Transamerica High Yield Muni

Summary Prospectus March 1, 2026, as revised July 21, 2026

Class A (THAYX)

Class C (THCYX)

Class I (THYIX)

Class I2 (THYTX)

Thank you for being a valued Transamerica shareholder. This Summary Prospectus will provide you with updated information about your investment in the fund.

Before you invest, you may want to review the fund’s prospectus, which contains more information about the fund and its risks. You can find the fund’s prospectus, reports to shareholders, and other information about the fund, including the fund’s statement of additional information online at https://www.transamerica.com/financial-pro/investments/prospectus. You can also get this information at no cost by calling 1-888-233-4339 or by sending an e-mail request to orders@mysummaryprospectus.com, or from your financial professional. The fund’s prospectus and statement of additional information, both dated March 1, 2026, as supplemented from time to time, are incorporated by reference into this summary prospectus.

Investment Objective: Seeks to maximize total return through investment in medium- and lower-grade municipal securities that are exempt from federal income tax.

Fees and Expenses: This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Transamerica Funds. More information about these and other discounts is available from your financial professional, in the “Waivers and Reductions of Sales Charges” section on page 330 of the fund’s prospectus, in the Appendix – “Waivers and Discounts Available from Intermediaries,” and in the fund’s statement of additional information (SAI) under the heading “Purchase of Shares” on page 75.

Shareholder Fees (fees paid directly from your investment)

Class:	A	C	I	I2
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	3.25%	None	None	None
Maximum deferred sales charge (load) (as a percentage of purchase price or redemption proceeds, whichever is lower)	None1	1.00%2	None	None

1 Class A shares of the fund purchased in amounts of $1 million or more that are not subject to an initial sales charge may be subject to a 1.00% contingent deferred sales charge if those shares are redeemed within 24 months of their purchase. A deferred sales charge may apply to certain redemptions of Class A shares of the fund purchased through an exchange from another Transamerica Fund.

2 Purchases of Class C shares of the fund may be subject to a 1.00% contingent deferred sales charge if those shares are redeemed within 12 months of their purchase. A deferred sales charge may apply to certain redemptions of Class C shares of the fund purchased through an exchange from another Transamerica Fund.

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

Class:	A	C	I	I2
Management fees	0.54%	0.54%	0.54%	0.54%
Distribution and service (12b-1) fees	0.25%1	1.00%1	None	None
Other expenses	0.22%	0.24%	0.27%	0.17%

Class:	A	C	I	I2
Total annual fund operating expenses	1.01%	1.78%	0.81%	0.71%
Fee waiver and/or expense reimbursement1,2	0.10%	0.27%	0.05%	0.00%
Total annual fund operating expenses after fee waiver and/or expense reimbursement	0.91%	1.51%	0.76%	0.71%

Transamerica Capital, LLC has contractually agreed to waive 0.10% of the 0.25% distribution and service (12b-1) fees for Class A shares and 0.25% of the 1.00% distribution and service (12b-1) fees for Class C shares through March 1, 2027. This arrangement cannot be terminated before that date without the consent of the Board of Trustees and is not subject to recapture.

Contractual arrangements have been made with the fund’s investment manager, Transamerica Asset Management, Inc. (“TAM”), through March 1, 2027 to waive fees and/or reimburse fund expenses to the extent that total annual fund operating expenses exceed 1.01% for Class A shares, 1.76% for Class C shares, 0.76% for Class I shares and 0.73% for Class I2 shares, excluding, as applicable, acquired fund fees and expenses, interest (including borrowing costs and overdraft charges), taxes, brokerage commissions, dividend and interest expenses on securities sold short, extraordinary expenses and other expenses not incurred in the ordinary course of the fund’s business. These arrangements cannot be terminated prior to March 1, 2027 without the Board of Trustees’ consent. TAM is permitted to recapture amounts waived and/or reimbursed to a class during any of the 36 months from the date on which TAM waived fees and/or reimbursed expenses for the class if the class’ total annual fund operating expenses have fallen to a level below the limits described above. In no case will TAM recapture any amount that would result, on any particular business day of the fund, in the class’ total annual operating expenses exceeding the applicable limits described above or any other lower limit then in effect.

