AMPX

Amprius Technologies Inc.

AMPX.US amprius.com
9.55
-0.32 (-3.24%)
USD · NYSE
52-week range
7.71
24.23
Trading at 11% of the 52-week range
Market Cap
1.40B
P/E Ratio
0.00
Forward P/E
163.93
Book Value
0.86
Div. Yield
N/A
% Institutions
69.57%
% Insiders
4.36%

1 Year

+29.6%

3 Year

+171.3%

10 Year

-4.5%
Description

Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications. The company provides silicon anode lithium-ion batteries under the SiCore and SiMaxx product platforms. Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. The company was founded in 2008 and is headquartered in Fremont, California.

Company Information

Company Name
Amprius Technologies Inc.
Sector
Industrials
Industry
Electrical Equipment & Parts
Exchange
NYSE
ISIN: US03214Q1085
CIK: 0001899287
CUSIP: 03214Q108
Currency: USD
Full Time Employees: 97
Phone: 800 425 8803
Website: amprius.com
Fiscal Year End: December
IPO Date: Sep 15, 2022
Description:

Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications. The company provides silicon anode lithium-ion batteries under the SiCore and SiMaxx product platforms. Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. The company was founded in 2008 and is headquartered in Fremont, California.

Address:

1180 Page Avenue, Fremont, CA, United States, 94538

People

Directors & Officers

Name Title Year Born
Mr. Thomas Michael Stepien CEO, President & Director 1961
Mr. Ricardo C. Rodriguez CFO & Corporate Secretary 1985
Dr. Kang Sun Ph.D. Executive Advisor & Director 1955
Dr. Constantin Ionel Stefan Chief Technology Officer 1973
Ms. Siyu Jiang Vice President of Legal Affairs NA
Mr. Scott Zafiropoulo Senior Director of Marketing NA
Ms. Anne Torricelli Vice President of Sales NA
Mr. Ronnie Tao Chief Business Officer NA

Insider Trading

Date Insider Name Title Transaction Type Shares Price Value
Apr 01, 2026 Kang Sun N/A Sale 1.50M $15.91 $23.87M
Mar 23, 2026 Kang Sun N/A Sale 217.87K $18.80 $4.10M
Mar 12, 2026 Steven Chu N/A Sale 155.57K $18.50 $2.88M
Mar 12, 2026 Wen Hsuan Hsieh N/A Sale 413.15K $18.44 $7.62M
Mar 10, 2026 Steven Chu N/A Sale 166.63K $17.92 $2.99M
Feb 23, 2026 Constantin Ionel Stefan N/A Sale 25.37K $10.16 $257.72K
Feb 23, 2026 Kang Sun N/A Sale 61.25K $10.16 $622.31K
Jan 28, 2026 Constantin Ionel Stefan N/A Sale 39.69K $12.00 $476.28K
Jan 23, 2026 Constantin Ionel Stefan N/A Sale 1.60K $12.00 $19.20K
Jan 22, 2026 Constantin Ionel Stefan N/A Sale 492.83K $12.04 $5.93M
Jan 21, 2026 Constantin Ionel Stefan N/A Sale 73.28K $12.00 $879.36K
Jan 20, 2026 Kang Sun N/A Sale 43.19K $11.03 $476.33K
Jan 16, 2026 Kang Sun N/A Sale 950.55K $11.07 $10.52M
Jan 12, 2026 Kang Sun N/A Sale 506.27K $10.10 $5.11M
Dec 11, 2025 Constantin Ionel Stefan N/A Sale 198.26K $10.51 $2.08M
Nov 21, 2025 Constantin Ionel Stefan N/A Sale 25.02K $10.08 $252.24K
Nov 21, 2025 Kang Sun N/A Sale 68.66K $10.08 $692.04K
Nov 17, 2025 Kang Sun N/A Sale 1.00M $10.60 $10.60M
Aug 21, 2025 Constantin Ionel Stefan N/A Sale 19.16K $6.82 $130.66K
Aug 21, 2025 Kang Sun N/A Sale 65.65K $6.82 $447.76K

