Summary Prospectus by Investment Company (Form 497K)

SUMMARY PROSPECTUS

March 1, 2026

Dunham Floating Rate Bond Fund

Class A (DAFRX)

Class C (DCFRX)

Class N (DNFRX)

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. The Fund's prospectus and Statement of Additional Information, both dated March 1, 2026, are incorporated by reference into this Summary Prospectus. You can obtain these documents and other information about the Fund online at www.dunham.com/prospectus/FloatingRate. You can also obtain these documents at no cost by completing a document request form on our web-site, www.dunham.com or by calling (toll free) (888) 338-6426 or by sending an email request to [email protected], or ask any financial advisor, bank or broker-dealer that offers shares of the Fund.

Investment Objective: The Fund seeks to provide a high level of current income, with capital appreciation as a secondary goal.

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. 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 on purchases of Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. More information about these and other discounts is available from your financial intermediary and in How to Purchase Shares on page 117 of the Fund's Prospectus and in How to Buy and Sell Shares on page 89 of the Fund's Statement of Additional Information.

Shareholder Fees (fees paid directly from your investment)	Class A	Class C	Class N
Maximum Sales Charge (Load) Imposed on Purchases (as a % of offering price)	4.50%	None	None
Maximum Deferred Sales Charge (Load) (as a % of the of the original purchase price for purchases of $1 million or more)	0.75%	None	None
Maximum Sales Charge (Load) Imposed on Reinvested Dividends and other Distributions	None	None	None
Redemption Fee	None	None	None
Exchange Fee	None	None	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Management Fees(1)	0.86%	0.86%	0.86%
Distribution and/or Service (12b-1) Fees	0.25%	0.75%	0.00%
Other Expenses	0.22%	0.22%	0.22%
Acquired Fund Fees and Expenses(2)	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.34%	1.84%	1.09%

(1)

The Sub-Advisory fee is a fulcrum fee with a base or fulcrum of 28 bps (0.28%) and can range from 0.18% to 0.38%, based on the Fund's performance relative to the Morningstar LSTA U.S. Leveraged Loan 100 Index, the Fund's benchmark.

(2)

Acquired Fund Fees and Expenses are the indirect costs of investing in other investment companies. The operating expenses in this fee table will not correlate to the expense ratio in the Fund's financial highlights because the financial statements include only the direct operating expenses incurred by the Fund, not the indirect costs of investing in other investment companies.

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 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. Although your actual costs may be higher or lower, based upon these assumptions your costs would be:

Class	1 Year	3 Years	5 Years	10 Years
Class A	$580	$855	$1,151	$1,990
Class C	$187	$579	$995	$2,159
Class N	$111	$347	$601	$1,329

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 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 Fund's portfolio turnover rate was 45% of the average value of its portfolio.

Principal Investment Strategies: The Fund's Sub-Adviser seeks to achieve the Fund's investment objectives by investing, under normal market conditions, at least 80% of the Fund's assets (defined as net assets plus borrowings for investment purposes) in bonds. The Fund defines "bonds" as floating rate loans and other floating rate debt securities, including collateralized loan obligations ("CLO"s).

Floating rate loans generally represent amounts borrowed by corporations and other entities from banks and other institutional lenders. The Fund generally invests in loans that are rated below investment-grade (BB and lower, or an equivalent rating) or are not rated by a nationally recognized statistical rating organization (NRSRO), also known as "leveraged", "high-yield" or "junk" loans. The loans in which the Fund will primarily invest are senior secured obligations of their borrowers and are typically secured by some or all of borrowers' assets. Floating rate loans have interest rates that reset periodically (typically quarterly or monthly) and typically have tenors of eight years or less. The interest rates on floating rate loans may be based on a percentage above SOFR (Secured Overnight Financing Rate), a U.S. bank's prime or base rate, the overnight federal funds rate, or another rate.

A CLO is a portfolio of leveraged loans and/or high-yield bonds that are securitized and managed as a fund. The assets are typically senior secured loans, which benefit from priority of payment over other claimants in the event of an insolvency. Each CLO is structured as a series of tranches that are interest-paying bonds. The Fund generally invests in CLOs that are rated below investment-grade (BB and lower, or an equivalent rating). CLOs have interest rates that reset periodically (typically quarterly or monthly). The interest rates on floating rate loans may be based on a percentage above SOFR (Secured Overnight Financing Rate).

Additionally, the Fund will invest up to 20% of total assets in fixed-rate corporate bonds of any maturity generally rated below investment-grade (BB and lower, or an equivalent rating) or are not rated by a nationally recognized statistical rating organization (NRSRO), also known as "high-yield" or "junk" loans. These securities may be issued in reliance on Rule 144A under the Securities Act of 1933, and subject to restriction on resale.

