401(k) · DOL Form 5500 · 2024

Northwestern Mutual Life Ins. Co. 401(k) Plan

Data updated 2026-08-25

$2.9B
Total assets Very large vs avg
8,232
Participants Very large workforce
99th
Percentile by assets National rank
$351,342
Avg per participant High balance/head
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Official DOL plan name: The Northwestern Mutual Employee Savings Plan · Sponsored by Northwestern Mutual Life Ins. Co. · Wisconsin · Finance & Insurance

$2.9B in assets, 8,232 participants

Northwestern Mutual Life Ins. Co.'s The Northwestern Mutual Employee Savings Plan reported $2.9B in total assets and 8,232 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.

  • #8,450 in Finance & Insurance (8,549 peers)

Coverage in Wisconsin

The Northwestern Mutual Employee Savings Plan covers 8,232 participants in Wisconsin, 15x the typical Wisconsin plan (state average ~563 per filing). Assets: $2.9B.

#8,450
in Finance & Insurance (8,549 peers)
+9.1%
assets growth YoY
29×
vs typical plan assets (national mean)

The Northwestern Mutual Employee Savings Plan's outsized position by total assets

The Northwestern Mutual Employee Savings Plan vs every filed plan by assets

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

$2,892,246,472 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

The Northwestern Mutual Employee Savings 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. The Northwestern Mutual Employee Savings Plan lands in the large band (8,232 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • The Northwestern Mutual Employee Savings Plan end-of-year assets rose from $2.7B in the plan year 2023 filing to $2.9B in the plan year 2024 filing.
  • The Northwestern Mutual Employee Savings Plan reported net income fell from $265M in the plan year 2023 filing to $241M in the plan year 2024 filing.
  • The Northwestern Mutual Employee Savings Plan reported participants fell from 8,299 in the plan year 2023 filing to 8,232 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 390509570 · Northwestern Mutual Life Ins. Co. PY 2024 · 401(k)

The Northwestern Mutual Employee Savings Plan · $2.9B · 8,232 · 99th

  • PCT $2.9B
  • PCT 8,232
  • PCT 99th
  • PCT 401(k)
  • PCT near Paccar Inc Savings Investment Plan
  • PCT ind #8450

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 Finance & Insurance retirement plans → · Plans in Wisconsin →

The Northwestern Mutual Employee Savings Plan in the asset neighbourhood

Swagelok Retirement Savings PlanSwagelok Retirement Savings …$2.9BThe Northwestern Mutual Employee Savings PlanThe Northwestern Mutual Empl…$2.9BPaccar Inc Savings Investment PlanPaccar Inc Savings Investmen…$2.9BAramco U.S. Savings Plan$2.9BCenterpoint Energy Savings PlanCenterpoint Energy Savings P…$2.9B
End-of-year total assets ($B) among The Northwestern Mutual Employee Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Wisconsin filing particulars

Total Assets (Beginning of Year)$2.7B
Net Assets (End of Year)$2.9B
Net Income$241M
Employer EIN390509570
Plan Effective Date1985-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Northwestern Mutual Life Ins. Co.)

Sponsor-wide plan assets over time

All Northwestern Mutual Life Ins. Co. plans reported in each filing year

Latest sponsor-wide plan assets
$9.6B 12.691710490574781% vs 2022
2024 filing year
$8B$8.5B$9B$9.5B$10B 202220232024 $8.56B $9.65B ▲ +12.7%
Year Plans Participants Total Assets
2022 4 27,987 $8.6B
2023 4 29,929 $9.3B
2024 4 30,138 $9.6B

Nearby 401(k) Plans in Wisconsin

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

The Northwestern Mutual Employee Savings Plan vs. nearby 401(k) plans in Wisconsin, assets vs. participants Scatter plot of 6 data points. 020000400006000080000100000 24681012 Total assets ($B) Participants The Northwestern Mutual Employee Savings Plan, Total assets ($B): 2.892246472 · Participants: 8232The Northwestern Mutual Employee Savings PlanAdvocate Aurora Health 401(k) Plan, Total assets ($B): 10.487791739 · Participants: 80015Advocate Aurora Health 401(k) PlanJohnson Controls Retirement Savings and Investment Plan, Total assets ($B): 7.188548319 · Participants: 28489Johnson Controls Retirement Savings and Investment PlanFiserv 401(k) Savings Plan, Total assets ($B): 5.136404794 · Participants: 26372Fiserv 401(k) Savings PlanKimberly-Clark Corporation 401(k) & Profit Sharing Plan, Total assets ($B): 4.988151 · Participants: 11661Kimberly-Clark Corporation 401(k) & Profit Sharing PlanRockwell Automation Retirement Savings Plan, Total assets ($B): 3.765132976 · Participants: 9217Rockwell Automation Retirement Savings Plan
The Northwestern Mutual Employee Savings Plan vs. nearby 401(k) plans in Wisconsin, assets vs. participants
Compare The Northwestern Mutual Employee Savings Plan side-by-side with 3 peers →

Scale composition for The Northwestern Mutual Employee Savings Plan

The Northwestern Mutual Employee Savings Plan reports $2.9B in end-of-year assets across 8,232 participants (0.023% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.009% of 93,925,755 covered participants) - about $351,342 per participant (2.5x the national average assets-per-participant) . Net income for plan year 2024 was $241M.

This plan identity (EIN 390509570, plan #005) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $2.4B to $2.9B (+21.2%) while covered participants moved from 7,423 to 8,232 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 7,423 $2.4B Open filing
2023 8,299 $2.7B Open filing
2024 · index core 8,232 $2.9B This page

The same sponsor also keeps 3 other index-core plans on PlainRetire:

The Northwestern Mutual Employee Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Wisconsin, the nearest 401(k) by assets is Paccar Inc Savings Investment Plan in WA ($2.9B); by covered participants it is Resourcing Edge Retirement Savings Plan in TX (8,232 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($2.9B here).

Similar participant headcount

Nearest other-state filings by covered participants (8,232 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 The Northwestern Mutual Employee Savings Plan assets move in 2024? ▼
The Northwestern Mutual Employee Savings Plan grew at a solid clip - up 9.1% during 2024, from $2.7B to $2.9B. Reported net income was $241M.
How have Northwestern Mutual Life Ins. Co. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Northwestern Mutual Life Ins. Co.'s sponsor-wide assets grew 12.7%, from $8.6B to $9.6B.
Where does The Northwestern Mutual Employee Savings Plan rank by assets among Form 5500 filers? ▼
The Northwestern Mutual Employee Savings 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 The Northwestern Mutual Employee Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Paccar Inc Savings Investment Plan in WA ($2.9B, 11,793 participants).
Which 401(k) plans cover a similar participant headcount to The Northwestern Mutual Employee Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Resourcing Edge Retirement Savings Plan in TX (8,232 participants, $321M 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 390509570.

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.