401(k) · DOL Form 5500 · 2024

Western Digital Corporation 401(k) Plan

Data updated 2026-08-25

$2.5B
Total assets Very large vs avg
6,558
Participants Above avg headcount
99th
Percentile by assets National rank
$377,597
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Western Digital Corporation 401(k) Plan · Sponsored by Western Digital Corporation · California · Manufacturing

$2.5B in assets, 6,558 participants

Western Digital Corporation's Western Digital Corporation 401(k) Plan reported $2.5B in total assets and 6,558 participants in its 2024 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.

  • #17,576 in Manufacturing (17,777 peers)

Coverage in California

Western Digital Corporation 401(k) Plan covers 6,558 participants in California, 10x the typical California plan (state average ~630 per filing). Assets: $2.5B.

#17,576
in Manufacturing (17,777 peers)
+11.3%
assets growth YoY
25×
vs typical plan assets (national mean)

Western Digital Corporation 401(k) Plan's outsized position by total assets

Western Digital Corporation 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$2,476,282,302 Top 1% higher than 99% of 123,620 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 2024

Western Digital Corporation 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Western Digital Corporation 401(k) Plan lands in the large band (6,558 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Western Digital Corporation 401(k) Plan reported participants fell from 7,690 in the plan year 2023 filing to 6,558 in the plan year 2024 filing.
  • Western Digital Corporation 401(k) Plan end-of-year assets rose from $2.2B in the plan year 2023 filing to $2.5B in the plan year 2024 filing.
  • Western Digital Corporation 401(k) Plan reported net income rose from $237M in the plan year 2023 filing to $252M in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 330956711 · Western Digital Corporation PY 2024 · 401(k)

Western Digital Corporation 401(k) Plan · $2.5B · 6,558 · 99th

  • PART $2.5B
  • PART 6,558
  • PART 99th
  • PART 401(k)
  • PART near Compass Group Retirement Plan
  • PART ind #17576

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 California →

Western Digital Corporation 401(k) Plan in the asset neighbourhood

Western Digital Corporation 401(k) PlanWestern Digital Corporation …$2.5BCompass Group Retirement Plan$2.5BUS Foods 401(k) Plan$2.5BUnum Group 401(k) Retirement PlanUnum Group 401(k) Retirement…$2.5BThe Magna Group of Companies Retirement Savings PlansThe Magna Group of Companies…$2.5B
End-of-year total assets ($B) among Western Digital Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

California filing particulars

Total Assets (Beginning of Year)$2.2B
Net Assets (End of Year)$2.5B
Net Income$252M
Employer EIN330956711
Plan Effective Date1984-10-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Western Digital Corporation)

Sponsor-wide plan assets over time

All Western Digital Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$2.5B 24.584959934062425% vs 2022
2024 filing year
$1.8B$2B$2.2B$2.4B$2.6B 202220232024 $1.99B $2.48B ▲ +24.6%
Year Plans Participants Total Assets
2022 1 7,874 $2.0B
2023 1 7,690 $2.2B
2024 1 6,558 $2.5B

Nearby 401(k) Plans in California

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

Western Digital Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. 050000100000150000 0204060 Total assets ($B) Participants Western Digital Corporation 401(k) Plan, Total assets ($B): 2.476282302 · Participants: 6558Western Digital Corporation 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 48.738057415 · Participants: 116712Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 31.02646504 · Participants: 58962Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 24.850880304 · Participants: 55298Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 24.714519387 · Participants: 101450Apple 401(k) PlanCisco Systems,Inc. 401(k) Plan, Total assets ($B): 22.728425546 · Participants: 40452Cisco Systems,Inc. 401(k) Plan
Western Digital Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Western Digital Corporation 401(k) Plan side-by-side with 3 peers →

Scale composition for Western Digital Corporation 401(k) Plan

Western Digital Corporation 401(k) Plan reports $2.5B in end-of-year assets across 6,558 participants (0.020% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.007% of 93,925,755 covered participants) - about $377,597 per participant (2.7x the national average assets-per-participant) . Net income for plan year 2024 was $252M.

This plan identity (EIN 330956711, plan #003) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $2.0B to $2.5B (+24.6%) while covered participants moved from 7,874 to 6,558 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 7,874 $2.0B Open filing
2023 7,690 $2.2B Open filing
2024 · index core 6,558 $2.5B This page

Western Digital Corporation 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Compass Group Retirement Plan in NC ($2.5B); by covered participants it is Saint-Gobain Corporation 401(k) Plan for Salaried Employees in PA (6,560 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($2.5B here).

Similar participant headcount

Nearest other-state filings by covered participants (6,558 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Western Digital Corporation 401(k) Plan assets move in 2024? ▼
Western Digital Corporation 401(k) Plan grew at a solid clip - up 11.3% during 2024, from $2.2B to $2.5B. Reported net income was $252M.
How have Western Digital Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Western Digital Corporation's sponsor-wide assets grew 24.6%, from $2.0B to $2.5B.
Where does Western Digital Corporation 401(k) Plan rank by assets among Form 5500 filers? ▼
Western Digital Corporation 401(k) Plan ranks in the 99th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Western Digital Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Compass Group Retirement Plan in NC ($2.5B, 244,875 participants).
Which 401(k) plans cover a similar participant headcount to Western Digital Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Saint-Gobain Corporation 401(k) Plan for Salaried Employees in PA (6,560 participants, $1.8B in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 330956711.

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.