The Fund's Sub-Adviser selects investments and seeks to reduce risk through portfolio diversification, credit analysis and attention to current developments in economic conditions. In general, the Sub-Adviser typically buys securities that provide high current income that it believes possess attractive risk/reward characteristics. The Sub-Adviser measures a security's risk/reward ratio by its yield and expected probability of default when compared to a peer group of securities with similar credit risk. The Sub-Adviser typically will sell securities when, in the Sub-Adviser's view, they no longer meet the buy criteria and when an issuer's credit fundamentals deteriorate.

The Fund may also engage in securities lending.

Principal Investment Risks: As with all mutual funds, there is the risk that you could lose money through your investment in the Fund. Although the Fund will strive to meet its investment objective, there is no assurance that it will do so. Many factors affect the Fund's net asset value and performance.

Senior Bank Loans Risk - Senior loans are subject to the risk that a court could subordinate a senior loan, which typically holds the most senior position in the issuer's capital structure, to presently existing or future indebtedness or take other action detrimental to the holders of senior loans. Senior loans settle on a delayed

basis, potentially leading to the sale proceeds of such loans not being available to meet redemptions for a substantial time period after the sale of the senior loans. The market prices of floating rate loans are generally less sensitive to interest rate changes than are the market prices for securities with fixed interest rates. Certain senior loans may not be considered "securities," and purchasers, such as the Fund, therefore may not be entitled to rely on the protections of federal securities laws, including anti-fraud provisions.

CLO Risk - Negative economic trends nationally as well as in specific geographic areas of the United States could result in an increase in loan defaults and delinquencies. There is a material possibility that economic activity will be volatile or will slow significantly, and the CLO performance will likely be significantly and negatively impacted by such conditions. Such effects may include an inability for Obligors to obtain refinancing of their debt obligations. A decreased ability of Obligors to obtain refinancing may cause a deterioration in loan performance generally and for CLOs. It is not possible to determine whether or when such trends will improve or worsen in the future. CLOs may include underlying securities, which are investments in foreign countries. These factors could detract from CLO's performance.

Lower-Rated Securities Risk - Securities rated below investment-grade, sometimes called "high-yield" or "junk" bonds, are speculative investments that generally have more credit risk than higher-rated securities. Companies issuing high-yield fixed-income securities are not as strong financially as those issuing securities with higher credit ratings and are more likely to encounter financial difficulties. Lower rated issuers are more likely to default and their securities could become worthless.

Floating Interest Rates Risk - Certain of the Fund's investments, payment obligations and financing terms may be based on floating interest rates ("Reference Rates"). The elimination of a Reference Rate or any other changes or reforms to the determination or supervision of Reference Rates could have an adverse impact on the market for, or value of, any securities or payments linked to those Reference Rates.

Changing Fixed Income Market Conditions Risk - During periods of sustained rising rates, fixed income risks will be amplified. If the U.S. Federal Reserve's Federal Open Market Committee ("FOMC") raises the federal funds interest rate target, interest rates across the U.S. financial system may rise. Rising rates tend to decrease liquidity, increase trading costs, and increase volatility, all of which make portfolio management more difficult and costly to the Fund and its shareholders.

Credit Risk - Issuers of debt securities may suffer from a reduced ability to repay their interest and principal obligations. They may even default on interest and/or principal payments due to the Fund. An increase in credit risk or a default will cause the value of Fund debt securities to decline. Issuers with lower credit quality are more susceptible to economic or industry downturns and are more likely to default.

Foreign Investing Risk - Investments in foreign countries are subject to currency risk and country-specific risks such as political, diplomatic, regional conflicts, terrorism, war, social and economic instability, and policies that have the effect of decreasing the value of foreign securities. Foreign countries may be subject to different trading settlement practices, less government supervision, less publicly available information, limited trading markets and greater volatility than U.S. investments.

Call or Redemption Risk - If interest rates decline, issuers of debt securities may exercise redemption or call provisions. This may force the Fund to reinvest redemption or call proceeds in securities with lower yields, which may reduce Fund performance.

Interest Rate Risk - In general, the price of a debt security falls when interest rates rise. Debt securities have varying levels of sensitivity to changes in interest rates. Securities with longer maturities may be more sensitive to interest rate changes.

Natural Disaster/Epidemic Risk - Natural or environmental disasters, such as earthquakes, fires, floods, hurricanes, tsunamis, and other severe weather-related phenomena generally, and widespread disease and illness, including pandemics and epidemics (such as the novel coronavirus), have been and can be highly disruptive to economies and markets.

Liquidity Risk - Some securities may have few market-makers and low trading volume, which tend to increase transaction costs and may make it impossible for the Fund to dispose of a security position at all or at a price which represents current or fair market value.

Management Risk - The Fund is subject to management risk because it is an actively managed investment portfolio. The Sub-Adviser will apply its investment techniques and risk analyses in making investment

decisions for the Fund, but there is no guarantee that its decisions will produce the intended result. The successful use of hedging and risk management techniques may be adversely affected by imperfect correlation between movements in the price of the hedging vehicles and the securities being hedged.

