Summary Prospectus by Investment Company (Form 497K)

Catalyst Buffered Shield Fund

Class A: SHIEX Class C: SHINX CLASS I: SHIIX

summary PROSPECTUS

NOVEMBER 1, 2025

Before you invest, you may want to review the Fund's complete prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus and other information about the Fund at https://catalystmf.com/literature-and-forms/. You can also get this information at no cost by calling 1-866-447-4228, emailing [email protected] or by asking any financial intermediary that offers shares of the Fund. The Fund's prospectus and statement of additional information, both dated November 1, 2025 are incorporated by reference into this summary prospectus and may be obtained, free of charge, at the website or phone number noted above.

FUND SUMMARY: CATALYST BUFFERED SHIELD FUND

Investment Objective: The Fund's investment objective is long-term capital appreciation.

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 table and Example 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 professional and is included in the section of the Fund's prospectus entitled How to Buy Shares on page 127 and "Appendix A - Intermediary-Specific Sales Charge Reductions and Waivers" and in the sections of the Fund's Statement of Additional Information entitled Reduction of Up-Front Sales Charge on Class A Shares on page 65 and Waiver of Up-Front Sales Charge on Class A Shares on page 66.

Shareholder Fees (fees paid directly from your investment)	Class A	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a % of offering price)	5.75%	None	None
Maximum Deferred Sales Charge (Load) (as a % of the original purchase price)	1.00%1	None	None
Maximum Sales Charge (Load) Imposed on Reinvested Dividends and other Distributions	None	None	None
Redemption 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	1.25%	1.25%	1.25%
Distribution and/or Service (12b-1) Fees	0.25%	1.00%	None
Other Expenses	0.89%	0.89%	0.89%
Interest/Dividend Expense	0.05%	0.05%	0.05%
Remaining Other Expenses	0.84%	0.84%	0.84%
Acquired Fund Fees and Expenses2	0.07%	0.07%	0.07%
Total Annual Fund Operating Expenses	2.46%	3.21%	2.21%
Fee Waiver and/or Expense Reimbursement 3	(0.86)%	(0.86)%	(0.86)%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	1.60%	2.35%	1.35%

¹ The 1.00% maximum deferred sales charge may be assessed in the case of investments at or above the $1 million breakpoint (where you do not pay an initial sales charge) on shares redeemed within two years of purchase.

² Acquired Fund Fees and Expenses are the indirect costs of investing in other investment companies. The total annual fund 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.

³ The Fund's advisor, Catalyst Capital Advisors LLC (the "Advisor"), has contractually agreed to waive advisory fees and/or reimburse expenses of the Fund to the extent necessary to limit total annual fund operating expenses (excluding brokerage costs; borrowing costs, such as (a) interest, and (b) dividends on securities sold short; taxes; underlying fund expenses, and extraordinary expenses, such as regulatory inquiry and litigation expenses) at 1.48%, 2.23% and 1.23% for Class A shares, Class C shares and Class I shares, respectively, through October 31, 2026. This agreement may be terminated by the Trust's Board of Trustees only on 60 days' written notice to the Advisor, by the Advisor with the consent of the Board of Trustees, or upon the termination of the advisory agreement between the Trust and the Advisor. Fee waivers and expense reimbursements are subject to possible recoupment by the advisor from the Fund in future years on a rolling three-year basis (within the three years after the fees have been waived or reimbursed) so long as such recoupment does not cause the Fund's expense ratio (after the repayment is taken into account) to exceed both: (i) the Fund's expense limitation at the time such expenses were waived, and (ii) the Fund's current expense limitation at the time of recoupment.

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 hold or redeem all of your shares at the end of those periods. The Example only accounts for the Fund's expense limitation through its expiration period, October 31, 2026, and then depicts the Fund's total annual expenses thereafter. 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 on these assumptions your costs would be:

YEAR	Class A	Class C	Class I
1	$728	$238	$137
3	$1,220	$909	$608
5	$1,737	$1,604	$1,106
10	$3,149	$3,454	$2,477

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. The portfolio turnover rate of the Fund for the fiscal year ended June 30, 2025 was 0% of the value of its portfolio.

