401(k) · DOL Form 5500 · 2022

Old Second Bancorp, Inc 401(k) Plan

Data updated 2026-08-25

$76M
Total assets Below avg plan size
882
Participants Near avg headcount
91st
Percentile by assets National rank
$85,976
Avg per participant Below avg balance/head
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Official DOL plan name: Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust · Sponsored by Old Second Bancorp, Inc · Illinois · Finance & Insurance

$76M in assets, 882 participants

Old Second Bancorp, Inc's Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust reported $76M in total assets and 882 participants in its 2022 DOL Form 5500 filing, ranking in the 91st 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.

  • #7,929 in Finance & Insurance (9,261 peers)

Where Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust sits by assets

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust sits in the top 10% of all filed plans by assets, $76M for 882 participants (~$85,976/participant), down 12.2% in 2022.

#7,929
in Finance & Insurance (9,261 peers)
-12.2%
assets change YoY
0.8×
vs typical plan assets (national mean)

The plan reported a net loss of $11M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust's outsized position by total assets

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$75,831,060 Top 9% higher than 91% of 139,123 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 2022

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust sits mid-pack in the medium band (882 participants).

Form 5500 schedule snapshot

Filing strip 363143493 · Old Second Bancorp, Inc PY 2022 · 401(k)

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust · $76M · 882 · 91st

  • VS-ST $76M
  • VS-ST 882
  • VS-ST 91st
  • VS-ST 401(k)
  • VS-ST near Young Electric Sign Company Profit Sharing 401(k) Retirement Plan and Trust
  • VS-ST ind #7929

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 Illinois →

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust in the asset neighbourhood

Utah Emergency Physicians, P. C. Profit Sharing PlanUtah Emergency Physicians, P…$76MOld Second Bancorp, Inc Employees 401(k) Savings Plan & TrustOld Second Bancorp, Inc Empl…$76MYoung Electric Sign Company Profit Sharing 401(k) Retirement Plan and TrustYoung Electric Sign Company …$76MConstellium Muscle Shoals Group Savings and Investment Plan for Salaried EmployeesConstellium Muscle Shoals Gr…$76MKimray, Inc. 401(k) Profit Sharing PlanKimray, Inc. 401(k) Profit S…$76M
End-of-year total assets ($M) among Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$86M
Net Assets (End of Year)$76M
Net Income-$11M
Employer EIN363143493
Plan Effective Date1985-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Old Second Bancorp, Inc)

Sponsor-wide plan assets over time

All Old Second Bancorp, Inc plans reported in each filing year

Latest sponsor-wide plan assets
$102M 33.93921303486988% vs 2022
2024 filing year
$70M$80M$90M$100M$110M 202220232024 $75.8M $102M ▲ +33.9%
Year Plans Participants Total Assets
2022 1 882 $76M
2023 1 816 $89M
2024 1 852 $102M

Nearby 401(k) Plans in Illinois

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

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 -505101520 Total assets ($B) Participants Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust, Total assets ($B): 0.07583106 · Participants: 882Old Second Bancorp, Inc Employees 401(k) Savings Plan & TrustState Farm 401(k) Savings Plan, Total assets ($B): 14.651519685 · Participants: 53616State Farm 401(k) Savings PlanAccenture United States 401(k) Match and Savings Plan, Total assets ($B): 14.283954811 · Participants: 66653Accenture United States 401(k) Match and Savings PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 13.333286 · Participants: 36136Abbott Laboratories Stock Retirement PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 11.816542826 · Participants: 13437United Airlines Pilot Retirement Account PlanWalgreens Retirement Savings Plan, Total assets ($B): 11.682551768 · Participants: 238072Walgreens Retirement Savings Plan
Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust side-by-side with 3 peers →

Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Young Electric Sign Company Profit Sharing 401(k) Retirement Plan and Trust in UT ($76M); by covered participants it is Pioneer Title Agency, Inc. 401(k) Plan in AZ (882 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (882 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust assets move in 2022? ▼
Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust pulled back noticeably - down 12.2% during 2022, from $86M to $76M. Reported net income was -$11M.
How have Old Second Bancorp, Inc plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Old Second Bancorp, Inc's sponsor-wide assets grew 33.9%, from $76M to $102M.
Where does Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust rank by assets among Form 5500 filers? ▼
Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust ranks in the 91st percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust? ▼
Among 401(k) plans in other states, the closest by assets is Young Electric Sign Company Profit Sharing 401(k) Retirement Plan and Trust in UT ($76M, 880 participants).
Which 401(k) plans cover a similar participant headcount to Old Second Bancorp, Inc Employees 401(k) Savings Plan & Trust? ▼
Among 401(k) plans in other states, the closest by covered participants is Pioneer Title Agency, Inc. 401(k) Plan in AZ (882 participants, $46M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 363143493.

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.