Form 4 Filing for Amprius Technologies, Inc. - Officer Stock Transaction

This filing details a transaction by Stefan Constantin Ionel, Chief Technology Officer of Amprius Technologies, Inc. (AMPX). On May 27, 2026, Mr. Ionel disposed of 3,208 shares of common stock at an average price of $17.1935 per share. The disposal was part of a non-discretionary, sell-to-cover arrangement to fund tax withholding obligations associated with the vesting of restricted stock units. The shares were sold in multiple transactions at prices ranging from $17.13 to $17.30. Following this transaction, Mr. Ionel owns 801,310 shares, which includes 584,308 restricted stock units.