Principal Investment Strategies:

Under normal market conditions, the Fund seeks to achieve its investment objective by investing in put and call options on exchange traded funds ("ETFs") that track the S&P 500 Index ("Index ETFs") and in fixed income securities. At time of purchase, the equity options component's target allocation is between 0.5% and 7.5%, while the fixed income component's target allocation is between 92.5% and 99.5%. The equity option component is designed to provide 100% notional exposure to the S&P 500 Index (the "Index"), with a level of hedge on the downside and participation on the upside to a certain cap. Using a combination of put and call options on Index ETFs, the Fund's investment sub-advisor, Exceed Advisory LLC (the "Sub-Advisor"), initially executes the equity options strategy by seeking to provide an investment vehicle that limits losses to 12.5% when the Index declines in value, and to participate in increases in the Index up to approximately 15%. As the Index increases in value, the strategy seeks to increase the level of hedge on the downside and the cap on the upside by rebalancing or rolling the call and put strike levels in a given maturity to higher strike levels. By rebalancing, the strategy seeks to optimize risk / reward by lowering downside risk (through buying higher strike puts) and increasing upside potential (through selling higher strike calls), thus converting a hard cap to a soft cap. There may be times that the Sub-Advisor determines not to implement the Fund's hedging strategy.

The fixed income component is designed to return a yield that is used to assist in purchasing the equity option component. The equity options strategy is intended to provide investment returns that are correlated with, but less volatile than, those of the Index. Although the option strategy includes a leverage component, the strategy also limits the Fund's participation in Index gains.

Equity Options Component

The equity options strategy consists of exchange traded equity options. Options selected for the equity component generally have a duration of approximately one year.

Put Options Sub-Component

Put options allow the purchaser, for a premium, to "put" a security to the seller of the option at a strike price. Put options are selected for the Fund to target participation in the Index if the Index decreases down to a maximum floor of 12.5% by selecting a short put whose strike price equals the current value of the Index and a long put whose strike price is below the current value of the Index. The Fund's purchases and sales of put options result in "put spreads," which are intended to allow the Fund to mitigate losses in the equity options component when the Index declines by more than 12.5% during the terms of the put spreads. The put spreads do not guard the Fund against Index losses in the equity options component of less than 12.5%, and only seeks to guard against such losses during the terms of the put spreads. All other losses in the equity options component will be borne by the Fund and shareholders. There is no guarantee that the put spreads will limit the losses in the equity options component to 12.5%. Put options do not protect against losses in the fixed income component of the Fund's strategy.

Call Options Sub-Component

Call options allow the purchaser, for a premium, to "call" away a security from the seller of the option at a particular price, called the "strike price." Normally, a buyer calls away a security at the strike price if the security's market price is greater than the strike price. The call options are selected to target participation in the Index if the Index increases up to a maximum cap by selecting a long call whose strike price equals the current value of the Index and a short call whose strike price is above the current value of the Index. In this way, the Fund seeks to participate with the market up to the maximum cap. The Fund's purchases and sales of call options result in "call spreads," which are intended to allow the Fund to participate in increases in the Index up to approximately 15% during the terms of the call spreads.

The objective of the call options is to provide market participation up to the maximum cap while the objective of the put options is to provide a floor to negative performance and thereby limit exposure in a materially bearish environment. However, there is no guarantee that put and call options will limit the Fund's losses in the equity options component.

Fixed Income Component

The fixed income component of the Fund's portfolio consists of domestic short to medium term, investment grade, fixed coupon, senior or subordinated corporate bonds, and government securities with a typical maturity of 5 years or less, or ETFs that invest primarily in such securities. The Fund typically invests primarily in corporate debt. Fixed income securities are selected by identifying the highest yielding securities among a peer group with similar credit

quality and maturity, while also ensuring portfolio diversification in terms of credit rating and industry.

Although the Fund's strategy seeks to provide protection for large losses in the equity portion of the portfolio, an investor can still lose money on the fixed income portion such that the total loss in the portfolio as a whole could be more than the targeted 12.5%.

The Fund actively trades its portfolio investments, which may lead to higher transaction costs that may affect the Fund's performance.

Principal Risks of Investing in the Fund:

As with any mutual fund, there is no guarantee that the Fund will achieve its objective. Investment markets are unpredictable and there will be certain market conditions where the Fund will not meet its investment objective and will lose money. The Fund's net asset value and returns will vary and you could lose money on your investment in the Fund, and those losses could be significant.

The following summarizes the principal risks of investing in the Fund. These risks could adversely affect the net asset value, total return, and value of the Fund and your investment.

