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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
Kang SunDirector2026-04-011,312,505$1.78
$2.34MBuy
Kang SunDirector2026-04-01249,037$16.78
$4.18MSell
Kang SunDirector2026-04-011,250,963$15.73
$19.68MSell
Kang SunDirector2026-04-01187,495$3.68
$689.98kBuy
Kang SunDirector2026-03-23152,823$18.69
$2.86MSell
Kang SunDirector2026-03-2365,046$19.06
$1.24MSell
Wen Hsuan HsiehDirector2026-03-12130,646$18.22
$2.38MSell
Steven ChuDirector2026-03-1269,422$0.62
$43.04kBuy
Steven ChuDirector2026-03-12100,000$18.65
$1.86MSell
Steven ChuDirector2026-03-1250,000$18.22
$910.75kSell

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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$195.80MInstitution
Vanguard Group Inc5.20%7,128,657$158.18MInstitution
Wen Hsuan Hsieh2.99%4,093,689$90.84MInsider
Morgan Stanley2.05%2,809,821$62.35MInstitution
Geode Capital Management LLC1.95%2,678,417$59.43MInstitution
State Street Corp1.86%2,553,710$56.67MInstitution
Amprius Inc1.82%2,500,071$55.48MInsider
Driehaus Capital Management LLC1.75%2,393,212$53.11MInstitution
Goldman Sachs Group Inc1.60%2,194,841$48.70MInstitution
Goldman Sachs Group Inc 11.60%2,194,841$48.70MInstitution

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AMPX vs Electrical Equipment & Part Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMPX49.43%11.21%Net SellingNet Selling
EOSE51.68%9.01%Net SellingNet Buying
ATKR94.80%3.36%Net SellingNet Selling
PLPC38.52%61.48%Net SellingNet Selling
TE55.37%44.62%Net BuyingNet Selling
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, 11.21% Amprius Technologies insiders, and 39.35% 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 $65.95M.

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