WallStreetZenWallStreetZen

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

1 of 6

AMPX insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when AMPX insiders and whales buy or sell their stock.

AMPX Shareholders

What type of owners hold Amprius Technologies Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc6.51%9,225,611$142.81MInstitution
Vanguard Capital Management LLC3.47%4,908,875$75.99MInstitution
Jane Street Group LLC2.94%4,160,656$64.41MInstitution
Wen Hsuan Hsieh2.89%4,093,689$63.37MInsider
Driehaus Capital Management LLC2.68%3,794,178$58.73MInstitution
Two Sigma Investments LP2.48%3,506,075$54.27MInstitution
Morgan Stanley2.23%3,162,167$48.95MInstitution
Geode Capital Management LLC1.99%2,814,530$43.57MInstitution
State Street Corp1.92%2,712,630$41.99MInstitution
Amprius Inc1.77%2,500,071$38.70MInsider

1 of 3

AMPX vs Electrical Equipment & Part Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMPX59.75%10.85%Net SellingNet Selling
EOSE60.26%9.05%Net SellingNet Buying
TE60.37%39.63%Net BuyingNet Selling
ATKR95.79%3.35%Net SellingNet Selling
PLPC39.39%60.61%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 59.75% institutional shareholders, 10.85% Amprius Technologies insiders, and 29.40% retail investors. Wen Hsuan Hsieh is the largest individual Amprius Technologies shareholder, owning 4.09M shares representing 2.89% of the company. Wen Hsuan Hsieh's Amprius Technologies shares are currently valued at $61.69M.

If you're new to stock investing, here's how to buy Amprius Technologies stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.