Company: STBA
Filing Date: 2025-06-23
Form Type: 11-K
Source: 0000719220-25-000040
Chunk: 4

Company: S&T BANCORP INC
Filing Date: 2025-06-23
Form: 11-K
Chunk 4
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 employees of S&T Bank who have reached one hour of service, except leased and collectively bargained employees.

#### Contributions
The Plan is a vehicle for accepting employee pre- or after-tax contributions and employer tax-deferred contributions. Participants determine the amount of their pre- or after-tax cash contributions to the Plan up to 50% of their eligible compensation. Employer matching contributions are equal to 100% on the first 1% of eligible compensation and 50% on the next 5% of eligible compensation, not to exceed 3.5% of eligible compensation. Employer discretionary contributions are determined by the Board of Directors of the Plan Sponsor. There were no discretionary employer contributions during 2024 or 2023. Participants may also contribute amounts representing distributions from other qualified retirement plans (rollovers). Participants who have attained age 50 before the end of the plan year are eligible to make catch-up contributions.

The Plan provides for automatic enrollment of newly eligible employees. Automatic pre-tax contributions are 6% of eligible compensation. Additionally, unless the participant changes his or her deferral percentage, the withholding will increase by 1% annually, up to a maximum of 10%. These pre-tax contributions and the employer matching contributions are invested in the Dodge & Cox Balanced Fund unless otherwise directed by the participant. Automatically enrolled employees can decline to participate or modify participation in accordance with the requirements of the Pension Protection Act of 2006.

Participants may elect to invest their contributions in one or more of the available investment options or in one of the risk-based portfolios. The risk-based portfolios are composed of varying allocations of the available investment options, which participants may select, based on their risk profile, ranging from conservative to aggressive. Employer matching contributions are invested in the same proportions. The Employer discretionary contributions, if any, are made to the investment option holding S&T Bancorp, Inc. common stock. Participants are permitted to transfer all balances in their accounts between investment options at any time.

#### Participant Accounts
Individual accounts are maintained for each participant. Each participant’s account is credited with the participant’s contributions, employer matching contributions and allocations of other Employer contributions and fund earnings, which are allocated based on the participant’s compensation or fund balances, respectively. The Plan passes through quarterly administrative fees to those participants no longer employed by the Employer. Fees paid by participants and the Plan are further described under Administrative Fees in Note 2. The benefit to which a participant is entitled is the benefit that can be provided from the participant’s vested account.

#### Vesting
Participants are