Security Snapshot

Sirius XM Holdings Inc. - Common Stock, par value $0.001 per share (SIRI) Institutional Ownership

CUSIP: 829933100

13F Institutional Holders and Ownership History from Q3 2024 to Q1 2026

Latest Period

Q1 2026

Institutions Reporting

553

Shares (Excl. Options)

258,904,177

Price

$23.08

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Security type / class
Equity / Common Stock, par value $0.001 per share
Symbol
SIRI on Nasdaq
All holders as of 31 Mar 2026
Q1 2026
Total 13F shares
258,904,177
Latest holder snapshot 5 signals
Total 13F value
$5,974,602,070
Portfolio coverage rank
0.01%
Share change
+9,746,521
Value change
+$250,361,360
Number of holders
553
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
334,923,564
SEC-reported price per share
$26.79
Insider filing price
$26.79
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • SIRI - Sirius XM Holdings Inc. - Common Stock, par value $0.001 per share is tracked under CUSIP 829933100.
  • 553 institutions reported positions in Q1 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 506 to 553 between Q4 2025 and Q1 2026.
  • SEC-reported value moved from $4,983,156,370 to $5,974,602,070.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 553 institutions filings for Q1 2026.

Open SEC evidence

Security key

829933100

Latest holder period

Q1 2026

13F holders

553

13D/G owners

4

CIK / CUSIP context first

Open Q1 2026 holders SIRI full holder history SIRIUS XM HOLDINGS INC. SEC filings SIRIUS XM HOLDINGS INC. company facts SIRIUS XM HOLDINGS INC. insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
SIRI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BERKSHIRE HATHAWAY INC 37% $2,904,885,648 124,807,117 Warren E. Buffett 30 Sep 2025
BUFFETT WARREN E 35% $2,552,592,091 117,468,573 Warren E. Buffett 31 Dec 2024
VANGUARD GROUP INC 5.8% $429,056,720 19,744,902 The Vanguard Group 31 Mar 2025
MALONE JOHN C 5.5% $493,493,125 18,420,796 John C. Malone 21 Apr 2026

As of 31 Mar 2026, 553 institutional investors reported holding 258,904,177 shares of Sirius XM Holdings Inc. - Common Stock, par value $0.001 per share (SIRI). This represents 77% of the company’s total 334,923,564 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
64%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Berkshire Hathaway Inc 37% 124,807,117 0% 1.1% $2,880,548,260
BlackRock, Inc. 2.9% 9,625,184 -4.2% 0% $222,149,242
VANGUARD PORTFOLIO MANAGEMENT LLC 2.6% 8,704,748 0% 0.01% $200,905,584
VANGUARD CAPITAL MANAGEMENT LLC 2.5% 8,303,630 0% 0% $191,647,780
DIMENSIONAL FUND ADVISORS LP 1.9% 6,301,181 +262% 0.03% $145,425,502
Kontiki Capital Management (HK) Ltd. 1.7% 5,696,724 -4.5% 9.2% $131,480,390
GOLDMAN SACHS GROUP INC 1.2% 3,913,128 +19% 0.01% $90,314,992
CANADA PENSION PLAN INVESTMENT BOARD 1.2% 3,860,924 +106% 0.06% $89,110,126
GEODE CAPITAL MANAGEMENT, LLC 1.1% 3,706,711 +0.48% 0.01% $85,570,838
STATE STREET CORP 1.1% 3,547,616 +1.7% 0% $81,878,977
CITADEL ADVISORS LLC 0.97% 3,261,642 +313% 0.05% $75,278,697
LSV ASSET MANAGEMENT 0.96% 3,219,977 +4.8% 0.16% $74,317,000
AQR CAPITAL MANAGEMENT LLC 0.89% 2,988,907 +106% 0.03% $68,296,535
CHECK CAPITAL MANAGEMENT INC/CA 0.88% 2,942,595 +2% 4.2% $67,915,104
Gates Capital Management, Inc. 0.82% 2,742,359 2.2% $63,293,646
THOMPSON SIEGEL & WALMSLEY LLC 0.77% 2,564,565 +11% 1% $59,190,000
AMERIPRISE FINANCIAL INC 0.72% 2,414,999 +1.7% 0.01% $55,738,184
Bank of New York Mellon Corp 0.65% 2,177,761 +7.8% 0.01% $50,262,718
MORGAN STANLEY 0.64% 2,156,763 +26% 0% $49,778,110
SEIZERT CAPITAL PARTNERS, LLC 0.55% 1,840,822 -3.1% 2% $42,486,172
HSBC HOLDINGS PLC 0.54% 1,795,954 -14% 0.02% $41,601,825
TWO SIGMA INVESTMENTS, LP 0.53% 1,777,219 -29% 0.03% $41,018,215
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.52% 1,740,191 +6.9% 0.01% $40,163,608
HRT FINANCIAL LP 0.47% 1,565,725 +3524% 0.09% $36,136,000
PRIVATE MANAGEMENT GROUP INC 0.4% 1,352,602 +0.48% 0.9% $31,218,054

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
7
Latest
Q1 2026
Rows shown
1-7 of 7
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 258,904,177 $5,974,602,070 +$250,361,360 $23.08 553
2025 Q4 249,196,383 $4,983,156,370 +$119,722,614 $20.00 506
2025 Q3 242,807,919 $5,649,757,007 -$65,390,420 $23.28 533
2025 Q2 245,834,637 $5,645,184,438 +$72,956,429 $22.97 538
2025 Q1 247,417,672 $5,576,412,386 -$154,801,273 $22.54 541
2024 Q4 254,232,221 $5,796,369,996 +$140,670,313 $22.80 541
2024 Q3 245,992,440 $5,825,067,060 +$5,587,786,215 $23.65 484
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