401(k) · DOL Form 5500 · 2023

Northwestern Memorial Healthcare 401(k) Plan

Data updated 2026-08-25

$4.5B
Total assets Very large vs avg
33,082
Participants Very large workforce
100th
Percentile by assets National rank
$137,090
Avg per participant Near avg balance/head
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Official DOL plan name: Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan · Sponsored by Northwestern Memorial Healthcare · Illinois · Healthcare & Social Assistance

$4.5B in assets, 33,082 participants

Northwestern Memorial Healthcare's Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan reported $4.5B in total assets and 33,082 participants in its 2023 DOL Form 5500 filing, ranking in the 100th 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.

  • #17,653 in Healthcare & Social Assistance (17,684 peers)

Coverage in Illinois

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan covers 33,082 participants in Illinois, 42x the typical Illinois plan (state average ~779 per filing). Assets: $4.5B.

#17,653
in Healthcare & Social Assistance (17,684 peers)
+25.7%
assets growth YoY
46×
vs typical plan assets (national mean)

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan's outsized position by total assets

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan vs every filed plan by assets

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

$4,535,222,216 Highest reported value at or above every one 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

Northwestern Memorial Employee 401(k) Pre-Tax 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. Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan is a mega filing (33,082 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan reported net income rose from -$468M in the plan year 2022 filing to $928M in the plan year 2023 filing.
  • Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan end-of-year assets rose from $3.6B in the plan year 2022 filing to $4.5B in the plan year 2023 filing.
  • Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan reported participants rose from 31,855 in the plan year 2022 filing to 33,082 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 363152959 · Northwestern Memorial Healthcare PY 2023 · 401(k)

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan · $4.5B · 33,082 · 100th

  • IND $4.5B
  • IND 33,082
  • IND 100th
  • IND 401(k)
  • IND near Kimberly-Clark Corporation 401(k) & Profit Sharing Plan
  • IND ind #17653

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 Healthcare & Social Assistance retirement plans → · Plans in Illinois →

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan in the asset neighbourhood

Fidelity National Information Services, Inc. 401(k) Profit Sharing PlanFidelity National Informatio…$4.6BNew York Life Insurance Company Employee Progress Sharing Investment PlanNew York Life Insurance Comp…$4.6BKimberly-Clark Corporation 401(k) & Profit Sharing PlanKimberly-Clark Corporation 4…$4.6BNorthwestern Memorial Employee 401(k) Pre-Tax Savings PlanNorthwestern Memorial Employ…$4.5BChs/Community Health Systems, Inc. Retirement Savings PlanChs/Community Health Systems…$4.5B
End-of-year total assets ($B) among Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Illinois filing particulars

Total Assets (Beginning of Year)$3.6B
Net Assets (End of Year)$4.5B
Net Income$928M
Employer EIN363152959
Plan Effective Date2000-09-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Northwestern Memorial Healthcare)

Sponsor-wide plan assets over time

All Northwestern Memorial Healthcare plans reported in each filing year

Latest sponsor-wide plan assets
$5.4B 50.65046383380511% vs 2022
2024 filing year
$3B$4B$5B$6B 202220232024 $3.61B $5.43B ▲ +50.4%
Year Plans Participants Total Assets
2022 1 31,855 $3.6B
2023 1 33,082 $4.5B
2024 1 35,963 $5.4B

Nearby 401(k) Plans in Illinois

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

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 05101520 Total assets ($B) Participants Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan, Total assets ($B): 4.535222216 · Participants: 33082Northwestern Memorial Employee 401(k) Pre-Tax Savings PlanAccenture United States 401(k) Match Savings Plan, Total assets ($B): 17.594548115 · Participants: 69974Accenture United States 401(k) Match Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 16.935002041 · Participants: 60246State Farm 401(k) Savings PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 14.496191 · Participants: 38012Abbott Laboratories Stock Retirement PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 14.367975914 · Participants: 14959United Airlines Pilot Retirement Account PlanWalgreens Retirement Savings Plan, Total assets ($B): 13.444551767 · Participants: 235331Walgreens Retirement Savings Plan
Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan side-by-side with 3 peers →

Scale composition for Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan reports $4.5B in end-of-year assets across 33,082 participants (0.037% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.035% of 93,925,755 covered participants) - about $137,090 per participant (99% of the national average assets-per-participant) . Net income for plan year 2023 was $928M.

This plan identity (EIN 363152959, plan #003) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $3.6B to $5.4B (+50.7%) while covered participants moved from 31,855 to 35,963 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 31,855 $3.6B Open filing
2023 33,082 $4.5B This page
2024 · index core 35,963 $5.4B Open filing

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

Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Kimberly-Clark Corporation 401(k) & Profit Sharing Plan in WI ($4.6B); by covered participants it is Ensign Services, Inc. 401(k) Retirement Savings Plan in CA (33,003 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (33,082 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 Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan assets move in 2023? ▼
Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan grew sharply - up 25.7% during 2023, from $3.6B to $4.5B. Reported net income was $928M.
How have Northwestern Memorial Healthcare plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Northwestern Memorial Healthcare's sponsor-wide assets grew 50.7%, from $3.6B to $5.4B.
Where does Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan rank by assets among Form 5500 filers? ▼
Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan ranks in the 100th 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 Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Kimberly-Clark Corporation 401(k) & Profit Sharing Plan in WI ($4.6B, 11,236 participants).
Which 401(k) plans cover a similar participant headcount to Northwestern Memorial Employee 401(k) Pre-Tax Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Ensign Services, Inc. 401(k) Retirement Savings Plan in CA (33,003 participants, $286M 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 363152959.

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.