SIRI Institutional Ownership & Shareholders
SIRIUS XM HOLDINGS INC (SIRI) is currently held by 590 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $8.28B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Berkshire Hathaway is currently the largest disclosed institutional shareholder of SIRI tracked by InsiderSet, reporting ownership valued at approximately $3.69B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $3.62B, representing an estimated loss of -1.79% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 70% of the total disclosed SIRI value among the investors covered in this analysis. Major shareholders include Berkshire Hathaway, Blackrock, Inc., Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in SIRIUS XM HOLDINGS INC (SIRI).
This page ranks the largest institutional SIRI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
590
Total Reported Value
$8.28B
Largest Holder
Berkshire Hathaway
Largest Position
$3.69B
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
78
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Berkshire Hathaway | Warren Buffett | 1.23% | 124,807,117 | $3,686,802,237 | $3,620,654,464 | -$66,147,773 | -1.79% |
| Blackrock, Inc. | 0.01% | 17,602,229 | $519,969,849 | $510,640,663 | -$9,329,186 | -1.79% | |
| Dimensional Fund Advisors Lp | 0.06% | 10,512,352 | $310,527,367 | $304,963,332 | -$5,564,035 | -1.79% | |
| Vanguard Portfolio Management Llc | 0.01% | 9,082,629 | $268,300,861 | $263,487,067 | -$4,813,794 | -1.79% | |
| Vanguard Capital Management Llc | 0.01% | 8,386,784 | $247,745,599 | $243,300,604 | -$4,444,995 | -1.79% | |
| Kontiki Capital Management (Hk) Ltd. | 11.78% | 6,082,824 | $179,686,621 | $176,462,724 | -$3,223,897 | -1.79% | |
| State Street Corp | 0.01% | 5,992,497 | $177,018,361 | $173,842,338 | -$3,176,023 | -1.79% | |
| Boston Partners | 0.13% | 5,080,806 | $150,170,810 | $147,394,182 | -$2,776,628 | -1.85% | |
| Gates Capital Management, Inc. | 4.40% | 4,539,927 | $134,109,444 | $131,703,282 | -$2,406,162 | -1.79% | |
| Geode Capital Management, Llc | 0.01% | 3,901,488 | $115,276,087 | $113,182,167 | -$2,093,920 | -1.82% | |
| Lsv Asset Management | 0.19% | 3,620,469 | $106,949,000 | $105,029,806 | -$1,919,194 | -1.79% | |
| Aqr Capital Management Llc | 0.03% | 3,396,308 | $98,374,052 | $98,526,895 | +$152,843 | +0.16% | |
| Citadel Advisors Llc | 0.06% | 3,310,550 | $97,793,647 | $96,039,056 | -$1,754,592 | -1.79% | |
| Bank Of New York Mellon Corp | 0.01% | 3,012,240 | $88,981,571 | $87,385,082 | -$1,596,489 | -1.79% | |
| Goldman Sachs Group Inc | 0.01% | 3,007,137 | $88,830,827 | $87,237,044 | -$1,593,783 | -1.79% | |
| Check Capital Management Inc/Ca | 4.98% | 2,927,799 | $86,487,194 | $84,935,449 | -$1,551,745 | -1.79% | |
| J. Goldman & Co Lp | 3.04% | 2,921,651 | $86,305,571 | $84,757,096 | -$1,548,475 | -1.79% | |
| Canada Pension Plan Investment Board | 0.04% | 2,364,933 | $69,860,121 | $68,606,706 | -$1,253,415 | -1.79% | |
| Norges Bank | 0.01% | 2,091,917 | $61,795,228 | $60,686,512 | -$1,108,716 | -1.79% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,760,633 | $52,009,092 | $51,075,963 | -$933,129 | -1.79% | |
| Squarepoint Ops Llc | 0.09% | 1,649,327 | $48,721,120 | $47,846,976 | -$874,144 | -1.79% | |
| Pacer Advisors, Inc. | 0.13% | 1,646,246 | $48,630,000 | $47,757,596 | -$872,404 | -1.79% | |
| Morgan Stanley | 0.00% | 1,641,435 | $48,488,054 | $47,618,029 | -$870,025 | -1.79% | |
| Northern Trust Corp | 0.01% | 1,584,505 | $46,806,278 | $45,966,490 | -$839,788 | -1.79% | |
| Tidal Investments Llc | 0.11% | 1,524,823 | $45,043,271 | $44,235,115 | -$808,156 | -1.79% | |
| Penserra Capital Management Llc | 0.33% | 1,432,897 | $42,327,000 | $41,568,342 | -$758,658 | -1.79% | |
| Gotham Asset Management, Llc | 0.10% | 1,383,251 | $40,861,235 | $40,128,112 | -$733,123 | -1.79% | |
