Simmons First National : Acquisitions of Landmark Community Bank and Triumph Bancshares, Inc.

Nasdaq: SFNC

Enhancing our position and scale in key growth markets

Acquisitions of Landmark Community Bank and Triumph Bancshares, Inc.

June 7, 2021

MemphisNashville

Forward-Looking Statements

Certain statements contained in this presentation may not be based on historical facts and should be considered "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may be identified by reference to a future period(s) or by the use of forward-looking terminology, such as "anticipate," "believe," "budget," "contemplate," "continue," "estimate," "expect," "foresee," "intend," "indicate," "target," "plan," positions," "prospects," "project," "predict," or "potential," by future conditional verbs such as "could," "may," "might," "should," "will," or "would," or by variations of such words or by similar expressions. These forward-looking statements include, without limitation, statements relating to the impact Simmons First National Corporation ("Company") expects the proposed transactions ("Transactions") with Landmark Community Bank ("Landmark") and Triumph Bancshares, Inc. ("Triumph") to have on the combined entities' operations, financial condition and financial results (including, among other things, pro forma information), and the Company's expectations about its ability to successfully integrate the combined businesses and the amount of cost savings and other benefits the Company expects to realize as a result of the Transactions. The forward-looking statements may also include, without limitation, those relating to the Company's future growth, revenue, expenses, assets, asset quality, profitability, earnings, accretion, customer service, investment in digital channels, critical accounting policies, net interest margin, non-interest revenue, market conditions related to and the impact of the Company's stock repurchase program, consumer behavior and liquidity, the adequacy of the allowance for credit losses, the impacts of the COVID- 19 pandemic and the ability of the Company to manage the impacts of the COVID-19 pandemic, the impacts of the Company's and its customers' participation in the Paycheck Protection Program (the "PPP"), the expected performance of COVID-19 loan modifications, income tax deductions, credit quality, the level of credit losses from lending commitments, net interest revenue, interest rate sensitivity, loan loss experience, liquidity, the Company's expectations regarding actions by the Federal Home Loan Bank ("FHLB") including with respect to the FHLB's option to terminate FHLB Owns the Option advances, capital resources, market risk, plans for investments in securities, effect of future litigation, including the results of the overdraft fee litigation against the Company, acquisition strategy, legal and regulatory limitations and compliance and competition.

These forward-looking statements involve risks and uncertainties, and may not be realized due to a variety of factors, including, without limitation: changes in the Company's operating, acquisition, or expansion strategy; the effects of future economic conditions (including unemployment levels and slowdowns in economic growth), governmental monetary and fiscal policies, as well as legislative and regulatory changes, including in response to the COVID-19 pandemic; changes in interest rates; possible adverse rulings, judgements, settlements, and other outcomes of pending or future litigation, including litigation or actions arising from the Company's participation in and administration of programs related to the COVID-19 pandemic (including, among others, the PPP); the ability to obtain regulatory approvals and meet other closing conditions to the Transactions; delay in closing the Transactions; difficulties and delays in integrating the Triumph and Landmark businesses or fully realizing cost savings and other benefits of the Transactions; business disruption following the Transactions; and other relevant risk factors, which may be detailed from time to time in the Company's press releases and filings with the U.S. Securities and Exchange Commission (the "SEC"). Many of these factors are beyond the Company's ability to predict or control, and actual results could differ materially from those in the forward-looking statements due to these factors and others. In addition, as a result of these and other factors, the Company's past financial performance should not be relied upon as an indication of future performance.

The Company believes the assumptions and expectations that underlie or are reflected in any forward-looking statements, expressed or implied, in this presentation are reasonable, based on information available to the Company on the date of this presentation. However, given the described uncertainties and risks, the Company cannot guarantee its future performance or results of operations or whether the Company's future performance will differ materially from the performance reflected in or implied by its forward-looking statements, and you should not place undue reliance on these forward-looking statements. All forward-looking statements, expressed or implied, included in this presentation are expressly qualified in their entirety by the cautionary statements contained or referred to herein. Any forward-looking statement speaks only as of the date of this presentation, and none of the Company, Triumph or Landmark undertakes any obligation to update or revise any forward- looking statements, whether as a result of new information, future events or otherwise.

Annualized, pro forma, projected and estimated numbers are used for illustrative purposes only, are not forecasts and may not reflect actual results.

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Important Additional Information and Where to Find It

This presentation does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval with respect to either of the proposed Transactions. No offer of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act of 1933, and no offer to sell or solicitation of an offer to buy shall be made in any jurisdiction in which such offer, solicitation or sale would be unlawful.

