Form 4: Nebius Group CIO Executes Stock Option Exercise and Sale

Chief Infrastructure Officer Andrey Korolenko exercised 500,000 stock options and sold the resulting shares under a 10b5-1 plan.

Summary

• Andrey Korolenko, Chief Infrastructure Officer of Nebius Group N.V., exercised 500,000 stock options at a strike price of $100 per share.
• Following the exercise, the reporting person sold 500,000 Class A shares at a price of $203.24 per share.
• The transactions were executed on May 13, 2026, pursuant to a Rule 10b5-1 trading plan adopted on December 2, 2025.
• The reporting person retains beneficial ownership of 585,209 Class A shares and 1,500,000 stock options.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event; while insider selling is often viewed with caution, the use of a pre-established 10b5-1 plan mitigates concerns regarding potential negative sentiment.

Positives

• The transaction was pre-planned under a Rule 10b5-1 trading plan, which typically indicates the sale is not based on material non-public information.

Negatives

• The sale represents a significant liquidation of equity by a key member of the executive leadership team.

Risks

• Insider selling can sometimes be perceived by the market as a lack of confidence in the company's short-term growth prospects.

Future Outlook

No specific forward-looking guidance regarding company operations was provided in this filing.

Industry Context

StockSavvy.ai notes that executive stock sales are common occurrences for liquidity and tax planning purposes, particularly when executed through pre-arranged 10b5-1 plans, and do not necessarily reflect a change in the company's fundamental outlook.

Comparison to Industry Standards

• The use of Rule 10b5-1 trading plans is a standard corporate governance practice for executives to avoid allegations of insider trading.

Stakeholder Impact

• Shareholders should note the reduction in direct equity held by the Chief Infrastructure Officer.

Next Steps

• Continued monitoring of future Form 4 filings for further insider activity.

Key Dates

Keywords

Nebius Group, NBIS, Insider Trading, Form 4, Stock Options, Executive Compensation