Call Options Risk. As the seller (writer) of a covered call option, the Fund assumes the risk of a decline in the market price of the underlying security below the purchase price of the underlying security less the premium received, and gives up the opportunity for gain on the underlying security above the exercise option price. The Fund continues to bear the risk that it will lose money if the value of the security falls below the strike price. As the buyer of a call option, the Fund assumes the risk that the market price of the underlying security will not increase above the strike price plus the premiums paid, so the Fund bears the risk that it will lose the premium paid for the option.

Counterparty Risk. A counterparty to a financial instrument held by the Fund, or by a special purpose or structured vehicle invested in by the Fund, may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.

Credit Risk. An issuer of a security may fail to pay principal and interest in a timely manner, reducing the Fund's total return. The price of a fixed income security tends to drop if the rating of the underlying issuer drops and the probability of the failure to pay principal and interest increases.

Derivatives Risk. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) the risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: changing supply and demand relationships;

government programs and policies; national and international political and economic events; changes in interest rates; inflation and deflation; and changes in supply and demand relationships. If the derivative is linked to the performance of an index, it will be subject to the risks associated with changes in that index.

Equity Options Strategy Risk. Although the equity options strategy is intended to manage volatility, it may not protect against market declines, may limit the Fund's participation in market gains (particularly during periods when market values are increasing or market volatility is high), may increase portfolio transaction costs (which could result in losses or reduction in gains), may not be successful, and is subject to the Sub-Advisor's ability to correctly analyze and implement the Fund's equity options strategy.

Equity Security Risk. Equity securities are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. Investor perceptions are based on various and unpredictable factors, including expectations regarding government, economic, monetary and fiscal policies; inflation and interest rates; economic expansion or contraction; and global or regional political, economic and banking crises.

Exchange Traded Funds ("ETFs") Risk. Like an open-end investment company (mutual fund), the value of an ETF can fluctuate based on the prices of the securities owned by the ETF, and ETFs are also subject to the following additional risks: (i) the ETF's market price may be less than its net asset value; (ii) an active market for the ETF may not develop; and (iii) market trading in the ETF may be halted under certain circumstances.

Fixed-Income Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Federal Reserve policy changes may expose fixed-income and related markets to heightened volatility and may reduce liquidity for certain Fund investments, which could cause the value of the Fund's investments and share price to decline. Other risk factors include credit risk (the debtor may default) and prepayment risk (the debtor may pay its obligation early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund's share price and total return to be reduced and fluctuate more than other types of investments.

Hedging Risk. Hedging is a strategy in which the Fund uses a derivative to offset the risks associated with other Fund holdings. There can be no assurance that the Fund's hedging strategy will reduce risk or that hedging transactions will be either available or cost effective.

Interest Rate Risk. Overall bond prices, including the prices of securities held by the Fund, may decline over short or even long periods of time due to rising interest rates. Bonds with longer maturities tend to be more sensitive to interest rates than bonds with shorter maturities. Rising interest rates pose a heightened risk to the Fund's longer-term fixed income securities.

Index Risk. If the derivative, such as a futures contract, in which the Fund invests is linked to the performance of an index, it will be subject to the risks associated with changes in that index.

Large Capitalization Company Risk. Large-capitalization companies may be less able than smaller capitalization companies to adapt to changing market conditions. Large-capitalization companies may be more mature and subject to more limited growth potential compared with smaller capitalization companies. During different market cycles, the performance of large capitalization companies has trailed the overall performance of the broader securities markets.

Leverage Risk. Using leverage can magnify the Fund's potential for gain or loss and; therefore, amplify the effects of market volatility on the Fund's share price. Using derivatives can create leverage, which can amplify the effects of market volatility on the Fund's share price and make the Fund's returns more volatile.

Liquidity Risk. Liquidity risk exists when particular investments are difficult to sell. Although most of the Fund's securities must be liquid at the time of investment, the Fund may purchase illiquid investments and securities may become illiquid after purchase by the Fund, particularly during periods of market turmoil. When the Fund holds illiquid investments, the Fund's investments may be harder to value, especially in changing markets, and if the Fund is forced to sell these investments to meet redemptions or for other cash needs, the Fund may suffer a loss. In addition, when there is illiquidity in the market for certain securities, the Fund, due to limitations on investments in illiquid investments, may be unable to achieve its desired level of exposure to a certain sector.

