Advanced Energy Director Tina Donikowski Sells Shares
The transaction marks a routine move under a pre-arranged plan and leaves the director with over 8,000 shares.
December 08, 2025
Tina Donikowski, a director on the board of Advanced Energy Industries (Nasdaq: AEIS), completed a scheduled sale of company stock as part of a Rule 10b5-1 trading plan. The transaction took place on December 4, 2025, and was reported through a Form 4 filing with the SEC.
The sale covered 2,257 shares at a price of $210.33 each, totaling just under $475,000. Because the sale followed a preset plan established in September, it aligns with the structured approach insiders often use to manage their holdings while maintaining compliance with regulatory requirements.
Following the sale, Donikowski continues to directly own 8,248 shares. The filing did not show any adjustments to derivative positions or indirect ownership, and it did not note any changes in her role at the company.
Advanced Energy operates out of Denver and develops power conversion and control technologies for semiconductor and industrial clients. The company’s stock activity often moves in step with broader shifts across the tech and manufacturing sectors, which is why insider transactions draw close attention from investors and analysts.
This update offers a clear view into ongoing activity from company leadership. With the trade set months in advance, the transaction reflects a methodical approach rather than a response to short-term market changes.
