Justin Mirro Biography and Net Worth

Director of Amprius Technologies

Mr. Mirro serves as a member of the board at Wallbox. Mr. Mirro is the Founder and President of Kensington Capital Partners LLC, has advised on over $70 billion of M&A, debt, equity and restructuring transactions for automotive assemblers, suppliers, the aftermarket and dealerships. Mr. Mirro spent almost 20 years as an automotive investment banker for various global banks including The Royal Bank of Canada, Jefferies & Company, Moelis & Company and Salomon Smith Barney. He also brings a vast personal network of industry leaders throughout the automotive supply chain which will assist as Wallbox further expands in North America operationally and with institutional investors. Mr. Mirro is a member of the board of Amprius Technologies (NYSE: AMPX) and former member of the board of Quantumscape (NYSE: QS).

What is Justin E. Mirro's net worth?: The estimated net worth of Justin E. Mirro is at least $14.63 million as of September 5th, 2024. Mr. Mirro owns 1,195,000 shares of Amprius Technologies stock worth more than $14,626,800 as of December 5th. This net worth estimate does not reflect any other assets that Mr. Mirro may own. Learn More about Justin E. Mirro's net worth.
How do I contact Justin E. Mirro?: The corporate mailing address for Mr. Mirro and other Amprius Technologies executives is , , . Amprius Technologies can also be reached via phone at 800-425-8803 and via email at [email protected]. Learn More on Justin E. Mirro's contact information.
Has Justin E. Mirro been buying or selling shares of Amprius Technologies?: Justin E. Mirro has not been actively trading shares of Amprius Technologies during the last ninety days. Most recently, Justin E. Mirro sold 250,000 shares of the business's stock in a transaction on Thursday, September 5th. The shares were sold at an average price of $0.81, for a transaction totalling $202,500.00. Following the completion of the sale, the director now directly owns 1,195,000 shares of the company's stock, valued at $967,950. Learn More on Justin E. Mirro's trading history.
Who are Amprius Technologies' active insiders?: Amprius Technologies' insider roster includes Jonathan Bornstein (Insider), Justin Mirro (Director), Constantin Stefan (CTO), Kang Sun (Chief Executive Officer & Board Director), and Sandra Wallach (CFO). Learn More on Amprius Technologies' active insiders.
Are insiders buying or selling shares of Amprius Technologies?: During the last year, insiders at the sold shares 13 times. They sold a total of 1,399,717 shares worth more than $12,837,479.43. The most recent insider tranaction occured on November, 21st when CTO Constantin Ionel Stefan sold 25,024 shares worth more than $252,241.92. Insiders at Amprius Technologies own 12.9% of the company. Learn More about insider trades at Amprius Technologies.
Information on this page was last updated on 11/21/2025.

Justin E. Mirro Insider Trading History at Amprius Technologies

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/5/2024	Sell	250,000	$0.81	$202,500.00	1,195,000
9/3/2024	Sell	135,000	$1.00	$135,000.00	1,510,000
6/14/2024	Sell	260,000	$1.13	$293,800.00	1,467,142
6/12/2024	Sell	280,000	$1.30	$364,000.00	1,715,000
12/14/2023	Sell	255,000	$3.56	$907,800.00	1,785,000
12/12/2023	Sell	60,000	$3.81	$228,600.00	1,900,000
12/7/2023	Sell	30,000	$3.88	$116,400.00	1,920,000
12/5/2023	Sell	30,000	$4.32	$129,600.00	1,940,000
11/30/2023	Sell	45,000	$4.19	$188,550.00	1,950,000
11/28/2023	Sell	45,000	$3.71	$166,950.00	1,985,000
6/14/2023	Sell	50,000	$9.50	$475,000.00	2,558,142

Justin E. Mirro Buying and Selling Activity at Amprius Technologies

Amprius Technologies Company Overview

Amprius Technologies, Inc. produces and sells ultra-high energy density lithium-ion batteries for mobility applications. The company offers silicon nanowire anode batteries. 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 incorporated in 2008 and is headquartered in Fremont, California.

Today's Range

Now: $12.24

$11.27

$12.49

50 Day Range

MA: $11.99

$10.08

$14.67

2 Week Range

Now: $12.24

$1.63

$16.03

Volume

6,704,899 shs

Average Volume

6,959,221 shs

Market Capitalization

$1.60 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.94