Six3 Advanced Systems 401(k) Plan (terminated 2024): Login, Facts & Contact Information
This plan was terminated. Its final Form 5500 covers plan year 2024, when $368.1 million was transferred out of the plan. Assets moved to the THE CACI SMART PLAN (sponsored by CACI INTERNATIONAL, INC.). If you had an account, your balance was transferred or paid out; Beagle can help you find where it went.
See the THE CACI SMART PLAN →Six3 Advanced Systems 401(k) Login
Retirement plan providers can change. This information is from the plan's 2024 filing.
Six3 Advanced Systems 401(k) Plan Facts (plan year 2024)
Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Jan 2, 2024), filed Jan 29, 2026. Public filing with the U.S. Department of Labor.
How the Six3 Advanced Systems 401(k) changed, 2019–2024
| Plan year | Participants | Plan assets | Employer contributions | Benefits paid |
|---|---|---|---|---|
| 2019 | 1,245 | $301.0 million | $34.4 million | $16.5 million |
| 2020 | 1,619 | $385.8 million | $40.5 million | $21.8 million |
| 2021 | 1,721 | $462.4 million | $40.2 million | $36.5 million |
| 2022 | 1,819 | $389.8 million | $41.3 million | $37.5 million |
| 2023 | 1,861 | $368.1 million | $33.4 million | $136.6 million |
| 2024 (final) | 1,873 | $0 | — | $-52,795 |
Six3 Advanced Systems 401(k) Contact Information
Questions about the Six3 Advanced Systems 401(k)
Is the Six3 Advanced Systems 401(k) plan still active?
No. The plan's final Form 5500 was filed for plan year 2024. Its assets were transferred to the THE CACI SMART PLAN.
Does Six3 Advanced Systems contribute to the 401(k)?
The plan does not report an employer matching arrangement on its Form 5500.
Does the Six3 Advanced Systems 401(k) have automatic enrollment?
No. The plan does not report automatic enrollment; employees enroll themselves.
How many people are in the Six3 Advanced Systems 401(k) plan?
1,873 participants at the start of plan year 2024.
Who manages the Six3 Advanced Systems 401(k) accounts?
Schwab Retirement Plan Services is the plan's recordkeeper, which is where participants log in to see their balance.