Company: WCC
Filing Date: 2025-06-17
Form Type: 11-K
Source: 0000929008-25-000018
Chunk: 6

Company: WESCO INTERNATIONAL INC
Filing Date: 2025-06-17
Form: 11-K
Chunk 6
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 maximum deferral rate, or elect automatic increases at a different rate, up to a maximum of 3%.

#### Vesting
Participants are fully vested in the value of their contributions and related investment income at all times. Participants hired prior to January 1, 2022 vest in their allocated share of employer matching and discretionary contributions at 0% for less than one year of service, 25% for one year of service, and 100% for two or more years of service. Participants hired on or after January 1, 2022 vest in their allocated share of employer matching contributions at 0% for less than two years of service and 100% for two or more years of service.

#### Distributions
A participant may not withdraw any amount from their vested account balance unless they are age 59½, retire, become deceased or disabled, terminate employment, or experience financial hardship. A participant with at least five years of continuous service may withdraw matching contributions and earnings on matching contributions.

Under present IRS rules, a “hardship” means an immediate and heavy need to draw on financial resources to meet obligations related to health, education, housing, or death of a family member.

Upon termination of service, distributions of a participant's vested account balance are made as either a single lump-sum payment, substantially equal monthly, quarterly, semi-annual or annual installments, or a transfer to the trustee or custodian of another eligible retirement plan.

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#### WESCO Distribution, Inc.

#### Retirement Savings Plan

#### Notes to Financial Statements

#### Forfeitures
Employer contributions forfeited by participants not vested at their termination date are used to reinstate previously forfeited account balances of former participants who have returned to the Company, reduce employer contributions in accordance with the Plan's provisions, pay Plan expenses or are allocated to participants' accounts. Total forfeitures that reduced employer contributions in 2024 and 2023 were approximately $3.9 million and $1.3 million, respectively. As of December 31, 2024 and 2023, a balance of approximately $0.8 million and $1.0 million, respectively, was available to reinstate previously forfeited account balances, reduce employer contributions, pay Plan expenses or allocate to participants' accounts.

#### Participant Accounts
An account is maintained for each participant, which is credited with the participant's and the employer's matching contributions, an allocation of employer's discretionary contributions, and plan earnings and charged with benefit payments and an