Managed Volatility Risk. Techniques used by the Sub-Advisor to manage the volatility of the Fund's investments carry the risks that such techniques may not protect against market declines. The techniques may also limit the Fund's participation in market gains, particularly during periods where market values are increasing but market volatility is high. Further, such techniques may increase portfolio transaction costs, which could result in losses or reduced gains. They also may not be successful, as the techniques are subject to the Sub-Advisor's ability to correctly analyze and implement the volatility management techniques in a timely manner.

Management Risk. The portfolio manager's judgments about the attractiveness, value and potential appreciation of particular stocks, options, or other securities or derivatives in which the Fund invests or sells short may prove to be incorrect, and there is no guarantee that the portfolio manager's judgment will produce the desired results.

Market Risk. Overall stock market risks may also affect the value of the Fund. Factors such as domestic economic growth and market conditions, interest rate levels, tariffs and trade wars and political events affect the securities markets.

Options Market Risk. Markets for options may not always operate on a fair and orderly basis. At times, prices for options may not represent fair market value and prices may be subject to manipulation, which may be extreme under some circumstances. The dysfunction and manipulation of volatility and options markets may make it difficult for the fund to effectively implement its investment strategy and achieve its objectives, and could potentially lead to significant losses.

Options Risk. There are risks associated with the Fund's options strategy. This strategy involves the sale and purchase of call and put options. A seller (writer) of a call option will lose money if the underlying security on which the option was written increases in value to a level above the strike price of the sold option plus the premium received. Since there is no limit on how high a value of an entity can go, there is material risk in being short a call with no offsetting position. A seller (writer) of a put option will lose money if the underlying security on which the option was written decreases in value to a level below the strike price of the sold option less the premium received. The seller of a put option is limited to losing the difference between the strike price less the premium received and $0, reflecting a full loss of all value for the underlying security. The Fund's losses are potentially unlimited in a written put transaction and potentially unlimited in an unhedged written call transaction. A seller of an option can be liquidated if the value of the underlying security advances enough in the case of a call option, or declines enough in the case of a put option, given there are no offsetting positions or enough capital to offset the unrealized losses. In a liquidation event, one should expect material realized losses.

A buyer of a call or put option risk the loss of the entire premium invested in the option. If the underlying security is not above the strike price at maturity of a call, or not below the strike price at maturity of a put, the option will expire worthless.

Additionally, purchased options may decline in value due to changes in price of the underlying reference instrument, passage of time, and changes in volatility. Generally, options may not be an effective hedge because they may have imperfect correlation to the value of the Fund's portfolio securities. Further, the underlying reference instrument on which the option is based may have imperfect correlation to the value of the Fund's portfolio securities. Option premiums are treated as short-term capital gains and, when distributed to shareholders, are usually taxable as ordinary income, which may have a higher tax rate than long-term capital gains for shareholders holding Fund shares in a taxable account. Options are also subject to leverage and volatility risk, liquidity risk, tracking risk (the risk that an option's returns will deviate from a benchmark), and sub-strategy risk (the risk that hedging sub-strategies will not perform as expected).

Option premiums are treated as short-term capital gains and, when distributed to shareholders, are usually taxable as ordinary income, which may have a higher tax rate than long-term capital gains for shareholders holding Fund shares in a taxable account. Options are also subject to leverage and volatility risk, liquidity risk, tracking risk, and sub-strategy risk, among other risks.

Short Position Risk. The Fund will incur a loss as a result of a short position if the price of the short position instrument increases in value between the date of the short position sale and the date on which the Fund purchases an offsetting position. Short positions may be considered speculative transactions and involve special risks, including greater reliance on the ability to accurately anticipate the future value of a security or instrument. The Fund's losses are potentially unlimited in a short position transaction.

Turnover Risk. The Fund may have a high turnover of the securities held in its portfolio. Increased portfolio turnover causes the Fund to incur higher brokerage costs, which may adversely affect the Fund's performance and may produce increased taxable distributions.

Underlying Fund Risk. Because the Fund may invest in other investment companies, the value of your investment will fluctuate in response to the performance of the underlying funds. Investing in underlying funds involves certain additional expenses and certain tax results that would not arise if you invested directly in the underlying funds. By investing in underlying funds, you will bear not only your proportionate share of the Fund's expenses (including operating costs and investment advisory and administrative fees), but also, indirectly, similar expenses and charges of the underlying funds, including any contingent deferred sales charges and redemption charges. Finally, you may incur increased tax liabilities by investing in the Fund rather than directly in the underlying funds. Each underlying fund is subject to specific risks, depending on the nature of its investment strategy, including liquidity risk and default risk on the assets held by the underlying fund.