Securities Lending Risk - The risk of securities lending is that the financial institution that borrows securities from the Fund could go bankrupt or otherwise default on its commitment under the securities lending agreement and the Fund might not be able to recover the loaned securities or their value.

Performance: The following bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the performance of Class N Shares of the Fund from year to year and by showing how the Fund's Class A, Class C and Class N average annual returns compare with those of a broad measure of market performance. The Class A sales charge is reflected in the average annual total return table. Past performance (before and after taxes) does not necessarily indicate how a Fund will perform in the future. Updated performance information is available at no cost by visiting www.dunham.com or by calling toll free (888) 3DUNHAM (338-6426).

Class N Shares Annual Total Return for Years Ended December 31

During the periods shown in the bar chart, the highest return for a quarter was 6.98% (quarter ended June 30, 2020) and the lowest return for a quarter was -12.29% (quarter ended March 31, 2020).

Dunham Floating Rate Bond Fund

AVERAGE ANNUAL TOTAL RETURN

For the periods ended December 31, 2025	1 Year	5 Years	10 Years
Class N Shares
return before taxes	5.30%	5.57%	4.49%
return after taxes on distributions	2.18%	2.63%	2.18%
return after taxes on distributions and sale of Fund shares	3.10%	2.96%	2.41%
Class C Shares
return before taxes	4.64%	4.78%	3.72%
Class A Shares
return before taxes	0.28%	4.35%	3.76%
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)	7.30%	-0.36%	2.01%
Morningstar LSTA U.S. Leveraged Loan 100 Index (reflects no deduction for fees, expenses, or taxes)	7.35%	6.32%	5.81%
Morningstar Bank Loan Category (return before taxes)*	6.06%	6.29%	5.76%

*

The Morningstar Bank Loan Category is generally representative of mutual funds that primarily invest in floating-rate bank loans instead of bonds. These bank loans generally offer interest payments that typically float above a common short-term benchmark such as the Interbank Offered Rate, or IBOR, or the Secured Overnight Financing Rate (SOFR).

After-tax returns are estimated and are based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after-tax returns depend on an individual investor's tax situation and are likely to differ from those shown. If you own shares of the Fund in a tax-deferred account, such as an individual retirement account or a 401(k) plan, this information is not applicable to your investment, because such accounts are only subject to taxes upon distribution. After tax returns for Class C and Class A shares, which are not shown, will vary from those of Class N shares.

Investment Adviser: Dunham & Associates Investment Counsel, Inc. (the "Adviser").

Sub-Adviser: PineBridge Investments LLC ("PineBridge" or the "Sub-Adviser").

Sub-Adviser Portfolio Managers: Steven Oh, CFA, Laila Kollmorgen, CFA, and Jeremy Burton, CFA, have primary responsibility for the day-to-day management of the Fund since October 2021. Mr. Oh, Managing Director, Portfolio Manager, and Global Head of Credit and Fixed Income, joined the Sub-Adviser in 2000; Ms. Kollmorgen, CFA, Managing Director and CLO Portfolio Manager, joined the Sub-Adviser in 2015; Mr. Burton, CFA, Managing Director and Portfolio Manager, joined the Sub-Adviser in 2009.

Purchase and Sale of Fund Shares

You may purchase and redeem shares of a Fund on any day that the New York Stock Exchange is open for trading. For Class A shares and Class C shares, the initial minimum investment amount in a Fund for regular accounts is $5,000, and for tax-deferred accounts and certain tax efficient accounts is $2,000. The minimum subsequent investment is $100. For Class N shares, the minimum initial investment per Fund is $100,000 for taxable accounts and $50,000 for tax-deferred accounts. There is no minimum subsequent investment amount for Class N shares.

Purchases and redemptions may be made by mailing an application or redemption request to the addresses indicated below, by calling toll free (888) 3DUNHAM (338-6426) or by visiting the Fund's website www.dunham.com. You also may purchase and redeem shares through a financial intermediary.

via Regular Mail		via Overnight Mail
Dunham Funds		Dunham Funds
c/o Gemini Fund Services, LLC		c/o Gemini Fund Services, LLC
P.O. Box 46707		225 Pictoria Dr, Suite 450
Cincinnati, OH 45246		Cincinnati, OH 45246

Tax Information

Dividends and capital gain distributions you receive from a Fund, whether you reinvest your distributions in additional Fund shares or receive them in cash, are taxable to you at either ordinary income or capital gains tax rates unless you are investing through a tax-deferred plan such as an IRA or 401(k) plan. However, these dividend and capital gain distributions may be taxable upon their eventual withdrawal from tax-deferred plans.

Financial Intermediary Compensation

If you purchase a Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies 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.