Summary Prospectus by Investment Company (Form 497K)

Summary Prospectus

October 1, 2025

VALIC Company I

Core Bond Fund

(Ticker: VCBDX)

The Fund's Statutory Prospectus and Statement of Additional Information, each dated October 1, 2025, as amended and supplemented from time to time, and the most recent shareholder reports are incorporated into and made part of this Summary Prospectus by reference. The Fund is offered only to registered and unregistered separate accounts of The Variable Annuity Life Insurance Company and its affiliates and to qualifying retirement plans and IRAs and is not intended for use by other investors.

Before you invest, you may want to review the Fund's Statutory Prospectus, which contains more information about the Fund and its risks. You can find the Statutory Prospectus and the above-incorporated information online at https://www.corebridgefinancial.com/rs/prospectus-and-reports/annuities#underlyingfunds. You can also get this information at no cost by calling 800-448-2542 or by sending an e-mail request to [email protected].

The Securities and Exchange Commission has not approved or disapproved these securities, nor has it determined that this Summary Prospectus is accurate or complete. It is a criminal offense to state otherwise.

Investment Objective

The Fund seeks the highest possible total return consistent with conservation of capital through investments in medium- to high-quality fixed-income securities.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. The table and the example below do not reflect the separate account fees charged in the variable annuity or variable life insurance policy ("Variable Contracts") in which the Fund is offered. If separate account fees were shown, the Fund's annual operating expenses would be higher. Please see your Variable Contract prospectus for more details on the separate account fees.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)  

Management Fees	0.41%
Other Expenses	0.10%
Total Annual Fund Operating Expenses	0.51%
Fee Waivers and/or Expense Reimbursements1	0.03%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1	0.48%

Expense Example

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same (except that the Example incorporates any applicable fee waiver and/or expense limitation arrangements for only the first year). The Example does not reflect charges imposed by the Variable Contract. If the Variable Contract fees were reflected, the expenses would be higher. See the Variable Contract prospectus for information on such charges. Although your actual costs may be higher or lower, based on these assumptions and the net expenses shown in the fee table, your costs would be: 

1 Year	3 Years	5 Years	10 Years
$49	$161	$282	$638

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance.

During the most recent fiscal year, the Fund's portfolio turnover rate was 44% of the average value of its portfolio.

Principal Investment Strategies of the Fund

The Fund invests, under normal circumstances, at least 80% of net assets in medium- to high-quality fixed-income

Core Bond Fund

securities, including corporate debt securities of domestic and foreign companies, or in securities issued or guaranteed by the U.S. Government such as treasury obligations, including treasury coupon strips and treasury principal strips, and other U.S. Government securities, mortgage-related and mortgage-backed or non-mortgage asset-backed securities. The Fund may invest a significant portion or all of its assets in mortgage-related and mortgage-backed securities at the subadviser's discretion, including securities issued or guaranteed by the Federal National Mortgage Association ("FNMA"), the Federal Home Loan Mortgage Corporation ("FHLMC") or the Government National Mortgage Association. Mortgage-related and mortgage-backed securities may be structured as collateralized mortgage obligations (agency and non-agency), stripped mortgage-backed securities, commercial mortgage-backed securities, mortgage pass-through securities and cash and cash equivalents. These securities may be structured such that payments consist of interest-only (IO), principal-only (PO) or principal and interest.

Although the Fund invests primarily in medium-to high-quality fixed-income securities, which are considered investment-grade, up to 20% of its net assets may be invested in lower-quality fixed-income securities (often referred to as "junk bonds"), including "sub-prime mortgages," which are considered below investment-grade. A fixed-income security will be considered investment-grade if it is rated Baa3 or higher by Moody's Investor Services, Inc. or BBB-or higher by S&P Global Ratings or determined to be of comparable quality by the subadviser. The Fund expects to invest no more than 10% of its assets in "sub-prime" mortgage-related securities at the time of purchase.

