Employee and Employer Contributions
Most 401(k) plans, including the Lockheed Martin Savings Plan for Employees in Puerto Rico, consist of two main kinds of contributions: those made by the employee and those made by the employer. The employee contributions are usually always 100% vested. However, employer contributions may be subject to a vesting schedule, which means unvested portions may not be divided in the QDRO.
During divorce, one challenge is determining what portion of the balance is eligible for division. Your QDRO should specify if employer contributions are included and whether a coverture formula or a fixed amount/division date is being used.

