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Insider · CIK 0001045434

Donald R Dixon

director

Files at AMPX (Amprius Technologies, Inc.). First filing May 28, 2026, latest Jun 16, 2026.

Donald R Dixon files SEC Form 4 as director at AMPX (Amprius Technologies, Inc.). Since May 28, 2026, Donald R Dixon has reported 0 open-market buys worth $0 and 3 open-market sells worth $2.5M, the latest filed on Jun 16, 2026.

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

The newest scored trade: sold $1.5M of AMPX on Jun 15, 2026, filed Jun 16, 2026, scored 53 (moderate). In the last 12 months: 0 buys worth $0 and 3 sells worth $2.5M.

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
0 / 3
$0 bought, $2.5M sold

Where the trades landed

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

AMPX: Amprius Technologies, Inc.

AMPXOct 9, 2026 · close 9.44

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
53Moderate
AMPXsell 2
Amprius Technologies, Inc.
$1.5M
85,000 shares
-19%+388% from low-27% from high
52Moderate
AMPXsell 4
Amprius Technologies, Inc.
$765k
40,000 shares
-8%+457% from low-24% from high
44Moderate
AMPXsell 4
Amprius Technologies, Inc.
$320k
17,895 shares
-4%+578% from low-21% from high

Transactions

Every row this insider has filed, 5 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 12, 2026AMPX
Amprius Technologies, Inc.
AGrant or award
Common stock
+10,423$0.00$0280,079Jun 16, 2026
Jun 15, 2026AMPX
Amprius Technologies, Inc.
SOpen-market sale
Common stockindirect: See Footnote
-85,000$17.17$1.5M359,380Jun 16, 2026
Jun 9, 2026AMPX
Amprius Technologies, Inc.
SOpen-market sale
Common stockindirect: See Footnote
-40,000$19.13$765k444,380Jun 11, 2026
May 26, 2026AMPX
Amprius Technologies, Inc.
SOpen-market sale
Common stockindirect: See Footnote
-17,895$17.90$320k484,380May 28, 2026
Jun 13, 2025AMPX
Amprius Technologies, Inc.
AGrant or award
Common stock
+44,444$0.00$0394,656Jun 17, 2025

Questions about Donald R Dixon

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

Is Donald R Dixon buying or selling?

In the last 12 months Donald R Dixon reported 0 open-market buys worth $0 and 3 open-market sells worth $2.5M on SEC Form 4; the latest was sold $1.5M of AMPX on Jun 15, 2026. Grants, option exercises and tax withholding are not counted.

How did Donald R Dixon's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Donald R Dixon has 0.

Where does Donald R Dixon file Form 4?

Donald R Dixon has filed Form 4 at AMPX (Amprius Technologies, Inc.). 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.

Donald R Dixon: insider trades and track record | InsiderTell