Prosperity Bancshares, Inc. 401(k) Plan: Login, Facts & Contact Information

Prosperity Bancshares, Inc. 401(k) Plan Facts

Plan name
PROSPERITY BANCSHARES, INC. 401(K) PROFIT SHARING PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
PROSPERITY BANCSHARES, INC.
Participants
4,420 (3,884 active employees)
Former employees with a balance
647
Plan assets
$357,829,392 at Dec 31, 2024
Average account balance
$110,509 across 3,238 accounts
Employer contributions
$6,933,405 in plan year 2024 (27% of all contributions)
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1984
✓ 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 Jun 25, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $26.1 million went into the plan in contributions, $6.93 million of it from the employer (27%).
  • $42.4 million was paid out to participants.
  • Investment and other income added $43.4 million.
  • Administrative expenses were $290,851, about $90 per account.

How the Prosperity Bancshares, Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20193,416$248.0 million$5.50 million$15.9 million
20204,368$291.0 million$7.60 million$13.6 million
20214,389$325.4 million$7.48 million$27.5 million
20224,143$276.5 million$6.40 million$26.9 million
20234,319$323.7 million$6.09 million$35.0 million
20244,420$357.8 million$6.93 million$42.4 million

Prosperity Bancshares, Inc. 401(k) Contact Information

Phone
979-543-1238
Mailing address
4295 SAN FELIPE ST., HOUSTON TX 77027
Plan sponsor
PROSPERITY BANCSHARES, INC.
Employer identification number (EIN)
74-2331986
Plan number
001

Questions about the Prosperity Bancshares, Inc. 401(k)

Does Prosperity Bancshares, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $6.93 million, 27% of all contributions.

Does the Prosperity Bancshares, Inc 401(k) have automatic enrollment?

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

How many people are in the Prosperity Bancshares, Inc 401(k) plan?

4,420 participants at the start of plan year 2024, 3,884 of them active employees, and 647 former employees who still had money in the plan.

What is the average 401(k) balance at Prosperity Bancshares, Inc?

About $110,509 per account: $357.8 million in plan assets across 3,238 accounts with a balance at the end of plan year 2024.

Who manages the Prosperity Bancshares, Inc 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INSTITUTIONAL) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Prosperity Bancshares, Inc. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits 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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