Up to 40% of the Fund's total assets may be invested in U.S. dollar-denominated fixed-income securities issued by foreign issuers, including fixed-income securities issued by issuers in emerging markets. Emerging market countries are countries that major international financial institutions and financial organizations, such as the World Bank and Bloomberg, generally consider to be less economically mature than developed nations, and include most countries in the world except Australia, Canada, Japan, New Zealand, the U.S., the United Kingdom and most western European countries and Hong Kong. These fixed-income securities are rated investment grade or higher at the time of investment (or the unrated equivalent). However, the subadvisers are not required to dispose of a security if its rating is downgraded.

Up to 20% of the Fund's net assets may be invested in interest-bearing short-term investments, such as

commercial paper, bankers' acceptances, bank certificates of deposit, and other cash equivalents and cash.

One subadviser's, investment strategy relies on many short-term factors, including current information about a company, investor interest, price movements of a company's securities and general market and monetary conditions.

The other subadviser buys and sells securities and investments for the Fund based on its view of individual securities and market sectors. Taking a long-term approach, the subadviser looks for individual fixed income investments that it believes will perform well over market cycles. The subadviser is value oriented and makes decisions to purchase and sell individual securities and instruments after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, duration, liquidity, legal provisions and the structure of the transaction.

Consequently, the Fund may engage in active and frequent trading of portfolio securities in an effort to achieve its investment objective.

In order to generate additional income, the Fund may lend portfolio securities to broker-dealers and other financial institutions provided that the value of the loaned securities does not exceed 30% of the Fund's total assets. These loans earn income for the Fund and are collateralized by cash and securities issued or guaranteed by the U.S. Government or its agencies or instrumentalities.

Investors will be given at least 60 days' written notice in advance of any change to the Fund's 80% investment policy set forth above.

Principal Risks of Investing in the Fund

As with any mutual fund, there can be no assurance that the Fund's investment objective will be met or that the net return on an investment in the Fund will exceed what could have been obtained through other investment or savings vehicles. Shares of the Fund are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation. If the value of the assets of the Fund goes down, you could lose money.

The following is a summary of the principal risks of investing in the Fund.

Management Risk. The investment style or strategy used by the Fund may fail to produce the intended result. A

Core Bond Fund

subadviser's assessment of a particular security or company may prove incorrect, resulting in losses or underperformance.

Active Trading Risk. High portfolio turnover rates that are associated with active trading may result in higher transaction costs, which can adversely affect the Fund's performance. Active trading tends to be more pronounced during periods of increased market volatility.

Credit Risk. The Fund may suffer losses if the issuer of a fixed-income security owned by the Fund is unable to make interest or principal payments.

Call or Prepayment Risk. During periods of falling interest rates, a bond issuer may "call" a bond to repay it before its maturity date. The Fund may only be able to invest the bond's proceeds at lower interest rates, resulting in a decline in the Fund's income.

Foreign Investment Risk. Investment in foreign securities involves risks due to several factors, such as illiquidity, the lack of public information, changes in the exchange rates between foreign currencies and the U.S. dollar, unfavorable political, social and legal developments, or economic and financial instability. Foreign companies are not subject to the U.S. accounting and financial reporting standards and may have riskier settlement procedures. U.S. investments that are denominated in foreign currencies or that are traded in foreign markets, or securities of U.S. companies that have significant foreign operations may be subject to foreign investment risk.

Emerging Markets Risk. In addition to the risks associated with investments in foreign securities, emerging market securities are subject to additional risks, which cause these securities generally to be more volatile than securities of issuers located in developed countries.

Currency Risk. Because the Fund's foreign investments are generally held in foreign currencies, the Fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar. Such gains or losses may be substantial.

