Amprius Technologies (NYSE:AMPX) CTO Sells $55,145.52 in Stock

Amprius Technologies, Inc. (NYSE:AMPX) CTO Constantin Ionel Stefan sold 3,208 shares of Amprius Technologies stock in a transaction that occurred on Wednesday, May 27th. The shares were sold at an average price of $17.19, for a total transaction of $55,145.52. Following the completion of the sale, the chief technology officer owned 801,310 shares of the company’s stock, valued at approximately $13,774,518.90. The trade was a 0.40% decrease in their ownership of the stock. The transaction was disclosed in a filing with the SEC, which can be accessed through this link. The sale was made to cover tax withholding obligations related to the vesting of equity awards.

Constantin Ionel Stefan also recently made the following trade(s):

• On Thursday, May 21st, Constantin Ionel Stefan sold 28,812 shares of Amprius Technologies stock. The shares were sold at an average price of $14.79, for a total transaction of $426,129.48.

Amprius Technologies Stock Performance

Shares of NYSE AMPX traded up $4.15 during midday trading on Thursday, reaching $21.31. The company’s stock had a trading volume of 26,251,931 shares, compared to its average volume of 9,057,368. Amprius Technologies, Inc. has a fifty-two week low of $2.55 and a fifty-two week high of $22.80. The business’s 50 day moving average price is $18.07 and its two-hundred day moving average price is $13.73. The company has a market cap of $3.02 billion, a P/E ratio of -71.03 and a beta of 2.20.

Amprius Technologies (NYSE:AMPX) last released its quarterly earnings results on Wednesday, May 6th. The company reported ($0.04) earnings per share for the quarter, missing analysts’ consensus estimates of ($0.02) by ($0.02). Amprius Technologies had a negative net margin of 43.98% and a negative return on equity of 17.48%. The business had revenue of $28.54 million during the quarter, compared to analyst estimates of $25.72 million. Amprius Technologies has set its FY 2026 guidance at –0.060 EPS. Sell-side analysts forecast that Amprius Technologies, Inc. will post -0.07 earnings per share for the current fiscal year.

Trending Headlines about Amprius Technologies

Here are the key news stories impacting Amprius Technologies this week:

• Positive Sentiment: Traders bought 46,001 call options on Amprius, a 134% jump above average, suggesting rising speculative demand for upside in AMPX.
• Positive Sentiment: A recent market analysis highlighted Amprius as a June catalyst stock, citing expected updates on capacity, ecosystem development, and backlog, with analysts forecasting roughly 90% revenue growth and continued rapid expansion.
• Neutral Sentiment: Insider selling disclosed this week included director Donald R. Dixon, CEO Thomas M. Stepien, CTO Constantin Ionel Stefan, and director Kang Sun. Several sales were small, and management said some were made to cover tax withholding tied to equity vesting.
• Neutral Sentiment: A research note on the broader silicon anode battery market projected strong long-term growth, which is supportive for Amprius because the company is one of the commercial players in this space.
• Negative Sentiment: Block & Leviton said it is investigating Amprius for potential securities law violations, which could create overhang and legal uncertainty for investors.

Institutional Trading of Amprius Technologies

A number of hedge funds and other institutional investors have recently modified their holdings of the stock. Oppenheimer & Co. Inc. grew its stake in shares of Amprius Technologies by 47.7% in the fourth quarter. Oppenheimer & Co. Inc. now owns 442,090 shares of the company’s stock worth $3,488,000 after purchasing an additional 142,751 shares during the last quarter. Vanguard Group Inc. grew its stake in shares of Amprius Technologies by 37.0% in the third quarter. Vanguard Group Inc. now owns 6,512,620 shares of the company’s stock worth $68,513,000 after purchasing an additional 1,757,395 shares during the last quarter. SG Americas Securities LLC bought a new stake in shares of Amprius Technologies in the fourth quarter worth $2,014,000. Stephens Investment Management Group LLC grew its stake in shares of Amprius Technologies by 33.1% in the fourth quarter. Stephens Investment Management Group LLC now owns 1,441,698 shares of the company’s stock worth $11,375,000 after purchasing an additional 358,791 shares during the last quarter. Finally, Tudor Investment Corp ET AL bought a new stake in shares of Amprius Technologies in the third quarter worth $7,530,000. Institutional investors own 5.04% of the company’s stock.

Analyst Ratings Changes

Several brokerages have commented on AMPX. Roth Mkm restated a “buy” rating on shares of Amprius Technologies in a research report on Friday, May 8th. Northland Securities set a $24.00 price objective on shares of Amprius Technologies in a research report on Monday, May 11th. Weiss Ratings restated a “sell (e+)” rating on shares of Amprius Technologies in a research report on Monday, April 20th. William Blair restated an “outperform” rating on shares of Amprius Technologies in a research report on Friday, March 6th. Finally, Craig Hallum boosted their price objective on shares of Amprius Technologies from $17.00 to $21.00 and gave the company a “buy” rating in a research report on Friday, March 6th. Eight research analysts have rated the stock with a Buy rating and one has issued a Sell rating to the stock. Based on data from MarketBeat, Amprius Technologies presently has an average rating of “Moderate Buy” and an average price target of $20.25.

About Amprius Technologies

Amprius Technologies, Inc (NYSE: AMPX) is a U.S.-based developer of high-energy-density lithium-ion batteries that leverage silicon anode technology to deliver performance levels beyond conventional graphite-based cells. The company’s batteries are designed to offer industry-leading gravimetric energy density, enabling longer run times and reduced weight for portable power applications. Amprius blends advanced materials science and scalable manufacturing processes to commercialize next-generation battery solutions.

At the core of Amprius’ product portfolio are cylindrical and prismatic cells that employ a proprietary silicon nanowire anode, which supports high charge/discharge rates while maintaining cycle life.