U.S. Government Obligations Risk. The Fund may invest in U.S. government or agency obligations. Securities issued or guaranteed by federal agencies and U.S. government sponsored entities may or may not be backed by the full faith and credit of the U.S. government.

Performance:

The bar chart and accompanying table shown below provide an indication of the risks of investing in the Fund. The bar chart shows performance of the Fund's Class I shares for each full calendar year since the Fund's inception. Although Class A and Class C shares have similar annual returns to Class I shares because the classes are invested in the same portfolio of securities, the returns for Class A shares and Class C shares are different than Class I shares because Class A and Class C shares have different expenses than Class I shares. The performance table shows how the average annual total returns for Class I, Class A and Class C shares compare over time with those of a broad-based market index.

The Fund acquired all of the assets and liabilities of Exceed Defined Shield Index Fund, a series of Forum Funds, (the "Predecessor Fund") in a tax-free reorganization on September 1, 2017 (the "Reorganization"). In connection with this Reorganization, shares of the Predecessor Fund's Investor Shares and Institutional Shares were exchanged for Class A shares and Class I shares of the Fund, respectively. The Predecessor Fund had an investment objective and strategies that were, in all material respects, the same as those of the Fund, and was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the Fund. The performance information set forth below for periods prior to September 1, 2017 reflects the historical performance of the Predecessor Fund shares. Neither Investor Class nor Institutional Class shares of the Predecessor Fund charged a sales load and, therefore, the impact of a sales load is not reflected in the Fund's performance for the periods prior to September 1, 2017. Additionally, because the 1 Year Average Annual Total Returns assume investment in the Fund on December 31, 2016, which was prior to the Reorganization, the impact of a sales load is not reflected in the performance information provided.

How the Fund has performed in the past (before and after taxes) is not necessarily an indication of how it will perform in the future.

Updated performance information is available at no cost by calling 1-866-447-4228 and on the Fund's website at www.CatalystMF.com.

Catalyst Buffered Shield Fund Annual Total Returns

For the Years Ended December 31

During the period shown in the bar chart, the highest return for a quarter was 9.68%(quarter ended March 31, 2019),and the lowest return for a quarter was (11.45)% (quarter ended December 31, 2018). The Fund's Class I year-to-date return as of September 30, 2025 was 8.61%.

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

Class I	1 Year	5 Year	Since inception (4/14/2015)
Return Before Taxes	13.58%	5.36%	5.88%
Return After Taxes on Distributions	12.27%	3.36%	3.53%
Return After Taxes on Distributions and Sale of Fund Shares	8.05%	3.27%	3.48%
Class A
Return Before Taxes	6.90%	3.88%	4.97%
	1 Year	5 Year	Since inception (9/5/2017)
Class C
Return Before Taxes	12.45%	4.33%	5.30%
S&P 500 Index (reflects no deduction for fees, expenses or taxes)	25.02%	14.53%	13.24% (Since 4/14/2015) 14.60% (Since 9/5/2017)

After-tax returns for the Fund are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold Fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are only shown for Class I shares. After-tax returns for other share classes will vary.

Advisor: Catalyst Capital Advisors LLC is the Fund's investment advisor.

Sub-Advisor: Exceed Advisory LLC, is the Fund's investment sub-advisor.

Portfolio Manager: Joseph Halpern, Portfolio Manager of the Sub-Advisor, is primarily responsible for the day-to-day management of the Fund. Mr. Halpern has served the Fund in this capacity since the Fund's inception in 2015.

Purchase and Sale of Fund Shares: The minimum initial investment in each share class of the Fund is $2,500 for a regular account, $2,500 for tax-deferred plans, such as IRA or 401(k) accounts, and $100 for an automatic investment plan account. The minimum subsequent investment in each share class of the Fund is $50. You may purchase and redeem shares of the Fund on any day that the New York Stock Exchange is open. Redemption requests may be made in writing, by telephone or through a financial intermediary, to the Fund or the Transfer Agent, and will be paid by check or wire transfer.

Tax Information: Dividends and capital gain distributions you receive from the 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. If you are investing through a tax-deferred plan, distributions may be taxable upon withdrawal from the plan.

Payments to Broker-Dealers and Other Financial Intermediaries: If you purchase the 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.