Stem, Inc. (STEM) Insider Trading
Over the last 3 months, STEM insiders made 0 open-market buys and 5 sales, a net sale of -$102K (SEC Form 4). Over the last 6 months, 52 institutions increased and 58 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
5
Net (3m)
-$102.4K
Insider trades by month Buys Sells
Mar
May
Jun
Nov
Feb
Mar
Context3-month price -10%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 4, 2026 | BUZBY DAVID Sdirector | Grant | 12,168 | — |
| Jun 4, 2026 | Daley Adamdirector | Grant | 12,168 | — |
| Jun 4, 2026 | TYSON LAURA Ddirector | Grant | 12,168 | — |
| Jun 4, 2026 | Birns Ira Mdirector | Grant | 12,168 | — |
| Jun 4, 2026 | Shivram Krishnadirector | Grant | 12,168 | — |
| Jun 4, 2026 | Guruswamy Vasudevandirector | Grant | 12,168 | — |
| Jun 4, 2026 | Tammineedi Anildirector | Grant | 12,168 | — |
| Mar 13, 2026 | Tappin Matthewofficer: President, Software Products | Sell | 402 | $10.83 |
| Mar 10, 2026 | Narayanan Arunofficer: Chief Executive Officer | Option | 12,500 | — |
| Mar 10, 2026 | Narayanan Arunofficer: Chief Executive Officer | Sell | 5,145 | $11.12 |
| Mar 10, 2026 | Tappin Matthewofficer: President, Software Products | Sell | 655 | $11.12 |
| Mar 10, 2026 | Laureles Saul R.officer: Chief Legal Officer | Option | 2,916 | — |
| Mar 10, 2026 | Laureles Saul R.officer: Chief Legal Officer | Sell | 942 | $11.12 |
| Mar 10, 2026 | Narayanan Arunofficer: Chief Executive Officer | Option | 5,625 | — |
| Mar 10, 2026 | Carlson Michael Jamesofficer: President, Managed Services | Sell | 2,079 | $11.12 |
| Mar 10, 2026 | Carlson Michael Jamesofficer: President, Managed Services | Option | 3,541 | — |
| Mar 10, 2026 | Tappin Matthewofficer: President, Software Products | Option | 1,458 | — |
| Mar 4, 2026 | Tappin Matthewofficer: President, Software Products | Sell | 185 | $10.00 |
| Mar 4, 2026 | Tappin Matthewofficer: President, Software Products | Sell | 300 | $9.67 |
| Mar 4, 2026 | Laureles Saul R.officer: Chief Legal Officer | Sell | 292 | $9.67 |
| Mar 2, 2026 | Musfeldt Brianofficer: Chief Financial Officer | Grant | 17,200 | — |
| Mar 2, 2026 | Laureles Saul R.officer: Chief Legal Officer | Option | 904 | — |
| Mar 2, 2026 | Tappin Matthewofficer: President, Software Products | Option | 670 | — |
| Mar 2, 2026 | Carlson Michael Jamesofficer: President, Managed Services | Grant | 17,200 | — |
| Mar 2, 2026 | Laureles Saul R.officer: Chief Legal Officer | Grant | 18,000 | — |
| Mar 2, 2026 | Narayanan Arunofficer: Chief Executive Officer | Grant | 38,400 | — |
| Mar 2, 2026 | Narayanan Arunofficer: Chief Executive Officer | Grant | 16,250 | — |
| Mar 2, 2026 | Tappin Matthewofficer: President, Software Products | Grant | 25,800 | — |
| Mar 2, 2026 | Tappin Matthewofficer: President, Software Products | Grant | 17,200 | — |
| Mar 2, 2026 | Laureles Saul R.officer: Chief Legal Officer | Grant | 12,000 | — |
Source: STEM SEC Form 4 filings, latest Jun 4, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their STEM positions over the last 6 months (SEC Form 13F).
Increased
52
New positions
30
Reduced
58
Sold out
40
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| Swiss Life Asset Management Ltd | Unchanged | 720K | Dec 9, 2025 |
| Swiss Life Asset Management Ltd | Increased | 720K | Dec 9, 2025 |
| Swiss Life Asset Management Ltd | Increased | 562K | Dec 9, 2025 |
| Swiss Life Asset Management Ltd | Increased | 441K | Dec 9, 2025 |
| Swiss Life Asset Management Ltd | Increased | 399K | Dec 9, 2025 |
| Swiss Life Asset Management Ltd | Reduced | 397K | Dec 9, 2025 |
| VANGUARD GROUP INC | Increased | 396K | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 344K | May 15, 2026 |
| MARSHALL WACE, LLP | Increased | 291K | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 276K | Feb 17, 2026 |
| Swiss Life Asset Management Ltd | New Position | 249K | Dec 9, 2025 |
| SANCTUARY ADVISORS, LLC | Increased | 229K | Jan 6, 2026 |
| BANK OF AMERICA CORP /DE/ | Increased | 218K | Feb 3, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 175K | May 15, 2026 |
| MARSHALL WACE, LLP | Reduced | 167K | Feb 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.