SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

~~November~~ 26December 1, 2025

Date of Report

(Date of Earliest Event Reported)

Synovus Financial Corp.

(Exact Name of Registrant as Specified in its Charter)

Georgia			1001-10312			58-1134883
(State of Incorporation)			(Commission File Number)			(IRS Employer Identification No.)

33 W. 14th Street,, Columbus, Georgia 31901

(Address of principal executive offices) (Zip Code)

(706) 641-6500

(Registrant’s telephone number, including area code)

________________________________________________

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $1.00 Par Value	SNV	New York Stock Exchange
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D	SNV-PrD	New York Stock Exchange
Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E	SNV-PrE	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐


Item 7.01			Regulation FD Disclosure

As previously disclosed, on July 24, 2025, Synovus Financial Corp. (“Synovus”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) by and among Synovus, Pinnacle Financial Partners, Inc. (“Pinnacle”) and Steel Newco Inc., a newly formed Georgia corporation jointly owned by Synovus and Pinnacle (“Newco”). Pursuant to the Merger Agreement, and upon the terms and subject to the conditions ~~set forth~~ therein, ~~(i)~~ Synovus and Pinnacle will each simultaneously merge with and into Newco (such mergers, collectively, the “Merger”), with Newco continuing as the surviving corporation in the Merger and named Pinnacle Financial Partners, Inc., (ii) immediately following the effective time of the Merger (the “Effective Time”), Pinnacle Bank, a Tennessee-chartered bank (“Pinnacle Bank”), will become a member bank of the Federal Reserve System (the “FRS Membership”), and (iii) immediately following the effectiveness of the FRS Membership, Synovus Bank, a Georgia-chartered bank (“Synovus Bank”), will merge with and into Pinnacle Bank (the “Bank Merger”, and together with the Merger, the “Transaction”), with Pinnacle Bank continuing as the surviving entity in the Bank Merger.

OnIn ~~November~~order ~~25,~~to ~~2025,~~provide ~~Synovus~~an ~~and~~update ~~Pinnacle~~to ~~issued~~the asupplemental ~~joint~~information ~~investor~~previously ~~presentation~~furnished ~~providing~~by ~~supplemental~~Synovus ~~information~~as ~~regarding~~Exhibit ~~the Transaction~~99.2 Aunder ~~copy~~Item 7.01 of ~~the~~Form ~~joint~~8-K ~~investor~~dated ~~presentation~~July 24, 2025, Synovus is ~~attached~~furnishing as Exhibit 99.1 to this ~~Current~~report ~~Report~~ on Form 8-K ~~and~~excerpts isof ~~incorporated~~an ~~herein~~investor bypresentation, ~~reference~~dated as of December 1, 2025, which provides additional supplemental information giving effect to the Merger as if it had occurred on September 30, 2025.

The information contained in Item 7.01 of this report, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. The information contained in Item 7.01 of this report, including Exhibit 99.1, shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, whether made before, on, or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing.


Item 8.01			Other Events

OnIn ~~November~~order 25to provide an update to the unaudited pro forma condensed combined financial information included in the registration statement on Form S-4 (File No. 333-289866) filed by Newco with the Securities and Exchange Commission on August 26, 2025, amended on September 29, 2025 and declared effective on September 30, 2025, Synovus is filing as Exhibit 99.2 to this Current Report on Form 8-K, the unaudited pro forma condensed combined financial statements of Synovus and Pinnacle, ~~issued~~consisting aof ~~joint~~the ~~press~~unaudited ~~release~~pro ~~announcing~~forma ~~that~~condensed combined income statements of Synovus and Pinnacle ~~have~~for ~~received~~the ~~approvals~~nine ~~from~~months ~~the~~ended ~~Board~~September of30, ~~Governors~~2025 ofand for the ~~Federal~~year ~~Reserve~~ended ~~System~~December to31, ~~complete~~2024, giving effect to the Merger as if it had occurred on January 1, 2024, and the ~~FRS~~unaudited ~~Membership~~pro forma condensed combined balance sheet of Synovus and ~~the~~Pinnacle ~~Bank~~as of September 30, 2025, giving effect to the Merger as if it had occurred on September 30, 2025.

