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EdgarHawk

Mandanas Mary Beth

Director

Director
2 filings analyzed · 1 company · Latest 2026-03-26

Companies

Company Buys Sells Direction
Energy Vault Holdings, Inc. NRGV 2 0 Net buying

Activity

March 2026
high
Buy
5,000 shares
$18,250
Significance 6/10

Director Mandanas Mary Beth buys 5,000 shares of NRGV at $3.65; stock down -42.0% from 52-week high but +13.9% in 30 days

Director Mandanas Mary Beth purchased 5,000 shares at $3.65 on 2026-03-25, expanding her holdings to 350,838 shares (+1.4%). The purchase occurs with the stock trading at $3.52, down -42.0% from its 52-week high of $6.07 but up +13.9% over the past 30 days. Notably, her prior purchase at this same ticker on 2025-09-11 delivered a +62.8% 30-day return and +127.1% 90-day return, establishing a track record of well-timed entry points at NRGV. The company reports substantial revenue growth of +340.9% year-over-year and a current market cap of $608.9M, though it remains unprofitable with a net loss of $-26.8M in the latest quarter. The timing context suggests an insider buying during a period of recent price recovery following a significant drawdown from peak valuations.

September 2025
high
Buy
10,000 shares
$20,520
Significance 6/10

Director Mandanas buys 10.0K shares of NRGV at $2.05 amid cluster of 2 insider buys in 14 days; stock +166.6% in 90 days

Mary Beth Mandanas, a Director, purchased 10,000 shares at $2.05 on 2025-09-11, increasing her holdings by 5.7% to 184.7K shares post-transaction. This buy occurs as part of a broader cluster pattern: two other insiders have also purchased within the past 14 days, suggesting coordinated or independently motivated board-level confidence. The stock has rallied sharply—up 166.6% over 90 days and 56.8% over 30 days—though it remains 9.5% below its 52-week high of $2.53. However, this valuation recovery occurs against deteriorating fundamentals: the company generated only $8.5M in quarterly revenue (down 86.5% year-over-year) and reported a full-year net loss of $34.9M, with market cap of $370.6M. The timing of this insider cluster buy during a steep recovery in an unprofitable company with collapsing revenue warrants scrutiny into whether the board views the downturn as temporary or if other factors—such as strategic developments or financing—are driving the purchases.

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