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NYSE: AMPX
Amprius Technologies Inc Stock Ownership - Who owns Amprius Technologies?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Amprius Technologies Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Steven ChuDirector2026-03-1286,143$2.61
$224.83kBuy
Steven ChuDirector2026-03-12100,000$18.65
$1.86MSell
Steven ChuDirector2026-03-1250,000$18.22
$910.75kSell
Steven ChuDirector2026-03-125,565$18.54
$103.15kSell
Wen Hsuan HsiehDirector2026-03-12270,251$2.61
$705.36kBuy
Wen Hsuan HsiehDirector2026-03-12282,500$18.55
$5.24MSell
Wen Hsuan HsiehDirector2026-03-12130,646$18.22
$2.38MSell
Steven ChuDirector2026-03-1269,422$0.62
$43.04kBuy
Steven ChuDirector2026-03-10166,632$17.92
$2.99MSell
Steven ChuDirector2026-03-10104,132$0.62
$64.56kBuy

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Net Insider Buy/Sell (L12M) Ownership

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AMPX Shareholders

What type of owners hold Amprius Technologies Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc6.44%8,823,779$160.59MInstitution
Vanguard Group Inc5.20%7,128,657$129.74MInstitution
Wen Hsuan Hsieh2.99%4,093,689$74.51MInsider
Morgan Stanley2.05%2,809,821$51.14MInstitution
Geode Capital Management LLC1.95%2,678,417$48.75MInstitution
State Street Corp1.86%2,553,710$46.48MInstitution
Amprius Inc1.82%2,500,071$45.50MInsider
Driehaus Capital Management LLC1.75%2,393,212$43.56MInstitution
Goldman Sachs Group Inc1.60%2,194,841$39.95MInstitution
Ubs Group Ag1.53%2,098,946$38.20MInstitution

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AMPX vs Electrical Equipment & Part Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMPX49.43%11.37%Net SellingNet Selling
HAYW59.80%40.20%Net SellingNet Selling
ATKR94.85%3.37%Net SellingNet Selling
PLUG46.70%6.21%Net BuyingNet Buying
EOSE51.68%9.01%Net SellingNet Buying
View Top Electrical Equipment & Part Stocks

Amprius Technologies Stock Ownership FAQ

Who owns Amprius Technologies?

Amprius Technologies (NYSE: AMPX) is owned by 49.43% institutional shareholders, 11.37% Amprius Technologies insiders, and 39.20% retail investors. Wen Hsuan Hsieh is the largest individual Amprius Technologies shareholder, owning 4.09M shares representing 2.99% of the company. Wen Hsuan Hsieh's Amprius Technologies shares are currently valued at $74.51M.

If you're new to stock investing, here's how to buy Amprius Technologies stock.
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