Stem, Inc. also files under STPK; those filings are included. Filings under STEM by Stemcells Inc (CIK 0000883975) from Feb 7, 2006 to Jun 17, 2016 belong to a different issuer and are not shown.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 7, 2026 | Shivram Krishna | Director | Option exercise(M) | 7K | — | — |
| Aug 7, 2026 | Buzby David S | Director | Option exercise(M) | 7K | — | $0 |
| Aug 7, 2026 | Buzby David S | Director | Option exercise(M) | 7K | — | — |
| Aug 7, 2026 | Birns Ira M | Director | Option exercise(M) | 7K | — | $0 |
| Aug 7, 2026 | Daley Adam | Director | Option exercise(M) | 7K | — | — |
| Aug 7, 2026 | Shivram Krishna | Director | Option exercise(M) | 7K | — | $0 |
| Aug 7, 2026 | Tammineedi Anil | Director | Option exercise(M) | 7K | — | $0 |
| Aug 7, 2026 | Daley Adam | Director | Option exercise(M) | 7K | — | $0 |
| Aug 7, 2026 | Guruswamy Vasudevan | Director | Option exercise(M) | 7K | — | — |
| Aug 7, 2026 | Tyson Laura D | Director | Grant(A) | 7K | — | — |
| Aug 7, 2026 | Birns Ira M | Director | Option exercise(M) | 7K | — | — |
| Aug 7, 2026 | Guruswamy Vasudevan | Director | Option exercise(M) | 7K | — | $0 |
| Aug 7, 2026 | Tammineedi Anil | Director | Option exercise(M) | 7K | — | — |
| Aug 7, 2026 | Tyson Laura D | Director | Option exercise(M) | 7K | — | $0 |
| Jul 20, 2026 | Musfeldt Brian | Chief Financial Officer | Sell(S) | 996 | $6.11 | $6K |
| Jul 17, 2026 | Musfeldt Brian | Chief Financial Officer | Option exercise(M) | 3K | $6.26 | $21K |
| Jul 17, 2026 | Musfeldt Brian | Chief Financial Officer | Option exercise(M) | 3K | — | $0 |
| Jul 2, 2026 | Narayanan Arun | Chief Executive Officer | Sell(S) | 2K | $7.85 | $16K |
| Jul 2, 2026 | Laureles Saul R. | Chief Legal Officer | Sell(S) | 675 | $7.85 | $5K |
| Jul 2, 2026 | Carlson Michael James | President, Managed Services | Sell(S) | 1K | $7.85 | $11K |
| Jul 2, 2026 | Tappin Matthew | President, Software Products | Sell(S) | 996 | $7.85 | $8K |
| Jun 30, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 3K | — | $0 |
| Jun 30, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 3K | — | $0 |
| Jun 30, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 5K | $7.81 | $39K |
| Jun 30, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 3K | $7.81 | $21K |
| Jun 30, 2026 | Narayanan Arun | Chief Executive Officer | Option exercise(M) | 8K | — | $0 |
| Jun 30, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 5K | $7.81 | $39K |
| Jun 30, 2026 | Narayanan Arun | Chief Executive Officer | Option exercise(M) | 8K | $7.81 | $63K |
| Jun 30, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 3K | $7.81 | $21K |
| Jun 30, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 3K | $7.81 | $21K |
| Jun 30, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 3K | — | $0 |
| Jun 30, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 5K | — | $0 |
| Jun 30, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 5K | — | $0 |
| Jun 30, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 5K | $7.81 | $39K |
| Jun 30, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 5K | — | $0 |
| Jun 3, 2026 | Guruswamy Vasudevan | Director | Grant(A) | 12K | — | $0 |
| Jun 3, 2026 | Tammineedi Anil | Director | Grant(A) | 12K | — | $0 |
| Jun 3, 2026 | Birns Ira M | Director | Grant(A) | 12K | — | $0 |
| Jun 3, 2026 | Buzby David S | Director | Grant(A) | 12K | — | $0 |
| Jun 3, 2026 | Daley Adam | Director | Grant(A) | 12K | — | $0 |
| Jun 3, 2026 | Tyson Laura D | Director | Grant(A) | 12K | — | $0 |
| Jun 3, 2026 | Shivram Krishna | Director | Grant(A) | 12K | — | $0 |
| Mar 11, 2026 | Tappin Matthew | President, Software Products | Sell(S) | 402 | $10.83 | $4K |
| Mar 10, 2026 | Narayanan Arun | Chief Executive Officer | Sell(S) | 5K | $11.12 | $57K |
| Mar 10, 2026 | Tappin Matthew | President, Software Products | Sell(S) | 655 | $11.12 | $7K |
| Mar 10, 2026 | Carlson Michael James | President, Managed Services | Sell(S) | 2K | $11.12 | $23K |
| Mar 10, 2026 | Laureles Saul R. | Chief Legal Officer | Sell(S) | 942 | $11.12 | $10K |
| Mar 7, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 4K | — | — |
| Mar 7, 2026 | Narayanan Arun | Chief Executive Officer | Option exercise(M) | 13K | — | $0 |
| Mar 7, 2026 | Narayanan Arun | Chief Executive Officer | Option exercise(M) | 6K | — | $0 |
| Mar 7, 2026 | Narayanan Arun | Chief Executive Officer | Option exercise(M) | 13K | — | — |
| Mar 7, 2026 | Narayanan Arun | Chief Executive Officer | Option exercise(M) | 6K | — | — |
| Mar 7, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 1K | — | $0 |
| Mar 7, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 1K | — | — |
| Mar 7, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 3K | — | $0 |
| Mar 7, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 3K | — | — |
| Mar 7, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 4K | — | $0 |
| Mar 4, 2026 | Tappin Matthew | President, Software Products | Sell(S) | 185 | $10.00 | $2K |
| Mar 3, 2026 | Laureles Saul R. | Chief Legal Officer | Sell(S) | 292 | $9.67 | $3K |
| Mar 3, 2026 | Tappin Matthew | President, Software Products | Sell(S) | 300 | $9.67 | $3K |
| Mar 1, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 904 | — | $0 |
| Mar 1, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 904 | — | — |
| Mar 1, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 670 | — | $0 |
| Mar 1, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 670 | — | — |
| Feb 26, 2026 | Carlson Michael James | President, Managed Services | Grant(A) | 26K | — | $0 |
| Feb 26, 2026 | Carlson Michael James | President, Managed Services | Grant(A) | 17K | — | $0 |
| Feb 26, 2026 | Laureles Saul R. | Chief Legal Officer | Grant(A) | 18K | — | $0 |
| Feb 26, 2026 | Laureles Saul R. | Chief Legal Officer | Grant(A) | 12K | — | $0 |
| Feb 26, 2026 | Narayanan Arun | Chief Executive Officer | Grant(A) | 38K | — | $0 |
| Feb 26, 2026 | Musfeldt Brian | Chief Financial Officer | Grant(A) | 17K | — | $0 |
| Feb 26, 2026 | Musfeldt Brian | Chief Financial Officer | Grant(A) | 26K | — | $0 |
| Feb 26, 2026 | Narayanan Arun | Chief Executive Officer | Grant(A) | 58K | — | $0 |
| Feb 26, 2026 | Tappin Matthew | President, Software Products | Grant(A) | 17K | — | $0 |
| Feb 26, 2026 | Tappin Matthew | President, Software Products | Grant(A) | 26K | — | $0 |
| Feb 20, 2026 | Tappin Matthew | President, Software Products | Sell(S) | 366 | $11.40 | $4K |
| Feb 19, 2026 | Carlson Michael James | President, Managed Services | Tax withholding(F) | 730 | $11.30 | $8K |
| Feb 19, 2026 | Laureles Saul R. | Chief Legal Officer | Tax withholding(F) | 536 | $11.30 | $6K |
| Feb 19, 2026 | Tappin Matthew | President, Software Products | Tax withholding(F) | 522 | $11.30 | $6K |
| Feb 15, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 1K | — | $0 |
| Feb 15, 2026 | Carlson Michael James | President, Managed Services | Option exercise(M) | 1K | — | — |
| Feb 15, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 2K | — | — |
| Feb 15, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 1K | — | $0 |
| Feb 15, 2026 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 2K | — | $0 |
| Feb 15, 2026 | Tappin Matthew | President, Software Products | Option exercise(M) | 1K | — | — |
| Jan 5, 2026 | Cabot Jeffrey T | Chief Accounting Officer | Grant(A) | 7K | — | $0 |
| Jan 5, 2026 | Cabot Jeffrey T | Chief Accounting Officer | Grant(A) | 4K | — | $0 |
| Jan 5, 2026 | Cabot Jeffrey T | Chief Accounting Officer | Grant(A) | 4K | — | $0 |
| Nov 18, 2025 | Shukla Rahul | Chief Accounting Officer | Sell(S) | 4K | $16.21 | $60K |
| Nov 11, 2025 | Tappin Matthew | President, Software Products | Sell(S) | 10K | $17.70 | $170K |
| Nov 10, 2025 | Shukla Rahul | Chief Accounting Officer | Tax withholding(F) | 2K | $18.27 | $38K |
| Nov 10, 2025 | Laureles Saul R. | Chief Legal Officer | Tax withholding(F) | 3K | $18.27 | $62K |
| Nov 10, 2025 | Tappin Matthew | President, Software Products | Tax withholding(F) | 5K | $18.27 | $99K |
| Nov 10, 2025 | Carlson Michael James | President, Managed Services | Tax withholding(F) | 7K | $18.27 | $123K |
| Nov 7, 2025 | Shukla Rahul | Chief Accounting Officer | Option exercise(M) | 6K | — | $0 |
| Nov 7, 2025 | Shukla Rahul | Chief Accounting Officer | Option exercise(M) | 6K | — | — |
| Nov 7, 2025 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 14K | — | $0 |
| Nov 7, 2025 | Laureles Saul R. | Chief Legal Officer | Option exercise(M) | 14K | — | — |
| Nov 7, 2025 | Carlson Michael James | President, Managed Services | Option exercise(M) | 14K | — | — |
| Nov 7, 2025 | Tappin Matthew | President, Software Products | Option exercise(M) | 15K | — | $0 |
| Nov 7, 2025 | Tappin Matthew | President, Software Products | Option exercise(M) | 15K | — | — |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: Stem, Inc., SEC CIK 0001758766. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under STEM and shows every filing by that issuer (also filed as STPK). Earlier filings under the same symbol by another issuer are left out.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-12. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for STEM