Results of Operations and Financial Condition On July 30, 2026 , Sirius XM Holdings Inc. reported its financial and operating results for the three and six months ended June 30, 2026. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Executive Vice President and Chief Operating Officer — Wayne D. Thorsen: Mr. Thorsen ceased serving as an employee of the Company without a named successor.

The filing pertains to an amendment of a stock incentive plan, not a management change.

Results of Operations and Financial Condition On April 30, 2026 , Sirius XM Holdings Inc. reported its financial and operating results for the three months ended March 31, 2026. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Other Events. On March 5, 2026, Sirius XM Radio LLC (“SiriusXM”), a subsidiary of Sirius XM Holdings Inc. (the “Company,” “we,” “us” or “our”), settled its previously announced cash tender offer (the “Tender Offer”) for any and all of its outstanding 3.125% Senior Notes due 2026 (the “3.125% Notes”). A total of approximately $498.9 million (49.89%) of 3.125% Notes were purchased in the Tender Offer on March 5, 2026. A portion of the net proceeds from the issuance of SiriusXM’s 5.875% Senior N…

Entry into a Material Definitive Agreement. On March 4, 2026, Sirius XM Radio LLC (“SiriusXM”), a subsidiary of Sirius XM Holdings Inc. (the “Company,” “we,” “us” or “our”), issued $1,250,000,000 aggregate principal amount of 5.875% Senior Notes due 2032 (the “Notes”). The Notes were sold to Citigroup Global Markets Inc., BofA Securities, Inc., BNP Paribas Securities Corp., Credit Agricole Securities (USA) Inc., J.P. Morgan Securities LLC, Mizuho Securities USA LLC, Morgan Stanley & Co. LLC,…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The response to

Other Events. On March 4, 2026, Sirius XM Holdings Inc. issued a press release announcing the pricing terms of the previously announced cash tender offer by its subsidiary, Sirius XM Radio LLC (“SiriusXM”), for any and all of SiriusXM’s outstanding 3.125% Senior Notes due 2026. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Other Events. On February 26, 2026, Sirius XM Holdings Inc. (the “Company,” “we,” “us” or “our”) issued a press release announcing the pricing of $1,250,000,000 aggregate principal amount of 5.875% Senior Notes due 2032 (the “Notes”), to be issued by our subsidiary, Sirius XM Radio LLC (“SiriusXM”). This represents an increase of $250,000,000 in aggregate principal amount in the offering size of the Notes. The offering is expected to close on March 4, 2026, subject to customary closing condit…

Other Events. On February 26, 2026, Sirius XM Holdings Inc. (the “Company,” “we,” “us” or “our”) issued a press release announcing the commencement of a private offering (the “Offering”) of $1,000,000,000 aggregate principal amount of Senior Notes due 2032 (the “Notes”) to be issued by our subsidiary, Sirius XM Radio LLC (“SiriusXM”). SiriusXM intends to use the net proceeds from the Offering, together with cash on hand, to (i) purchase any and all of its 3.125% Senior Notes due 2026 (the “3.…

Results of Operations and Financial Condition On February 5, 2026 , Sirius XM Holdings Inc. reported its financial and operating results for the three and twelve months ended December 31, 2025. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Executive Vice President, General Counsel and Secretary — Richard N. Baer: Richard N. Baer is retiring and will be succeeded by Eve Konstan.

Executive Vice President and Chief Financial Officer — Zachary J. Coughlin: Sirius XM Radio LLC appointed Zachary J. Coughlin as Executive Vice President and Chief Financial Officer, effective January 1, 2026.

Results of Operations and Financial Condition On October 30, 2025 , Sirius XM Holdings Inc. reported its financial and operating results for the three and nine months ended September 30, 2025. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Director — Dave Stephenson: The company expanded its board by adding an experienced executive from another prominent tech company.

Entry into a Material Definitive Agreement. On August 20, 2025, Sirius XM Radio LLC (“Sirius XM”), our subsidiary, entered into an amendment (“Amendment No. 11”) to its existing credit agreement with JPMorgan Chase Bank, N.A., as the administrative agent, and other agents and lenders (the “Credit Agreement”). Prior to Amendment No. 11, the Credit Agreement consisted of a (i) $1.75 billion senior secured revolving credit facility (“Revolving Facility”), from which Sirius XM could borrow and re…

Results of Operations and Financial Condition On July 31, 2025 , we reported our financial and operating results for the three and six months ended June 30, 2025. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Results of Operations and Financial Condition On May 1, 2025 , we reported our financial and operating results for the three months ended March 31, 2025. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Director — Anjali Sud: Appointment of Anjali Sud to the Board of Directors to fill a vacancy.

Executive Vice President, General Counsel and Secretary — Richard N. Baer: Sirius XM Radio LLC hired Richard N. Baer as Executive Vice President, General Counsel and Secretary.

Results of Operations and Financial Condition On January 30, 2025 , we reported our financial and operating results for the three months and year ended December 31, 2024. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Executive Vice President, General Counsel and Secretary — Patrick L. Donnelly: Patrick L. Donnelly is retiring in early 2025 with an orderly transition plan.

Executive Vice President and Chief Operating Officer — Wayne D. Thorsen: Sirius XM Radio LLC appointed Wayne D. Thorsen as Executive Vice President and Chief Operating Officer.

Results of Operations and Financial Condition On October 31, 2024 , we reported our financial and operating results for the three and nine months ended September 30, 2024. These results are discussed in the press release attached hereto as Exhibit 99.1, which is incorporated by reference in its entirety.

Other Events. Following the Merger Effective Time, the Board of New Sirius authorized a $1.166 billion common stock repurchase program. The $1.166 billion common stock repurchase program is a continuation of the stock repurchase program of Old Sirius. This newly authorized amount represents the amount that remained available under Old Sirius’s $18 billion common stock repurchase program that began in December 2012. Shares of common stock may be purchased from time to time on the open market a…