Form 11-K MAGNA INTERNATIONAL INC For: Dec 31

1. Description of the Plan

The following description of The Magna Group of Companies Retirement Savings Plans (the Plan) provides only general information. Participants should refer to the restated Plan Agreement for a more complete description of the Plan’s provisions.

General

Certain employees of Magna International of America, Inc. (the Primary Employer) and other participating subsidiaries and affiliates of the Primary Employer (collectively, the Employer) are eligible to participate in the Plan.

The Plan was established by the Primary Employer as the Magna International of America 401(k) Plan on August 1, 1992. The Primary Employer restated the Plan’s terms, provisions and conditions effective January 1, 2023.

The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA). The Plan Agreement provides that the Plan may invest in common stock of Magna International Inc. (Magna), the parent company of the Primary Employer.

The Plan is administered by the Primary Employer and individuals appointed by the Board of Directors of the Primary Employer. Principal Trust Company (Principal) is the appointed Trustee of the Plan.

401(k) Eligibility

An employee is eligible to participate on the first day of employment and shall be eligible for matching contributions on the first day of the month following six months of service and attainment of 18 years of age.

Deferred Profit-Sharing Eligibility

An employee is eligible to receive profit-sharing contributions if the employee is employed at a participating employer on the last day of the plan year and the employee received compensation for 1,000 hours of service in the plan year. As of January 1, 2022, the Deferred Profit-Sharing portion of the Plan was modified so that only certain union employees were eligible.

Contributions and Automatic Enrollment

The 401(k) portion of the Plan is funded by contributions from employees who may elect to contribute from 1% to 50% of wages, as defined, subject to the maximum amount permitted under the Internal Revenue Code (the Code). The Employer may make a discretionary matching contribution. For the 2025 and 2024 plan years, the Employer Matching Contribution was 50% of the first 6% of base earnings contributed by a participant, unless a collective bargaining agreement states differently. Employees may also defer 1% to 100% of their bonus for a given year, which is not eligible for a matching contribution by the Employer. Participants in the Plan may also contribute amounts representing distributions from other qualified defined benefit or defined contribution plans.

Employees are automatically enrolled after a 30-day opt-out period. The Employer withholds an amount equal to a percentage of eligible employee compensation (other than bonus pay), until such time as the employee changes or stops the contribution.

New hires are automatically enrolled at 6% of employee compensation (other than bonus pay), except for newly hired employees covered under certain collective bargaining agreements who will be automatically enrolled at 3%.

The Plan has an automatic increase feature whereby the contribution percentage is increased by 1% per year up to a maximum contribution percentage of 6% for participants making a contribution of less than 6%, unless the employee changes or stops the contribution. The automatic increase does not apply to certain employees who are covered by a collective bargaining agreement.

2. Significant Accounting Policies

3. Investments

In accordance with ASC 820, Fair Value Measurement, the Plan utilizes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The three levels of the fair value hierarchy are described as follows:

Level 1 - Inputs to the valuation methodology are unadjusted quoted prices for identical assets in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets in active markets, quoted prices for identical or similar assets in inactive markets, other inputs that are observable or can be corroborated by observable market data.

Level 3 - Inputs to the valuation methodology are both significant to the fair value measurement and unobservable.

The following valuation methodologies were used to measure the fair value of the Plan’s investments. There have been no changes in the methodologies used at December 31, 2025 or 2024.

The Principal Stable Value Fund – This asset is daily valued by the trustee, Principal Global Investors Trust, based on the underlying investments which consist primarily of a diversified portfolio of stable value investment contracts issued by life insurance companies, banks and other financial institutions, the performance of which may be predicated on underlying fixed income investments. The Fund provides for daily redemptions at the reported net asset value (NAV). Participants are permitted to redeem units at NAV on the valuation date. Participants who liquidate are prohibited from moving assets back into the fund for 90 days.

Pooled Separate Accounts (PSAs) – These assets are valued based on the underlying investments (i.e., common stock, mutual funds, short-term securities). While the majority of the underlying assets values are based on quoted prices, the NAV of the pooled separate account is not publicly quoted. The NAV is reported by the fund managers as of the financial statement date based on recent transaction prices. The NAV is used as a practical expedient to estimate fair value. This practical expedient is not used when it is determined to be probable that the fund will sell the investment for an amount different than the reported NAV. The PSAs held by the Plan provide for daily redemptions by the Plan at reported NAV with no advance notice requirement. The Plan is permitted to redeem investment units at NAV on the measurement date. Principal may place transfer or liquidation restrictions on the U.S. Property Separate Account. Effective close of market July 1, 2022, a contractual limitation will delay the payment of most withdrawal or transfer requests from the Principal US Property Separate Account (Separate Account) but for no more than three years from the effective date. In accordance with the terms of the Employer’s group annuity contract, delayed payment requests will be honored proportionately. This means transactions may be processed in a series of payments until enough cash is available to pay obligations. The Separate Account invests the majority of assets in owned private equity commercial real estate. It focuses on properties anticipated to return both lease income and appreciation of the buildings’ marketable value. The property holdings usually contain real estate from the multi-family, office, warehouse/manufacturing, and retail sectors. This Separate Account is subject to investment and liquidity risk and other risks inherent in real estate such as those associated with general and local economic conditions.

