Tudor Investment Corp ET AL Invests $7.53 Million in Amprius Technologies, Inc. $AMPX

Key Points

• Tudor Investment Corp ET AL opened a new position in Amprius (NYSE:AMPX), buying 715,736 shares worth about $7.53 million (roughly 0.55% of the company), while other institutions like Vanguard materially increased stakes (Vanguard now owns ~6.51M shares worth ~$68.5M).
• Insider selling was heavy: insiders disposed of 4,647,226 shares (~$65.7 million) over the last quarter, reducing individual director positions and leaving insiders with about 12.9% ownership.
• Amprius recently beat quarterly estimates (EPS -$0.01 vs. -$0.04; revenue $25.23M vs. $22.91M) and has drawn multiple buy/upgraded analyst ratings with consensus targets near $19.75–$22, but the company remains unprofitable with negative margins and FY2026 guidance of -0.060 EPS.

Tudor Investment Corp ET AL bought a new position in Amprius Technologies, Inc. (NYSE:AMPX - Free Report) during the 3rd quarter, according to its most recent Form 13F filing with the Securities and Exchange Commission. The fund bought 715,736 shares of the company's stock, valued at approximately $7,530,000. Tudor Investment Corp ET AL owned approximately 0.55% of Amprius Technologies at the end of the most recent reporting period.

Other institutional investors and hedge funds have also modified their holdings of the company. Stephens Investment Management Group LLC acquired a new position in shares of Amprius Technologies in the 3rd quarter worth approximately $11,392,000. Vanguard Group Inc. boosted its holdings in shares of Amprius Technologies by 37.0% in 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 in the last quarter. Baird Financial Group Inc. boosted its holdings in shares of Amprius Technologies by 99.9% in 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 in the last quarter. Calamos Advisors LLC acquired a new position in shares of Amprius Technologies in the 3rd quarter worth approximately $1,799,000. Finally, Jupiter Asset Management Ltd. acquired a new position in shares of Amprius Technologies in the 3rd quarter worth approximately $2,098,000. 5.04% of the stock is owned by institutional investors and hedge funds.

More Amprius Technologies News

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

• Positive Sentiment: Investors reacted to reports of stronger-than-expected electric vehicle demand, which lifted sentiment for battery and anode material suppliers like Amprius and helped push the stock up. Article Title
• Neutral Sentiment: A Globe and Mail roundup featured analyst commentary on industrial goods names including Amprius, providing broader market context but no new company-specific catalysts. Article Title
• Negative Sentiment: Northland Securities trimmed its 2027 quarterly EPS estimates across Q1–Q4 for Amprius (notably reducing prior quarterly forecasts of $0.04–$0.05 to $0.00–$0.02), signaling lower near-term earnings expectations that could weigh on the stock if reiterated by other brokers or reflected in guidance. Research Note

Amprius Technologies Price Performance

AMPX stock opened at $16.66 on Wednesday. The company has a 50 day moving average price of $14.26 and a 200 day moving average price of $12.21. Amprius Technologies, Inc. has a fifty-two week low of $1.97 and a fifty-two week high of $19.76. The stock has a market capitalization of $2.28 billion, a PE ratio of -48.99 and a beta of 2.20.

Amprius Technologies (NYSE:AMPX - Get Free Report) last posted its quarterly earnings data on Wednesday, March 4th. The company reported ($0.01) earnings per share for the quarter, topping 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 during the quarter, compared to analysts' expectations of $22.91 million. Amprius Technologies has set its FY 2026 guidance at --0.060 EPS. As a group, equities analysts expect 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 Amprius Technologies news, Director Steven Chu sold 155,565 shares of Amprius Technologies stock in a transaction on Thursday, March 12th. The shares were sold at an average price of $18.50, for a total transaction of $2,877,952.50. Following the completion of the sale, the director owned 127,339 shares of the company's stock, valued at approximately $2,355,771.50. The trade was a 54.99% decrease in their position. The transaction was disclosed in a legal filing with the Securities & Exchange Commission, which is accessible through the SEC website. Also, Director Wen Hsuan Hsieh sold 413,146 shares of Amprius Technologies stock in a transaction on Thursday, March 12th. The stock was sold at an average price of $18.44, for a total transaction of $7,618,412.24. Following the sale, the director directly owned 44,444 shares of the company's stock, valued at $819,547.36. This represents a 90.29% decrease in their position. Additional details regarding this sale are available in the official SEC disclosure. Insiders sold a total of 4,647,226 shares of company stock worth $65,744,047 over the last quarter. 12.90% of the stock is currently owned by insiders.

Wall Street Analyst Weigh In

Several brokerages have recently commented on AMPX. William Blair reissued an "outperform" rating on shares of Amprius Technologies in a report on Friday, March 6th. Needham & Company LLC restated a "buy" rating and issued a $20.00 price objective on shares of Amprius Technologies in a research report on Tuesday, March 10th. Cantor Fitzgerald boosted their price objective on shares of Amprius Technologies from $16.00 to $20.00 and gave the stock an "overweight" rating in a research report on Friday, March 6th. Roth Mkm restated a "buy" rating and issued a $20.00 price objective (up from $16.00) on shares of Amprius Technologies in a research report on Friday, March 6th. Finally, B. Riley Financial boosted their price objective on shares of Amprius Technologies from $16.00 to $22.00 and gave the stock a "buy" rating in a research report on Monday, March 9th. Eight research analysts have rated the stock with a Buy rating and one has given a Sell rating to the company. According to data from MarketBeat.com, Amprius Technologies presently has an average rating of "Moderate Buy" and a consensus target price of $19.75.

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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