---
schema_version: "secwatch.filing_event.v1"
accession: "0001273813-23-000052"
form_type: "8-K"
ticker: "AGO"
cik: "0001273813"
company_name: "ASSURED GUARANTY LTD"
filed_at: "2023-07-03T23:59:59+00:00"
generated_at: "2026-06-13T13:07:50.472177+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Assured Guaranty transitions LIBOR-linked securities to SOFR-based benchmarks per Federal LIBOR Act

## Summary
- Debentures (US Holdings, Municipal Holdings) switch to Three-Month CME Term SOFR + 0.26161% spread after June 30, 2023.
- Committed capital securities (Assured Guaranty Corp., Municipal Corp.) switch to One-Month CME Term SOFR + 0.11448% spread.
- Transition automatic under the Federal LIBOR Act and FRB Implementing Regulation; no holder action required.
- Affected CUSIPs include 04622DAA9, 31769PAB6, and eight Sutton/Woodbourne Capital Trust issues.

## SEC filing metadata
- accession: 0001273813-23-000052
- form_type: 8-K
- ticker: AGO
- cik: 0001273813
- company_name: ASSURED GUARANTY LTD
- filed_at: 2023-07-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1273813/000127381323000052/0001273813-23-000052-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1273813/000127381323000052/ago-20230630.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001273813-23-000052
- JSON: https://secwatch.observer/filing/0001273813-23-000052.json
- Plain text: https://secwatch.observer/filing/0001273813-23-000052.txt

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