Security key
829933100
SIRIUS XM HOLDINGS INC. - Common Stock, par value $0.001 per share (SIRI)
CUSIP: 829933100
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock, par value $0.001 per share
- Total 13F shares
- 258,951,899
- Total 13F value
- $5,975,703,516
- Share change
- +9,745,375
- Put/Call ratio
- 57%
- SEC-reported price per share
- $23.08
- Number of holders
- 556
- Value change
- +$250,334,917
- Number of buys
- 291
- Number of sells
- 179
- Shares outstanding
- 334,923,564
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
556
Top holders
10
SIRI full security history
Ownership snapshot
Full 13F holder table
SIRIUS XM HOLDINGS INC. SEC filings
SIRIUS XM HOLDINGS INC. company facts
Broader feeds
Ownership snapshot
Top reported holders of SIRI - SIRIUS XM HOLDINGS INC. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BERKSHIRE HATHAWAY INC
Disclosed value leader
BERKSHIRE HATHAWAY INC
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G
3/4/5
13F
Lead comparable stake: 37%
13D/G row: BERKSHIRE HATHAWAY INC
Showing 1-6 of 15 holder rows.
Quick read
BERKSHIRE HATHAWAY INC leads the comparable SEC ownership view at 37%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BERKSHIRE HATHAWAY INC's linked filing trail.
Comparable ownership
Top 5
BERKSHIRE HATHAWAY INC
37%
Warren E. Buffett
35%
Thomas D. Barry
0.05%
Richard N. Baer
0.04%
VANGUARD GROUP INC
5.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC |
13D/G
3/4/5
13F
Warren E. Buffett · 10%+ Owner · Company
|
37%
|
$2,904,885,648
124,807,117 shares
|
$0 | 30 Sep 2025 |
| Warren E. Buffett |
13D/G
|
35%
|
$2,552,592,091
117,468,573 shares
|
$0 | 31 Dec 2024 |
| Thomas D. Barry |
3/4/5
EVP and CFO
|
0.05%
|
$3,831,335
165,215 shares
|
— | 21 Nov 2025 |
| Richard N. Baer |
3/4/5
EVP, General Counsel & Sec.
|
0.04%
|
$3,339,707
144,015 shares
|
— | 21 Nov 2025 |
| VANGUARD GROUP INC |
13F
Company
|
5.5%
|
$366,318,697
18,320,515 shares
|
— | 31 Dec 2025 |
| BlackRock, Inc. |
13F
Company
|
3%
|
$200,967,810
10,050,903 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
556
Shares
258,951,899
Rows available
556
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
556
Q1 2026 holders
556
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|