---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-26-000111"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2026-06-09T20:58:44+00:00"
generated_at: "2026-06-09T21:00:43.979054+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Arch Capital issues $2.0B in senior notes: $600M 5.250% & $1.4B 5.950%

## Summary
- Completed public offering of $600M 5.250% senior notes due 2036 and $1.4B 5.950% senior notes due 2056.
- Notes are senior unsecured obligations ranking equally with other senior unsecured debt of the issuer.
- Interest payable semi-annually on June 15 and December 15, beginning December 15, 2026.
- Notes may be redeemed at issuer's option subject to make-whole or tax-event redemption provisions.
- Issued under shelf registration; not guaranteed by subsidiaries; proceeds not specified in filing.

## SEC filing metadata
- accession: 0000947484-26-000111
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2026-06-09T20:58:44+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748426000111/0000947484-26-000111-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748426000111/acgl-20260609.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-26-000111
- JSON: https://secwatch.observer/filing/0000947484-26-000111.json
- Plain text: https://secwatch.observer/filing/0000947484-26-000111.txt

## Key facts
- Debt Financings
  ARCH CAPITAL GROUP LTD. incurred senior notes of $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 with The Bank of New York Mellon at 5.250% maturing June 15, 2036.
  - Instrument: senior notes
  - Principal: $600,000,000 aggregate principal amount of 5.250% senior notes due 2036
  - Counterparty: The Bank of New York Mellon
  - Rate: 5.250%
  - Maturity: June 15, 2036
  - Event: incurrence
  source text: The Notes were issued pursuant to an indenture (the “Base Indenture”), dated as of May 4, 2004, by and between the Issuer and The Bank of New York Mellon (the “Trustee”), as successor trustee to JPMorgan Chase Bank, as supplemented by a Third Supplemental Indenture, dated as of June 9, 2026, by and between the Issuer and the Trustee (the “Third Supplemental Indenture”, together with the Base Indenture, the “Indenture”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748426000111/0000947484-26-000111-index.htm
- Debt Financings
  ARCH CAPITAL GROUP LTD. incurred senior notes of $1,400,000,000 aggregate principal amount of 5.950% senior notes due 2056 with The Bank of New York Mellon at 5.950% maturing June 15, 2056.
  - Instrument: senior notes
  - Principal: $1,400,000,000 aggregate principal amount of 5.950% senior notes due 2056
  - Counterparty: The Bank of New York Mellon
  - Rate: 5.950%
  - Maturity: June 15, 2056
  - Event: incurrence
  source text: The Notes were issued pursuant to an indenture (the “Base Indenture”), dated as of May 4, 2004, by and between the Issuer and The Bank of New York Mellon (the “Trustee”), as successor trustee to JPMorgan Chase Bank, as supplemented by a Third Supplemental Indenture, dated as of June 9, 2026, by and between the Issuer and the Trustee (the “Third Supplemental Indenture”, together with the Base Indenture, the “Indenture”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748426000111/0000947484-26-000111-index.htm
- Material Agreements
  ARCH CAPITAL GROUP LTD. entered into Third Supplemental Indenture with The Bank of New York Mellon valued at $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 and $1,400,000,000 aggregate (effective 2026-06-09).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: The Bank of New York Mellon
  - Value: $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 and $1,400,000,000 aggregate
  - Effective: 2026-06-09
  source text: On June 9, 2026, Arch Capital Group Ltd. (the “Issuer”), completed the public offering of (i) $600,000,000 aggregate principal amount of 5.250% senior notes due 2036 (the “2036 Notes”) and (ii) $1,400,000,000 aggregate principal amount of 5.950% senior notes due 2056 (the “2056 Notes” and, together with the 2036 Notes, the “Notes”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748426000111/0000947484-26-000111-index.htm

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