Stefan Constantin Ionel 4

What Happened

• Stefan Constantin Ionel, Chief Technology Officer of Amprius Technologies (AMPX), exercised stock-derived awards and sold shares on January 28, 2026. He exercised 39,690 option/derivative shares (reported as 39,600 at $0.05 and 90 at $0.62) for a total exercise cost of $2,036, then sold 39,690 shares in open-market transactions for an aggregate proceeds of approximately $476,351 (average execution price reported as $12.00; range $12.00–$12.02). The filing also shows derivative disposition entries at $0.00, reflecting the conversion/settlement of those derivatives.

Key Details

• Transaction date: 2026-01-28; Form 4 filed 2026-01-30 (timely).
• Exercises/acquisitions: 90 shares @ $0.62 (≈ $56) and 39,600 shares @ $0.05 (≈ $1,980).
• Sale: 39,690 shares sold at an average price of $12.00 for total proceeds ≈ $476,351 (prices ranged $12.00–$12.02; F3).
• Footnote: Transactions were effected pursuant to a Rule 10b5-1 trading plan adopted Sept 11, 2025 (F1).
• Holdings after transaction: Not fully specified in the provided filing; filing notes 585,697 restricted stock units (RSUs) outstanding for the reporting person (F2).
• Derivative entries at $0.00 represent conversion/settlement of the exercised derivatives (reported as M-type transactions).

Context

• This was an exercise-plus-sale (cashless-style) event executed under a pre-established 10b5-1 plan, which is a routine way insiders systematically sell shares. The small out-of-pocket exercise cost ($2,036) and immediate sale produced the net proceeds ($476k). These filings are factual disclosures and do not, by themselves, indicate insider sentiment beyond the recorded transactions.