Mercury Systems 401(k) match, vesting and fees
What Mercury Systems' 401(k) plan says about matching contributions
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Recordkeeper | Fidelity Investments Institutional | Schedule C ↗ |
| Independent auditor | Forvis Mazars, LLP (unmodified opinion, limited scope) | Schedule H ↗ |
| Plan type and status | 401(k) · Active | Form 5500 ↗ |
How the plan compares
Plan year 2024 medians for 1,087 defined-contribution plans in professional, scientific, and technical services with 1,000 to 4,999 participants.
| Mercury Systems: employer contribution per participant | $4,810 | |
| Peer median | $2,556 |
| Mercury Systems: average balance | $144,823 | |
| Peer median | $100,166 |
Admin expenses are the plan's reported administrative expenses divided by its assets; they do not include fund expense ratios.
Plan history
Plan assets went from $415M at the end of plan year 2021 to $476M at the end of plan year 2024.
| Plan year | Participants | Assets | Employer contributions | Per participant | Admin expense ratio | Match formula | Filing |
|---|---|---|---|---|---|---|---|
| 2024 | 3,340 | $476M | $15.8M | $4,810 | — | Not published | Form 5500 ↗ |
| 2023 | 3,412 | $440M | $19.3M | $5,773 | 0.02% | Not published | Form 5500 ↗ |
| 2022 | 3,242 | $370M | $10.9M | $3,450 | <0.01% | Not published | Form 5500 ↗ |
| 2021 | 2,817 | $415M | $6.3M | $2,291 | 0.07% | Not published | Form 5500 ↗ |
Common questions
Does Mercury Systems match 401(k) contributions?
The match terms for the Mercury Employees Retirement Investment Trust have not been published from its filing yet. The plan year 2024 filing reports $15.8M in employer contributions, about $4,810 per participant. That total includes any match and profit-sharing; it is not a match formula.
When is the Mercury Systems 401(k) match vested?
The vesting schedule for the Mercury Employees Retirement Investment Trust is not in the data published so far. Your Summary Plan Description states it.
Who manages the Mercury Systems 401(k)?
The recordkeeper listed on Schedule C of the plan year 2024 filing is Fidelity Investments Institutional. The plan administrator is Mercury Systems, Inc..
I left Mercury Systems. How do I find my old 401(k)?
Your account stays in the plan until you move it. Contact the plan administrator (Mercury Systems, Inc., (978) 256-1300) or the recordkeeper, Fidelity Investments Institutional. The Mercury Systems old 401(k) page lists the contacts from every plan filing. Find an old Mercury Systems 401(k)
Data from the public Form 5500 annual reports Mercury Systems filed with the U.S. Department of Labor (plan years 2021 and 2022 and 2023 and 2024) and, where noted, the attached independent auditor's report. Plan terms may have changed since the filing; check your current Summary Plan Description. PlanFacts is not affiliated with Mercury Systems. Not financial advice. Report a correction · Methodology