NRGV insider buying
2 cluster buysEnergy Vault Holdings, Inc. · Utilities
When two or more insiders at Energy Vault Holdings, Inc. buy NRGV on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in NRGV plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Feb 26 – Mar 31, 2026Detected Mar 31, 2026High conviction5 insidersTotal bought$129.3KMarket cap$734.4M
- Aug 11 – Nov 14, 2025Detected Nov 14, 2025High conviction8 insidersTotal bought$648.3KMarket cap$734.4M
All notable open-market buys in NRGV
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Mar 31, 2026 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 12,500 | $3.21 | $40.1K | SEC ↗ |
| Mar 25, 2026 | Mandanas Mary Bethcluster Director | 5,000 | $3.65 | $18.3K | SEC ↗ |
| Mar 4, 2026 | Ertel Thomas Rcluster Director | 5,450 | $3.37 | $18.4K | SEC ↗ |
| Mar 2, 2026 | Ladwa Akshaycluster Chief Operations Officer | 4,000 | $3.09 | $12.4K | SEC ↗ |
| Feb 27, 2026 | Paulson Larrycluster Director | 5,000 | $3.15 | $15.8K | SEC ↗ |
| Feb 26, 2026 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 7,500 | $3.26 | $24.5K | SEC ↗ |
| Nov 14, 2025 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 10,000 | $3.00 | $30.0K | SEC ↗ |
| Sep 19, 2025 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 17,500 | $3.02 | $52.9K | SEC ↗ |
| Sep 18, 2025 | Paulson Larrycluster Director | 20,000 | $2.40 | $48.0K | SEC ↗ |
| Sep 17, 2025 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 50,000 | $2.30 | $115.0K | SEC ↗ |
| Sep 16, 2025 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 25,000 | $2.21 | $55.3K | SEC ↗ |
| Sep 11, 2025 | Mandanas Mary Bethcluster Director | 10,000 | $2.05 | $20.5K | SEC ↗ |
| Aug 29, 2025 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 22,500 | $1.92 | $43.2K | SEC ↗ |
| Aug 29, 2025 | Hixon Dylancluster Director | 20,000 | $1.92 | $38.4K | SEC ↗ |
| Aug 28, 2025 | Piconi Robertcluster Director, Chief Executive Officer, 10% Owner | 55,000 | $1.71 | $94.1K | SEC ↗ |
| Aug 28, 2025 | Paulson Larrycluster Director | 20,000 | $1.78 | $35.6K | SEC ↗ |
| Aug 28, 2025 | Ertel Thomas Rcluster Director | 11,200 | $1.81 | $20.3K | SEC ↗ |
| Aug 26, 2025 | Fariello Theresa Mcluster Director | 5,000 | $1.71 | $8.6K | SEC ↗ |
| Aug 21, 2025 | Wiese Christophercluster President, Energy Vault Labs | 6,200 | $1.59 | $9.9K | SEC ↗ |
| Aug 14, 2025 | Hixon Dylancluster Director | 20,000 | $1.50 | $30.0K | SEC ↗ |
| Aug 13, 2025 | Paulson Larrycluster Director | 20,000 | $1.38 | $27.6K | SEC ↗ |
| Aug 11, 2025 | Ertel Thomas Rcluster Director | 13,300 | $1.44 | $19.2K | SEC ↗ |
| Nov 22, 2024 | Director, Chief Executive Officer, 10% Owner | 150,000 | $1.57 | $235.5K | SEC ↗ |
| Sep 13, 2024 | Director, Chief Executive Officer, 10% Owner | 300,000 | $0.87 | $261.0K | SEC ↗ |
More Utilities stocks with insider cluster buys
NRGV insider buying — FAQ
- Are insiders buying NRGV stock?
- Yes — 9 distinct insiders have bought NRGV (Energy Vault Holdings, Inc.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Apr 1, 2026.
- How much NRGV stock have insiders bought?
- Insiders have bought a combined $1.3M of NRGV across 24 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in NRGV?
- A cluster buy is two or more distinct Energy Vault Holdings, Inc. insiders — officers, directors, or 10% owners — each buying NRGV on the open market within a rolling window. NRGV has 2 detected cluster buys to date.
- Where does this NRGV insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in NRGV
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy NRGV within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding NRGV.