Kyle Teamey is Director at ESS Tech, Inc. (GWH). They have made 5 open-market trades across 1 company since 2023, most recently 2025-10-13.
CIK 0001884670
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.
5 open-market purchases totalling $10K since 2023, never a sale. Across 5 scored buys the stock is up 3.6% at ninety days, and 4.5 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| GWH | 38,740 | $6K |
Shares reported on the most recent Form 4, priced at the 2025-10-15 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 20% | 20% | 20% |
| Avg Move | -0.6% | +10.4% | +3.6% |
| Alpha | -1.4% | +6.1% | -4.5% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GWH | BUY | 2024-08-30 | 2024-09-03 | $6.73 | $956 | -20.9% | -8.5% | -8.6% |
| GWH | BUY | 2024-05-14 | 2024-05-15 | $0.79 | $988 | -0.8% | -6.3% | -16.7% |
| GWH | BUY | 2023-11-13 | 2023-11-13 | $1.11 | $1K | -2.5% | +0.0% | -14.9% |
| GWH | BUY | 2023-05-15 | 2023-05-16 | $0.84 | $3K | +41.3% | +83.8% | +63.7% |
| GWH | BUY | 2023-03-07 | 2023-03-07 | $1.61 | $4K | -20.1% | -17.3% | -5.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.