In connection with the Transactions, the Company will file with the SEC a Registration Statement on Form S-4 (the "Registration Statement") that will include proxy statements of each of Triumph and Landmark and a prospectus of the Company (the "Joint Proxy Statement/Prospectus"), and the Company may file with the SEC other relevant documents concerning the Transactions. The definitive Joint Proxy Statement/Prospectus will be mailed to shareholders of Triumph and Landmark.

SHAREHOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/PROSPECTUS REGARDING THE TRANSACTIONS CAREFULLY AND IN ITS ENTIRETY WHEN IT BECOMES AVAILABLE AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC BY THE COMPANY, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE TRANSACTIONS.

Free copies of the Joint Proxy Statement/Prospectus, as well as other filings containing information about the Company, may be obtained at the SEC's Internet site (http://www.sec.gov), when they are filed by the Company. You will also be able to obtain these documents, when they are filed, free of charge, from the Company at www.simmonsbank.com under the heading "Investor Relations." Copies of the Joint Proxy Statement/Prospectus can also be obtained, when it becomes available, free of charge, by directing a request to Simmons First National Corporation, 501 Main Street, Pine Bluff, Arkansas 71601, Attention: Ed Bilek, Director of Investor Relations, Email: [e-mail] or [e-mail], Telephone: [phone], to Triumph at Triumph Bancshares, Inc., 5699 Poplar Avenue, Memphis, TN 38119, Attention: Will Chase, President, Telephone: [phone], or to Landmark at Landmark Community Bank, 1015 West Poplar Avenue, Collierville, TN 38017, Attention: Jake Farrell, Chairman, Telephone: [phone].

Participants in the Solicitation

The Company, Triumph, Landmark and certain of their directors, executive officers and employees may be deemed to be participants in the solicitation of proxies from the shareholders of Triumph and Landmark in connection with the proposed Transactions. Information about the Company's directors and executive officers is available in its proxy statement for its 2021 annual meeting of shareholders, which was filed with the SEC on April 15, 2021. Information regarding all of the persons who may, under the rules of the SEC, be deemed participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the Joint Proxy Statement/Prospectus regarding the proposed Transactions and other relevant materials to be filed with the SEC when they become available. Free copies of these documents may be obtained as described in the preceding paragraph.

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Strategic rationale for transactions

Strategic

Value

Financially Attractive

Low Risk,

In-Market

Transactions

• Enhances scale and expands footprint in TN (will be ranked #9 in TN deposit market share)(1)
• Expands presence in key growth markets within our existing footprint
• • Expected to be #6 in deposit market share in Memphis(1)
  • Expected to be #15 in deposit market share in Nashville(1)
• Strong funding bases from core deposits
• Enables asset growth in existing markets with ability to drive operating leverage
• Approximately +7.5% EPS accretion estimated in first full year
• Expected to be slightly accretive to Tangible Book Value Per Share
• Estimated Internal Rate of Return greater than 20%
• Strategic and effective deployment of capital
• Disciplined and proven acquiror with 11 successful integrations since 2013
• Extensive due diligence performed
• Same (Landmark) or familiar (Triumph) IT vendor utilized for core operating systems
• In-marketpartners that add to successful existing teams in Memphis and Nashville

1. Pro Forma deposit market share data as of 6/30/20, Source: S&P Global Market Intelligence

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Overview of Landmark Community Bank

Company Overview

Branch Footprint

• Privately-heldcommunity bank founded in 1999
• Headquartered in Collierville, TN, an affluent suburb of Memphis
• 8 Branches including 5 in Memphis MSA and 3 in Nashville MSA
• "It's All About the Experience" company tagline

Financial Highlights(1)

Chairman, President & CEO	James "Jake" Farrell
Chief Financial Officer	Charles "Buddy" Dickey
Total Assets ($mm)	$1,007
Total Loans (Excl. HFS) ($mm)	797
Total Deposits ($mm)	840
Loans / Deposits	95%
Return on Average Assets	1.13%
Return on Average Common Equity	11.43%
Net Interest Margin	3.31%
Efficiency Ratio	57.11%
NPLs / Total Loans	0.83%
NCOs / Average Loans	0.06%
Allowance / Loans	0.78%

Loan and Deposit Breakdown(1)

Consumer weighted	High quality deposit portfolio
loan portfolio

	C& I	Consumer & other	Jumbo Time Deposits
	10%	2%	Demand Deposits
Non Owner				18%	28%
Occupied
10%
Owner
Occupied	$797 mm	Retail Time	$840 mm
7%
Multifamily			Deposits
		19%
2%
C&D
7%
		1-4 Family			MM & Savings
Loan Mix		62%
			35%
Commercial: 36%	Loan to deposit ratio: 95%
Consumer: 64%

Source: S&P Global Market Intelligence and Company documents
(1) Data for the three months ended, or at, March 31, 2021	5