---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-289543"
form_type: "8-K"
ticker: "SPHR"
cik: "0001795250"
company_name: "Sphere Entertainment Co."
filed_at: "2023-12-06T23:59:59+00:00"
generated_at: "2026-06-07T17:20:08.375089+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Sphere Entertainment prices $225M 3.50% convertible senior notes due 2028

## Summary
- Principal amount $225M (plus $33.75M option) at 3.50% coupon, matures Dec 1, 2028.
- Initial conversion price $35.51/share, a 25% premium to $28.41 Dec 5 close.
- Net proceeds ~$217.8M; $12.4M for capped call, remainder for Sphere growth.
- Capped call transactions entered to reduce potential dilution upon conversion.
- Offering expected to close Dec 8, 2023, with initial purchasers' option.

## SEC filing metadata
- accession: 0001193125-23-289543
- form_type: 8-K
- ticker: SPHR
- cik: 0001795250
- company_name: Sphere Entertainment Co.
- filed_at: 2023-12-06T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1795250/000119312523289543/0001193125-23-289543-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1795250/000119312523289543/d613713d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-289543
- JSON: https://secwatch.observer/filing/0001193125-23-289543.json
- Plain text: https://secwatch.observer/filing/0001193125-23-289543.txt

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