Amprius Technologies (NYSE:AMPX) CTO Sells $879,360.00 in Stock

Amprius Technologies, Inc. (NYSE:AMPX) CTO Constantin Ionel Stefan sold 73,280 shares of the stock in a transaction that occurred on Wednesday, January 21st. The stock was sold at an average price of $12.00, for a total transaction of $879,360.00. Following the transaction, the chief technology officer directly owned 748,696 shares of the company’s stock, valued at $8,984,352. The trade was a 8.92% decrease in their position. The transaction was disclosed in a document filed with the SEC, which can be accessed through this link.

Constantin Ionel Stefan also recently made the following trade(s):

• On Friday, January 23rd, Constantin Ionel Stefan sold 1,600 shares of Amprius Technologies stock. The shares were sold at an average price of $12.00, for a total value of $19,200.00.
• On Thursday, January 22nd, Constantin Ionel Stefan sold 492,827 shares of Amprius Technologies stock. The stock was sold at an average price of $12.04, for a total value of $5,933,637.08.
• On Thursday, December 11th, Constantin Ionel Stefan sold 198,255 shares of Amprius Technologies stock. The stock was sold at an average price of $10.51, for a total value of $2,083,660.05.
• On Friday, November 21st, Constantin Ionel Stefan sold 25,024 shares of Amprius Technologies stock. The shares were sold at an average price of $10.08, for a total value of $252,241.92.

Amprius Technologies Trading Down 6.5%

AMPX opened at $11.17 on Monday. The stock’s 50-day moving average price is $10.11 and its 200 day moving average price is $9.87. Amprius Technologies, Inc. has a 12-month low of $1.70 and a 12-month high of $16.03. The firm has a market cap of $1.46 billion, a price-to-earnings ratio of -42.97 and a beta of 3.04.

Amprius Technologies (NYSE:AMPX) last issued its quarterly earnings results on Thursday, November 6th. The company reported ($0.03) earnings per share (EPS) for the quarter, topping analysts’ consensus estimates of ($0.06) by $0.03. The company had revenue of $21.43 million for the quarter, compared to analyst estimates of $16.45 million. Amprius Technologies had a negative net margin of 53.16% and a negative return on equity of 38.85%. On average, research analysts forecast that Amprius Technologies, Inc. will post -0.45 earnings per share for the current year.

Analyst Ratings Changes

AMPX has been the subject of several recent research reports. Oppenheimer reissued an “outperform” rating and issued a $17.00 price target on shares of Amprius Technologies in a research report on Tuesday, December 23rd. Northland Securities set a $20.00 target price on Amprius Technologies in a report on Tuesday, October 7th. Roth Mkm set a $14.00 target price on Amprius Technologies and gave the stock a “buy” rating in a research note on Wednesday, October 22nd. Weiss Ratings reaffirmed a “sell (e+)” rating on shares of Amprius Technologies in a research report on Wednesday. Finally, Cantor Fitzgerald lifted their price objective on Amprius Technologies from $12.00 to $16.00 and gave the company an “overweight” rating in a research note on Friday, November 7th. Six investment analysts have rated the stock with a Buy rating and one has issued a Sell rating to the stock. According to data from MarketBeat.com, the stock presently has an average rating of “Moderate Buy” and an average target price of $16.00.

Institutional Trading of Amprius Technologies

Hedge funds and other institutional investors have recently bought and sold shares of the business. Stephens Investment Management Group LLC purchased a new position in shares of Amprius Technologies during the third quarter worth about $11,392,000. Goldman Sachs Group Inc. lifted its holdings in shares of Amprius Technologies by 128.6% in the 1st quarter. Goldman Sachs Group Inc. now owns 244,646 shares of the company’s stock valued at $656,000 after purchasing an additional 137,640 shares during the last quarter. Bessemer Group Inc. acquired a new stake in shares of Amprius Technologies in the 2nd quarter valued at about $174,000. Baird Financial Group Inc. grew its stake 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 buying an additional 500,212 shares during the last quarter. Finally, Calamos Advisors LLC acquired a new position in Amprius Technologies during the third quarter worth approximately $1,799,000. 5.04% of the stock is currently owned by institutional investors and hedge funds.

More Amprius Technologies News

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

• Positive Sentiment: Northland retained an Outperform rating and a $20 price target for AMPX, naming Amprius a 2026 Top Pick and highlighting its EV-battery potential — a bullish analyst endorsement that could support longer-term upside. Northland Retains Outperform Rating
• Neutral Sentiment: Trading context: AMPX is below its recent highs with elevated volume. The stock sits above its 50-day ($10.11) and 200-day ($9.77) moving averages and has a market cap near $1.46B; fundamentals still reflect losses (negative P/E). These metrics frame risk/reward but don’t change near-term sentiment by themselves.
• Negative Sentiment: Large CTO insider sales: CTO Constantin Ionel Stefan sold three tranches this week — 492,827 shares on Jan 22 at ~$12.04 (~$5.93M), 73,280 shares on Jan 21 at $12.00 (~$879k), and 1,600 shares on Jan 23 at $12.00 (~$19.2k). After these sales he still holds 748,696 shares. The size and timing of these disposals are likely weighing on sentiment and may pressure the stock short-term. CTO Form 4 Filing
• Negative Sentiment: Another insider sale: Kang Sun sold 43,185 shares recently, adding to visible insider liquidity and negative near-term signaling for investors. Kang Sun Sale Report

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.