SIRI · Sirius Xm Holdings Inc.

The reporting person transferred 6,688 shares of SIRI common stock to the Hartenstein Family Trust and the reporting person and members of his immediate family are the sole beneficiaries of the trust. The reporting person remans the beneficial owner of the securities held by the trust.

The reporting person transferred 6,688 shares of SIRI common stock to the Hartenstein Family Trust and the reporting person and members of his immediate family are the sole beneficiaries of the trust. The reporting person remans the beneficial owner of the securities held by the trust.

This transaction occurred pursuant to a 10b5-1 trading plan established on August 1, 2025.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

Restricted Stock Units will vest on May 29, 2027.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

Represents the weighted average sales price for the price increments ranging from $29.67 to $29.96. The Reporting Person undertakes to provide, upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

Represents the surrender of common stock to the Company to cover withholding taxes upon the vesting of restricted stock units and related dividends.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On May 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, May 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

Represents the surrender of common stock to the Company to cover withholding taxes upon the vesting of restricted stock units and related dividends.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

Reflects a transfer made between the reporting person and a grantor retained annuity trust ("GRAT"). Such transfer was exempt from reporting pursuant to Rule 16a-13 of the Securities Exchange Act of 1934, as amended.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

On February 27, 2026, Sirius XM Holdings Inc. ("Sirius XM") paid a cash dividend of $0.27 per share on each share of its outstanding common stock. The dividend was payable to all holders of Sirius XM's common stock on the record date, February 11, 2026. Pursuant to the terms of the agreement governing the outstanding restricted stock units held by the filer, the filer received certain additional restricted stock units as a result of this cash dividend. These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate.

Approximately one-third of restricted stock units will vest on 2/9/2027; 2/9/2028 and 2/9/2029.

Approximately one-half of restricted stock units will vest on 2/9/2027 and 2/9/2028.

Approximately one-third of restricted stock units will vest on 1/2/2027; 1/2/2028 and 12/29/2028.

Approximately one-half of restricted stock units will vest on 1/2/2027 and 1/2/2028.

Approximately one-third of restricted stock units will vest on 2/10/2027; 2/10/2028 and 2/10/2029.