | New | +$21.1K |
| D | 2026-07-21 17:15 | 2026-07-20 | STEM | Musfeldt Brian | CFO | S - Sale+OE | $6.11 | -996 | 2,379 | -30% | -$6,086 |
| DM | 2026-07-02 18:57 | 2026-06-30 | STEM | Laureles Saul R. | CLO | M - OptEx | $7.81 | +7,750 | 35.2K | +28% | +$60.5K |
| D | 2026-07-02 18:57 | 2026-07-02 | STEM | Laureles Saul R. | CLO | S - Sale+OE | $7.85 | -675 | 34.5K | -2% | -$5,299 |
| DM | 2026-07-02 18:57 | 2026-06-30 | STEM | Tappin Matthew | Pres, Software Products | M - OptEx | $7.81 | +7,750 | 10.6K | +275% | +$60.5K |
| D | 2026-07-02 18:57 | 2026-07-02 | STEM | Tappin Matthew | Pres, Software Products | S - Sale+OE | $7.85 | -996 | 9,577 | -9% | -$7,819 |
| DM | 2026-07-02 18:56 | 2026-06-30 | STEM | Carlson Michael James | Pres, Managed Services | M - OptEx | $7.81 | +7,750 | 27.2K | +40% | +$60.5K |
| D | 2026-07-02 18:56 | 2026-07-02 | STEM | Carlson Michael James | Pres, Managed Services | S - Sale+OE | $7.85 | -1,347 | 25.9K | -5% | -$10.6K |
| D | 2026-07-02 18:56 | 2026-06-30 | STEM | Narayanan Arun | CEO | M - OptEx | $7.81 | +8,125 | 21.1K | +63% | +$63.5K |
| D | 2026-07-02 18:56 | 2026-07-02 | STEM | Narayanan Arun | CEO | S - Sale+OE | $7.85 | -1,996 | 19.1K | -9% | -$15.7K |
| 2026-03-13 | 2026-03-11 | STEM | Tappin Matthew | Pres, Software Products | S - Sale | $10.83 | -402 | 2,823 | -12% | -$4,354 | |
| DM | 2026-03-10 | 2026-03-07 | STEM | Narayanan Arun | CEO | M - OptEx | — | +18.1K | 12.5K | New | — |
| D | 2026-03-10 | 2026-03-10 | STEM | Narayanan Arun | CEO | S - Sale+OE | $11.12 | -5,145 | 13.0K | -28% | -$57.2K |
| D | 2026-03-10 | 2026-03-07 | STEM | Tappin Matthew | Pres, Software Products | M - OptEx | — | +1,458 | 3,880 | +60% | — |
| D | 2026-03-10 | 2026-03-10 | STEM | Tappin Matthew | Pres, Software Products | S - Sale+OE | $11.12 | -655 | 3,225 | -17% | -$7,284 |
| D | 2026-03-10 | 2026-03-07 | STEM | Carlson Michael James | Pres, Managed Services | M - OptEx | — | +3,541 | 21.5K | +20% | — |
| D | 2026-03-10 | 2026-03-10 | STEM | Carlson Michael James | Pres, Managed Services | S - Sale+OE | $11.12 | -2,079 | 19.5K | -10% | -$23.1K |
| D | 2026-03-10 | 2026-03-07 | STEM | Laureles Saul R. | CLO | M - OptEx | — | +2,916 | 28.4K | +11% | — |
| D | 2026-03-10 | 2026-03-10 | STEM | Laureles Saul R. | CLO | S - Sale+OE | $11.12 | -942 | 27.4K | -3% | -$10.5K |
| 2026-03-04 | 2026-03-03 | STEM | Laureles Saul R. | CLO | S - Sale | $9.67 | -292 | 25.5K | -1% | -$2,824 | |
| M | 2026-03-04 | 2026-03-03+ | STEM | Tappin Matthew | Pres, Software Products | S - Sale | $9.80 | -485 | 2,422 | -17% | -$4,751 |
| D | 2026-03-02 | 2026-03-01 | STEM | Tappin Matthew | Pres, Software Products | M - OptEx | — | +670 | 2,907 | +30% | — |
| D | 2026-03-02 | 2026-03-01 | STEM | Laureles Saul R. | CLO | M - OptEx | — | +904 | 25.8K | +4% | — |
