PlanOptica
CompaniesPricing
Sign inTry Pro free
Try Pro free
  1. Companies/
  2. Old Second National Bank
  • Benefits analytics
  • Plan summaries
  • Retirement plans
  • Health & Benefits plans

Filings through Oct 24, 2026.

Top hat

Old Second National Bank

EIN 36-1577458-banking-Latest filing 2025
Plans
2
Retirement
1
$33.1M assets
Health & Benefits
1
$12.5M premiums
Participants
1,631
37 SOUTH RIVER STREET - AURORA, IL 60506630-906-2000oldsecond.comLinkedIn501-1000 employeesbanking
Plans on this EIN
2 filings
#001401(k)-$33.1M - 545 part#501Mixed-$12.5M - 1,442 lives

Health & Benefits portfolio - carriers, brokers and premium across this company's health and benefits plan.

Benefits portfolio analytics

1 plan / $12.5M premiums / 1,442 covered lives

Coverage by line

Premium dollars by benefit type (bundled lines overlap)

  • Health$11.6M
  • Prescription drug$11.6M
  • Stop-loss$11.6M
  • Other$669K
  • Long-term disability$571K
  • Life$533K
  • +1 more
Total $12.5M7 rows
See carrier and broker market share with Pro.
Pro unlocks:
  • Top carriers and their premium share
  • Top brokers and their commission share

Plan summaries

Each card links to its plan page. The plan page shows fees vs peers, audit grade, history and counterparties.

Retirement#001

OLD SECOND NATIONAL BANK POOLED EMPLOYER PLAN

401(k)

Assets$33.1M
Participants545
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
Health & Benefits#501

OLD SECOND BANCORP, INC. GROUP MEDICAL, DENTAL, AND LIFE INSURANCE PLAN

Mixed - BLUE CROSS BLUE SHIELD OF ILLINOIS

Premiums$12.5M
Covered lives1,442
On the plan page
Premium breakdownCarriersBrokersCoverage stats
Open plan

Retirement plans

1 plan on this EIN

PlanNameTypeAssetsParticipantsLatest year
#001OLD SECOND NATIONAL BANK POOLED EMPLOYER PLAN401(k)$33.1M5452025
  • OLD SECOND NATIONAL BANK POOLED EMPLOYER PLAN$33.1M
    #001 · 401(k) · 2025545

Health & Benefits plans

1 plan on this EIN

PlanNameFundingCarrierPremiumsCoveredLatest year
#501OLD SECOND BANCORP, INC. GROUP MEDICAL, DENTAL, AND LIFE INSURANCE PLANMixedBLUE CROSS BLUE SHIELD OF ILLINOIS$12.5M1,4422025
  • OLD SECOND BANCORP, INC. GROUP MEDICAL, DENTAL, AND LIFE INSURANCE PLAN$12.5M
    #501 · Mixed · BLUE CROSS BLUE SHIELD OF ILLINOIS · 20251,442
Retirement plans
Health & Benefits plans

On this page

  1. Benefits analytics
  2. Plan summaries
  3. Retirement plans
  4. Health & Benefits plans
PlanOptica

Advisors and brokers use PlanOptica to research retirement and health plans. Each plan has 10 years of filings, a peer rank and a source for every number.

Product
  • Retirement
  • Health & Benefits
  • Funds & Managers
  • Companies
  • Pricing
Data
  • Downloads
  • Retirement plans CSV
  • Health & Benefits plans CSV
  • Plan holdings CSV
  • Custom analysis
  • API and AI agents
Resources
  • Free ERISA search
  • Free EIN lookup
  • All providers
  • Health & Benefits providers
  • Filter catalog
  • Documentation
  • Glossary
  • Compare
Company
  • About
  • Research
  • Press
  • Contact
  • Privacy
  • Terms
© 2026 PlanOptica