401(k) · DOL Form 5500 · 2022
Board of Trustees of the Western Wa U.a. Supplemental Pension Plan 401(k) Plan
Data updated 2026-08-25
- $472M
- Total assets Above avg plan size
- 5,114
- Participants Above avg headcount
- 98th
- Percentile by assets National rank
- $92,391
- Avg per participant Below avg balance/head
Official DOL plan name: Western Washington U.a. Supplemental Pension Plan · Sponsored by Board of Trustees of the Western Wa U.a. Supplemental Pension Plan · Washington · Construction
$472M in assets, 5,114 participants
Board of Trustees of the Western Wa U.a. Supplemental Pension Plan's Western Washington U.a. Supplemental Pension Plan reported $472M in total assets and 5,114 participants in its 2022 DOL Form 5500 filing, ranking in the 98th 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.
- #9,692 in Construction (9,927 peers)
Coverage in Washington
Western Washington U.a. Supplemental Pension Plan covers 5,114 participants in Washington, 3.5x the typical Washington plan (state average ~1,476 per filing). Assets: $472M.
- #9,692
- in Construction (9,927 peers)
- -15.4%
- assets change YoY
- 4.7×
- vs typical plan assets (national mean)
The plan reported a net loss of $84M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Western Washington U.a. Supplemental Pension Plan's outsized position by total assets
Western Washington U.a. Supplemental Pension Plan vs every filed plan by assets
End-of-year total assets · plan year 2022 · DOL Form 5500
$472,487,558 Top 2% higher than 98% of 139,123 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022
Western Washington U.a. Supplemental Pension Plan's large-plan peer group by participant headcount
Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Western Washington U.a. Supplemental Pension Plan lands in the large band (5,114 participants).
Form 5500 schedule snapshot
Filing strip 911879397 · Board of Trustees of the Western Wa U.a. Supplemental Pension Plan PY 2022 · 401(k)
Western Washington U.a. Supplemental Pension Plan · $472M · 5,114 · 98th
- NET $472M
- BOOK 5,114
- VS-ST 98th
- BOY 401(k)
- SCH near Schreiber Foods, Inc. 401(k) Retirement Savings Plan
- EBSA ind #9692
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 Construction retirement plans → · Plans in Washington →
Western Washington U.a. Supplemental Pension Plan in the asset neighbourhood
Washington filing particulars
| Total Assets (Beginning of Year) | $559M |
|---|---|
| Net Assets (End of Year) | $472M |
| Net Income | -$84M |
| Employer EIN | 911879397 |
| Plan Effective Date | 1998-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Board of Trustees of the Western Wa U.a. Supplemental Pension Plan)
Sponsor-wide plan assets over time
All Board of Trustees of the Western Wa U.a. Supplemental Pension Plan plans reported in each filing year
- Latest sponsor-wide plan assets
- $661M 39.92336217242783% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 1 | 5,114 | $472M |
| 2023 | 1 | 2,158 | $574M |
| 2024 | 1 | 4,342 | $661M |
Nearby 401(k) Plans in Washington
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- The Boeing Company 401(k) Retirement Plan $63.5B · 118,434
- Microsoft Corporation Savings Plus 401(k) Plan $39.6B · 109,797
- Costco 401(k) Retirement Plan $25.9B · 181,505
- Amazon 401(k) Plan $17.7B · 1,230,308
- T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust $7.3B · 75,797
Scale composition for Western Washington U.a. Supplemental Pension Plan
Western Washington U.a. Supplemental Pension Plan reports $472M in end-of-year assets across 5,114 participants (0.004% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.005% of 93,925,755 covered participants) - about $92,391 per participant (67% of the national average assets-per-participant) . Net income for plan year 2022 was -$84M.
This plan identity (EIN 911879397, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $472M to $661M (+39.9%) while covered participants moved from 5,114 to 4,342 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 5,114 | $472M | This page |
| 2023 | 2,158 | $574M | Open filing |
| 2024 · index core | 4,342 | $661M | Open filing |
The same sponsor also keeps 1 other index-core plan on PlainRetire:
- Western Washington U.a. Supplemental Pension Plan (401(k), $661M, 4,342 participants)
Western Washington U.a. Supplemental Pension Plan's out-of-state 401(k) peers by assets and headcount
Outside Washington, the nearest 401(k) by assets is Schreiber Foods, Inc. 401(k) Retirement Savings Plan in WI ($473M); by covered participants it is Liberty Healthcare Services Retirement Plan in NC (5,117 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($472M here).
- Schreiber Foods, Inc. 401(k) Retirement Savings Plan (WI) $473M · 6,029
- Infineon Technologies Savings Plan (CA) $472M · 2,132
- Jackson Lewis P.C. Retirement Savings Plan (NY) $472M · 1,408
- Ieee, Inc. Savings and Investment Plan (NJ) $473M · 1,131
Similar participant headcount
Nearest other-state filings by covered participants (5,114 participants); asset peers above are excluded.
- Liberty Healthcare Services Retirement Plan (NC) 5,117 · 3 off
- U.S. Anesthesia Partners, Inc. 401(k) Plan (TX) 5,118 · 4 off
- Tkc Holdings, Inc. Retirement Plan (MO) 5,118 · 4 off
- Clark Associates, Inc. Multiple Employer 401(k) Plan (PA) 5,122 · 8 off
DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.