401(k) · DOL Form 5500 · 2023
Northwestern Mutual Life Ins. Co. 401(k) Plan
Data updated 2026-08-11
- $2.7B
- Total assets
- 8,299
- Participants
- 99th
- Percentile by assets
- $319,439
- Avg per participant
Official DOL plan name: The Northwestern Mutual Employee Savings Plan · Sponsored by Northwestern Mutual Life Ins. Co. · Wisconsin · Finance & Insurance
$2.7B in assets, 8,299 participants
Northwestern Mutual Life Ins. Co.'s The Northwestern Mutual Employee Savings Plan reported $2.7B in total assets and 8,299 participants in its 2023 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 127,072 plans)
- #8,771 in Finance & Insurance (8,869 peers)
Coverage in Wisconsin
The Northwestern Mutual Employee Savings Plan covers 8,299 participants in Wisconsin, 15x the typical Wisconsin plan (state average ~563 per filing). Assets: $2.7B.
- $2.7B
- total plan assets (2023 EOY)
- 8,299
- covered participants
- 99th
- percentile by assets (of 127,072 plans)
- $319,439
- avg assets per participant
What changed between DOL Form 5500 filings
plan year 2022 → plan year 2023
- The Northwestern Mutual Employee Savings Plan reported net income rose from -$121M in the plan year 2022 filing to $265M in the plan year 2023 filing.
- The Northwestern Mutual Employee Savings Plan reported participants rose from 7,423 in the plan year 2022 filing to 8,299 in the plan year 2023 filing.
- The Northwestern Mutual Employee Savings Plan end-of-year assets rose from $2.4B in the plan year 2022 filing to $2.7B in the plan year 2023 filing.
Participants vs Wisconsin filers
In Wisconsin, the average filing covers about 563 participants across 2,940 plans. The Northwestern Mutual Employee Savings Plan reports 8,299 participants - 15x that state average ($2.7B EOY assets).
Wisconsin filing particulars
| Total Assets (Beginning of Year) | $2.4B |
|---|---|
| Net Assets (End of Year) | $2.7B |
| Net Income | $265M |
| Employer EIN | 390509570 |
| Plan Effective Date | 1985-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Northwestern Mutual Life Ins. Co.)
| 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
- Advocate Aurora Health 401(k) Plan $9.1B · 76,956
- Johnson Controls Retirement Savings and Investment Plan $6.2B · 28,904
- Fiserv 401(k) Savings Plan $4.8B · 25,280
- Kimberly-Clark Corporation 401(k) & Profit Sharing Plan $4.6B · 11,236
- Rockwell Automation Retirement Savings Plan $3.6B · 8,877
Scale composition for The Northwestern Mutual Employee Savings Plan
The Northwestern Mutual Employee Savings Plan reports $2.7B in end-of-year assets across 8,299 participants (0.022% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.009% of 93,925,755 covered participants) - about $319,439 per participant (2.3x the national average assets-per-participant) . Net income for plan year 2023 was $265M.
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 | This page |
| 2024 · index core | 8,232 | $2.9B | Open filing |
The same sponsor also keeps 4 other index-core plans on PlainRetire:
- The Northwestern Mutual Employee Retirement Plan (Defined Benefit (Pension), $3.3B, 8,254 participants)
- The Northwestern Mutual Employee Savings Plan (401(k), $2.9B, 8,232 participants)
- The Northwestern Mutual Life Insurance Company Agents Retirement Plan (Defined Benefit (Pension), $2.1B, 7,653 participants)
- The Northwestern Mutual Life Insurance Company Agents Persistency Fee Guarantee Fund (Profit Sharing, $1.4B, 5,999 participants)
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to The Northwestern Mutual Employee Savings Plan by total assets, not by location.
- Kinder Morgan Savings Plan (TX) $2.7B · 10,615
- Unfi 401(k) Plan (RI) $2.7B · 25,475
- Paccar Inc Savings Investment Plan (WA) $2.7B · 11,084
- Latham & Watkins 401(k) Savings and Profit Sharing Plan (CA) $2.7B · 4,911
Frequently Asked Questions
How did The Northwestern Mutual Employee Savings Plan assets move in 2023? ▼
How have Northwestern Mutual Life Ins. Co. plan assets changed over time? ▼
Where does The Northwestern Mutual Employee Savings Plan rank by assets among Form 5500 filers? ▼
Which 401(k) plans are similar in size to The Northwestern Mutual Employee Savings Plan? ▼
Next read for The Northwestern Mutual Employee Savings…
Filing takeaways
Ways to act on The Northwestern Mutual Employee Savings Plan's numbers.
- By total assets, The Northwestern Mutual Employee Savings 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 Wisconsin. Compare plans
- Northwestern Mutual Life Ins. Co.'s sponsor-wide assets have grown 12.7% since 2022 across 3 plan years on file. More Finance & Insurance plans