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 all shares at the end of those periods (unless otherwise indicated). The Example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. The Example reflects applicable waivers and/or reimbursements for the duration of such arrangement(s). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

If the shares are redeemed at the end of each period:

	1 year	3 years	5 years	10 years
Class A	$415	$626	$855	$1,512
Class C	$254	$534	$939	$2,072
Class I	$78	$254	$445	$997
Class I2	$73	$227	$395	$883

If the shares are not redeemed:

	1 year	3 years	5 years	10 years
Class A	$415	$626	$855	$1,512
Class C	$154	$534	$939	$2,072
Class I	$78	$254	$445	$997
Class I2	$73	$227	$395	$883

Portfolio Turnover: The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. 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 portfolio turnover rate for the fund was 61% of the average value of its portfolio.

Principal Investment Strategies: Under normal circumstances, the fund’s sub-adviser, Belle Haven Investments, L.P. (the “sub-adviser”), invests at least 80% of the fund’s net assets (plus the amount of borrowings, if any, for investment purposes) in municipal fixed-income securities the interest from which is exempt from federal income tax and the federal alternative minimum tax (“AMT”) applicable to individuals. Interest income from some of the municipal obligations in which the fund may invest may be subject to the AMT. The fund primarily invests in “high yield” municipal bonds under normal market conditions. For this purpose, “high yield” municipal bonds are those rated medium to lower grade. The fund normally invests primarily in general obligation and revenue bonds issued by U.S. municipal issuers, as well as issuers in U.S. territories and possessions. The fund may invest 25% or more of its total net assets in any sector or sub-sector of the municipal bond market.

The fund pursues an actively managed, total return strategy that seeks to identify inefficiencies in the municipal bond market. The sub-adviser’s investment process is engineered to seek to exploit mispricing that the sub-adviser aims to identify at the issuer, credit, industry, security and/or maturity level based on macro-economic and fundamental analysis. Analysis is also used to determine the fund’s yield curve positioning. Investment decisions are made by the sub-adviser in an effort to maximize total return while balancing portfolio risk.

Medium grade municipal bonds are those rated “A” to “BBB” by Standard & Poor’s Rating Services (“S&P”). Lower-grade municipal bonds (commonly known as “junk bonds”) are those rated below “Baa” by Moody’s Investors Service, Inc. (“Moody’s”) or lower than “BBB” by S&P or Fitch, Inc. (“Fitch”) or comparable ratings by other nationally recognized rating organizations (or, in the case

of unrated securities, determined by the sub-adviser to be of comparable quality). The fund has the flexibility to invest the remainder of its assets in a broad array of issuers across the credit spectrum.

The fund may also invest up to 15% of its net assets in municipal bonds that are distressed securities. Distressed securities are securities that are the subject of bankruptcy proceedings or are rated in the lowest rating categories by at least one independent rating agency (“CC” or lower by S&P or Fitch or “Ca” or lower by Moody’s), or if unrated, judged to be of comparable quality by the sub-adviser. The fund may also invest in higher quality debt securities.

Under normal conditions, the duration of the fund will generally vary between three and 20 years. Duration is a measure used to determine the sensitivity of a security’s price to changes in interest rates. The longer a security’s duration, the more sensitive it will be to changes in interest rates. The fund does not limit the maturity of the securities in which it invests. The maturity of a fixed-income security is the measure of time remaining until the final payment on the security is due. However, under normal circumstances, the fund may focus on longer-term maturities in an effort to capture the higher yields generally associated with such maturities.

The fund may invest more than 25% of its net assets in securities relating to one political subdivision, such as any state or U.S. territory. The fund may, but is not required to, invest in derivative instruments such as options and futures for speculative, hedging, or duration management purposes. The fund may also invest in exchange-traded funds (“ETFs”) as well as municipal bond closed-end funds.

The fund may invest in privately issued securities, including those that are normally purchased pursuant to Rule 144A or Regulation S promulgated under the Securities Act of 1933, as amended.

The fund is non-diversified.

