Profile
| Role | Director |
|---|---|
| Notability | 20/100 |
Board memberships
- Energy Vault Holdings, Inc.
Updated Jul 16, 2026
Ertel Thomas R has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $58K. Historical track record: 4/5 stars across 3 tracked purchases.
| Role | Director |
|---|---|
| Notability | 20/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★★☆ (4/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 6667% |
| 90-day win rate | 10000% |
| Avg 5-day return | +363.14% |
| Avg 30-day return | +2916.14% |
| Avg 90-day return | +10006.28% |
| Best 30-day return | +5894.74% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-01 | NRGV | Energy Vault Holdings, Inc. | A — Grant or award | 22.0K | $0.00 | |
| 2026-03-05 | NRGV | Energy Vault Holdings, Inc. | P — Open-market purchase | 5.5K | $3.37 | $18K |
| 2025-09-16 | NRGV | Energy Vault Holdings, Inc. | A — Grant or award | 161.1K | $0.00 | |
| 2025-08-28 | NRGV | Energy Vault Holdings, Inc. | P — Open-market purchase | 11.2K | $1.81 | $20K |
| 2025-08-11 | NRGV | Energy Vault Holdings, Inc. | P — Open-market purchase | 13.3K | $1.44 | $19K |
Ertel Thomas R is a corporate insider — currently tracked as Director of Energy Vault Holdings, Inc. (NRGV). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 3 open-market purchases ($58K) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, Ertel Thomas R averaged +2916.1% avg 30-day return with a 6667% 30-day win rate. InsiderAlpha rates the track record at 4/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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