Vanguard Group Inc. Purchases 1,757,395 Shares of Amprius Technologies, Inc. $AMPX

Vanguard Group Inc. grew its position in shares of Amprius Technologies, Inc. (NYSE:AMPX) by 37.0% during the 3rd quarter, according to the company in its most recent filing with the Securities & Exchange Commission. The institutional investor owned 6,512,620 shares of the company’s stock after buying an additional 1,757,395 shares during the quarter. Vanguard Group Inc. owned 5.21% of Amprius Technologies worth $68,513,000 as of its most recent filing with the Securities & Exchange Commission.

Other hedge funds and other institutional investors have also recently modified their holdings of the company. Stephens Investment Management Group LLC purchased a new stake in shares of Amprius Technologies during the third quarter valued at approximately $11,392,000. JPMorgan Chase & Co. boosted its position in Amprius Technologies by 12,063.3% in the second quarter. JPMorgan Chase & Co. now owns 1,017,217 shares of the company’s stock worth $4,282,000 after purchasing an additional 1,008,854 shares during the last quarter. Geode Capital Management LLC boosted its position in Amprius Technologies by 167.9% in the second quarter. Geode Capital Management LLC now owns 1,593,607 shares of the company’s stock worth $6,710,000 after purchasing an additional 998,649 shares during the last quarter. Millennium Management LLC grew its stake in Amprius Technologies by 94.5% in the 1st quarter. Millennium Management LLC now owns 1,396,013 shares of the company’s stock valued at $3,741,000 after purchasing an additional 678,442 shares during the period. Finally, Thames Capital Management LLC bought a new position in Amprius Technologies in the 3rd quarter valued at $5,542,000. Hedge funds and other institutional investors own 5.04% of the company’s stock.

Trending Headlines about Amprius Technologies

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 equities research analysts have recently commented on AMPX shares. Craig Hallum lifted their target price on Amprius Technologies from $17.00 to $21.00 and gave the stock a “buy” rating in a research note on Friday. Oppenheimer restated an “outperform” rating and set a $17.00 price target on shares of Amprius Technologies in a research report on Tuesday, December 23rd. Weiss Ratings restated a “sell (e+)” rating on shares of Amprius Technologies in a report on Wednesday, January 21st. William Blair reaffirmed an “outperform” rating on shares of Amprius Technologies in a research report on Friday. Finally, Needham & Company LLC assumed coverage on shares of Amprius Technologies in a research note on Thursday, January 29th. They issued a “buy” rating and a $20.00 target price on the stock. Eight research analysts have rated the stock with a Buy rating and one has assigned a Sell rating to the company. According to data from MarketBeat, the stock currently has an average rating of “Moderate Buy” and an average price target of $18.38.

Insider Activity

In other Amprius Technologies 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 sale, the chief technology officer directly owned 723,330 shares of the company’s stock, valued at $7,349,032.80. This represents a 3.39% decrease in their ownership of the stock. The transaction was disclosed in a document filed with the Securities & Exchange Commission, which is available 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 owned 1,342,400 shares of the company’s stock, valued at $13,638,784. This represents a 4.36% decrease in their position. The SEC filing for this sale provides additional information. Over the last ninety days, insiders have sold 2,392,269 shares of company stock worth $26,384,359. Insiders own 12.90% of the company’s stock.

Amprius Technologies Price Performance

Shares of AMPX opened at $16.37 on Friday. The firm has a market cap of $2.14 billion, a PE ratio of -48.15 and a beta of 3.04. The stock’s fifty day moving average price is $10.88 and its two-hundred day moving average price is $10.69. Amprius Technologies, Inc. has a 1 year low of $1.70 and a 1 year high of $17.29.

Amprius Technologies (NYSE:AMPX) last issued its quarterly earnings results on Wednesday, March 4th. The company reported ($0.01) EPS for the quarter, beating analysts’ consensus estimates of ($0.04) by $0.03. The firm had revenue of $25.23 million for 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. Sell-side analysts anticipate that Amprius Technologies, Inc. will post -0.45 earnings per share for the current fiscal year.

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.