Principal Risks: Risk is inherent in all investing. Many factors and risks affect the fund's performance, including those described below. The value of your investment in the fund, as well as the amount of return you receive on your investment, may fluctuate significantly day to day and over time. You may lose part or all of your investment in the fund or your investment may not perform as well as other similar investments. The following is a summary description of principal risks (in alphabetical order after certain key risks) of investing in the fund. The relative significance of the key risks below may change over time and you should review each risk factor carefully. An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You may lose money if you invest in this fund.

Market – The market prices of the fund’s securities or other assets may go up or down, sometimes rapidly or unpredictably, due to factors such as economic events, inflation, changes in interest rates, governmental actions or interventions, actions taken by the U.S. Federal Reserve or foreign central banks, market disruptions caused by tariffs, trade disputes, labor strikes, supply chain disruptions or other factors, government shutdowns, political developments, civil unrest, acts of terrorism, armed conflicts, economic

sanctions, countermeasures in response to sanctions, cybersecurity events, technological developments (such as artificial intelligence and machine learning), investor sentiment, the global and domestic effects of widespread or local health, weather or climate events, and other factors that may or may not be related to the issuer of the security or other asset. The market price of a security may also fall due to specific conditions that affect a particular sector of the securities market, a particular industry or a particular issuer or group of issuers. To the extent that securities of certain issuers behave or are perceived to behave similarly to each other, the market prices of those securities (or the market as a whole) may fall in response to a decline in the price of a particular security or group of securities. If the market prices of the fund’s securities and assets fall, the value of your investment in the fund could go down.

Economies and financial markets throughout the world are increasingly interconnected. Events or circumstances in one or more countries or regions could be highly disruptive to, and have profound impacts on, global economies or markets. As a result, whether or not the fund invests in securities of issuers located in or with significant exposure to the countries directly affected, the value and liquidity of the fund’s investments may go down.

The long-term consequences to the U.S. economy of the continued expansion of U.S. government debt and deficits are not known. Also, raising the ceiling on U.S. government debt and periodic legislation to fund the government have become increasingly politicized. Any failure to do either could lead to a default on U.S. government obligations, with unpredictable consequences for the fund’s investments, and generally for economies and markets in the U.S. and elsewhere.

Fixed-Income Securities – Risks of fixed-income securities include credit risk, interest rate risk, counterparty risk, prepayment risk, extension risk, valuation risk, and liquidity risk. The value of fixed-income securities may go up or down, sometimes rapidly and unpredictably, due to general market conditions, such as real or perceived adverse economic or political conditions, tariffs and trade disruptions, wars, social unrest, inflation, changes in interest rates, lack of liquidity in the bond markets or adverse investor sentiment. In addition, the value of a fixed-income security may decline if the issuer or other obligor of the security fails to pay principal and/or interest, otherwise defaults or has its credit rating downgraded or is perceived to be less creditworthy, or the credit quality or value of any underlying assets declines. If the value of fixed-income securities owned by the fund falls, the value of your investment will go down. The fund may lose its entire investment in the fixed-income securities of an issuer.

Municipal Securities – The municipal bond market can be susceptible to unusual volatility, particularly for lower-rated and unrated securities. Liquidity can be reduced unpredictably in response to overall economic conditions or credit tightening. Municipal issuers may be adversely affected by rising health care costs, increasing unfunded pension liabilities, and by the phasing out of federal programs providing financial support. The value of municipal securities can also be adversely affected by changes in the financial condition of one or more individual municipal issuers or insurers of municipal issuers, regulatory and political developments, tax law changes or other legislative actions, and by uncertainties and public perceptions concerning these and other factors. To the extent the fund invests significantly in a single state or in

securities the payments on which are dependent upon a single project or source of revenue, or that relate to a sector or industry, the fund will be more susceptible to associated risks and developments. Municipal issuers may be more susceptible to downgrades or defaults during recessions or similar periods of economic stress. A number of municipal issuers have defaulted on obligations, commenced insolvency proceedings, or suffered credit downgrading. Financial difficulties of municipal issuers may continue or worsen.

Investment in municipal securities of issuers in Guam, Puerto Rico, the U.S. Virgin Islands, or other U.S. territories, may have more risks than tax-exempt securities issued by other issuers due to the political, social and/or economic conditions in the particular territory.

