Employer · plans filed under one EIN
Adient US LLC
Plymouth, MI · Manufacturing
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances.
Adient US LLC, based in Plymouth, Michigan, sponsors 3 retirement plans with 100 or more participants: 2 defined contribution and 1 defined benefit. Together they reported 9,266 participant records and $1.09B in net assets.
The largest is Adient US LLC Savings and Investment (401(k)) Plan, an ESOP with a 401(k) feature with 7,916 participants. A person can be counted in more than one plan, so the participant total is a count of records rather than of people.
Employer contributions across the plans were $26.7M and participant contributions $34.8M in the latest plan years; benefits paid were $111M. Schedule C compensation reported to service provider organisations totalled $1.1M.
Combined net assets moved from $7.6M in 2015 to $1.09B in 2025 (up 14276%). Plan mergers and spin-offs show up here as steps in the series.
Plans
| Plan | Kind | Plan year | Participants | Net assets | Per participant | Employer / active | Sch. C compensation |
|---|---|---|---|---|---|---|---|
| Adient US LLC Savings and Investment (401(k)) Plan | ESOP with a 401(k) feature | 2025 | 7,916 | $1.05B | $133,084 | $4,482 | $866K |
| Adient Production Employees Savings and Investment (401(k)) Plan | ESOP with a 401(k) feature | 2025 | 1,061 | $32.5M | $30,621 | $1,693 | $101K |
| Adient Production Employees Pension Fund | defined benefit pension plan | 2024 | 289 | $5.5M | $19,015 | $3,849 | $133K |
| US median, plan year 2024: DC plans $53,102 per participant, $2,175 employer contribution per active participant; DB plans $86,221 and $10,244. | |||||||
Trend by plan year
| Plan year | Plans | Participant records | Net assets | Employer contributions | Participant contributions |
|---|---|---|---|---|---|
| 2025 | 2 | 8,977 | $1.09B | $26.2M | $34.8M |
| 2024 | 3 | 10,019 | $986M | $28.5M | $35.7M |
| 2023 | 3 | 10,643 | $954M | $25.5M | $35.5M |
| 2022 | 3 | 11,180 | $843M | $3.3M | $34.1M |
| 2021 | 3 | 10,701 | $1.08B | $30.4M | $33.2M |
| 2020 | 3 | 11,119 | $948M | $13.3M | $32.0M |
| 2019 | 3 | 10,423 | $906M | $38.8M | $37.6M |
| 2018 | 3 | 11,110 | $755M | $22.6M | $34.9M |
| 2017 | 3 | 10,786 | $858M | $38.0M | $34.5M |
| 2016 | 3 | 9,815 | $716M | $39.8M | $20.8M |
| 2015 | 1 | 191 | $7.6M | $0 | $0 |
History of the plans listed above, in the years each filed the full Form 5500 with 100 or more participants. Plans that have since terminated are not included.
Service providers
| Organisation | Services reported | Plans | Compensation reported |
|---|---|---|---|
| Fidelity Invest. Inst. Opr. Co. | Participant loan processing | 2 | $479,840 |
| Financial Engines | Investment advisory (participants); Investment management | 1 | $369,590 |
| Aon Consulting, Inc. | Actuarial; Investment advisory (plan) | 1 | $127,650 |
| Aon Investments USA Inc. | Investment advisory (plan); Other services | 1 | $82,000 |
| Schwartz & Co. | Investment advisory (participants); Investment management | 1 | $35,630 |
| U.S. Bank National Association | Trustee (bank, trust company, or similar financial institution) | 1 | $4,976 |
Organisations paid $5,000 or more by any of these plans, from Schedule C. Individuals are not shown.
Questions and answers
How many retirement plans does Adient US LLC have?
3 plans with 100 or more participants filed Form 5500 under its employer identification number for the latest plan years: Adient US LLC Savings and Investment (401(k)) Plan, Adient Production Employees Savings and Investment (401(k)) Plan and Adient Production Employees Pension Fund. Smaller plans and plans filed under a subsidiary's number are not grouped here.
How much does Adient US LLC contribute to its plans?
$26,652,214 in employer contributions across these plans in their latest plan years, about $4,140 per active participant record. Form 5500 reports totals and not the match or accrual formula.
Who provides services to these plans?
Schedule C filings name Fidelity Invest. Inst. Opr. Co., Financial Engines, Aon Consulting, Inc. and Aon Investments USA Inc. and others. Only organisations paid $5,000 or more by a plan are listed on Schedule C.
Where does this come from?
Form 5500 annual reports filed with the Department of Labor's EFAST2 system, from the EBSA research files, with filings received through 24 Aug 2026. Figures are as filed and may be amended.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Plans are grouped by the sponsor's employer identification number exactly as filed; a company that files under several EINs appears as several employers. See the methodology and corrections.