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Insider · CIK 0001709137

John P. Miller

directorcfoofficer

Files at CEPL (Capstone Green Energy Holdings, Inc.), SPRU (SPRUCE POWER HOLDING CORP). First filing Dec 4, 2024, latest Nov 25, 2025.

John P. Miller files SEC Form 4 as director and CFO at CEPL (Capstone Green Energy Holdings, Inc.), and also at SPRU (SPRUCE POWER HOLDING CORP). Since Dec 4, 2024, John P. Miller has reported 2 open-market buys worth $102k and 0 open-market sells worth $0, the latest filed on Nov 25, 2025.

A track record needs three past buys with six months of prices behind them; John P. Miller has 0, so none is measured yet.

The newest scored trade: bought $50k of CEPL on Nov 25, 2025, filed Nov 25, 2025, scored 54 (moderate). In the last 12 months: 1 buy worth $50k and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
2 / 0
$102k bought, $0 sold

Where the trades landed

Last year at the 2 companies this insider has traded most, with each buy and sell on the bar it happened.

CEPL: Capstone Green Energy Holdings, Inc.

CEPLOct 9, 2026 · close 4.36

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

SPRU: SPRUCE POWER HOLDING CORP

SPRUOct 9, 2026 · close 1.56

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
54Moderate
CEPLbuy 6
Capstone Green Energy Holdings, Inc.
$50k
25,000 shares
+93%-
43Moderate
SPRUbuy 7
SPRUCE POWER HOLDING CORP
$52k
20,000 shares
+33%-

Transactions

Every row this insider has filed, 6 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Sep 1, 2026CEPL
Capstone Green Energy Holdings, Inc.
AGrant or award
Voting Common Stock
+5,357$0.00$057,16440 d ago
Jun 24, 2025SPRU
SPRUCE POWER HOLDING CORP
AGrant or award
Common Stock
+75,000$0.00$0155,593Feb 6, 2026
Nov 25, 2025CEPL
Capstone Green Energy Holdings, Inc.
POpen-market purchase
Voting Common Stock
+25,000$2.00$50k51,807Nov 25, 2025
Aug 12, 2025CEPL
Capstone Green Energy Holdings, Inc.
AGrant or award
Voting Common Stock
+4,149$0.00$026,807Aug 13, 2025
Feb 12, 2025CEPL
Capstone Green Energy Holdings, Inc.
AGrant or award
Voting Common Stock
+12,658$0.00$022,658Feb 14, 2025
Dec 2, 2024SPRU
SPRUCE POWER HOLDING CORP
POpen-market purchase
Common Stock
+20,000$2.62$52k80,593Dec 4, 2024

Questions about John P. Miller

Answered from the filings on this page, as of the latest one.

Is John P. Miller buying or selling?

In the last 12 months John P. Miller reported 1 open-market buy worth $50k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $50k of CEPL on Nov 25, 2025. Grants, option exercises and tax withholding are not counted.

How did John P. Miller's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and John P. Miller has 0.

Where does John P. Miller file Form 4?

John P. Miller has filed Form 4 at CEPL (Capstone Green Energy Holdings, Inc.) as Interim CFO; SPRU (SPRUCE POWER HOLDING CORP). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

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.

John P. Miller: insider trades and track record | InsiderTell