| 2026-02-23 | 2026-02-20 | STEM | Tappin Matthew | Pres, Software Products | S - Sale | $11.40 | -366 | 2,237 | -14% | -$4,172 | |
| 2026-02-19 | 2026-02-19 | STEM | Tappin Matthew | Pres, Software Products | F - Tax | $11.30 | -522 | 2,603 | -17% | -$5,899 | |
| 2026-02-19 | 2026-02-19 | STEM | Laureles Saul R. | CLO | F - Tax | $11.30 | -536 | 24.9K | -2% | -$6,057 | |
| 2026-02-19 | 2026-02-19 | STEM | Carlson Michael James | Pres, Managed Services | F - Tax | $11.30 | -730 | 18.0K | -4% | -$8,249 | |
| D | 2026-02-18 | 2026-02-15 | STEM | Laureles Saul R. | CLO | M - OptEx | — | +1,790 | 25.4K | +8% | — |
| D | 2026-02-18 | 2026-02-15 | STEM | Carlson Michael James | Pres, Managed Services | M - OptEx | — | +1,342 | 18.7K | +8% | — |
| D | 2026-02-18 | 2026-02-15 | STEM | Tappin Matthew | Pres, Software Products | M - OptEx | — | +1,253 | 3,125 | +67% | — |
| 2025-11-24 | 2025-11-11 | STEM | Tappin Matthew | Pres, Software Products | S - Sale | $17.70 | -9,584 | 1,872 | -84% | -$169.6K | |
| 2025-11-19 | 2025-11-18 | STEM | Shukla Rahul | CAO | S - Sale | $16.21 | -3,674 | 0 | -100% | -$59.6K | |
| D | 2025-11-12 | 2025-11-10 | STEM | Laureles Saul R. | CLO | F - Tax | $18.27 | -3,379 | 23.6K | -13% | -$61.7K |
| D | 2025-11-12 | 2025-11-07 | STEM | Laureles Saul R. | CLO | M - OptEx | — | +13.8K | 27.0K | +104% | — |
| D | 2025-11-12 | 2025-11-10 | STEM | Carlson Michael James | Pres, Managed Services | F - Tax | $18.27 | -6,743 | 17.4K | -28% | -$123.2K |
| D | 2025-11-12 | 2025-11-07 | STEM | Carlson Michael James | Pres, Managed Services | M - OptEx | — | +13.8K | 24.1K | +133% | — |
| D | 2025-11-12 | 2025-11-07 | STEM | Tappin Matthew | Pres, Software Products | M - OptEx | — | +15.0K | 16.9K | +801% | — |
| D | 2025-11-12 | 2025-11-10 | STEM | Tappin Matthew | Pres, Software Products | F - Tax | $18.27 | -5,416 | 11.5K | -32% | -$99.0K |
| D | 2025-11-12 | 2025-11-10 | STEM | Shukla Rahul | CAO | F - Tax | $18.27 | -2,076 | 3,674 | -36% | -$37.9K |
| D | 2025-11-12 | 2025-11-07 | STEM | Shukla Rahul | CAO | M - OptEx | — | +5,750 | 5,750 | New | — |
| 2025-07-08 | 2025-07-03 | STEM | BUZBY DAVID S | Dir | G - Gift | $0.00 | -5,511 | 478 | -92% | $0 | |
| I | 2025-07-08 | 2025-07-03 | STEM | BUZBY DAVID S | Dir | G - Gift | $0.00 | +5,511 | 37.6K | +17% | $0 |
| DMT | 2025-06-18 | 2025-05-30+ | STEM | Tappin Matthew | Pres, Software Division | S - Sale+OE | $0.45 | -22.0K | 37.5K | -37% | -$9,894 |
| DT | 2025-06-18 | 2025-05-29 | STEM | Tappin Matthew | Pres, Software Division | M - OptEx | $0.00 | +2,775 | 59.4K | +5% | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | Daley Adam | Dir | M - OptEx | $0.00 | +110.2K | 241.0K | +84% | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | Birns Ira M | Dir | M - OptEx | $0.00 | +110.2K | 134.4K | +456% | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | BUZBY