Stefan Constantin Ionel - Net Worth and Insider Trading

Stefan Constantin Ionel Net Worth

The estimated net worth of Stefan Constantin Ionel is at least $7 Million dollars as of 2025-07-24. Stefan Constantin Ionel is the Chief Technology Officer of Amprius Technologies Inc and owns about 866,134 shares of Amprius Technologies Inc (AMPX) stock worth over $7 Million. Details can be seen in Stefan Constantin Ionel's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Stefan Constantin Ionel has not made any transactions after 2025-05-21 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Stefan Constantin Ionel

Stefan Constantin Ionel Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Stefan Constantin Ionel owns 1 companies in total, including Amprius Technologies Inc (AMPX) .

Click here to see the complete history of Stefan Constantin Ionel’s form 4 insider trades.

Insider Ownership Summary of Stefan Constantin Ionel

Ticker	Company	Transaction Date	Type of Owner
AMPX	Amprius Technologies Inc	2025-05-21	Chief Technology Officer

Stefan Constantin Ionel Latest Holdings Summary

Stefan Constantin Ionel currently owns a total of 1 stock. Stefan Constantin Ionel owns 866,134 shares of Amprius Technologies Inc (AMPX) as of May 21, 2025, with a value of $7 Million.

Latest Holdings of Stefan Constantin Ionel

Ticker	Company	Latest Transaction Date	Shares Owned	Current Price ($)	Current Value ($)
AMPX	Amprius Technologies Inc	2025-05-21	866,134	7.80	6,758,444

Holding Weightings of Stefan Constantin Ionel

Stefan Constantin Ionel Form 4 Trading Tracker

According to the SEC Form 4 filings, Stefan Constantin Ionel has made a total of 6 transactions in Amprius Technologies Inc (AMPX) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in Amprius Technologies Inc is the sale of 20,366 shares on May 21, 2025, which brought Stefan Constantin Ionel around $49,489.

Insider Trading History of Stefan Constantin Ionel

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.

Total 0

Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

Stefan Constantin Ionel Trading Performance

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

Stefan Constantin Ionel Ownership Network

Ownership Network List of Stefan Constantin Ionel

No Data

Ownership Network Relation of Stefan Constantin Ionel

Stefan Constantin Ionel Owned Company Details

What does Amprius Technologies Inc do?

Who are the key executives at Amprius Technologies Inc?

Stefan Constantin Ionel is the Chief Technology Officer of Amprius Technologies Inc. Other key executives at Amprius Technologies Inc include Chief Financial Officer Sandra Wallach , director & See Remarks Kang Sun , and Chief Operating Officer Jonathan Bornstein .

Amprius Technologies Inc (AMPX) Insider Trades Summary

Over the past 18 months, Stefan Constantin Ionel made 5 insider transaction in Amprius Technologies Inc (AMPX) with a net sale of 56,200. Other recent insider transactions involving Amprius Technologies Inc (AMPX) include a net sale of 644,762 shares made by Jonathan Bornstein , a net sale of 206,835 shares made by Kang Sun , and a net sale of 99,295 shares made by Sandra Wallach .

In summary, during the past 3 months, insiders sold 117,747 shares of Amprius Technologies Inc (AMPX) in total and bought 0 shares, with a net sale of 117,747 shares. During the past 18 months, 2,536,647 shares of Amprius Technologies Inc (AMPX) were sold and 0 shares were bought by its insiders, resulting in a net sale of 2,536,647 shares.

Amprius Technologies Inc (AMPX)'s detailed insider trading history can be found in Insider Trading Tracker table.

Amprius Technologies Inc Insider Transactions

No Available Data

Stefan Constantin Ionel Mailing Address

Above is the net worth, insider trading, and ownership report for Stefan Constantin Ionel. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Stefan Constantin Ionel's mailing address is: Fremont Ca 94538.

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