OnAll ~~November~~the ~~25,~~pro ~~2025~~forma financial statements and ~~November~~other ~~26,~~pro ~~2025,~~forma ~~Synovus~~information ~~and~~included ~~Pinnacle~~in ~~also~~this ~~received~~Current ~~approvals~~Report ~~from~~on ~~the~~Form ~~Tennessee~~8-K ~~Department~~has been prepared on the basis of ~~Financial~~certain ~~Institutions~~assumptions and ~~the~~estimates ~~Georgia~~and ~~Department~~is ofsubject ~~Banking~~to other uncertainties and ~~Finance,~~does ~~respectively,~~not ~~which~~purport ~~constitute~~to ~~the~~reflect ~~remaining~~what ~~bank~~Newco’s ~~regulatory~~actual ~~approvals~~results ~~required~~of tooperations ~~complete~~or financial condition or this pro forma information would have been had the ~~Transaction. The~~Merger ~~closing~~been ofconsummated on the ~~Transaction~~dates isassumed ~~expected~~for topurposes ~~occur~~of onsuch ~~January~~pro 1,forma ~~2026,~~financial ~~subject~~statements and information or to ~~the~~be ~~satisfaction~~indicative of Newco’s, Synovus’ or ~~waiver~~Pinnacle’s financial condition, results of ~~the~~operations ~~remaining~~or ~~customary~~metrics ~~closing~~as ~~conditions~~of ~~set~~or ~~forth~~for inany ~~the~~future ~~Merger~~date ~~Agreement~~or period.

AThis ~~copy~~Current Report on Form 8-K does not modify or update the consolidated financial statements of Synovus included in Synovus’s Annual Report on Form 10-K for the ~~joint~~year ~~press~~ended ~~release~~December is31, ~~attached~~2024, asor ~~Exhibit~~Synovus’ ~~99.2 hereto~~Quarterly ~~and~~Report ison ~~incorporated~~Form ~~herein~~10-Q byfor ~~reference~~the quarter ended September 30, 2025, nor does it reflect any subsequent information or events.

Item 9.01	Financial Statements and Exhibits
	(d)	Exhibits
	Exhibit No.	Description
	99.1	~~Joint~~Excerpts ~~Informational Presentation~~ of ~~Synovus~~Investor ~~Financial~~Presentation ~~Corp. and Pinnacle Financial Partners, Inc.,~~ dated ~~November~~December 251, 2025.
	99.2	~~Joint~~Unaudited ~~Press~~Pro ~~Release~~Forma ofCondensed ~~Synovus~~Combined Financial ~~Corp~~Information. ~~and Pinnacle Financial Partners, Inc., dated November 25, 2025.~~
	104	Cover Page Interactive Data File (formatted as Inline XBRL).

Forward- Looking Statements

This communication contains statements that constitute “forward-looking statements” within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical fact are forward-looking statements. These forward-looking statements include, but are not limited to, statements about the benefits of the proposed transaction between Synovus Financial Corp. (“Synovus”) and Pinnacle Financial Partners, Inc. (“Pinnacle”), including future financial and operating results (including the anticipated impact of the proposed transaction on Synovus’ and Pinnacle’s respective earnings and tangible book value), statements related to the expected timing of the completion of the proposed transaction, the combined company’s plans, objectives, expectations and intentions, and other statements that are not historical facts. You can identify these forward-looking statements through the use of words such as “believes,” “anticipates,” “expects,” “may,” “will,” “assumes,” “should,” “predicts,” “could,” “would,” “intends,” “targets,” “estimates,” “projects,” “plans,” “potential” and other similar words and expressions of the future or otherwise regarding the outlook for Synovus’, Pinnacle’s or ~~the~~ combined company’s future businesses and financial performance and/or the performance of the banking industry and economy in general.

