SIRISirius XM Holdings Inc.

$26.52+19% 1Y

Who owns SIRI

589 institutions reported holding SIRI for 2026Q2, together 83% of the company, more than the 553 a quarter earlier.

589

Institutions reporting a position · as of 2026Q2 · up from 553 the quarter before

Shares held by institutions
281.9M

Shares held by institutions · 83% of the company · long US equity positions only, as reported on Form 13F

Reported value
$8.32B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
53%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
109
Positions exited
76
Added to
184
Reduced
135
Top 10 holdersof the company
60%
Shares sold shortsettled Sep 15, 2026
37.0M
Short interestof shares outstanding
11%
Days to coverat the average daily volume
9.8
Change in the short positionsince the Aug 31, 2026 count
+16%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2589281.9M$8.32B
2026Q1553258.0M$5.95B
2025Q4512249.2M$4.98B
2025Q3539242.6M$5.64B
2025Q2542245.5M$5.64B
2025Q1545248.6M$5.60B
2024Q4550254.4M$5.80B
2024Q3504246.8M$5.84B
2024Q2557441.7M$1.26B
2024Q1622364.4M$1.42B
2023Q4643409.7M$2.24B
2023Q3605397.0M$1.79B
2023Q2604406.9M$1.84B
2023Q1636408.9M$1.63B
2022Q4664399.1M$2.33B
2022Q3630397.2M$2.29B
Largest reported holders, 2026Q2
HolderShares% of companyValue
Berkshire Hathaway Inc124.8M37%$3.69B
VANGUARD GROUP INC19.0M5.6%$561M
BlackRock Inc.17.6M5.2%$520M
DIMENSIONAL FUND ADVISORS LP10.5M3.1%$311M
Kontiki Capital Management (HK) Ltd.6.1M1.8%$180M
STATE STREET CORP6.0M1.8%$177M
Robeco Investment Management, Inc.5.1M1.5%$150M
Gates Capital Management, Inc.4.5M1.3%$134M
GEODE CAPITAL MANAGEMENT LLC3.9M1.2%$115M
LSV ASSET MANAGEMENT3.6M1.1%$107M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202637.0M11%9.8
Aug 31, 202631.8M9.4%10.4
Aug 14, 202635.1M10%8.2
Jul 31, 202634.7M10%8.6
Jul 15, 202636.7M11%9.5
Jun 30, 202636.4M11%7.2
Jun 15, 202636.6M11%4.8
May 29, 202628.0M8.3%5.8
May 15, 202629.2M8.6%7.7
Apr 30, 202628.9M8.5%3.4
Apr 15, 202631.3M9.3%8.5
Mar 31, 202631.5M9.3%9.6

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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