Interest Rate Risk. Fixed income securities may be subject to volatility due to changes in interest rates. The value of fixed-income securities may decline when interest rates go up or increase when interest rates go down. The interest earned on fixed-income securities may decline when interest rates go down or increase when interest rates go up. Duration is a measure of interest rate

risk that indicates how price-sensitive a bond is to changes in interest rates. Longer-term and lower coupon bonds tend to be more sensitive to changes in interest rates. For example, a bond with a duration of three years will decrease in value by approximately 3% if interest rates increase by 1%. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility, and could negatively impact the Portfolio's performance. Any future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates.

Junk Bond Risk. High yielding, high risk fixed-income securities (often referred to as "junk bonds") may involve significantly greater credit risk, market risk and interest rate risk compared to higher rated fixed-income securities. Issuers of junk bonds are less secure financially and their securities are more sensitive to downturns in the economy. The market for junk bonds may not be as liquid as that for more highly rated securities.

Market Risk. The Fund's share price can fall because of weakness in the broad market, a particular industry, or specific holdings or due to adverse social, political or economic developments here or abroad, changes in investor psychology, technological disruptions, or heavy institutional selling and other conditions or events (including, for example, military confrontations, war, terrorism, trade wars, disease/virus outbreaks and epidemics). The prices of individual securities may fluctuate, sometimes dramatically, from day to day. The prices of stocks and other equity securities tend to be more volatile than those of fixed-income securities.

Mortgage-Backed Securities Risk. Mortgage-backed securities are similar to other debt securities in that they are subject to credit risk and interest rate risk. Mortgage-backed securities may be issued or guaranteed by the U.S. Government, its agencies or instrumentalities or may be non-guaranteed securities issued by private issuers. These securities are also subject to the risk that issuers will prepay the principal more quickly or more slowly than expected, which could cause the Fund to invest the proceeds in less attractive investments or increase the volatility of their prices. CMOs, which are a type of mortgage-backed security, may be less liquid and may exhibit greater price volatility than other types of mortgage-and asset-backed securities. "Subprime" mortgages are subject to certain other risks, including prepayment and call risks. The risk of default, for "sub-prime" mortgages is also generally higher than other types of mortgage-backed securities. The structure of

Core Bond Fund

some of these securities may be complex and there may be less available information than other types of debt securities.

Non-Mortgage Asset Backed Securities Risk. Certain non-mortgage asset-backed securities are issued by private parties rather than the U.S. Government or its agencies or government-sponsored entities. If a private issuer fails to pay interest or repay principal, the assets backing these securities may be insufficient to support the payments on the securities.

Securities Lending Risk. Engaging in securities lending could increase the market and credit risk for Fund investments. The Fund may lose money if it does not recover borrowed securities, the value of the collateral falls, or the value of investments made with cash collateral declines. The Fund's loans will be collateralized by securities issued or guaranteed by the U.S. Government or its agencies and instrumentalities, which subjects the Fund to the credit risk of the U.S. Government or the issuing federal agency or instrumentality. If the value of either the cash collateral or the Fund's investments of the cash collateral falls below the amount owed to a borrower, the Fund also may incur losses that exceed the amount it earned on lending the security. Securities lending also involves the risks of delay in receiving additional collateral or possible loss of rights in the collateral if the borrower fails. Another risk of securities lending is the risk that the loaned portfolio securities may not be available to the Fund on a timely basis and the Fund may therefore lose the opportunity to sell the securities at a desirable price.

U.S. Government Obligations Risk. U.S. Treasury obligations are backed by the "full faith and credit" of the U.S. Government and are generally considered to have low credit risk. Unlike U.S. Treasury obligations, securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises, including FNMA and FHLMC, may or may not be backed by the full faith and credit of the U.S. Government and are therefore subject to greater credit risk than securities issued or guaranteed by the U.S. Treasury.