| Private Management Group Inc | 0.96% | 1,234,502 | $36,467,189 | $35,812,903 | -$654,286 | -1.79% | |
| Vanguard Fiduciary Trust Co | 0.01% | 1,188,199 | $35,099,398 | $34,469,653 | -$629,745 | -1.79% | |
| Weitz Investment Management, Inc. | 2.43% | 1,188,000 | $35,093,520 | $34,463,880 | -$629,640 | -1.79% | |
| Deprince Race & Zollo Inc | 0.60% | 1,313,103 | $33,983,106 | $38,093,118 | +$4,110,012 | +12.09% | |
| Thompson Siegel & Walmsley Llc | 0.57% | 1,072,555 | $31,683,000 | $31,114,821 | -$568,179 | -1.79% | |
| Susquehanna International Group, Llp | 0.03% | 1,037,874 | $30,658,798 | $30,108,725 | -$550,073 | -1.79% | |
| Wittenberg Investment Management, Inc. | 9.44% | 934,864 | $27,615,883 | $27,120,405 | -$495,478 | -1.79% | |
| Ubs Group Ag | 0.00% | 911,488 | $26,925,355 | $26,442,267 | -$483,088 | -1.79% | |
| Allianz Asset Management Gmbh | 0.02% | 907,187 | $26,798,304 | $26,317,495 | -$480,809 | -1.79% | |
| First Trust Advisors Lp | 0.02% | 882,128 | $26,058,061 | $25,590,533 | -$467,528 | -1.79% | |
| Raymond James Financial Inc | 0.01% | 854,987 | $25,256,305 | $24,803,173 | -$453,132 | -1.79% | |
| Hbk Investments L P | 0.29% | 848,845 | $25,074,881 | $24,624,993 | -$449,888 | -1.79% | |
| Two Sigma Investments, Lp | 0.02% | 791,961 | $23,394,528 | $22,974,789 | -$419,739 | -1.79% | |
| Jpmorgan Chase & Co | 0.00% | 738,539 | $21,845,146 | $21,425,016 | -$420,130 | -1.92% | |
| Price T Rowe Associates Inc | 0.00% | 730,327 | $21,575,000 | $21,186,786 | -$388,214 | -1.80% | |
| Ameriprise Financial Inc | 0.00% | 728,508 | $21,548,142 | $21,134,017 | -$414,125 | -1.92% | |
| Invesco Ltd. | 0.00% | 723,901 | $21,384,035 | $21,000,368 | -$383,667 | -1.79% | |
| Empyrean Capital Partners, Lp | 0.72% | 692,775 | $20,464,574 | $20,097,403 | -$367,171 | -1.79% | |
| Hi-Line Capital Management, Llc | 5.63% | 677,658 | $20,018,017 | $19,658,859 | -$359,158 | -1.79% | |
| Deutsche Bank Ag\ | 0.01% | 660,839 | $19,521,183 | $19,170,939 | -$350,244 | -1.79% | |
| Royal Bank Of Canada | 0.00% | 652,397 | $19,271,000 | $18,926,037 | -$344,963 | -1.79% | |
| Panagora Asset Management Inc | 0.06% | 641,689 | $18,955,493 | $18,615,398 | -$340,095 | -1.79% | |
| Bislett Management, Llc | 12.01% | 600,000 | $17,724,000 | $17,406,000 | -$318,000 | -1.79% |
Frequently asked questions about SIRI
Who are the largest institutional holders of SIRI?
The largest institutional holders of SIRI reported in the latest SEC Form 13F filings include Berkshire Hathaway, Blackrock, Inc., Dimensional Fund Advisors Lp, Vanguard Portfolio Management Llc, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported SIRI position.
What is SIRI institutional ownership?
This page tracks SIRI positions reported by institutional investment managers through SEC Form 13F. SIRIUS XM HOLDINGS INC (SIRI) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SIRI?
InsiderSet currently tracks 590 institutional managers reporting SIRI holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SIRI shareholders.
How much SIRI stock do institutions own?
Institutional investment managers disclosed approximately $8.28B in SIRI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SIRI institutional ownership last updated?
The latest SIRI institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SIRI holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SIRI position after the reporting date.
Are institutions buying or selling SIRI?
Institutional buying and selling can be analyzed by comparing SIRI positions across consecutive 13F reporting periods. InsiderSet's SIRI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SIRI ownership changes.
How has SIRI institutional ownership changed over time?
InsiderSet tracks SIRI institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.