401(k) · DOL Form 5500 · 2023

Westlake Management Services, Inc. 401(k) Plan

Data updated 2026-08-25

$1.8B
Total assets Very large vs avg
10,546
Participants Very large workforce
99th
Percentile by assets National rank
$168,088
Avg per participant Above avg balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Westlake Savings Plan · Sponsored by Westlake Management Services, Inc. · Texas · Manufacturing

$1.8B in assets, 10,546 participants

Westlake Management Services, Inc.'s Westlake Savings Plan reported $1.8B in total assets and 10,546 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.

  • #18,443 in Manufacturing (18,722 peers)

Coverage in Texas

Westlake Savings Plan covers 10,546 participants in Texas, 15x the typical Texas plan (state average ~688 per filing). Assets: $1.8B.

#18,443
in Manufacturing (18,722 peers)
+20.5%
assets growth YoY
18×
vs typical plan assets (national mean)

Westlake Savings Plan's outsized position by total assets

Westlake Savings Plan vs every filed plan by assets

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

$1,772,659,922 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

Westlake Savings 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. Westlake Savings Plan is a mega filing (10,546 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Westlake Savings Plan reported net income rose from -$237M in the plan year 2022 filing to $292M in the plan year 2023 filing.
  • Westlake Savings Plan end-of-year assets rose from $1.5B in the plan year 2022 filing to $1.8B in the plan year 2023 filing.
  • Westlake Savings Plan reported participants rose from 9,573 in the plan year 2022 filing to 10,546 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 760321065 · Westlake Management Services, Inc. PY 2023 · 401(k)

Westlake Savings Plan · $1.8B · 10,546 · 99th

  • NET $1.8B
  • BOOK 10,546
  • VS-ST 99th
  • BOY 401(k)
  • SCH near Holland and Knight Profit Sharing Plan & Trust
  • EBSA ind #18443

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 Texas →

Westlake Savings Plan in the asset neighbourhood

Cadence Design Systems, Inc. 401(k) PlanCadence Design Systems, Inc.…$1.8BWestlake Savings Plan$1.8BHolland and Knight Profit Sharing Plan & TrustHolland and Knight Profit Sh…$1.8BJohn Deere Tax Deferred Savings PlanJohn Deere Tax Deferred Savi…$1.8BWoodward Retirement Savings PlanWoodward Retirement Savings …$1.8B
End-of-year total assets ($B) among Westlake Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Texas filing particulars

Total Assets (Beginning of Year)$1.5B
Net Assets (End of Year)$1.8B
Net Income$292M
Employer EIN760321065
Plan Effective Date1987-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Westlake Management Services, Inc.)

Sponsor-wide plan assets over time

All Westlake Management Services, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$2.4B 29.431467805450534% vs 2022
2024 filing year
$1.8B$2B$2.2B$2.4B$2.6B 202220232024 $1.89B $2.44B ▲ +29.1%
Year Plans Participants Total Assets
2022 2 10,778 $1.9B
2023 2 11,622 $2.2B
2024 2 11,688 $2.4B

Nearby 401(k) Plans in Texas

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

Westlake Savings Plan vs. nearby 401(k) plans in Texas, assets vs. participants Scatter plot of 6 data points. 050000100000150000 -1001020304050 Total assets ($B) Participants Westlake Savings Plan, Total assets ($B): 1.772659922 · Participants: 10546Westlake Savings PlanAT&T Retirement Savings Plan, Total assets ($B): 40.012012 · Participants: 119854AT&T Retirement Savings PlanExxonmobil Savings Plan, Total assets ($B): 21.917 · Participants: 23477Exxonmobil Savings PlanCaterpillar 401(k) Savings Plan, Total assets ($B): 16.496476432 · Participants: 41679Caterpillar 401(k) Savings PlanAmerican Airlines, Inc. 401(k) Plan, Total assets ($B): 14.680189879 · Participants: 88792American Airlines, Inc. 401(k) PlanDell Inc. 401(k) Plan, Total assets ($B): 13.529835 · Participants: 45686Dell Inc. 401(k) Plan
Westlake Savings Plan vs. nearby 401(k) plans in Texas, assets vs. participants
Compare Westlake Savings Plan side-by-side with 3 peers →

Scale composition for Westlake Savings Plan

Westlake Savings Plan reports $1.8B in end-of-year assets across 10,546 participants (0.014% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.011% of 93,925,755 covered participants) - about $168,088 per participant (1.2x the national average assets-per-participant) . Net income for plan year 2023 was $292M.

This plan identity (EIN 760321065, plan #004) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.5B to $2.0B (+37.6%) while covered participants moved from 9,573 to 10,707 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 9,573 $1.5B Open filing
2023 10,546 $1.8B This page
2024 · index core 10,707 $2.0B Open filing

The same sponsor also keeps 2 other index-core plans on PlainRetire:

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

Outside Texas, the nearest 401(k) by assets is Holland and Knight Profit Sharing Plan & Trust in FL ($1.8B); by covered participants it is Jeld-Wen 401(k) Retirement Savings Plan in NC (10,576 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 (10,546 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 Westlake Savings Plan assets move in 2023? ▼
Westlake Savings Plan grew sharply - up 20.5% during 2023, from $1.5B to $1.8B. Reported net income was $292M.
How have Westlake Management Services, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Westlake Management Services, Inc.'s sponsor-wide assets grew 29.4%, from $1.9B to $2.4B.
Where does Westlake Savings Plan rank by assets among Form 5500 filers? ▼
Westlake Savings 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 Westlake Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Holland and Knight Profit Sharing Plan & Trust in FL ($1.8B, 3,060 participants).
Which 401(k) plans cover a similar participant headcount to Westlake Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Jeld-Wen 401(k) Retirement Savings Plan in NC (10,576 participants, $462M 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 760321065.

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.