Amprius Technologies (NYSE:AMPX) Shares Down 4.5% – Here’s What Happened

Shares of Amprius Technologies, Inc. (NYSE:AMPX) traded down 4.5% during trading on Thursday . The company traded as low as $10.76 and last traded at $11.1960. 9,292,387 shares changed hands during mid-day trading, an increase of 10% from the average daily volume of 8,417,095 shares. The stock had previously closed at $11.72.

Key Headlines Impacting Amprius Technologies

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

• Positive Sentiment: Amprius reported record second-quarter revenue of approximately $34 million, representing roughly 125% year-over-year growth, and raised its 2026 outlook to at least $140 million in revenue and at least a 28% gross margin. Management cited stronger SiCore demand, European sales, improved manufacturing economics and growing defense-drone applications. AMPX Q2 Earnings Call Highlights Higher Guidance and Drone Demand
• Positive Sentiment: Management also highlighted expanded NDAA-compliant manufacturing capacity, which could improve Amprius’ ability to serve U.S. defense customers and support future volume growth. Amprius Technologies Q2 2026 Earnings Call Highlights
• Positive Sentiment: Northland Securities raised its FY2027 EPS forecast to $0.08 from $0.05 and increased its estimates for the third and fourth quarters of 2027, signaling greater confidence in the company’s path toward profitability. Clear Street also maintained its Buy rating. Clear Street Keeps Their Buy Rating on Amprius Technologies
• Neutral Sentiment: Zacks Research upgraded Amprius from “strong sell” to “hold,” reflecting a less bearish view but not a bullish recommendation. Zacks.com
• Negative Sentiment: HC Wainwright lowered its FY2028 EPS estimate to $0.16 from $0.18. Analysts and investors also continue to view the second half of 2026 as a key test for converting demand and new capacity into sustainable margins and earnings. Amprius Q2 Growth Thesis and Second-Half Outlook

Wall Street Analyst Weigh In

A number of analysts have recently issued reports on AMPX shares. Zacks Research upgraded Amprius Technologies from a “strong sell” rating to a “hold” rating in a research report on Tuesday. Roth Capital reaffirmed a “buy” rating on shares of Amprius Technologies in a research report on Friday, May 8th. JonesTrading started coverage on shares of Amprius Technologies in a research note on Friday, July 10th. They set a “buy” rating and a $30.00 price target on the stock. Northland Securities set a $24.00 price target on shares of Amprius Technologies in a report on Monday, May 11th. Finally, Clear Str initiated coverage on shares of Amprius Technologies in a report on Tuesday, June 2nd. They issued a “strong-buy” rating and a $33.00 price target on the stock. One investment analyst has rated the stock with a Strong Buy rating, eight have assigned a Buy rating, one has issued a Hold rating and one has assigned a Sell rating to the company’s stock. According to data from MarketBeat, Amprius Technologies currently has an average rating of “Moderate Buy” and an average target price of $23.00.

Amprius Technologies Stock Up 5.9%

The stock has a market cap of $1.68 billion, a price-to-earnings ratio of -40.88 and a beta of 2.33. The company’s 50-day moving average is $13.48 and its 200-day moving average is $14.91.

Amprius Technologies (NYSE:AMPX) last released its quarterly earnings data 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 35.16% and a negative return on equity of 13.23%. The company had revenue of $28.54 million for the quarter, compared to analyst estimates of $25.72 million. On average, research analysts forecast that Amprius Technologies, Inc. will post -0.07 earnings per share for the current year.

Insider Buying and Selling

In related news, Director Kang Sun sold 67,796 shares of the stock in a transaction dated Thursday, May 21st. The shares were sold at an average price of $14.79, for a total transaction of $1,002,702.84. Following the completion of the sale, the director owned 1,280,854 shares in the company, valued at $18,943,830.66. This trade represents a 5.03% decrease in their position. The sale was disclosed in a document filed with the SEC, which is available through the SEC website. The sale was made to cover tax withholding obligations related to the vesting of equity awards. Also, CTO Constantin Ionel Stefan sold 28,812 shares of the stock in a transaction that occurred on Thursday, May 21st. The shares were sold at an average price of $14.79, for a total transaction of $426,129.48. Following the sale, the chief technology officer directly owned 804,518 shares in the company, valued at $11,898,821.22. This trade represents a 3.46% decrease in their ownership of the stock. The SEC filing for this sale provides additional information. The sale was made to cover tax withholding obligations related to the vesting of equity awards. Insiders have sold 310,144 shares of company stock worth $5,049,997 over the last 90 days. Corporate insiders own 5.10% of the company’s stock.

Institutional Investors Weigh In On Amprius Technologies

A number of institutional investors and hedge funds have recently added to or reduced their stakes in the stock. Voloridge Investment Management LLC bought a new stake in shares of Amprius Technologies in the 3rd quarter valued at about $19,737,000. BNP Paribas Financial Markets boosted its stake in Amprius Technologies by 1,117.9% during the 3rd quarter. BNP Paribas Financial Markets now owns 1,943,905 shares of the company’s stock worth $20,450,000 after acquiring an additional 1,784,291 shares during the last quarter. Norges Bank bought a new position in Amprius Technologies during the 4th quarter worth approximately $10,295,000. Invesco Ltd. grew its holdings in Amprius Technologies by 113.3% during the third quarter. Invesco Ltd. now owns 2,379,384 shares of the company’s stock valued at $25,031,000 after purchasing an additional 1,263,846 shares during the period. Finally, JPMorgan Chase & Co. grew its holdings in Amprius Technologies by 12,063.3% during the second quarter. JPMorgan Chase & Co. now owns 1,017,217 shares of the company’s stock valued at $4,282,000 after purchasing an additional 1,008,854 shares during the period. Institutional investors own 5.04% of the company’s stock.

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.