401(k) · DOL Form 5500 · 2023

Sidley Austin LLP 401(k) Plan

Data updated 2026-08-11

$1.7B
Total assets
3,400
Participants
99th
Percentile by assets
$498,059
Avg per participant
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Official DOL plan name: Sidley Austin LLP Savings and Investment Plan · Sponsored by Sidley Austin LLP · Illinois · Professional & Technical Services

$1.7B in assets, 3,400 participants

Sidley Austin LLP's Sidley Austin LLP Savings and Investment Plan reported $1.7B in total assets and 3,400 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)
  • #20,217 in Professional & Technical Services (20,321 peers)

Coverage in Illinois

Sidley Austin LLP Savings and Investment Plan covers 3,400 participants in Illinois, 4.4x the typical Illinois plan (state average ~779 per filing). Assets: $1.7B.

$1.7B
total plan assets (2023 EOY)
3,400
covered participants
99th
percentile by assets (of 127,072 plans)
$498,059
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Sidley Austin LLP Savings and Investment Plan reported net income rose from -$295M in the plan year 2022 filing to $270M in the plan year 2023 filing.
  • Sidley Austin LLP Savings and Investment Plan end-of-year assets rose from $1.4B in the plan year 2022 filing to $1.7B in the plan year 2023 filing.
  • Sidley Austin LLP Savings and Investment Plan reported participants rose from 3,100 in the plan year 2022 filing to 3,400 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Participants vs Illinois filers

In Illinois, the average filing covers about 779 participants across 5,745 plans. Sidley Austin LLP Savings and Investment Plan reports 3,400 participants - 4.4x that state average ($1.7B EOY assets).

Illinois filing particulars

Total Assets (Beginning of Year)$1.4B
Net Assets (End of Year)$1.7B
Net Income$270M
Employer EIN364474078
Plan Effective Date1986-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Sidley Austin LLP)

$2.5B$3B$3.5B$4B 202220232024 $2.76B $3.5B ▲ +26.8%
Total plan assets by year, all Sidley Austin LLP plans on file
Year Plans Participants Total Assets
2022 5 5,794 $2.8B
2023 5 6,260 $3.2B
2024 5 6,174 $3.5B

Nearby 401(k) Plans in Illinois

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

Sidley Austin LLP Savings and Investment Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Sidley Austin LLP Savings and Investment Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 05101520 Total assets ($B) Participants Sidley Austin LLP Sa…Accenture United Sta…State Farm 401(k) Sa…Abbott Laboratories …United Airlines Pilo…Walgreens Retirement…
Sidley Austin LLP Savings and Investment Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Sidley Austin LLP Savings and Investment Plan by total assets, not by location.

Frequently Asked Questions

How did Sidley Austin LLP Savings and Investment Plan assets move in 2023?
Sidley Austin LLP Savings and Investment Plan grew sharply - up 18.9% during 2023, from $1.4B to $1.7B. Reported net income was $270M.
How have Sidley Austin LLP plan assets changed over time?
Across 3 plan years on file (2022-2024), Sidley Austin LLP's sponsor-wide assets grew 26.7%, from $2.8B to $3.5B.
Where does Sidley Austin LLP Savings and Investment Plan rank by assets among Form 5500 filers?
Sidley Austin LLP Savings and Investment Plan ranks in the 99th 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 Sidley Austin LLP Savings and Investment Plan?
Among 401(k) plans in other states, the closest by assets is International Paper Company Hourly Savings Plan in TN ($1.7B, 20,831 participants).

Next read for Sidley Austin LLP Savings and Investment…

Filing takeaways

Ways to act on Sidley Austin LLP Savings and Investment Plan's numbers.