Citigroup updates debt indenture agreements

Citigroup Inc. filed a current report to document several updates to its long‑standing debt indenture arrangements.

Rhea-AI Filing Summary

Citigroup Inc. filed a current report to document several updates to its long‑standing debt indenture arrangements. On January 9, 2026, the company entered into multiple supplemental indentures with The Bank of New York Mellon, acting as trustee, linked to base indentures originally dated 1987, 1996, 2004 and 2005, as well as a 2016 indenture involving Citigroup Global Markets Holdings Inc.

The report also includes an exhibit listing Citigroup securities registered under Section 12(b) of the Securities Exchange Act of 1934 as of the filing date. These actions are presented through filed exhibits and reflect technical updates to existing financing documents rather than a new financing transaction.

8-K Event Classification

Item 9.01 — Financial Statements and Exhibits

1 item

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Citigroup (C) report in this 8-K filing?

Citigroup Inc. reports that it has entered into several supplemental indentures dated January 9, 2026 with The Bank of New York Mellon as trustee, tied to existing base indentures from 1987, 1996, 2004, 2005 and 2016.

Which supplemental indentures are included for Citigroup (C)?

The filing lists an Eighth Supplemental Indenture to a 1987 indenture, a Fifth to a 1996 indenture, a Twelfth to a 2004 indenture, a Third to a 2005 indenture, and a Fourth supplemental indenture to a 2016 indenture involving Citigroup Global Markets Holdings Inc.

Who serves as trustee under Citigroup’s updated indentures?

The Bank of New York Mellon serves as trustee under each of the supplemental indentures referenced in the exhibits to this report.

Does this Citigroup (C) 8-K describe specific new securities being issued?

The excerpted content refers to supplemental indentures and includes an exhibit listing securities registered under Section 12(b), but it does not describe specific new securities issuances in detail.

What other exhibit is included besides the supplemental indentures for Citigroup (C)?

The 8-K includes an exhibit describing Citigroup Inc. securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934 as of the filing date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Understanding 8-K Material Events →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 01/12/2026 - 04:18 PM EST Learn about SEC filing dates

0000831001 2026-01-09 2026-01-09 0000831001 us-gaap:CommonStockMember 2026-01-09 2026-01-09 0000831001 c:CitigroupCapitalIIIMember 2026-01-09 2026-01-09 0000831001 c:CitigroupCapitalXIIIMember 2026-01-09 2026-01-09 0000831001 c:SeriesNMediumTermSeniorNotesDueApr2028Member 2026-01-09 2026-01-09 0000831001 c:SeriesNMediumTermSeniorNotesDueSept2026Member 2026-01-09 2026-01-09 0000831001 c:SeriesNMediumTermSeniorNotesDueSept2028Member 2026-01-09 2026-01-09 0000831001 c:SeriesNMediumTermSeniorNotesDueOct2028Member 2026-01-09 2026-01-09 0000831001 c:SeriesNMediumTermSeniorNotesDueMar2029Member 2026-01-09 2026-01-09

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) January 12, 2026 (January 9, 2026)

Citigroup Inc.

(Exact name of registrant as specified in its charter)

Delaware		1-9924		52-1568099
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)
388 Greenwich, New York, New York				10013
(Address of principal executive offices)				(Zip Code)

(212) 559-1000

(Registrant’s telephone number, including area code)

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 Securities Exchange Act of 1934 formatted in Inline XBRL: See Exhibit 99.1.

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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. ☐

CITIGROUP INC.

Current Report on Form 8-K

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

Exhibit No.		Description
4.1		Eighth Supplemental Indenture dated as of January 9, 2026 between Citigroup Inc. and The Bank of New York Mellon, as trustee, to Indenture dated as of March 15, 1987
4.2		Fifth Supplemental Indenture dated as of January 9, 2026 between Citigroup Inc. and The Bank of New York Mellon, as trustee, to Indenture dated as of October 7, 1996
4.3		Twelfth Supplemental Indenture dated as of January 9, 2026 between Citigroup Inc. and The Bank of New York Mellon, as trustee, to Indenture dated as of July 23, 2004
4.4		Third Supplemental Indenture dated as of January 9, 2026 between Citigroup Inc. and The Bank of New York Mellon, as trustee, to Indenture dated as of June 1, 2005
4.5		Fourth Supplemental Indenture dated as of January 9, 2026 between Citigroup Global Markets Holdings Inc., Citigroup Inc. and The Bank of New York Mellon, as trustee, to Indenture dated as of March 8, 2016
99.1		Citigroup Inc. securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934 as of the filing date
104		The cover page of this Current Report on Form 8-K, formatted in Inline XBRL

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.

Dated January 12, 2026				CITIGROUP INC.
						/s/ Karen Wang
				By:		Karen Wang
						Assistant Secretary