Prospective investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve known and unknown risks and uncertainties which may cause the actual results, performance or achievements of Synovus, Pinnacle or the combined company to be materially different from the future results, performance or achievements expressed or implied by such forward-looking statements. Forward-looking statements are based on the information known to, and current beliefs and expectations of, Synovus or Pinnacle and are subject to significant risks and uncertainties. Actual results may differ materially from those contemplated by such forward-looking statements. A number of factors could cause actual results to differ materially from those contemplated by the forward-looking statements in this communication. Many of these factors are beyond Synovus’, Pinnacle’s or the combined company’s ability to control or predict. These factors include, among others, (1) the risk that the cost savings and synergies from the proposed transaction may not be fully realized or may take longer than anticipated to be realized, (2) disruption to Synovus’ business and to Pinnacle’s business as a result of the announcement and pendency of the proposed transaction, (3) the risk that the integration of Pinnacle’s and Synovus’ respective businesses and operations will be materially delayed or will be more costly or difficult than expected, including as a result of unexpected factors or events, (4) the amount of the costs, fees, expenses and charges related to the transaction, (5) ~~reputational risk and~~ the ~~reaction~~ability ofby each ~~company’s~~of ~~customers,~~Synovus ~~suppliers,~~and ~~employees~~Pinnacle orto ~~other~~obtain ~~business~~required ~~partners~~governmental toapprovals of the proposed transaction, ~~(6)~~on the ~~failure~~timeline ofexpected, or at all, and the ~~closing~~risk ~~conditions~~that such approvals may result in the ~~merger~~imposition ~~agreement~~of toconditions bethat ~~satisfied,~~could oradversely ~~any~~affect ~~unexpected~~the ~~delay~~combined incompany after the closing of the proposed transaction or adversely affect the ~~occurrence~~expected benefits of ~~any~~the ~~event~~proposed transaction, ~~change~~(6) reputational risk and the reaction of each company’s customers, suppliers, employees or other ~~circumstances~~business ~~that~~partners ~~could~~to the proposed transaction, (7) the failure of the closing conditions

in the merger agreement to be satisfied, or any unexpected delay in closing the proposed transaction or the occurrence of any event, change or other circumstances that could give rise to the termination of the merger agreement, (78) the dilution caused by the issuance of shares of the combined company’s common stock in the transaction, (89) the possibility that the proposed transaction may be more expensive to complete than anticipated, including as a result of unexpected factors or events, (910) risks related to management and oversight of the expanded business and operations of the combined company following the closing of the proposed transaction, (1011) the possibility the combined company is subject to additional regulatory requirements as a result of the proposed transaction or expansion of the combined company’s business operations following the proposed transaction, (1112) the outcome of any legal or regulatory proceedings or governmental inquiries or investigations that may be currently pending or later instituted against Synovus, Pinnacle or the combined company and (1213) general competitive, economic, political and market conditions and other factors that may affect future results of Synovus and Pinnacle including changes in asset quality and credit risk; the inability to sustain revenue and earnings growth; changes in interest rates and capital markets; inflation; customer borrowing, repayment, investment and deposit practices; the impact, extent and timing of technological changes; and capital management activities. Additional factors which could affect future results of Synovus and Pinnacle can be found in Synovus’ or Pinnacle’s filings with the Securities and Exchange Commission (the “SEC”), including in Synovus’ Annual Report on Form 10-K for the year ended December 31, 2024, under the captions “Forward-Looking Statements” and “Risk Factors,” and Synovus’ Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and Pinnacle’s Annual Report on Form 10-K for the year ended December 31, 2024, under the captions “Forward-Looking Statements” and “Risk Factors,” and in Pinnacle’s Quarterly Reports on Form 10-Q and Current Reports on Form 8-K. Undue reliance should not be placed on any forward-looking statements, which are based on current expectations and speak only as of the date that they are made. Synovus and Pinnacle do not assume any obligation to update any forward-looking statements as a result of new information, future developments or otherwise, except as otherwise may be required by law.

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			SYNOVUS FINANCIAL CORP.
Date: November 26, 2025			By: /s/ Allan E. Kamensky
Date: December 1, 2025			By: /s/ Allan E. Kamensky
			Name: Allan E. Kamensky
			Title: Executive Vice President and General Counsel

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