Interest Rate –The value of fixed-income securities generally goes down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration securities. Changes in interest rates can be sudden and unpredictable and may expose the markets to significant volatility, which also may affect the liquidity of the fund’s investments and detract from fund performance. A variety of factors can impact interest rates, including central bank monetary policies and inflation rates. A general rise in interest rates may cause investors to sell fixed-income securities on a large scale, which could adversely affect the price and liquidity of fixed-income securities generally and could also result in increased redemptions from the fund. Increased redemptions could cause the fund to sell securities at inopportune times or depressed prices and result in further losses. Inflation and interest rates have been volatile and may increase in the future. Interest rate increases in the future may cause the value of fixed-income securities to decrease and, conversely, interest rate reductions may cause the value of fixed-income securities to increase.

Credit – If an issuer or other obligor (such as a party providing insurance or other credit enhancement) of a security held by the fund or a counterparty to a financial contract with the fund is unable or unwilling to meet its financial obligations, or is downgraded or perceived to be less creditworthy (whether by market participants, ratings agencies, pricing services or otherwise), or if the value of any underlying assets declines, the value of your investment will typically decline. A decline may be rapid and/or significant, particularly in certain market environments. In addition, the fund may incur costs and may be hindered or delayed in enforcing its rights against an issuer, obligor or counterparty.

High-Yield Debt Securities – High-yield debt securities, commonly referred to as “junk” bonds, are securities that are rated below “investment grade” or are of comparable quality. Changes in interest rates, the market’s perception of the issuers, the creditworthiness of the issuers and negative perceptions of the junk bond market generally may significantly affect the value of these bonds. Junk bonds are considered speculative, tend to be volatile, typically have a higher risk of default, tend to be less liquid and more difficult to value than higher grade securities, and may result in losses for the fund.

Liquidity – The fund may make investments that are illiquid or that become illiquid after purchase. Illiquid investments can be difficult to value, may trade at a discount from comparable, more liquid investments, and may be subject to wide fluctuations in value. Liquidity risk may be magnified in rising interest rate or

volatile environments. If the fund is forced to sell an illiquid investment to meet redemption requests or other cash needs, the fund may be forced to sell at a substantial loss or may not be able to sell at all. Liquidity of particular investments, or even entire asset classes, including U.S. Treasury securities, can deteriorate rapidly, particularly during times of market turmoil, and those investments may be difficult or impossible for the fund to sell. This may prevent the fund from limiting losses.

Counterparty – The fund could lose money if the counterparties to derivatives, repurchase agreements and/or other financial contracts entered into for the fund do not fulfill their contractual obligations. In addition, the fund may incur costs and may be hindered or delayed in enforcing its rights against a counterparty. These risks may be greater to the extent the fund has more contractual exposure to a counterparty.

Inflation – The value of assets or income from investment may be worth less in the future as inflation decreases the value of money. As inflation increases, the real value of the fund’s assets can decline as can the value of the fund’s distributions.

Extension – When interest rates rise, payments of fixed-income securities, including asset- and mortgage-backed securities, may occur more slowly than anticipated, causing their market prices to decline.

Prepayment or Call – Many issuers have a right to prepay their fixed-income securities. If this happens, the fund will not benefit from the rise in the market price of the securities that normally accompanies a decline in interest rates and may be forced to reinvest the prepayment proceeds in securities with lower yields.

Non-Diversification – As a “non-diversified” fund, the fund may invest a larger percentage of its assets in a smaller number of issuers than a diversified fund. Investing in a smaller number of issuers will make the fund more susceptible to the risks associated with investing in those issuers.

Valuation – Certain investments may be more difficult to value than other types of investments. The sales price the fund could receive for any particular portfolio investment may differ from the fund's valuation of the investment, particularly for securities that trade in thin or volatile markets, that are priced based upon valuations provided by third party pricing services, or that are valued using a fair value methodology. These differences may increase significantly and affect fund investments more broadly during periods of market volatility. Investors who purchase or redeem fund shares on days when the fund is holding fair-valued securities may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the fund had not fair-valued securities or had used a different valuation methodology. The fund’s ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third party service providers. Fair value pricing involves subjective judgment, which may prove to be incorrect.

