Amprius Technologies (NYSE:AMPX) Shares Up 18.6% Following Better-Than-Expected Earnings

Shares of Amprius Technologies, Inc. (NYSE:AMPX) shot up 18.6% during trading on Thursday following a stronger than expected earnings report. The stock traded as high as $15.05 and last traded at $14.88. 28,358,135 shares changed hands during mid-day trading, an increase of 230% from the average session volume of 8,597,017 shares. The stock had previously closed at $12.55.

The company reported ($0.01) earnings per share for the quarter, beating the consensus estimate of ($0.04) by $0.03. The company had revenue of $25.23 million during the quarter, compared to analysts’ expectations of $22.91 million. Amprius Technologies had a negative return on equity of 25.77% and a negative net margin of 60.30%.Amprius Technologies has set its FY 2026 guidance at –0.060 EPS.

Key Amprius Technologies News

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

• Positive Sentiment: Q4 beat and operational improvement — Amprius posted Q4 revenue of ~$25.2M (≈137% YoY) and the company reported its first positive adjusted EBITDA, beating revenue and EPS expectations. This drove renewed investor confidence. Q4 Results Press Release
• Positive Sentiment: Strong 2026 guidance — Management guided to roughly $125M revenue for FY2026 (≈71% growth) and narrowed the EPS loss outlook (FY26 EPS guidance of about -$0.06 vs. consensus around -$0.12), suggesting continued top‑line acceleration and margin progress. Guidance & Outlook
• Positive Sentiment: Supply‑chain and commercial traction — Amprius is expanding to NDAA‑compliant contract manufacturers (several South Korean partners and one U.S. manufacturer) to support defense and commercial demand, which could unlock higher‑margin government contracts. NDAA Supply Chain Expansion
• Positive Sentiment: Bullish market signals — Elevated call‑option buying and heavy share volume, plus analysts raising targets and incremental institutional buying, have amplified the rally and may fuel momentum in the near term.
• Neutral Sentiment: One‑time charge — The company took a one‑time charge tied to a discontinued Colorado lease as it pivots to contract manufacturing; management says it improves cash‑flow visibility but is a non‑recurring drag on results. One-time Charge Mention
• Negative Sentiment: Still unprofitable and cash‑burning — Despite improvements, Amprius reported a substantial net loss ($24.4M for the period) and negative margins; the company continues to consume cash and remains a growth‑stage, high‑risk investment. Financial Results & Losses
• Negative Sentiment: Volatility and execution risk — Elevated short interest, speculative options flows and a small institutional base make the stock volatile; upside depends on execution (scaling production, margin sustainment) and conversion of pipeline into recurring revenue.

Analyst Ratings Changes

AMPX has been the subject of a number of recent research reports. Cantor Fitzgerald increased their price objective on shares of Amprius Technologies from $12.00 to $16.00 and gave the company an “overweight” rating in a research note on Friday, November 7th. Craig Hallum began coverage on shares of Amprius Technologies in a research note on Monday, February 23rd. They issued a “buy” rating and a $17.00 target price on the stock. Needham & Company LLC initiated coverage on shares of Amprius Technologies in a research note on Thursday, January 29th. They set a “buy” rating and a $20.00 price target for the company. Weiss Ratings reaffirmed a “sell (e+)” rating on shares of Amprius Technologies in a report on Wednesday, January 21st. Finally, Oppenheimer reiterated an “outperform” rating and issued a $17.00 price objective on shares of Amprius Technologies in a research note on Tuesday, December 23rd. Eight analysts have rated the stock with a Buy rating and one has assigned a Sell rating to the company’s stock. According to data from MarketBeat.com, the stock currently has an average rating of “Moderate Buy” and an average target price of $16.63.

Insider Buying and Selling

In other news, CTO Constantin Ionel Stefan sold 492,827 shares of the stock in a transaction on Thursday, January 22nd. The stock was sold at an average price of $12.04, for a total transaction of $5,933,637.08. Following the sale, the chief technology officer owned 748,696 shares in the company, valued at approximately $9,014,299.84. This represents a 39.70% decrease in their ownership of the stock. The sale was disclosed in a document filed with the Securities & Exchange Commission, which is accessible through this link. Also, Director Kang Sun sold 950,548 shares of the firm’s stock in a transaction dated Friday, January 16th. The shares were sold at an average price of $11.07, for a total transaction of $10,522,566.36. Following the completion of the sale, the director owned 1,403,651 shares of the company’s stock, valued at $15,538,416.57. The trade was a 40.38% decrease in their position. The SEC filing for this sale provides additional information. Insiders sold 2,392,269 shares of company stock valued at $26,384,359 in the last quarter. 12.90% of the stock is currently owned by corporate insiders.

Institutional Trading of Amprius Technologies

Several hedge funds have recently modified their holdings of the stock. Bank of America Corp DE lifted its holdings in Amprius Technologies by 31.1% during the 4th quarter. Bank of America Corp DE now owns 12,890 shares of the company’s stock worth $36,000 after buying an additional 3,055 shares in the last quarter. AQR Capital Management LLC lifted its stake in shares of Amprius Technologies by 86.7% during the first quarter. AQR Capital Management LLC now owns 77,764 shares of the company’s stock valued at $208,000 after acquiring an additional 36,116 shares during the period. Millennium Management LLC lifted its stake in shares of Amprius Technologies by 94.5% during the first quarter. Millennium Management LLC now owns 1,396,013 shares of the company’s stock valued at $3,741,000 after acquiring an additional 678,442 shares during the period. Goldman Sachs Group Inc. boosted its holdings in Amprius Technologies by 128.6% in the first quarter. Goldman Sachs Group Inc. now owns 244,646 shares of the company’s stock valued at $656,000 after acquiring an additional 137,640 shares during the last quarter. Finally, Rhumbline Advisers increased its position in Amprius Technologies by 61.1% in the first quarter. Rhumbline Advisers now owns 15,690 shares of the company’s stock worth $42,000 after purchasing an additional 5,951 shares during the period. 5.04% of the stock is owned by institutional investors.

Amprius Technologies Price Performance

The stock has a market capitalization of $1.94 billion, a price-to-earnings ratio of -43.76 and a beta of 3.04. The stock has a 50-day moving average of $10.71 and a 200 day moving average of $10.63.

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.