---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-314169"
form_type: "8-K"
ticker: "C"
cik: "0000831001"
company_name: "CITIGROUP INC"
filed_at: "2025-12-10T23:59:59+00:00"
generated_at: "2026-05-16T13:43:20.525365+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Citigroup issues new Series HH preferred stock with 6.625% fixed rate reset

## Summary
- Filed Certificate of Designations for 6.625% Fixed Rate Reset Noncumulative Preferred Stock, Series HH, with Delaware Secretary of State.
- Depositary Shares each representing a 1/25 interest in a share of Series HH preferred stock to be offered.
- Underwriting agreement dated December 3, 2025, for the Series HH offering.
- Terms: 6.625% fixed rate reset, noncumulative, perpetual preferred stock.

## SEC filing metadata
- accession: 0001193125-25-314169
- form_type: 8-K
- ticker: C
- cik: 0000831001
- company_name: CITIGROUP INC
- filed_at: 2025-12-10T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/831001/000119312525314169/0001193125-25-314169-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/831001/000119312525314169/d49770d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-314169
- JSON: https://secwatch.observer/filing/0001193125-25-314169.json
- Plain text: https://secwatch.observer/filing/0001193125-25-314169.txt

## Key facts
- Governance Changes
  CITIGROUP INC: Established a new series of preferred stock, Series HH, amending the Restated Certificate of Incorporation (effective 2025-12-09).
  - Change: charter amendment
  - Effective: 2025-12-09
  source text: On December 9, 2025, Citigroup Inc. filed a Certificate of Designations with the Secretary of State of the State of Delaware, establishing the designations, preferences, powers and rights of the shares of a new series of Citigroup preferred stock, 6.625% Fixed Rate Reset Noncumulative Preferred Stock, Series HH. The Certificate of Designations amended Citigroup’s Restated Certificate of Incorporation, as amended, and was effective immediately on filing.
  evidence_url: https://www.sec.gov/Archives/edgar/data/831001/000119312525314169/0001193125-25-314169-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.