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        <title>Sirius XM Holdings Inc. Quarterly report pursuant to Section 13 or 15(d)</title>
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            <h3>Quarterly report pursuant to Section 13 or 15(d)</h3>
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                                <a class="menu-item " href="/sec-filings/quarterly-reports/xbrl_doc_only/5207">Cover</a>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5207">Cover</a></li>
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                                <a class="menu-item " href="/sec-filings/quarterly-reports/xbrl_doc_only/5208">Financial Statements</a>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5208">CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</a></li>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5210">CONSOLIDATED BALANCE SHEETS (Parenthetical)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5211">CONSOLIDATED STATEMENT OF STOCKHOLDERS??? EQUITY (DEFICIT)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5212">CONSOLIDATED STATEMENT OF STOCKHOLDERS??? EQUITY (DEFICIT) (Parenthetical)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5213">CONSOLIDATED STATEMENTS OF CASH FLOWS</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5214">CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</a></li>
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                                <a class="menu-item current" href="/sec-filings/quarterly-reports/xbrl_doc_only/5215">Notes to Financial Statements</a>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5215">Business &amp; Basis of Presentation</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5216">Summary of Significant Accounting Policies</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5217">Acquisitions</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5218">Restructuring Costs</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5219">Earnings per Share</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5220">Receivables, net</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5221">Goodwill</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5222">Intangible Assets</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5223">Property and Equipment</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5224">Leases</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5225">Related Party Transactions</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5226">Debt</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5227">Stockholders&#039; Equity</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5228">Benefit Plans</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5229">Commitments and Contingencies</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5230">Income Taxes</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5231">Segments and Geographic Information</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5232">Subsequent Events</a></li>
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                                <a class="menu-item " href="/sec-filings/quarterly-reports/xbrl_doc_only/5233">Accounting Policies</a>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5233">Summary of Significant Accounting Policies (Policies)</a></li>
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                                <a class="menu-item " href="/sec-filings/quarterly-reports/xbrl_doc_only/5234">Notes Tables</a>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5234">Summary of Significant Accounting Policies (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5235">Earnings per Share (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5236">Receivables, net (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5237">Intangible Assets (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5238">Property and Equipment (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5239">Leases (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5240">Debt (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5241">Stockholders&#039; Equity (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5242">Benefit Plans (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5243">Commitments and Contingencies (Tables)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5244">Segments and Geographic Information (Tables)</a></li>
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                                <a class="menu-item " href="/sec-filings/quarterly-reports/xbrl_doc_only/5245">Notes Details</a>
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                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5245">Business &amp; Basis of Presentation (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5246">Summary of Significant Accounting Policies - Schedule of Assets and Liabilities Measured at Fair Value (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5247">Summary of Significant Accounting Policies - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5248">Acquisitions - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5249">Restructuring Costs (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5250">Earnings per Share - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5251">Earnings per Share - Schedule of Earnings Per Share, Basic and Diluted (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5252">Receivables, net (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5253">Goodwill - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5254">Intangible Assets - Schedule of Intangible Assets (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5255">Intangible Assets - Indefinite Life Intangible Assets (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5256">Intangible Assets - Definite Life Intangible Assets (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5257">Intangible Assets - Schedule of Expected Future Amortization Expense (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5258">Property and Equipment - Schedule of Property and Equipment (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5259">Property and Equipment - Schedule of Construction in Progress (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5260">Property and Equipment - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5261">Leases - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5262">Leases - Schedule of Components of Lease Expense (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5263">Related Party Transactions (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5264">Debt - Schedule of Long-term Debt Instruments (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5265">Debt - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5266">Stockholders&#039; Equity - Common Stock (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5267">Stockholders&#039; Equity - Schedule of Dividends Declared (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5268">Stockholders&#039; Equity - Stock Repurchase Program (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5269">Stockholders&#039; Equity - Schedule of Repurchase Agreements (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5270">Stockholders&#039; Equity - Preferred Stock (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5271">Benefit Plans - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5272">Benefit Plans - 2015 Long-Term Stock Incentive Plan (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5273">Benefit Plans - Other Plans (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5274">Benefit Plans - Schedule of Fair Value of Options Granted (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5275">Benefit Plans - Schedule of Stock Options Activity Under Share-Based Payment Plans (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5276">Benefit Plans - Schedule of Restricted Stock Unit and Stock Award Activity (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5277">Benefit Plans - 401(k) Savings Plan (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5278">Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Narrative) (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5279">Commitments and Contingencies - Schedule of Expected Contractual Cash Commitments (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5280">Commitments and Contingencies - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5281">Income Taxes (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5282">Segments and Geographic Information - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5283">Segments and Geographic Information - Schedule of Segment Reporting Information, by Segment (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5284">Segments and Geographic Information - Schedule of Reconciliation of Revenue from Segments to Consolidated (Details)</a></li>
                                                                            <li><a href="/sec-filings/quarterly-reports/xbrl_doc_only/5285">Subsequent Events (Details)</a></li>
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                <h4>Business &amp; Basis of Presentation</h4>
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