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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/sirius-xm-holdings-inc/xbrl_doc_only/2662">Cover</a>
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                                <a class="menu-item " href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2663">Financial Statements</a>
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                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2663">CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2664">CONSOLIDATED BALANCE SHEETS</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2665">CONSOLIDATED BALANCE SHEETS (Parenthetical)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2666">CONSOLIDATED STATEMENT OF STOCKHOLDERS??? EQUITY (DEFICIT)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2667">CONSOLIDATED STATEMENT OF STOCKHOLDERS??? EQUITY (DEFICIT) (Parenthetical)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2668">CONSOLIDATED STATEMENTS OF CASH FLOWS</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2669">CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</a></li>
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                                <a class="menu-item " href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2670">Notes to Financial Statements</a>
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                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2670">Business &amp; Basis of Presentation</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2671">Summary of Significant Accounting Policies</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2672">Acquisitions</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2673">Restructuring Costs</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2674">Earnings per Share</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2675">Receivables, net</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2676">Inventory, net</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2677">Goodwill</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2678">Intangible Assets</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2679">Property and Equipment</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2680">Leases</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2681">Related Party Transactions</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2682">Debt</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2683">Stockholders&#039; Equity</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2684">Benefit Plans</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2685">Commitments and Contingencies</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2686">Income Taxes</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2687">Segments and Geographic Information</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2688">Subsequent Events</a></li>
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                                <a class="menu-item " href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2689">Accounting Policies</a>
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                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2689">Summary of Significant Accounting Policies (Policies)</a></li>
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                                <a class="menu-item " href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2690">Notes Tables</a>
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                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2690">Summary of Significant Accounting Policies (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2691">Acquisitions (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2692">Earnings per Share (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2693">Receivables, net (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2694">Inventory, net (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2695">Intangible Assets (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2696">Property and Equipment (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2697">Leases (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2698">Debt (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2699">Stockholders&#039; Equity (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2700">Benefit Plans (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2701">Commitments and Contingencies (Tables)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2702">Segments and Geographic Information (Tables)</a></li>
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                                <a class="menu-item current" href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2703">Notes Details</a>
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                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2703">Business &amp; Basis of Presentation (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2704">Summary of Significant Accounting Policies - Liabilities Measured at Fair Value (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2705">Summary of Significant Accounting Policies - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2706">Acquisitions - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2707">Acquisitions - Schedule of Acquisition (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2708">Restructuring Costs (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2709">Earnings per Share - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2710">Earnings per Share - Schedule of Earnings Per Share (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2711">Receivables, net (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2712">Inventory, net (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2713">Goodwill (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2714">Intangible Assets - Summary of Intangible Assets (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2715">Intangible Assets - Indefinite Life Intangible Assets (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2716">Intangible Assets - Definite Life Intangible Assets (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2717">Intangible Assets - Expected Amortization Expense for Each of the Fiscal Years (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2718">Property and Equipment - Schedule of Property and Equipment (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2719">Property and Equipment - Schedule of Construction in Progress (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2720">Property and Equipment - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2721">Leases - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2722">Leases - Components of Lease Expense (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2723">Related Party Transactions - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2724">Debt - Schedule of Long-term Debt Instruments (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2725">Debt - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2726">Stockholders&#039; Equity - Common Stock (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2727">Stockholders&#039; Equity - Quarterly Dividends (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2728">Stockholders&#039; Equity - Stock Repurchase Program (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2729">Stockholders&#039; Equity - Schedule of Repurchase Agreements (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2730">Stockholders&#039; Equity - Preferred Stock (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2731">Benefit Plans - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2732">Benefit Plans - 2015 Long-Term Stock Incentive Plan (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2733">Benefit Plans - Other Plans (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2734">Benefit Plans - Fair Value of Options Granted (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2735">Benefit Plans - Stock Options Activity Under Share-Based Payment Plans (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2736">Benefit Plans - Summary of Restricted Stock Unit and Stock Award Activity (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2737">Benefit Plans - 401(k) Savings Plan (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2738">Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2739">Commitments and Contingencies - Expected Contractual Cash Commitments (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2740">Commitments and Contingencies - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2741">Income Taxes - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2742">Segments and Geographic Information - Additional Information (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2743">Segments and Geographic Information - Revenue and Profit by Segment (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2744">Segments and Geographic Information - Gross Profit to Consolidated Income Reconciliation (Details)</a></li>
                                                                            <li><a href="/sec-filings/sirius-xm-holdings-inc/xbrl_doc_only/2745">Subsequent Events (Details)</a></li>
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            <div class="spr-xbrl-document">
                <h4>Benefit Plans - 401(k) Savings Plan (Details)</h4>
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