Focused Investing – To the extent the fund invests a significant portion of its assets in a limited number of countries, regions, sectors, industries or market segments, in a limited number of issuers, or in issuers in related businesses or that are subject to related operating risks, the fund will be more susceptible to negative events affecting those countries, regions, sectors, industries, segments or issuers, and the value of its shares may be more volatile than if it invested more widely.

Management – The value of your investment may go down if the investment manager’s or sub-adviser's judgments and decisions are incorrect or otherwise do not produce the desired results, or if the investment strategy does not work as intended. You may also suffer losses if there are imperfections, errors or limitations in the quantitative, analytic or other tools, resources, information and data used, investment techniques applied, or the analyses employed or relied on, by the investment manager or sub-adviser, if such tools, resources, information or data are used incorrectly or otherwise do not work as intended, or if the investment manager’s or sub-adviser's investment style is out of favor or otherwise fails to produce the desired results. Any of these things could cause the fund to lose value or its results to lag relevant benchmarks or other funds with similar objectives.

Active Trading – The fund may engage in active trading of its portfolio. Active trading will increase transaction costs and could detract from performance. Active trading may be more pronounced during periods of market volatility and may generate greater amounts of short-term capital gains.

Cybersecurity – Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain access to fund assets, fund or shareholder data (including private shareholder information), or proprietary information, cause the fund or its service providers (including, but not limited to, the fund’s investment manager, any sub-adviser(s), transfer agent, distributor, custodian, fund accounting agent and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality, or prevent fund investors from purchasing, redeeming or exchanging shares, receiving distributions or receiving timely information regarding the fund or their investment in the fund. Cybersecurity incidents may render records of fund assets and transactions, shareholder ownership of fund shares, and other data integral to the functioning of the fund inaccessible, inaccurate or incomplete. The use of artificial intelligence and machine learning could exacerbate these risks. Cybersecurity incidents may result in financial losses to the fund and its shareholders, and substantial costs may be incurred in order to prevent or mitigate any future cybersecurity incidents.

Derivatives – The use of derivatives involves a variety of risks, which may be different from, or greater than, the risks associated with investing in traditional securities, such as stocks and bonds. Risks of derivatives include leverage risk, liquidity risk, interest rate risk, valuation risk, market risk, counterparty risk and credit risk. Use of derivatives can increase fund losses, increase costs, reduce opportunities for gains, increase fund volatility, and not produce the result intended. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Even a small investment in derivatives can have a disproportionate impact on the fund. Derivatives may be difficult or impossible to sell, unwind or value, and the counterparty (including, if applicable, the fund’s clearing broker, the derivatives exchange or the clearinghouse) may default on its obligations to the fund. In certain cases, the fund may incur costs and may be hindered or delayed in enforcing its rights against or closing out derivatives instruments with a counterparty, which may result in additional losses. Derivatives are also generally subject to the risks applicable to the assets, rates, indices or other indicators underlying the derivative, including market risk, credit risk, liquidity risk, management risk and valuation

risk. Also, suitable derivative transactions may not be available in all circumstances or at reasonable prices. The value of a derivative may fluctuate more or less than, or otherwise not correlate well with, the underlying assets, rates, indices or other indicators to which it relates. Using derivatives also subjects the fund to certain operational and legal risks. The fund may segregate cash or other liquid assets to cover the funding of its obligations under derivatives contracts or make margin payments when it takes positions in derivatives involving obligations to third parties. Rule 18f-4 under the 1940 Act provides a comprehensive regulatory framework for the use of derivatives by funds and imposes requirements and restrictions on funds using derivatives. Rule 18f-4 could have an adverse impact on the fund’s performance and its ability to implement its investment strategies and may increase costs related to the fund’s use of derivatives. The rule may affect the availability, liquidity or performance of derivatives, and may not effectively limit the risk of loss from derivatives.

