---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-092447"
form_type: "8-K"
ticker: "SIRI"
cik: "0000908937"
company_name: "SIRIUS XM HOLDINGS INC."
filed_at: "2024-08-23T23:59:59+00:00"
generated_at: "2026-05-31T07:56:37.272077+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Liberty Media stockholders approve SiriusXM redemptive split-off; merger closes Sept 9

## Summary
- Series A/B Liberty SiriusXM stockholders approved redemption; split-off effective 4:05 PM ET Sept 9, 2024.
- Merger to complete at 6:00 PM ET Sept 9; SiriusXM becomes wholly-owned subsidiary of SplitCo (New SiriusXM).
- New SiriusXM common stock to trade on Nasdaq under 'SIRI' starting Sept 10, 2024.

## SEC filing metadata
- accession: 0001104659-24-092447
- form_type: 8-K
- ticker: SIRI
- cik: 0000908937
- company_name: SIRIUS XM HOLDINGS INC.
- filed_at: 2024-08-23T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/908937/000110465924092447/0001104659-24-092447-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/908937/000110465924092447/tm2422393d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-092447
- JSON: https://secwatch.observer/filing/0001104659-24-092447.json
- Plain text: https://secwatch.observer/filing/0001104659-24-092447.txt

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