401(k) · DOL Form 5500 · 2023

Tenneco Automotive Operating Company Inc. 401(k) Plan

Data updated 2026-08-25

$1.8B
Total assets Very large vs avg
14,522
Participants Very large workforce
99th
Percentile by assets National rank
$124,053
Avg per participant Near avg balance/head
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Official DOL plan name: Tenneco 401(k) Investment Plan · Sponsored by Tenneco Automotive Operating Company Inc. · Michigan · Manufacturing

$1.8B in assets, 14,522 participants

Tenneco Automotive Operating Company Inc.'s Tenneco 401(k) Investment Plan reported $1.8B in total assets and 14,522 participants in its 2023 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #18,450 in Manufacturing (18,722 peers)

Coverage in Michigan

Tenneco 401(k) Investment Plan covers 14,522 participants in Michigan, 23x the typical Michigan plan (state average ~638 per filing). Assets: $1.8B.

#18,450
in Manufacturing (18,722 peers)
+8.5%
assets growth YoY
18×
vs typical plan assets (national mean)

Tenneco 401(k) Investment Plan's outsized position by total assets

Tenneco 401(k) Investment Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$1,801,504,860 Top 1% higher than 99% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Tenneco 401(k) Investment Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Tenneco 401(k) Investment Plan is a mega filing (14,522 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Tenneco 401(k) Investment Plan reported net income rose from -$252M in the plan year 2022 filing to $141M in the plan year 2023 filing.
  • Tenneco 401(k) Investment Plan reported participants rose from 6,681 in the plan year 2022 filing to 14,522 in the plan year 2023 filing.
  • Tenneco 401(k) Investment Plan end-of-year assets rose from $1.7B in the plan year 2022 filing to $1.8B in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 741933558 · Tenneco Automotive Operating Company Inc. PY 2023 · 401(k)

Tenneco 401(k) Investment Plan · $1.8B · 14,522 · 99th

  • BOY $1.8B
  • BOY 14,522
  • BOY 99th
  • BOY 401(k)
  • BOY near Zoetis Savings Plan
  • BOY ind #18450

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Manufacturing retirement plans → · Plans in Michigan →

Tenneco 401(k) Investment Plan in the asset neighbourhood

Reyes Holdings Retirement PlanReyes Holdings Retirement Pl…$1.8BTenneco 401(k) Investment PlanTenneco 401(k) Investment Pl…$1.8BZoetis Savings Plan$1.8BDassault Systemes Employee Savings Plan PlusDassault Systemes Employee S…$1.8BSyngenta Corporation Investment Savings PlanSyngenta Corporation Investm…$1.8B
End-of-year total assets ($B) among Tenneco 401(k) Investment Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Michigan filing particulars

Total Assets (Beginning of Year)$1.7B
Net Assets (End of Year)$1.8B
Net Income$141M
Employer EIN741933558
Plan Effective Date2002-11-25
Filing StatusFILING RECEIVED

Sponsor Plan History (Tenneco Automotive Operating Company Inc.)

Sponsor-wide plan assets over time

All Tenneco Automotive Operating Company Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$1.8B 9.510720891466384% vs 2022
2024 filing year
$1.6B$1.65B$1.7B$1.75B$1.8B$1.85B 202220232024 $1.66B $1.82B ▲ +9.6%
Year Plans Participants Total Assets
2022 2 8,439 $1.7B
2023 1 14,522 $1.8B
2024 1 13,299 $1.8B

Nearby 401(k) Plans in Michigan

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Tenneco 401(k) Investment Plan vs. nearby 401(k) plans in Michigan, assets vs. participants Scatter plot of 6 data points. 10000200003000040000500006000070000 0510152025 Total assets ($B) Participants Tenneco 401(k) Investment Plan, Total assets ($B): 1.80150486 · Participants: 14522Tenneco 401(k) Investment PlanGeneral Motors Retirement Savings Plan for Salaried Employees in the United States, Total assets ($B): 20.378449285 · Participants: 47299General Motors Retirement Savings Plan for Salaried Employees in the United StatesFord Motor Co. Savings and Stock Investment Plan for Salaried Employees, Total assets ($B): 15.588575271 · Participants: 30516Ford Motor Co. Savings and Stock Investment Plan for Salaried EmployeesThe Dow Chemical Company Employees' Savings Plan, Total assets ($B): 10.084842211 · Participants: 18088The Dow Chemical Company Employees' Savings PlanThe General Motors Personal Savings Plan for Hourly-Rate Employees in the United States, Total assets ($B): 8.580684909 · Participants: 40393The General Motors Personal Savings Plan for Hourly-Rate Employees in the United StatesFord Motor Co. Tax-Efficient Savings Plan for Hourly Employees, Total assets ($B): 7.617084451 · Participants: 59195Ford Motor Co. Tax-Efficient Savings Plan for Hourly Employees
Tenneco 401(k) Investment Plan vs. nearby 401(k) plans in Michigan, assets vs. participants
Compare Tenneco 401(k) Investment Plan side-by-side with 3 peers →

Scale composition for Tenneco 401(k) Investment Plan

Tenneco 401(k) Investment Plan reports $1.8B in end-of-year assets across 14,522 participants (0.015% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.015% of 93,925,755 covered participants) - about $124,053 per participant (90% of the national average assets-per-participant) . Net income for plan year 2023 was $141M.

This plan identity (EIN 741933558, plan #144) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.7B to $1.8B (+9.5%) while covered participants moved from 6,681 to 13,299 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 6,681 $1.7B Open filing
2023 14,522 $1.8B This page
2024 · index core 13,299 $1.8B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Tenneco 401(k) Investment Plan's out-of-state 401(k) peers by assets and headcount

Outside Michigan, the nearest 401(k) by assets is Zoetis Savings Plan in NJ ($1.8B); by covered participants it is General Mills 401(k) Plan in MN (14,536 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.8B here).

Similar participant headcount

Nearest other-state filings by covered participants (14,522 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Tenneco 401(k) Investment Plan assets move in 2023? ▼
Tenneco 401(k) Investment Plan grew at a solid clip - up 8.5% during 2023, from $1.7B to $1.8B. Reported net income was $141M.
How have Tenneco Automotive Operating Company Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Tenneco Automotive Operating Company Inc.'s sponsor-wide assets grew 9.5%, from $1.7B to $1.8B.
Where does Tenneco 401(k) Investment Plan rank by assets among Form 5500 filers? ▼
Tenneco 401(k) Investment Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Tenneco 401(k) Investment Plan? ▼
Among 401(k) plans in other states, the closest by assets is Zoetis Savings Plan in NJ ($1.8B, 6,905 participants).
Which 401(k) plans cover a similar participant headcount to Tenneco 401(k) Investment Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is General Mills 401(k) Plan in MN (14,536 participants, $4.6B in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 741933558.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.