DAVID S | Dir | M - OptEx | $0.00 | +110.2K | 230.0K | +92% | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | TYSON LAURA D | Dir | M - OptEx | $0.00 | +110.2K | 159.7K | +223% | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | Guruswamy Vasudevan | Dir | M - OptEx | $0.00 | +62.2K | 62.2K | New | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | Shivram Krishna | Dir | M - OptEx | $0.00 | +62.2K | 62.2K | New | $0 |
| D | 2025-06-02 | 2025-05-29 | STEM | Tammineedi Anil | Dir | M - OptEx | $0.00 | +110.2K | 159.7K | +223% | $0 |
| DM | 2025-05-06 | 2025-01-23+ | STEM | Shukla Rahul | CAO | S - Sale+OE | $0.5192 | -44.6K | 15.4K | -74% | -$23.2K |
| DM | 2025-05-06 | 2025-01-22+ | STEM | Shukla Rahul | CAO | M - OptEx | $0.00 | +44.6K | 8,000 | New | $0 |
| D | 2025-05-05 | 2025-05-02 | STEM | Laureles Saul R. | CLO | S - Sale+OE | $0.53 | -809 | 264.8K | -0.3% | -$428.77 |
| D | 2025-05-05 | 2025-05-01 | STEM | Laureles Saul R. | CLO | M - OptEx | $0.00 | +3,453 | 265.6K | +1% | $0 |
| DM | 2025-03-17 | 2025-03-06+ | STEM | Tappin Matthew | Pres, Software Division | M - OptEx | $0.00 | +42.6K | 46.2K | +1,165% | $0 |
| DM | 2025-03-17 | 2025-03-07+ | STEM | Tappin Matthew | Pres, Software Division | S - Sale+OE | $0.406 | -18.7K | 56.7K | -25% | -$7,599 |
| DM | 2025-03-17 | 2025-03-06+ | STEM | Laureles Saul R. | CLO | M - OptEx | $0.00 | +76.4K | 203.8K | +60% | $0 |
| D | 2025-03-17 | 2025-03-11 | STEM | Carlson Michael James | COO | M - OptEx | $0.00 | +70.8K | 231.9K | +44% | $0 |
| D | 2025-03-17 | 2025-03-12 | STEM | Carlson Michael James | COO | S - Sale+OE | $0.4 | -27.7K | 204.1K | -12% | -$11.1K |
| D | 2025-02-21 | 2025-02-20 | STEM | Tappin Matthew | Pres, Software Division | S - Sale+OE | $0.63 | -8,130 | 32.8K | -20% | -$5,122 |
| D | 2025-02-21 | 2025-02-19 | STEM | Tappin Matthew | Pres, Software Division | M - OptEx | $0.00 | +24.3K | 41.0K | +146% | $0 |
| D | 2025-02-21 | 2025-02-20 | STEM | Carlson Michael James | COO | M - OptEx | $0.00 | +26.1K | 161.0K | +19% | $0 |
| D | 2025-02-21 | 2025-02-20 | STEM | Laureles Saul R. | CLO | M - OptEx | $0.00 | +34.7K | 185.7K | +23% | $0 |
| D | 2025-02-21 | 2025-02-19 | STEM | Homenock Kim | CHRO | M - OptEx | $0.00 | +22.6K | 184.6K | +14% | $0 |
| D | 2025-02-21 | 2025-02-19 | STEM | Albert Hofeldt | CTO | M - OptEx | $0.00 | +47.1K | 199.2K | +31% | $0 |
| D | 2025-02-21 | 2025-02-20 | STEM | Albert Hofeldt | CTO | S - Sale+OE | $0.63 | -13.3K | 185.9K | -7% | -$8,375 |
| D | 2024-09-30 | 2024-09-26 | STEM | Carlson Michael James | COO | M - OptEx | $0.00 | +6,089 | 135.0K | +5% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | TYSON LAURA D | Dir | M - OptEx | $0.00 | +23.5K | 49.5K | +90% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | Birns Ira M | Dir | M - OptEx | $0.00 | +24.2K | 24.2K | New | $0 |