Distressed or Defaulted Securities – Investments in defaulted securities and obligations of distressed issuers, including securities that are, or may be, involved in reorganizations or other financial restructurings, either out of court or in bankruptcy, involve substantial risks in addition to the risks of investing in high-yield debt securities. These securities are considered speculative with respect to the issuers’ continuing ability to make principal and interest payments. The fund may incur costs to protect its investment, and the fund could lose its entire investment. Distressed securities and any securities received in an exchange for such securities may be subject to restrictions on resale.

Large Shareholder – A significant portion of the fund’s shares may be owned by one or more investment vehicles or institutional investors. Transactions by these large shareholders may be disruptive to the management of the fund. For example, the fund may experience large redemptions and could be required to sell securities at a time when it may not otherwise desire to do so. Such transactions may increase the fund’s brokerage and/or other transaction costs. These transactions may also accelerate the realization of taxable capital gains to shareholders. In addition, sizeable redemptions could cause the fund’s total expenses to increase.

Leveraging – To the extent that the fund borrows or uses derivatives or other investments, such as ETFs, that have embedded leverage, your investment may be subject to heightened volatility, risk of loss and costs. Other risks also will be compounded because leverage generally magnifies the effect of a change in the value of an asset and creates a risk of loss of value on a larger pool of assets than the fund would otherwise have. Use of leverage may result in the loss of a substantial amount, and possibly all, of the fund’s assets. The fund also may have to sell assets at inopportune times to satisfy its obligations.

Privately Placed and Other Restricted Securities – Restricted securities, which include private placements of private and public companies, are subject to legal or contractual restrictions on their resale. Restricted securities may be difficult to sell at the time and price a fund prefers. Restricted securities may be difficult to value properly and may involve greater risks than securities that are not subject to restrictions on resale, both of which may result in substantial losses. An insufficient number of eligible buyers interested in purchasing restricted securities held by a fund could adversely affect the marketability of such securities and a fund might be

unable to dispose of such securities promptly or at reasonable prices, adversely affecting a fund’s overall liquidity and performance. Restricted securities may not be listed on an exchange and may have no active trading market. A fund may incur additional expense when disposing of restricted securities. Restricted securities may involve a high degree of business and financial risk and may result in substantial losses to the fund.

Repurchase Agreements – In a repurchase agreement, the fund purchases securities from a broker-dealer or a bank, called the counterparty, upon the agreement of the counterparty to repurchase the securities from the fund at a later date, and at a specified price. The securities purchased serve as the fund's collateral for the obligation of the counterparty to repurchase the securities. If the counterparty does not repurchase the securities, the fund is entitled to sell the securities, but the fund may not be able to sell them for the price at which they were purchased, thus causing a loss. If the counterparty becomes insolvent, there is some risk that the fund will not have a right to the securities, or the immediate right to sell the securities.

Taxable Investments – Although distributions of interest income from the fund’s tax-exempt securities are generally exempt from regular federal income tax, distributions from other sources, including capital gain distributions, and any gains on the sale of your shares are not. In addition, the interest on the fund’s municipal securities could become subject to regular federal income tax due to noncompliant conduct by issuers, unfavorable legislation or litigation, or adverse interpretations by regulatory authorities. You should consult a tax adviser about whether an alternative minimum tax applies to you and about state and local taxes on your fund distributions.

Underlying Exchange-Traded Funds – To the extent the fund invests its assets in underlying ETFs, its ability to achieve its investment objective will depend in part on the performance of the underlying ETFs in which it invests. Investing in underlying ETFs subjects the fund to the risks of investing in the underlying securities or assets held by those ETFs. Each of the underlying ETFs in which the fund may invest has its own investment risks, and those risks can affect the value of the underlying ETFs’ shares and therefore the value of the fund’s investments. There can be no assurance that the investment objective of any underlying ETF will be achieved. To the extent that the fund invests more of its assets in one underlying ETF than in another, the fund will have greater exposure to the risks of that underlying ETF. In addition, the fund will bear a pro rata portion of the operating expenses of the underlying ETFs in which it invests.

Performance: The bar chart and the table below provide some indication of the risks of investing in the fund. The bar chart shows how the fund’s performance has varied from year to year. The first index in the table shows how the fund’s average annual total returns for different periods compare to the returns of a broad measure of market performance. One or more secondary indices that the manager believes more closely reflect the market sectors and/or types of investments in which the fund invests also are used to measure the fund’s performance.

