Form 4: Director Richard Buller Executes Celcuity Stock Options

Director Richard E. Buller exercised 3,000 stock options and sold the resulting shares under a pre-arranged 10b5-1 trading plan.

Summary

• Director Richard E. Buller exercised 3,000 stock options at a strike price of $5.10 per share.
• Following the exercise, the director sold the 3,000 shares in two separate transactions.
• The first sale of 2,325 shares occurred at a weighted average price of $110.1057.
• The second sale of 675 shares occurred at a weighted average price of $110.8268.
• All transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on December 8, 2025.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the transaction was pre-planned and represents standard portfolio management by a director.

Positives

• The transactions were conducted under a pre-established Rule 10b5-1 trading plan, which is a standard mechanism for insiders to sell stock without concerns regarding non-public information.

Negatives

• The director reduced his indirect beneficial ownership in the company through these sales.

Risks

• The director's reliance on a 10b5-1 plan indicates a scheduled liquidation of equity, which may signal personal financial planning rather than a specific view on company performance.

Future Outlook

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

Industry Context

StockSavvy.ai notes that insider selling via 10b5-1 plans is a common practice for executives and directors to diversify their portfolios, and this specific transaction reflects a significant gain on options granted in 2020.

Comparison to Industry Standards

• The use of 10b5-1 plans is considered the industry standard for corporate insiders to maintain transparency and regulatory compliance during equity divestment.

Stakeholder Impact

• Minimal impact on shareholders as the transaction was executed through a pre-planned 10b5-1 arrangement.

Next Steps

• No future corporate actions or milestones were disclosed in this filing.

Key Dates

Keywords

Celcuity, CELC, Insider Trading, Form 4, Stock Options, Director Transaction