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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
Sandra WallachChief Financial Officer2025-08-2128,390$6.82
$193.51kSell
Constantin Ionel StefanChief Technology Officer2025-08-2119,159$6.82
$130.59kSell
Kang SunChief Executive Officer2025-08-2165,654$6.82
$447.50kSell
Kang SunChief Executive Officer2025-05-2169,786$2.43
$169.72kSell
Sandra WallachChief Financial Officer2025-05-2127,595$2.43
$67.11kSell
Constantin Ionel StefanChief Technology Officer2025-05-2120,366$2.43
$49.53kSell
Constantin Ionel StefanChief Technology Officer2025-03-143,471$0.98
$3.40kBuy
Jonathan BornsteinPresident of Amprius Lab2025-03-103,471$0.98
$3.40kBuy
Sandra WallachChief Financial Officer2025-02-2118,142$3.13
$56.84kSell
Constantin Ionel StefanChief Technology Officer2025-02-219,066$3.13
$28.40kSell

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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 Inc4.37%5,270,018$42.85MInstitution
Vanguard Group Inc3.94%4,755,225$38.66MInstitution
Wen Hsuan Hsieh3.51%4,236,584$34.44MInsider
Millennium Management LLC3.00%3,616,380$29.40MInstitution
Amprius Inc2.07%2,500,071$20.33MInsider
Morgan Stanley1.60%1,933,627$15.72MInstitution
Kang Sun1.45%1,746,581$14.20MInsider
Geode Capital Management LLC1.32%1,593,607$12.96MInstitution
Jonathan Bornstein1.23%1,485,025$12.07MInsider
Two Sigma Investments LP1.17%1,411,608$11.48MInstitution

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AMPX vs Electrical Equipment & Part Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMPX31.58%12.30%Net SellingNet Selling
PLPC36.83%63.17%Net SellingNet Selling
MVST23.17%31.29%
KE75.97%7.37%Net SellingNet Selling
SLDP26.96%35.18%Net SellingNet Selling
View Top Electrical Equipment & Part Stocks

Amprius Technologies Stock Ownership FAQ

Who owns Amprius Technologies?

Amprius Technologies (NYSE: AMPX) is owned by 31.58% institutional shareholders, 12.30% Amprius Technologies insiders, and 56.12% retail investors. Wen Hsuan Hsieh is the largest individual Amprius Technologies shareholder, owning 4.24M shares representing 3.51% of the company. Wen Hsuan Hsieh's Amprius Technologies shares are currently valued at $35.46M.

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