The bar chart does not reflect the impact of sales charges, which, if reflected, would lower the returns. The table includes deduction of applicable sales charges.

Absent any applicable fee waivers and/or expense limitations, performance would be lower.

As with all mutual funds, past performance (before and after taxes) is not a prediction of future results. Updated performance information is available on our website at www.transamerica.com/investments-fund-center or by calling 1-888-233-4339.

Annual Total Returns (calendar years ended December 31) - Class A

	Quarter Ended	Return
Best Quarter:	12/31/2023	8.16%
Worst Quarter:	6/30/2022	-9.30%

Average Annual Total Returns (periods ended December 31, 2025)

	1 Year	5 Years	10 Years	Since Inception	Inception Date
Class A					7/31/2013
Return before taxes	-0.39%	0.45%	2.39%
Return after taxes on distributions	-2.16%	-0.03%	1.92%
Return after taxes on distributions and sale of fund shares	-0.26%	0.71%	2.21%
Class C (Return before taxes only)	1.39%	0.51%	2.12%		7/31/2013
Class I (Return before taxes only)	3.15%	1.23%	2.85%		7/31/2013
Class I2 (Return before taxes only)	3.14%	1.32%	N/A	2.46%	9/30/2016
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	4.26%	1.06%	2.44%
Bloomberg High Yield Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	2.46%	2.18%	4.35%

The after-tax returns are calculated using the historic highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns may depend on the investor’s individual tax situation and may differ from those shown. After-tax returns may not be relevant if the investment is made through a tax-exempt or tax-deferred account, such as a 401(k) plan. In certain cases, returns after taxes on distributions and/or returns after taxes on distributions and sale of fund shares are higher than returns before taxes for the period shown because they reflect certain tax benefits.

After-tax returns are presented for only one class, and returns for other classes are presented before taxes only and will vary.

Management:

Investment Manager: Transamerica Asset Management, Inc. Sub-Adviser: Belle Haven Investments, L.P. Portfolio Managers:
Max Christiana	Portfolio Manager	since November 2021
Lincoln James	Portfolio Manager	since July 2026

Purchase and Sale of Fund Shares: You may purchase, exchange or redeem shares of the fund on any day the New York Stock Exchange is open for business, online or through our website at www.transamerica.com, by mail to Transamerica Fund Services, Inc., P.O. Box 219945, Kansas City, MO 64121-9945, by telephone at 1-888-233-4339, by overnight mail to Transamerica Fund Services, Inc., 801 Pennsylvania Avenue, Suite 219945, Kansas City, MO 64105-1307 or through a financial intermediary.

The minimum initial purchase for Class A and C shares is $1,000; the minimum subsequent investment is $50. The minimum initial purchase for payroll deduction and automatic investment plan is $500; the minimum subsequent investment is $50 per monthly fund account investment. The minimum investment for Class I shares is $1,000,000. There is no investment minimum for investments in Class I2 shares of the fund.

Class I2 shares of the fund are currently primarily offered for investment by certain funds of funds (also referred to as “strategic asset allocation funds”). Class I2 shares of the fund are also made available to other investors, including institutional investors such as foreign insurers, domestic insurance companies and their separate accounts, and unaffiliated funds, high net worth individuals, and eligible retirement plans whose recordkeepers or financial service firm intermediaries have entered into agreements with Transamerica Funds or its agents. Investors who received Class I2 shares in connection with the reorganization of a Transamerica Premier Fund into a Transamerica Fund may continue to invest in Class I2 shares of that Transamerica Fund, but may not open new Class I2 share accounts.

Tax Information: The fund intends to distribute income that is exempt from regular federal income tax and the AMT applicable to individuals. A portion of the fund’s distributions may be subject to taxes.

Payments to Broker-Dealers and Other Financial Intermediaries: If you purchase the fund through a broker-dealer or other financial intermediary, the fund and/or its affiliates may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

In an effort to reduce paper mailings and conserve natural resources, we encourage you to visit our website, www.transamerica.com, to set up an account and enroll in eDelivery.

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