Performance Information

As a result of a reorganization which occurred on May 24, 2021 (the "Reorganization"), the Fund acquired all of the assets and liabilities of the Core Bond Fund (the "Predecessor Fund"), a series of VALIC Company II. The returns presented for the Fund reflect the performance of

the Predecessor Fund. The Fund had not yet commenced operations prior to the Reorganization. The performance information below is based on the performance of the Predecessor Fund for periods prior to the date of the Reorganization. The Fund and the Predecessor Fund had the same investment objectives, strategies and portfolio management team as of the date of the Reorganization.

The following Risk/Return Bar Chart and Table illustrate the risks of investing in the Fund by showing changes in the Fund's performance from calendar year to calendar year and comparing the Fund's average annual returns to those of the Bloomberg U.S. Aggregate Bond Index (a broad-based securities market index), which is relevant to the Fund because it has characteristics similar to the Fund's investment strategies. Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown. Of course, past performance of the Fund is not necessarily an indication of how the Fund will perform in the future.

J.P. Morgan Investment Management Inc. ("JPMIM") was added as a subadvisor to Fund effective April 29, 2024. Prior to that date, PineBridge Investments LLC ("PineBridge") served as sole subadviser to the Fund and to the Predecessor Fund since January 1, 2002.

 

During the period shown in the bar chart: 

Highest Quarterly Return:	December 31, 2023	7.41%
Lowest Quarterly Return:	March 31, 2022	-6.33%
Year to Date Most Recent Quarter:	June 30, 2025	4.25%

Core Bond Fund

Average Annual Total Returns (For the periods ended December 31, 2024)  

	1 Year	5 Years	10 Years
Fund	1.69%	0.04%	1.59%
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	1.25%	-0.33%	1.35%

Investment Adviser

The Fund's investment adviser is VALIC.

The Fund is subadvised by PineBridge and JPMIM.

Portfolio Managers 

Name and Title	Portfolio Manager of the Fund Since
PineBridge
Robert Vanden Assem, CFA Managing Director, Head of Developed Markets Investment Grade Fixed Income	2002
John Yovanovic, CFA Managing Director, Co-Head of Leveraged Finance, Portfolio Manager	2007
Dana Burns Managing Director, Senior Portfolio Manager, Investment Grade Fixed Income	2014
JPMIM
Richard Figuly Managing Director, Lead Portfolio Manager	2024
Justin Rucker Managing Director, Portfolio Manager	2024
Andrew Melchiorre Managing Director, Portfolio Manager	2024
Edward Fitzpatrick III Managing Director, Portfolio Manager	2024

Purchases and Sales of Fund Shares

Shares of the Funds may only be purchased or redeemed through Variable Contracts offered by the separate

accounts of VALIC or other participating life insurance companies and through qualifying retirement plans ("Plans") and IRAs. Shares of each Fund may be purchased and redeemed each day the New York Stock Exchange is open, at the Fund's net asset value determined after receipt of a request in good order.

The Funds do not have any initial or subsequent investment minimums. However, your insurance company may impose investment or account value minimums. The prospectus (or other offering document) for your Variable Contract contains additional information about purchases and redemptions of the Funds' shares.

Tax Information

A Fund will not be subject to U.S. federal income tax so long as it qualifies as a regulated investment company and distributes its income and gains each year to its shareholders. However, contractholders may be subject to federal income tax (and a federal Medicare tax of 3.8% that applies to net income, including taxable annuity payments, if applicable) upon withdrawal from a Variable Contract. Contractholders should consult the prospectus (or other offering document) for the Variable Contract for additional information regarding taxation.

Payments to Broker-Dealers and
Other Financial Intermediaries

The Funds are not sold directly to the general public but instead are offered to registered and unregistered separate accounts of VALIC and its affiliates and to Plans and IRAs. The Funds and their related companies may make payments to the sponsoring insurance company or its affiliates for recordkeeping and distribution. These payments may create a conflict of interest as they may be a factor that the insurance company considers in including the Funds as underlying investment options in a variable contract. Visit your sponsoring insurance company's website for more information.