Old Second Bancorp, Inc 401(k) Plan: Login, Facts & Contact Information

Old Second Bancorp, Inc 401(k) Plan Facts

Plan name
OLD SECOND BANCORP, INC. EMPLOYEES' 401(K) SAVINGS PLAN & TRUST
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
OLD SECOND BANCORP, INC.
Participants
999 (883 active employees)
Former employees with a balance
133
Plan assets
$101,567,525 at Dec 31, 2024
Average account balance
$125,858 across 807 accounts
Employer contributions
$2,339,879 in plan year 2024 (30% of all contributions)
Recordkeeper
Epic Retirement Plan Services
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1985
Employer contributions Automatic enrollment Default investment for undecided participants Participants choose their own investments Self-directed brokerage window Profit sharing Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Jul 18, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $7.92 million went into the plan in contributions, $2.34 million of it from the employer (30%).
  • $7.75 million was paid out to participants.
  • Investment and other income added $12.4 million.
  • Administrative expenses were $27,480, about $34 per account.

How the Old Second Bancorp, Inc 401(k) changed, 20192024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019616$70.7 million$1.15 million$7.04 million
2020699$77.2 million$1.27 million$4.29 million
2021862$86.4 million$1.37 million$7.32 million
20221,091$75.8 million$1.99 million$9.09 million
20231,031$89.0 million$2.16 million$8.75 million
2024999$101.6 million$2.34 million$7.75 million

Old Second Bancorp, Inc 401(k) Contact Information

Phone
630-892-0202
Mailing address
37 S. RIVER ST., AURORA IL 60506
Plan sponsor
OLD SECOND BANCORP, INC.
Employer identification number (EIN)
36-3143493
Plan number
003

Questions about the Old Second Bancorp, Inc 401(k)

Does Old Second Bancorp, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $2.34 million, 30% of all contributions.

Does the Old Second Bancorp, Inc 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Old Second Bancorp, Inc 401(k) plan?

999 participants at the start of plan year 2024, 883 of them active employees, and 133 former employees who still had money in the plan.

What is the average 401(k) balance at Old Second Bancorp, Inc?

About $125,858 per account: $101.6 million in plan assets across 807 accounts with a balance at the end of plan year 2024.

Who manages the Old Second Bancorp, Inc 401(k) accounts?

EPIC Retirement Plan Services is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Old Second Bancorp, Inc. How do I access my 401(k)?

Your account stays with EPIC Retirement Plan Services after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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