Shareholders

Institutional Holders

Holder Name Shares Date Reported % Out Value % Change
BlackRock Inc 9.23M Mar 31, 2026 6.32% $0.00 4.55%
Vanguard Capital Management, LLC 4.91M Mar 31, 2026 3.36% $0.00 0.00%
Jane Street Group LLC 4.16M Mar 31, 2026 2.85% $0.01 1,849.47%
Driehaus Capital Management LLC 3.79M Mar 31, 2026 2.60% $0.47 58.54%
Two Sigma Investments LLC 3.51M Mar 31, 2026 2.40% $0.05 144.00%
Morgan Stanley - Brokerage Accounts 3.16M Mar 31, 2026 2.16% $0.00 12.54%
Geode Capital Management, LLC 2.81M Mar 31, 2026 1.93% $0.00 5.08%
State Street Corp 2.71M Mar 31, 2026 1.86% $0.00 6.22%
UBS Group AG 2.31M Mar 31, 2026 1.58% $0.01 10.13%
The Goldman Sachs Group Inc 2.23M Mar 31, 2026 1.52% $0.00 1.43%
Jupiter Asset Management Limited 2.13M Jun 30, 2026 1.46% $0.15 0.00%
Massachusetts Financial Services Company 2.02M Mar 31, 2026 1.39% $0.01 0.00%
T. Rowe Price Associates, Inc. 1.90M Mar 31, 2026 1.30% $0.00 2,254.76%
Baird Financial Group, Inc. 1.59M Mar 31, 2026 1.09% $0.04 104.94%
Citadel Advisors Llc 1.44M Mar 31, 2026 0.98% $0.00 216.29%
Marshall Wace Asset Management Ltd 1.23M Mar 31, 2026 0.84% $0.02 0.00%
Qube Research & Technologies 1.23M Mar 31, 2026 0.84% $0.02 40.44%
JPMorgan Chase & Co 1.22M Mar 31, 2026 0.83% $0.00 1,357.40%
Millennium Management LLC 1.21M Jun 30, 2026 0.83% $0.01 16.69%
Vanguard Portfolio Management, LLC 1.07M Mar 31, 2026 0.73% $0.00 0.00%

Fund Holdings

Rank Holder Name Shares Held % of Shares Change Date Reported
1 Vanguard MStar Total Stk Mkt Idx Invest 3.82M 2.62% ▲ 0.00% Jul 31, 2026
2 iShares Russell 2000 ETF 3.53M 2.42% ▼ 0.57% Aug 31, 2026
3 Jupiter Merian Glb Eq Abs Rt I USD Acc 1.86M 1.27% ▲ 0.00% Jun 30, 2026
4 Vanguard Institutional Extnd Mkt Idx Tr 1.63M 1.11% ▲ 0.17% Jul 31, 2026
5 Fidelity Small Cap Index 1.49M 1.02% ▲ 29.70% Jun 30, 2026
6 iShares Russell 2000 Growth ETF 1.28M 0.88% ▲ 0.00% Aug 31, 2026
7 Xtrackers MSCI USA Swap ETF 1C 994.45K 0.68% ▼ 0.47% Dec 31, 2025
8 US Small-Cap Growth II Equity Comp 949.40K 0.65% ▼ 14.62% Jun 30, 2026
9 T. Rowe Price New Horizons 948.91K 0.65% ▼ 0.05% Jul 31, 2026
10 Russell 2000 Equity Index Fund B 885.03K 0.61% ▲ 22.24% Jun 30, 2026

Financial Highlights

Market Cap: $1.40B
EBITDA: $-14.71M
Book Value: $0.86
Earnings/Share: $-0.29
Profit Margin: -33.40%
Operating Margin: -12.63%
ROA (TTM): -8.55%
ROE (TTM): -36.07%
Revenue (TTM): $109.23M
Revenue/Share (TTM): $0.81
Earnings Growth (YOY): 0.00%
Revenue Growth (YOY): 125.90%

Valuation Metrics

Enterprise Value: $1.37B
Trailing P/E: 0.00
Forward P/E: 163.93

Shares Statistics

Shares Outstanding: 146.08M
Shares Float: 142.36M
% Insiders: 4.36%
% Institutions: 69.57%
Short % Float: 15.38%

Stock Price History

1 Year Price History

3 Years Price History

10 Years Price History

Financial Charts

Revenue, Net Income & Operating Cash Flow (Yearly)

Revenue, Net Income & Operating Cash Flow (Quarterly)

Operating Expenses (Yearly)

Operating Expenses (Quarterly)

Balance Sheet (Quarterly)

Assets Breakdown (Yearly)

Assets Breakdown (Quarterly)

Liabilities Breakdown (Yearly)

Liabilities Breakdown (Quarterly)

Income Statement Waterfall

Open full waterfall
Line Item
Step Type
Value
Revenue
adjust
$73.01M
Cost of Goods Sold
adjust
$-64.75M
Gross Profit
subtotal
$8.26M
SG&A
adjust
$-22.96M
R&D
adjust
$-9.43M
Other Operating Expense
adjust
$-22.52M
Operating Income
subtotal
$-46.65M
Other / Non-Operating Items
adjust
$2.62M
Net Income
subtotal
$-44.02M

Earnings Per Share (EPS) History

Financial Ratios

📦 Raw API Data (JSON Explorer)

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