401(k) · DOL Form 5500 · 2024

Western Digital Corporation 401(k) Plan

Data updated 2026-07-24

$2.5B
Total assets: 6,558
Participants: 99th
Percentile by assets: $377,597
Avg per participant

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.

99th percentile by assets (of 116,472 plans)

Coverage in California

Western Digital Corporation 401(k) Plan covers 6,558 participants in California, 10x the typical California plan (state average ~637 per filing). Assets: $2.5B.

$2.5B
total plan assets (2024 EOY): 6,558
covered participants: 99th
percentile by assets (of 116,472 plans): $377,597
avg assets per participant

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 →

State

California

Industry

Manufacturing

Participants vs California filers

In California, the average filing covers about 637 participants across 14,392 plans. Western Digital Corporation 401(k) Plan reports 6,558 participants - 10x that state average ($2.5B EOY assets).

California filing particulars

Total Assets (Beginning of Year)	$2.2B
Net Assets (End of Year)	$2.5B
Net Income	$252M
Employer EIN	330956711
Plan Effective Date	1984-10-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Western Digital Corporation)

Total plan assets by year, all Western Digital Corporation plans on file

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

Google LLC 401(k) Savings Plan $48.7B · 116,712
Oracle Corporation 401(k) Savings and Investment Plan $31.0B · 58,962
Intel 401(k) Savings Plan $24.9B · 55,298
Apple 401(k) Plan $24.7B · 101,450
Cisco Systems,Inc. 401(k) Plan $22.7B · 40,452

Compare Western Digital Corporation 401(k) Plan side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Western Digital Corporation 401(k) Plan by total assets, not by location.

Compass Group Retirement Plan (NC) $2.5B · 244,875
US Foods 401(k) Plan (IL) $2.5B · 27,135
Unum Group 401(k) Retirement Plan (ME) $2.5B · 9,451
The Magna Group of Companies Retirement Savings Plans () $2.5B · 25,008

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 116,472 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).

Next read for Western Digital Corporation 401(k) Plan

Filing takeaways

Ways to act on Western Digital Corporation 401(k) Plan's numbers.

By total assets, Western Digital Corporation 401(k) Plan ranks among the largest 1% of all filed plans. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in California. Compare plans
Western Digital Corporation's sponsor-wide assets have grown 24.6% since 2022 across 3 plan years on file. More Manufacturing plans

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.