| AI | 2024-06-10 | 2023-06-20 | STEM | BUZBY DAVID S | Dir | G - Gift | $0.00 | +20.5K | 641.2K | +3% | $0 |
| MA | 2024-06-10 | 2024-03-15+ | STEM | BUZBY DAVID S | Dir | P - Purchase | $1.83 | +96.3K | 62.5K | New | +$176.2K |
| A | 2024-06-10 | 2023-06-20 | STEM | BUZBY DAVID S | Dir | G - Gift | $0.00 | -20.5K | 0 | -100% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | Daley Adam | Dir | M - OptEx | $0.00 | +23.5K | 130.8K | +22% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | Tammineedi Anil | Dir | M - OptEx | $0.00 | +23.5K | 49.5K | +90% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | BUZBY DAVID S | Dir | M - OptEx | $0.00 | +23.5K | 119.8K | +24% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | Woodward Jane | Dir | M - OptEx | $0.00 | +23.5K | 49.5K | +90% | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | Cunningham Gerard | Dir | M - OptEx | $0.00 | +12.1K | 12.1K | New | $0 |
| D | 2024-06-10 | 2024-06-07 | STEM | MORGAN MICHAEL C | Dir | M - OptEx | $0.00 | +23.5K | 44.0K | +115% | $0 |
| 2024-05-30 | 2024-05-28 | STEM | Tappin Matthew | Pres, Asset Management | S - Sale | $1.32 | -1,388 | 16.6K | -8% | -$1,832 | |
| D | 2024-05-28 | 2024-05-24 | STEM | Tappin Matthew | Pres, Asset Management | M - OptEx | $0.00 | +2,775 | 18.0K | +18% | $0 |
| 2024-05-07 | 2024-05-02 | STEM | Carrington John Eugene | CEO, Dir | S - Sale | $1.85 | -194.2K | 506.6K | -28% | -$359.2K | |
| D | 2024-04-30 | 2024-04-30 | STEM | Laureles Saul R. | CLO | S - Sale+OE | $1.87 | -822 | 151.0K | -0.5% | -$1,537 |
| D | 2024-04-30 | 2024-04-28 | STEM | Laureles Saul R. | CLO | M - OptEx | $0.00 | +3,453 | 151.8K | +2% | $0 |
| DM | 2024-04-30 | 2024-04-28 | STEM | Carrington John Eugene | CEO, Dir | M - OptEx | $0.00 | +438.4K | 700.8K | +167% | $0 |
| DM | 2024-04-30 | 2024-04-28 | STEM | BUSH WILLIAM JOHN | CFO | M - OptEx | $0.00 | +68.9K | 410.3K | +20% | $0 |
| D | 2024-04-30 | 2024-04-30 | STEM | BUSH WILLIAM JOHN | CFO | S - Sale+OE | $1.87 | -24.0K | 390.2K | -6% | -$44.9K |
| DM | 2024-04-30 | 2024-04-28 | STEM | Russo Alan | Chief Revenue Off | M - OptEx | $0.00 | +69.3K | 232.8K | +42% | $0 |
| D | 2024-04-30 | 2024-04-30 | STEM | Russo Alan | Chief Revenue Off | S - Sale+OE | $1.87 | -24.1K | 212.9K | -10% | -$45.1K |
| D | 2024-04-30 | 2024-04-30 | STEM | Patel Prakesh | Chief Strategy Off | S - Sale+OE | $1.87 | -23.9K | 181.7K | -12% | -$44.6K |
| DM | 2024-04-30 | 2024-04-28 | STEM | Patel Prakesh | Chief Strategy Off | M - OptEx | $0.00 | +68.5K | 202.1K | +51% | $0 |
| 2024-03-20 | 2024-03-19 | STEM | Tappin Matthew | Pres, Asset Management | S - Sale | $1.82 | -26.6K | 15.2K | -64% | -$48.5K | |
| 2024-03-20 | 2024-03-18 | STEM | BUZBY DAVID S | Dir | P - Purchase | $1.81 | +33.8K | 768.4K | +5% | +$61.2K |
Purchase Sale Sale after option exercise All abbreviations