Carpenter Technology Officer Elizabeth Socci Performance Stock Vesting and Sales

This Form 4 filing reports transactions by Elizabeth A. Socci, VP, Controller & Chief Accounting Officer of Carpenter Technology Corporation. On July 14, 2026, Socci received 2,584 shares of common stock through the vesting of performance-based restricted stock units that were granted on August 15, 2023. The performance period ended June 30, 2026, and the achievement of performance targets was certified by the Human Capital Management Committee on July 14, 2026. On the same date, Socci sold 1,128 shares at $576.87 per share, resulting in total post-transaction holdings of 10,600 shares. The transactions were executed under the Carpenter Technology Corporation Stock-Based Compensation Plan for Officers and Key Employees. The filing shows the typical executive compensation pattern of restricted stock unit vesting followed by partial sales for tax obligations or diversification.