Generally, the PSA investments in any class can be transferred once every 30 days at the current NAV per share based on the fair value of the underlying assets. Participants are not allowed to transfer back into that originating class until the 30-day period has expired. There are no unfunded commitments relating to these investments.

Common/Collective Trusts (CCTs) – These assets are valued at the NAV of the units held by the Plan, which are based on the quoted market prices of the underlying securities of the funds. The unit price is based on the value of the underlying investment assets owned by the fund, minus its liabilities, and then divided by the number of shares outstanding. The NAV is used as a practical expedient to estimate fair value. This practical expedient is not used when it is determined to be probable that the fund will sell the investment for an amount different than the reported NAV. The CCTs provide for daily redemptions by the Plan at reported NAV, with no advance notice requirements. There are no unfunded commitments relating to these investments. All CCTs are Direct Filing Entities.

Employer Securities – These assets are valued at the closing price quoted on a recognized securities exchange.

Mutual Funds – These assets are valued at quoted market prices of shares held by the Plan.

4. Non-Participant-Directed Investments

The Magna International Inc. Common Stock includes both participant and non-participant-directed investments, which are co-mingled. Substantially all contributions and associated appreciation (depreciation), income and dividends are non-participant-directed until amounts are available for transfer as described in the Plan Agreement. Information about the net assets available for benefits and the significant components of the changes in net assets available for benefits for non-participant-directed investments is as follows:

5. Related Party and Party-In-Interest Transactions

Certain Plan investments are stable value funds, common/collective trusts, and pooled separate accounts managed by Principal. Principal is the trustee as defined by the Plan and qualifies as a party-in-interest. The Plan also invests in the common stock of the Employer, which had dividends paid totaling $10,380 and $10,946 thousand, purchases totaling $25,776 and $34,708 thousand, and sales totaling $41,206 and $52,154 thousand, for 2025 and 2024, respectively. Notes receivable from participants are also considered party-in interest transactions.

6. Income Tax Status

The Plan has received a determination letter from the Internal Revenue Service dated March 15, 2018 stating that the Plan is qualified under Section 401(a) of the Code and, therefore, the related trust is exempt from taxation. The Plan is required to operate in conformity with the Code to maintain its qualification. The Plan has been amended since receiving the determination letter. However, the Plan Administrator believes the Plan is being operated in compliance with the applicable requirements of the Code and, therefore, believes the Plan, as amended, is qualified and the related trust is tax exempt.

Accounting principles generally accepted in the United States of America require plan management to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the Internal Revenue Service. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. Additionally, the Plan is no longer open to examinations by the Internal Revenue Service for years prior to 2022.

7. Delinquent Participant Contributions

The Employer failed to remit certain employee deferrals and loan repayments to the Plan in a timely manner according to DOL regulations during 2025 and 2024 aggregating to $8,102 and $2,372 thousand, respectively.

8. Commitments and Contingencies

On April 30, 2020, a putative class action lawsuit was filed in the United States District Court, Eastern District of Michigan against Magna International of America, Inc. and its Board of Directors, the Magna International of America, Inc. Investment Committee, the United States Pension and Retirement Savings Committee, and several unnamed individuals (the Defendants). The Complaint alleges claims under the Employee Retirement Income Security Act of 1974 (ERISA) for breach of fiduciary duty and failure to monitor other fiduciaries with respect to the fees and expenses associated with investment options in the Magna Group of Companies Retirement Savings Plans. The plaintiffs seek various forms of relief, including damages and declaratory and injunctive relief. On March 27, 2023 the Court denied plaintiffs’ motion for class certification on the basis that the representative plaintiffs were poorly suited to represent the class but allowing plaintiffs to find alternative representatives. On April 26, 2023, plaintiffs filed a motion to substitute plaintiffs with alternative representatives. On June 5, 2023, the court issued an opinion - allowing in part and denying in part - Magna’s motion for summary judgment. On January 25, 2024, the Court granted class certification, approving of the plaintiffs’ alternative representative plaintiffs. On May 3, 2024, the parties attended a mandatory, court-ordered settlement conference and reached a settlement in principle of the class action. On January 10, 2025, the Court granted final approval of the settlement, maintaining class certification for settlement, and approving the plan of allocation for the settlement. Magna specifically denies and makes no admissions of liability or wrongdoing as a result of the settlement.

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The Magna Group of Companies Retirement Savings Plans

Schedule H, Line 4i – Schedule of Assets (Held at End of Year)

(in thousands)

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* A party in interest, as defined by ERISA.

** The cost of participant-directed investments is not required to be disclosed.