Thomas Sandgaard is CEO & Chairman +2 at ZYNEX INC (ZYXI). They have made 16 open-market trades across 1 company since 2019, most recently 2025-03-13.
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 16 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ZYXI | 12,883,151 | $1.6M |
Shares reported on the most recent Form 4, priced at the 2025-03-17 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 38% | 31% | 19% |
| Avg Move | +3.0% | +6.2% | +30.5% |
| Scored | 16 | 16 | 16 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ZYXI | SELL · 10b5-1 | 2024-11-14 | 2024-11-18 | $8.09 | $16K | +7.8% | +5.8% | -0.8% |
| ZYXI | SELL · 10b5-1 | 2024-11-07 | 2024-11-13 | $8.93 | $89K | +2.2% | -0.2% | -8.3% |
| ZYXI | SELL · 10b5-1 | 2024-11-04 | 2024-11-06 | $8.51 | $51K | -14.4% | -10.9% | -11.6% |
| ZYXI | SELL · 10b5-1 | 2024-10-30 | 2024-11-01 | $8.79 | $53K | -6.2% | -5.2% | -6.8% |
| ZYXI | SELL | 2021-08-06 | 2021-08-10 | $15.17 | $5.4M | -8.0% | -13.5% | -3.6% |
| ZYXI | SELL | 2020-04-29 | 2020-05-01 | $17.10 | $1.7M | +11.6% | +19.4% | +14.4% |
| ZYXI | SELL | 2020-04-24 | 2020-04-28 | $15.77 | $2.4M | +12.3% | +14.7% | +18.2% |
| ZYXI | SELL | 2020-03-05 | 2020-03-06 | $15.11 | $751K | -14.1% | -6.8% | +61.9% |
| ZYXI | SELL | 2020-03-02 | 2020-03-03 | $14.12 | $1.3M | -27.7% | -22.9% | +42.7% |
| ZYXI | SELL | 2019-10-02 | 2019-10-03 | $11.40 | $997K | -1.4% | -24.5% | -34.0% |
| ZYXI | SELL | 2019-08-16 | 2019-08-19 | $10.49 | $2.4M | -11.9% | -8.2% | -10.5% |
| ZYXI | SELL | 2019-06-07 | 2019-06-07 | $8.30 | $242K | +16.6% | +5.2% | +6.9% |
| ZYXI | SELL | 2019-06-07 | 2019-06-10 | $8.89 | $889K | +29.3% | +7.9% | +5.9% |
| ZYXI | SELL | 2019-06-06 | 2019-06-07 | $8.47 | $1.7M | +16.6% | +5.2% | +6.9% |
| ZYXI | SELL | 2019-06-05 | 2019-06-06 | $8.00 | $287K | +17.0% | +11.6% | +9.2% |
| ZYXI | SELL | 2019-05-13 | 2019-05-15 | $7.40 | $190K | -8.2% | +14.1% | +17.9% |
| ZYXI | SELL | 2019-05-08 | 2019-05-10 | $7.25 | $288K | +4.4% | +16.3% | +18.1% |
| ZYXI | SELL | 2019-04-05 | 2019-04-09 | $4.77 | $773K | +3.5% | +40.0% | +83.5% |
| ZYXI | SELL | 2019-03-19 | 2019-03-21 | $4.41 | $423K | +6.1% | +18.4% | +132.7% |
| ZYXI | SELL | 2019-03-14 | 2019-03-18 | $4.50 | $418K | +2.3% | +21.8% | +118.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.