Amprius Technologies, Inc.

NYSE:AMPX Stock Report

Market Cap: US$1.5b

Amprius Technologies Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:AMPX Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
15 Jun 26SellUS$1,459,212Donald DixonIndividual85,000US$17.17
09 Jun 26SellUS$765,200Donald DixonIndividual40,000US$19.13
04 Jun 26SellUS$41,940Thomas StepienIndividual2,000US$20.97
27 May 26SellUS$55,157Constantin StefanIndividual3,208US$17.19
27 May 26SellUS$75,222Thomas StepienIndividual4,375US$17.19
27 May 26SellUS$6,121Kang SunIndividual356US$17.19
26 May 26SellUS$320,252Donald DixonIndividual17,895US$17.90
21 May 26SellUS$897,685Thomas StepienIndividual60,702US$14.79
21 May 26SellUS$426,083Constantin StefanIndividual28,812US$14.79
21 May 26SellUS$1,002,594Kang SunIndividual67,796US$14.79
12 Mar 26SellUS$2,607,958Wen Hsuan HsiehIndividual142,895US$18.55
10 Mar 26SellUS$1,119,769Steven ChuIndividual62,500US$17.92
23 Feb 26SellUS$257,604Constantin StefanIndividual25,366US$10.16
23 Feb 26SellUS$622,035Kang SunIndividual61,251US$10.16
21 Nov 25SellUS$692,132Kang SunIndividual68,655US$10.08
21 Nov 25SellUS$252,274Constantin StefanIndividual25,024US$10.08

Insider Trading Volume

Insider Buying: AMPX insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of AMPX?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders3,866,2732.65%
General Public33,749,89123.1%
Institutions108,464,45474.2%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 16.8%.

Top Shareholders

Top 25 shareholders own 49.96% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
7.76%
BlackRock, Inc.
11,335,092US$117.2m22.9%no data
4.49%
Vanguard Capital Management, LLC
6,552,676US$67.8m13.3%no data
3.45%
Morgan Stanley
5,046,721US$52.2m62.4%no data
2.96%
Two Sigma Investments, LP
4,318,630US$44.7m23.2%0.03%
2.94%
UBS Asset Management AG
4,292,372US$44.4m69.2%no data
2.7%
Kleiner Perkins Caufield & Byers LLC
3,949,245US$40.8m0%2.8%
2.41%
Geode Capital Management, LLC
3,520,655US$36.4m25.1%no data
2.33%
Trident Capital, Inc.
3,406,497US$35.2m0%100.0%
2.33%
Jane Street Group, LLC
3,401,071US$35.2m-18.3%0.02%
2.22%
State Street Investment Management
3,240,285US$33.5m19.5%no data
1.99%
VantagePoint Capital Partners
2,912,992US$30.1m0%100.0%
1.46%
Jupiter Fund Management Plc
2,133,397US$22.1m0%0.05%
1.36%
The Goldman Sachs Group, Inc.
1,981,668US$20.5m2.32%no data
1.2%
LMR Partners LLP
1,750,850US$18.1m0%0.18%
1.15%
Citadel Advisors LLC
1,676,344US$17.3m16.5%0.01%
1.12%
T. Rowe Price Group, Inc.
1,635,883US$16.9m-13.8%no data
1%
Vanguard Portfolio Management, LLC
1,457,629US$15.1m35.8%no data
0.97%
Hood River Capital Management LLC
1,412,516US$14.6m48.8%0.11%
0.96%
Renaissance Technologies LLC
1,408,925US$14.6m292%0.02%
0.92%
Driehaus Capital Management LLC
1,345,269US$13.9m-64.5%0.06%
0.91%
Robert W. Baird & Co. Incorporated
1,324,270US$13.7m-16.4%0.02%
0.85%
Healthcare of Ontario Pension Plan Trust Fund
1,248,700US$12.9m0%0.02%
0.84%
Northern Trust Global Investments
1,229,628US$12.7m20.2%no data
0.83%
Millennium Management LLC
1,208,017US$12.5m16.7%0.01%
0.82%
Deutsche Asset & Wealth Management
1,192,617US$12.3m36.3%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/08/24 07:39
End of Day Share Price 2026/08/21 00:00
Earnings2026/06/30
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Amprius Technologies, Inc. is covered by 11 analysts. 10 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Ryan PfingstB. Riley Securities, Inc.
Derek SoderbergCantor Fitzgerald & Co.
Amit DayalH.C. Wainwright & Co.