70,981 Shares in Amprius Technologies, Inc. $AMPX Acquired by Picton Mahoney Asset Management

Key Points

• Picton Mahoney acquired a new stake of 70,981 shares (~$746,000) in Amprius, part of broader institutional buying that includes Vanguard raising its position to 6.51M shares and total institutional ownership of about 5.04%.
• Q4 results and guidance surprised to the upside: revenue rose to $25.23M (137% YoY) with a smaller-than-expected loss and the company's first positive quarterly adjusted EBITDA, and management issued FY2026 guidance targeting at least $125M in revenue, prompting analyst upgrades and higher price targets.
• Risks remain: Amprius is still unprofitable on a GAAP basis with negative margins and analyst forecasts of negative EPS, and insiders have sold roughly 2.39M shares in the past 90 days (insiders now own 12.9%), which could pressure sentiment despite the rally.

Picton Mahoney Asset Management bought a new stake in Amprius Technologies, Inc. (NYSE:AMPX - Free Report) during the third quarter, according to the company in its most recent 13F filing with the Securities and Exchange Commission (SEC). The firm bought 70,981 shares of the company's stock, valued at approximately $746,000. Picton Mahoney Asset Management owned approximately 0.06% of Amprius Technologies at the end of the most recent reporting period.

A number of other hedge funds and other institutional investors have also recently modified their holdings of the stock. Stephens Investment Management Group LLC bought a new position in shares of Amprius Technologies in the 3rd quarter valued at $11,392,000. Vanguard Group Inc. grew its position in Amprius Technologies by 37.0% during the 3rd quarter. Vanguard Group Inc. now owns 6,512,620 shares of the company's stock worth $68,513,000 after acquiring an additional 1,757,395 shares during the last quarter. Baird Financial Group Inc. grew its position in Amprius Technologies by 99.9% during the 2nd quarter. Baird Financial Group Inc. now owns 1,000,711 shares of the company's stock worth $4,213,000 after acquiring an additional 500,212 shares during the last quarter. Calamos Advisors LLC acquired a new position in Amprius Technologies in the 3rd quarter worth about $1,799,000. Finally, Jupiter Asset Management Ltd. acquired a new position in Amprius Technologies in the 3rd quarter worth about $2,098,000. Institutional investors own 5.04% of the company's stock.

Amprius Technologies Stock Up 9.9%

Shares of AMPX stock opened at $16.37 on Friday. The company has a market cap of $2.14 billion, a price-to-earnings ratio of -48.15 and a beta of 3.04. Amprius Technologies, Inc. has a 52 week low of $1.70 and a 52 week high of $17.29. The firm has a 50 day moving average of $10.88 and a 200-day moving average of $10.72.

Amprius Technologies (NYSE:AMPX - Get Free Report) last released its earnings results on Wednesday, March 4th. The company reported ($0.01) earnings per share (EPS) for the quarter, beating analysts' consensus estimates of ($0.04) by $0.03. The company had revenue of $25.23 million for the quarter, compared to the consensus estimate of $22.91 million. Amprius Technologies had a negative net margin of 60.30% and a negative return on equity of 25.77%. Amprius Technologies has set its FY 2026 guidance at --0.060 EPS. Analysts anticipate that Amprius Technologies, Inc. will post -0.45 earnings per share for the current year.

Insider Buying and Selling at Amprius Technologies

In other news, CTO Constantin Ionel Stefan sold 25,366 shares of the company's stock in a transaction dated Monday, February 23rd. The shares were sold at an average price of $10.16, for a total transaction of $257,718.56. Following the transaction, the chief technology officer owned 723,330 shares in the company, valued at approximately $7,349,032.80. This represents a 3.39% 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 61,251 shares of the stock in a transaction dated Monday, February 23rd. The stock was sold at an average price of $10.16, for a total transaction of $622,310.16. Following the transaction, the director directly owned 1,342,400 shares in the company, valued at $13,638,784. This trade represents a 4.36% decrease in their position. The SEC filing for this sale provides additional information. Over the last ninety days, insiders sold 2,392,269 shares of company stock valued at $26,384,359. Insiders own 12.90% of the company's stock.

Amprius Technologies News Roundup

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

• Positive Sentiment: Q4 2025 results beat expectations — revenue of ~$25.2M (137% YoY), a smaller-than-expected loss, the company's first positive quarterly adjusted EBITDA, and 2026 guidance targeting at least $125M in revenue and a materially reduced net loss. This combination explains the bullish sentiment and supports growth expectations. Amprius Technologies (AMPX) Is Up 29.3% After Issuing 2026 Revenue And Profitability Guidance - Has The Bull Case Changed?
• Positive Sentiment: Analyst upgrades and higher price targets: Roth MKM reaffirmed a Buy and bumped its PT to $20 (from $16), and Craig-Hallum raised its PT to $21 (from $17). Upgrades add credibility and can attract more institutional flows. Benzinga Craig-Hallum PT Raised to $21
• Positive Sentiment: Institutional interest, analyst coverage and bullish research notes (MarketBeat et al.) are increasing — analysts are raising targets and coverage, which can amplify momentum and reduce float available to retail sellers. Amprius Stock Price Gets Amped by Hyper Growth Outlook
• Positive Sentiment: Derivative and volume signals: unusually large call-option volume and heavy share trading indicate speculative and directional conviction from traders, which can accelerate short-term gains. (Observed trading activity reported on 3/5.)
• Neutral Sentiment: One-time charge for a discontinued Colorado lease was disclosed; management frames it as a non-recurring item that clarifies manufacturing strategy (shift to contract manufacturers) and improves cash-flow visibility. That reduces future capex needs but creates a near-term hit. Amprius Technologies Reports Fourth Quarter and Fiscal Year 2025 Financial Results
• Neutral Sentiment: Media/analyst pieces debating valuation and timing — several write-ups ask if the rally already prices in most of the upside, prompting mixed views among longer-term investors. These discussions can increase volatility as momentum and value investors clash. Is It Too Late To Consider Amprius Technologies (AMPX) After Its Recent Share Price Surge
• Negative Sentiment: Company remains unprofitable on a GAAP basis (full-year net loss and negative margins); analysts still forecast negative EPS for the year. Continued execution is required to translate revenue growth into sustained profitability — a risk that could weigh on the stock if growth or margin improvement stalls. Amprius Technologies (AMPX) Reports Q4 Loss, Tops Revenue Estimates

Wall Street Analyst Weigh In

A number of brokerages have recently commented on AMPX. Oppenheimer reissued an "outperform" rating and set a $17.00 price target on shares of Amprius Technologies in a research note on Tuesday, December 23rd. Roth Mkm reaffirmed a "buy" rating and issued a $20.00 price objective (up from $16.00) on shares of Amprius Technologies in a research note on Friday. William Blair reiterated an "outperform" rating on shares of Amprius Technologies in a report on Friday. Weiss Ratings reiterated a "sell (e+)" rating on shares of Amprius Technologies in a research report on Wednesday, January 21st. Finally, Craig Hallum boosted their target price on shares of Amprius Technologies from $17.00 to $21.00 and gave the stock a "buy" rating in a report on Friday. Eight equities research analysts have rated the stock with a Buy rating and one has assigned a Sell rating to the stock. Based on data from MarketBeat.com, the company currently has an average rating of "Moderate Buy" and a consensus price target of $18.38.

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.

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