Mandanas Mary Beth (CIK 1857599) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-01). Recent activity: Buy NRGV (22,026 shares), Buy NRGV (5,000 shares), Buy NRGV (161,132 shares), Buy NRGV (10,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-01 | Energy Vault Holdings, Inc. (NRGV) | Director | Buy | 22,026 | $0 |
| 2026-03-26 | Energy Vault Holdings, Inc. (NRGV) | Director | Buy | 5,000 | $18,250 |
| 2025-09-18 | Energy Vault Holdings, Inc. (NRGV) | Director | Buy | 161,132 | $0 |
| 2025-09-12 | Energy Vault Holdings, Inc. (NRGV) | Director | Buy | 10,000 | $20,500 |
Source: SEC Form 4 filings · as of 2026-06-01