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buyWeak cluster of 6

Christopher Wiese bought $9,858 of NRGV

President, Energy Vault Labs at Energy Vault Holdings, Inc.. 6,200 shares at an average of $1.59, traded Aug 21, 2025, filed Aug 21, 2025.

Conviction score
38
Value
$9,858
6,200 shares
Holdings after
1,164,138
+1% from before
From 52-week low
+156%
low $0.63, close $1.61
From 52-week high
-36%
high $2.53, as of Aug 21, 2025

Score components

  • Role
    President
    +20
  • Trade size
    $10k at market
    0
  • Relative to holdings
    Under 1% of holdings (0.5%)
    -5
  • Price context
    36% below the 52-week high
    +8
  • Cluster
    6 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +93.2%, 3m +82.0%, 6m +97.5%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NRGVOct 12, 2026 · close 3.11
Since filing Aug 21, 2025: +93.2%SPY +24.1% · excess +69.1%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001828536-25-000120, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 21, 2025POpen-market purchase
Common Stock
+6,200$1.59$9,8581,164,138Aug 21, 2025

Related signals

Other insiders at Energy Vault Holdings, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
42Moderate
NRGVsell
Energy Vault Holdings, Inc.
Stephanie Unwin
director
$427k
115,000 shares
-39%
56Moderate
NRGVbuy
Energy Vault Holdings, Inc.
Dylan Hixon
director
$107k
27,472 shares
-
55Moderate
NRGVbuy
Energy Vault Holdings, Inc.
Dylan Hixon
director
$320k
85,518 shares
-
0Weak
NRGVsell10b5-1
Energy Vault Holdings, Inc.
Michael Thomas Beer
Chief Financial Officer
$265k
65,000 shares
-6%
0Weak
NRGVsell10b5-1
Energy Vault Holdings, Inc.
Michael Thomas Beer
Chief Financial Officer
$207k
65,000 shares
-6%
47Moderate
NRGVbuy 2
Energy Vault Holdings, Inc.
Robert Piconi
Chief Executive Officer
$40k
12,500 shares
+0%
31Weak
NRGVbuy 2
Energy Vault Holdings, Inc.
Mary Beth Mandanas
director
$18k
5,000 shares
+1%
38Weak
NRGVbuy 4
Energy Vault Holdings, Inc.
Thomas R Ertel
director
$18k
5,450 shares
+2%
38Weak
NRGVbuy 4
Energy Vault Holdings, Inc.
Akshay Ladwa
Chief Operations Officer
$12k
4,000 shares
+0%
38Weak
NRGVbuy 4
Energy Vault Holdings, Inc.
Larry Paulson
director
$16k
5,000 shares
+1%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.