Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — PEOPLES BANCORP INC

Accession: 0000318300-26-000202

Filed: 2026-09-28

Period: 2026-09-28

CIK: 0000318300

SIC: 6022 (STATE COMMERCIAL BANKS)

Item: Other Events

Documents

8-K — pebo-20260928.htm (Primary)

EX-99 (pressreleaseannouncementof.htm)

GRAPHIC (image_0a.jpg)

GRAPHIC (pebo-20260928_g1.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: pebo-20260928.htm · Sequence: 1

pebo-20260928

0000318300FALSE00003183002026-09-282026-09-28

UNITED STATES

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

Date of Report (Date of earliest event reported): September 28, 2026

PEOPLES BANCORP INC.

(Exact name of Registrant as specified in its charter)

Ohio 000-16772 31-0987416

(State or other jurisdiction (Commission File (I.R.S. Employer

of incorporation) Number) Identification Number)

138 Putnam Street, PO Box 738

Marietta, Ohio 45750-0738

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: (740) 373-3155

Not applicable

(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(s) Name of each exchange on which registered

Common shares, without par value PEBO The Nasdaq Stock Market

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. ☐

1

Item 8.01     Other Events

On September 28, 2026, Peoples Bancorp Inc. (“Peoples”), parent company of Peoples Bank, issued a press release announcing that it has received all necessary regulatory approvals for the merger between Peoples and Citizens National Corporation (“Citizens”), with Peoples as the surviving corporation (the “Merger”), and for the merger between Peoples Bank and Citizens’ wholly owned subsidiary, Citizens Bank of Kentucky, Inc., with Peoples Bank as the surviving bank.

The Agreement and Plan of Merger dated as of April 20, 2026, by and between Peoples and Citizens, was approved by Citizens’ shareholders on August 6, 2026.

A copy of the press release is attached hereto as Exhibit 99 and is incorporated herein by reference.

SIGNATURES

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

PEOPLES BANCORP INC.

Date: September 28, 2026 By:/s/ KATIE BAILEY

Katie Bailey

Executive Vice President,

Chief Financial Officer and Treasurer

2

INDEX TO EXHIBITS

Exhibit Number Description

99

Press Release Issued by Peoples Bancorp Inc. on September 28, 2026

104 Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL document)

3

EX-99

EX-99

Filename: pressreleaseannouncementof.htm · Sequence: 2

Document

P.O. BOX 738 - MARIETTA, OHIO - 45750 NEWS RELEASE

www.peoplesbancorp.com

FOR IMMEDIATE RELEASE Contact: Tyler J. Wilcox

September 28, 2026 President and CEO

(740) 373-7737

PEOPLES BANCORP INC. RECEIVES REGULATORY APPROVALS OF ITS MERGER WITH CITIZENS NATIONAL CORPORATION

_____________________________________________________________________

MARIETTA, Ohio - Peoples Bancorp Inc. (“Peoples”) (Nasdaq: PEBO), parent company of Peoples Bank, announced today that it has received all necessary regulatory approvals for the merger between Peoples and Citizens National Corporation (“Citizens”) (OTCPK: CZNL), with Peoples as the surviving corporation (the “Merger”), and for the merger between Peoples Bank and Citizens’ wholly owned subsidiary, Citizens Bank of Kentucky, Inc.

The Agreement and Plan of Merger dated as of April 20, 2026, between Peoples and Citizens (the “Merger Agreement”), was approved by Citizens’ shareholders on August 6, 2026.

About Peoples:

Peoples is a diversified financial services holding company that makes available a complete line of banking, trust and investment, insurance, premium financing and equipment leasing solutions through its subsidiaries. Peoples has been headquartered in Marietta, Ohio, since 1902 and has an established heritage of financial stability, growth and community impact. As of June 30, 2026, Peoples had $9.5 billion in total assets, 144 locations, including 127 full-service bank branches in Ohio, Kentucky, West Virginia, Virginia, Washington D.C., and Maryland.

Peoples is a member of the Russell 3000 index of U.S. publicly-traded companies. Peoples offers services through Peoples Bank (which includes the divisions of Peoples Investment Services, Peoples Premium Finance, Peoples Life Premium Finance, and North Star Leasing), Peoples Insurance Agency, LLC, and Vantage Financial, LLC.

END OF RELEASE

GRAPHIC

GRAPHIC

Filename: image_0a.jpg · Sequence: 6

Binary file (79503 bytes)

Download image_0a.jpg

GRAPHIC

GRAPHIC

Filename: pebo-20260928_g1.jpg · Sequence: 7

Binary file (79503 bytes)

Download pebo-20260928_g1.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 9

v3.26.3

Cover

Sep. 28, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

Sep. 28, 2026

Written Communications

true

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common shares, without par value

Trading Symbol

PEBO

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

false

Entity Incorporation, State or Country Code

OH

Entity File Number

000-16772

Entity Tax Identification Number

31-0987416

Entity Address, City or Town

Marietta,

Entity Address, State or Province

OH

Entity Address, Postal Zip Code

45750-0738

Entity Address, Address Line One

138 Putnam Street, PO Box 738

City Area Code

(740)

Local Phone Number

373-3155

Entity Central Index Key

0000318300

Amendment Flag

false

Entity Registrant Name

PEOPLES BANCORP INC.

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration