Amprius Technologies (NYSE:AMPX) Shares Down 4.8% - Here's What Happened

Key Points

• Shares fell 4.8% intraday to $16.11 on Thursday, with ~7.14 million shares traded (about 19% below average) after a prior close of $16.92.
• Analysts are broadly positive — eight Buy vs. one Sell — giving a consensus rating of "Moderate Buy" and an average price target of $19.75, with several firms raising targets to $20.00.
• Significant insider selling has occurred (4.65M shares worth ~$65.7M in the last 90 days, including large director sales), while the company beat quarterly EPS and revenue estimates but remains unprofitable (net margin -60.3%, FY2026 guidance EPS -0.060).

Amprius Technologies, Inc. (NYSE:AMPX - Get Free Report)'s stock price dropped 4.8% during trading on Thursday . The stock traded as low as $15.87 and last traded at $16.1050. Approximately 7,144,444 shares traded hands during mid-day trading, a decline of 19% from the average daily volume of 8,815,130 shares. The stock had previously closed at $16.92.

Analyst Upgrades and Downgrades

AMPX has been the subject of several research analyst reports. Weiss Ratings restated a "sell (e+)" rating on shares of Amprius Technologies in a research report on Wednesday, January 21st. Roth Mkm restated a "buy" rating and issued a $20.00 price target (up from $16.00) on shares of Amprius Technologies in a research report on Friday, March 6th. Needham & Company LLC restated a "buy" rating and issued a $20.00 price target on shares of Amprius Technologies in a research report on Tuesday, March 10th. Cantor Fitzgerald upped their price target on shares of Amprius Technologies from $16.00 to $20.00 and gave the company an "overweight" rating in a research report on Friday, March 6th. Finally, Oppenheimer restated an "outperform" rating and issued a $17.00 price target on shares of Amprius Technologies in a research report on Tuesday, December 23rd. Eight equities research analysts have rated the stock with a Buy rating and one has given a Sell rating to the stock. According to MarketBeat.com, the stock presently has an average rating of "Moderate Buy" and an average target price of $19.75.

Amprius Technologies Stock Performance

The stock has a market cap of $2.21 billion, a price-to-earnings ratio of -47.37 and a beta of 2.20. The company's 50 day simple moving average is $14.35 and its two-hundred day simple moving average is $12.25.

Amprius Technologies (NYSE:AMPX - Get Free Report) last released its quarterly earnings data on Wednesday, March 4th. The company reported ($0.01) earnings per share for the quarter, beating the consensus estimate of ($0.04) by $0.03. Amprius Technologies had a negative net margin of 60.30% and a negative return on equity of 24.29%. The firm had revenue of $25.23 million for the quarter, compared to analyst estimates of $22.91 million. Amprius Technologies has set its FY 2026 guidance at --0.060 EPS. On average, equities research analysts predict that Amprius Technologies, Inc. will post -0.45 earnings per share for the current fiscal year.

Insider Buying and Selling at Amprius Technologies

In other news, Director Wen Hsuan Hsieh sold 413,146 shares of the stock in a transaction on Thursday, March 12th. The shares were sold at an average price of $18.44, for a total transaction of $7,618,412.24. Following the transaction, the director owned 44,444 shares in the company, valued at $819,547.36. This represents a 90.29% decrease in their position. The sale was disclosed in a document filed with the SEC, which can be accessed through this hyperlink. Also, Director Steven Chu sold 166,632 shares of the stock in a transaction on Tuesday, March 10th. The stock was sold at an average price of $17.92, for a total transaction of $2,986,045.44. Following the transaction, the director owned 127,339 shares in the company, valued at approximately $2,281,914.88. This trade represents a 56.68% decrease in their position. The disclosure for this sale is available in the SEC filing. In the last 90 days, insiders have sold 4,647,226 shares of company stock worth $65,744,047. Company insiders own 12.90% of the company's stock.

Institutional Inflows and Outflows

A number of hedge funds and other institutional investors have recently bought and sold shares of AMPX. Voloridge Investment Management LLC acquired a new position in Amprius Technologies in the 3rd quarter valued at $19,737,000. BNP Paribas Financial Markets grew its stake in Amprius Technologies by 1,117.9% in the 3rd quarter. BNP Paribas Financial Markets now owns 1,943,905 shares of the company's stock valued at $20,450,000 after buying an additional 1,784,291 shares during the last quarter. Vanguard Group Inc. grew its stake in Amprius Technologies by 37.0% in the 3rd quarter. Vanguard Group Inc. now owns 6,512,620 shares of the company's stock valued at $68,513,000 after buying an additional 1,757,395 shares during the last quarter. Norges Bank acquired a new position in Amprius Technologies in the 4th quarter valued at $10,295,000. Finally, Invesco Ltd. grew its stake in Amprius Technologies by 113.3% in the 3rd quarter. Invesco Ltd. now owns 2,379,384 shares of the company's stock valued at $25,031,000 after buying an additional 1,263,846 shares during the last quarter. 5.04% of the stock is currently owned by institutional investors and hedge funds.

Amprius Technologies Company Profile

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.

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