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 ~~The~~Report ~~Securities~~(Date ~~Exchange~~of ~~Act~~earliest ofevent ~~1934~~reported): March 6, 2026

Date of Report (Date of earliest event reported): November 18, 2025

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 ~~TradingSymbol~~Trading Symbol(s) Name of each ~~exchangeon~~exchange on which registered Common Stock TY 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).


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.		☐

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 ~~November~~March 186, ~~2025~~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 ~~November~~March 186, ~~2025~~2026 for Tri-Continental Corporation.

Exhibit Index

ExhibitNo.
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: ~~November~~March 186, ~~2025~~2026

TRI-CONTINENTAL CORPORATION By: /s/ Joseph D’Alessandro Joseph D’Alessandro Vice President and Assistant Secretary

Filing Compare · TRI-CONTINENTAL Corp