🕵️ Neuronetics, Inc. ($STIM)
SEC insider & ownership activity, last 12 months · CIK 1227636 · every row links its SEC filing
Over the last 12 months insiders sold $13.3M against $4.8M of open-market buying. Madryn Asset Management, LP sold $13.0M in discretionary trades (Aug). Madryn Asset Management, LP trimmed 31.4% → 30.3%; Chernett Jorey added 9.9% → 15.2%. No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $4.8M (13 lots) · 4 sellers, $13.3M (13 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Madryn Asset Management, LP | 0 | – | 3 | $13.0M | Aug 8, 2025 |
| Chernett Jorey | 13 | $4.8M | 0 | – | Jul 14, 2026 |
| Keith J. Sullivan | 0 | – | 4 | $193K | Mar 19, 2026 |
| Macan William Andrew | 0 | – | 5 | $56K | Mar 19, 2026 |
| Pfanstiel Steven | 0 | – | 1 | $11K | Mar 19, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Madryn Asset Management, LP | 30.3% | 13D | Mar 2, 2026 | filing ↗ | |
| Madryn Health Advisors II, LP | 27.0% | 13D | Mar 2, 2026 | filing ↗ | |
| Madryn Health Advisors GP II, LLC | 27.0% | 13D | Mar 2, 2026 | filing ↗ | |
| Madryn Health Partners II (CAYMAN MASTER), LP | 24.9% | 13D | Mar 2, 2026 | filing ↗ | |
| Chernett Jorey | 15.2% | 13D | May 19, 2026 | filing ↗ | |
| Parian Ultreia LP | 7.0% | 13G | Mar 17, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Keith J. Sullivan | $54K | Jun 8, 2026 | filing ↗ |
| Macan William Andrew | $21K | Mar 19, 2026 | filing ↗ |
| Keith J. Sullivan | $61K | Mar 19, 2026 | filing ↗ |
| Macan William Andrew | $814 | Mar 4, 2026 | filing ↗ |
| Keith J. Sullivan | $11K | Feb 26, 2026 | filing ↗ |
| Macan William Andrew | $5K | Feb 26, 2026 | filing ↗ |
| Keith J. Sullivan | $56K | Feb 12, 2026 | filing ↗ |
| Macan William Andrew | $23K | Feb 12, 2026 | filing ↗ |
| Macan William Andrew | $5K | Feb 10, 2026 | filing ↗ |
| Keith J. Sullivan | $63K | Feb 10, 2026 | filing ↗ |
| Madryn Health PRTS II (CAY MAST) LP | $10.9M | Aug 8, 2025 | filing ↗ |
| Madryn Health Partners II, LP | $717K | Aug 8, 2025 | filing ↗ |
| Madryn Select Opportunities, LP | $1.4M | Aug 8, 2025 | filing ↗ |
| Furlong Stephen | $403K | Aug 7, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jul 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 9, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 16, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 18, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 31, 2026 | filing ↗ |
| Exit or disposal costs (2.05) | Mar 31, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 31, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 31, 2026 | filing ↗ |
| Earnings (2.02) | Mar 17, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 17, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 2, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 23, 2026 | filing ↗ |
| Earnings (2.02) | Feb 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 10, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 15, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 30, 2025 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |