Form 8-K

8-K — TRI-CONTINENTAL Corp

Accession: 0001193125-26-234091

Filed: 2026-05-21

Period: 2026-05-21

CIK: 0000099614

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — d129610d8k.htm (Primary)

EX-99.1 (d129610dex991.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: d129610d8k.htm · Sequence: 1

8-K

TRI-CONTINENTAL Corp false 0000099614 0000099614 2026-05-21 2026-05-21 0000099614 us-gaap:CommonStockMember 2026-05-21 2026-05-21 0000099614 us-gaap:PreferredStockMember 2026-05-21 2026-05-21

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): May 21, 2026

Tri-Continental Corporation

(Exact name of registrant as specified in its charter)

Maryland

811-00266

13-5441850

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

290 Congress Street, Boston, Massachusetts

02210

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: 800-345-6611

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 (see General Instruction A.2. below):

☐

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 Stock

The New York Stock Exchange

Preferred Stock

TYPR

The 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. ☐

SECTION 7 — REGULATION FD

Item 7.01 Regulation FD Disclosure.

Registrant is furnishing as Exhibit 99.1 the attached Press Release dated May 21, 2026 for Tri-Continental Corporation.

SECTION 9 — FINANCIAL STATEMENTS AND EXHIBITS

Item 9.01 Financial Statements and Exhibits.

Registrant is furnishing as Exhibit 99.1 the attached Press Release dated May 21, 2026 for Tri-Continental Corporation.

Exhibit Index

Exhibit No.

99.1

Press Release

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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.

Date: May 21, 2026

TRI-CONTINENTAL CORPORATION

By:

/s/ Joseph D’Alessandro

Joseph D’Alessandro

Vice President and Assistant Secretary

EX-99.1

Filename: d129610dex991.htm · Sequence: 2

EX-99.1

Stockholder contact:

800-345-6611, option 3

Media contact:

Meghan Shields

meghan.shields@columbiathreadneedle.com

TRI-CONTINENTAL CORPORATION

DECLARES SECOND QUARTER DISTRIBUTION

BOSTON, MA, May 21, 2026 - Tri-Continental Corporation (the “Corporation”) (NYSE: TY) today

declared a second quarter ordinary income distribution of $0.2852 per share of Common Stock and $0.6250 per share of Preferred Stock. In addition, the Corporation declared a total capital gain distribution of $0.5442 per share of Common Stock. This

capital gain distribution consists of short-term capital gains of $0.1032 and long-term capital gains of $0.4410. Distributions on Common Stock will be paid on June 25, 2026 to Common Stockholders of record on June 16, 2026, and dividends

on Preferred Stock will be paid on July 1, 2026 to Preferred Stockholders of record on June 16, 2026. The ex-dividend date for both the Common Stock and the Preferred Stock is June 16, 2026. The

$0.2852 per share ordinary income distribution and the $0.5442 per share capital gain distribution on the Common Stock is in accordance with the Corporation’s distribution policy. The capital gain distribution, being a special distribution,

will be paid in stock except that any stockholder of record as of June 16, 2026, may elect to receive such distribution as follows: 75% in shares and 25% in cash; 50% in shares and 50% in cash; or 100% in cash.

The Corporation has paid dividends on its common stock for 82 consecutive years. The Corporation’s investment manager is Columbia Management Investment

Advisers, LLC, a wholly-owned subsidiary of Ameriprise Financial, Inc.

The Corporation’s distributions on common stock will vary. The

Corporation’s current distributions (as estimated by the Corporation based on current information) are from the earnings and profits of the Corporation. No amount of the Corporation’s current distribution consists of a return of capital

(i.e., a return of some or all of your original investment in the Corporation).

The net asset value of the Corporation’s common shares may not

always correspond to the market price of such shares. Shares of many closed-end funds frequently trade at a discount from their net asset value. An investment in the Corporation is subject to stock market

risk, which is the risk that market prices for the Corporation’s common shares may decline over short or long periods, adversely affecting the value of an investment in the Corporation.

Securities selected for the Corporation using quantitative methods may perform differently from the market as a whole, and there can be no assurance that this

methodology will enable it to achieve its objective. The Corporation’s portfolio

investments are subject to market risk, which may affect a single issuer, sector of the economy, industry or the market as a whole. Fixed-income investments, including convertible securities, are

subject to credit risk, interest rate risk, and prepayment and extension risk. These risks may be more pronounced for longer-term securities and high-yield securities (“junk bonds”). In general, bond prices rise when interest rates fall

and vice versa. Convertible securities are subject to both the risks of their security type prior to conversion as well as their security type after conversion. The Corporation’s use of leverage, including through its preferred stock, exposes

it to greater risks due to unanticipated market movements, which may magnify losses and increase volatility of returns.

You should consider the

investment objectives, risks, charges, and expenses of the Corporation carefully before investing. A prospectus containing information about the Corporation (including its investment objectives, risks, charges, expenses, and other information) may

be obtained by contacting your financial advisor or the Corporation’s transfer agent at 800-345-6611 or visiting

columbiathreadneedleus.com. The prospectus can also be found on the Securities and Exchange Commission’s EDGAR database. The prospectus should be read carefully before investing in the Corporation. There is no guarantee that the

Corporation’s investment goals/objectives will be met or that distributions will be made, and you could lose money.

Tri-Continental Corporation is managed by Columbia Management Investment Advisers, LLC.

Columbia Threadneedle

Investments® is the global brand name of the Columbia and Threadneedle group of companies.

Past performance does not guarantee future results.

Investment products are not insured by the FDIC, NCUA or any federal agency, are not deposits or obligations of, or guaranteed by any financial

institution, and involve investment risks including possible loss of principal and fluctuation in value.

columbiathreadneedleus.com

Adtrax # CTNA7989543.5-

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

Document and Entity Information

May 21, 2026

Document And Entity Information [Line Items]

Entity Registrant Name

TRI-CONTINENTAL Corp

Amendment Flag

false

Entity Central Index Key

0000099614

Document Type

8-K

Document Period End Date

May 21, 2026

Entity Incorporation State Country Code

Entity File Number

811-00266

Entity Tax Identification Number

13-5441850

Entity Address, Address Line One

290 Congress Street

Entity Address, City or Town

Boston

Entity Address, State or Province

Entity Address, Postal Zip Code

02210

City Area Code

800

Local Phone Number

345-6611

Written Communications

false

Soliciting Material

false

Pre Commencement Tender Offer

false

Pre Commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Common Stock [Member]

Document And Entity Information [Line Items]

Security 12b Title

Common Stock

Trading Symbol

Security Exchange Name

NYSE

Preferred Stock [Member]

Document And Entity Information [Line Items]

Security 12b Title

Preferred Stock

Trading Symbol

TYPR

Security Exchange Name

NYSE

- 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:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- 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:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- 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:

Period Type:

duration

- References

No definition available.

+ Details

Name:

ty_DocumentAndEntityInformationLineItems

Namespace Prefix:

ty_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Details

Name:

us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type:

- Details

Name:

us-gaap_StatementClassOfStockAxis=us-gaap_PreferredStockMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type: