---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-288826"
form_type: "8-K"
ticker: "SPHR"
cik: "0001795250"
company_name: "Sphere Entertainment Co."
filed_at: "2023-12-05T23:59:59+00:00"
generated_at: "2026-06-07T18:10:31.663905+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Sphere Entertainment announces $225M note offering; London Sphere impairment $80M; Q2 positive AOI outlook

## Summary
- Offers $225M convertible senior notes due 2028 to qualified institutional buyers in private placement.
- Segment to report positive adjusted operating income Q2 Dec 2023; MSGN $1.2B debt, $829M due Oct 2024, refinancing risk.
- Through Nov 30: U2 concerts $30.7M revenue (280k tickets); Postcard from Earth $44.5M revenue (450k attendance).
- London Sphere planning denied by Mayor; expects $80M non-cash impairment charge in Q2 ending Dec 2023.
- CFO search in advanced stages; expects to announce new CFO in near term.

## SEC filing metadata
- accession: 0001193125-23-288826
- form_type: 8-K
- ticker: SPHR
- cik: 0001795250
- company_name: Sphere Entertainment Co.
- filed_at: 2023-12-05T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1795250/000119312523288826/0001193125-23-288826-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1795250/000119312523288826/d581023d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-288826
- JSON: https://secwatch.observer/filing/0001193125-23-288826.json
- Plain text: https://secwatch.observer/filing/0001193125-23-288826.txt

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