SIRIUS XM HOLDINGS INC. (SIRI) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: April 30, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 0.3% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
340M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

SIRI currently has 336M outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 0.3% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Apr 30, 2026

10-Q filing | 336.0M shares outstanding

340M 0
Jul 31, 2025

10-Q filing | 338.0M shares outstanding

340M 0
May 01, 2025

10-Q filing | 339.0M shares outstanding

340M 0
Jan 30, 2025

10-K filing | 338.0M shares outstanding

340M 0
Oct 31, 2024

10-Q filing | 339.0M shares outstanding

340M 0
Aug 01, 2024

10-Q filing | 3848.0M shares outstanding

3.8B 0
Apr 30, 2024

10-Q filing | 3845.0M shares outstanding

3.8B 0
Feb 01, 2024

10-K filing | 3858.0M shares outstanding

3.9B 0
Oct 31, 2023

10-Q filing | 3845.0M shares outstanding

3.8B 0
Aug 01, 2023

10-Q filing | 3861.0M shares outstanding

3.9B 0
Apr 27, 2023

10-Q filing | 3889.0M shares outstanding

3.9B 0
Feb 02, 2023

10-K filing | 3916.0M shares outstanding

3.9B 0
Nov 01, 2022

10-Q filing | 3900.0M shares outstanding

3.9B 0
Jul 28, 2022

10-Q filing | 3928.0M shares outstanding

3.9B 0
Apr 29, 2022

8-K filing: Sirius XM Holdings Inc. corrected an error in their Q1 2022 10-Q filing, stating they repurchased 3.6 million shares for $23.5 million instead of the previously reported 65 million shares for $409 million between April 1, 2022 and April 26, 2022. ($23.5M proceeds)

3.9B 0
Apr 28, 2022

10-Q filing | 3948.0M shares outstanding

3.9B 0
Feb 01, 2022

10-K filing | 4062.0M shares outstanding

4.1B 0
Nov 04, 2021

8-K filing: Liberty Media acquired 43,658,800 shares of the company's common stock in exchange for 5,347,320 shares of Liberty Media's Series A Liberty SiriusXM Common Stock, with the transaction closing on November 3, 2021.

4B 0
Oct 28, 2021

10-Q filing | 4044.0M shares outstanding

4B 0
Jul 27, 2021

10-Q filing | 4079.0M shares outstanding

4.1B 0
Apr 28, 2021

10-Q filing | 4137.0M shares outstanding

4.1B 0
Feb 02, 2021

10-K filing | 4330.0M shares outstanding

4.3B 0
Oct 22, 2020

10-Q filing | 4326.0M shares outstanding

4.3B 0
Jul 30, 2020

10-Q filing | 4369.0M shares outstanding

4.4B 0
Apr 28, 2020

10-Q filing | 4405.0M shares outstanding

4.4B 0
Feb 04, 2020

10-K filing | 4501.0M shares outstanding

4.5B 0
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