Form 4: AEIS Executive Sells Shares Under 10b5-1 Plan

Advanced Energy Industries EVP and General Counsel, Vonne Elizabeth Karpinski, sold shares of common stock as part of a pre-arranged 10b5-1 trading plan.

Summary

• Vonne Elizabeth Karpinski, Executive Vice President and General Counsel of Advanced Energy Industries Inc. (AEIS), reported a sale of common stock.
• The transactions occurred on February 23, 2026.
• A total of 964 shares were sold at a price of $328.42 per share.
• An additional 0.001 shares were sold at a price of $329.76 per share.
• These sales were executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 12, 2025.
• Following these reported transactions, Ms. Karpinski beneficially owns 11,683 shares directly.
• This beneficial ownership consists of 3,065 shares of unvested restricted stock units and 8,618 shares of common stock.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the sale was pre-planned under a 10b5-1 plan, which is a common practice for executives to manage personal finances and diversify holdings without implying a change in company fundamentals.

Positives

• The sale was conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned transaction rather than a reactive sale based on new, non-public information.

Negatives

• An executive sold a portion of their holdings, which, despite being pre-planned, could be interpreted by some investors as a slight negative signal.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that insider sales executed under Rule 10b5-1 plans are a common practice for executives to manage personal finances and diversify their holdings while adhering to insider trading regulations. This is a routine disclosure for a publicly traded company.

Stakeholder Impact

• Shareholders: May view the insider sale with slight caution, though the pre-planned nature under a 10b5-1 plan mitigates concerns about reactive selling.

Key Dates

Recommendation

The transaction is a routine insider sale under a pre-arranged 10b5-1 plan, which does not typically signal a change in the company's fundamental outlook or warrant a change in investment recommendation. Investors should continue to evaluate AEIS based on its operational performance and broader market conditions.

Keywords

AEIS, Advanced Energy Industries, insider transaction, Form 4, stock sale, 10b5-1 plan, Vonne Elizabeth Karpinski, executive compensation