WH

Sale of common stock effectuated pursuant to Rule 10b5-1 Trading Plan adopted March 11, 2026 solely to cover option costs, tax obligations, commissions and fees incident to the exercise of non-qualified stock options granted in accordance with Rule 16b-3 and the delivery of shares in respect thereof.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.41 to $81.48, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price.

Represents shares of common stock.

Sale of common stock effectuated pursuant to Rule 10b5-1 Trading Plan adopted March 11, 2026 solely to cover option costs, tax obligations, commissions and fees incident to the exercise of non-qualified stock options granted in accordance with Rule 16b-3 and the delivery of shares in respect thereof.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.32 to $81.32, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price.

Represents shares of common stock.

Transaction to exercise previously granted non-qualified stock options expiring on February 23, 2027 and effectuated pursuant to Rule 10b5-1 Trading Plan adopted March 11, 2026.

Represents shares of common stock.

Sale of common stock effectuated pursuant to Rule 10b5-1 Trading Plan adopted March 11, 2026 solely to cover option costs, tax obligations, commissions and fees incident to the exercise of non-qualified stock options granted in accordance with Rule 16b-3 and the delivery of shares in respect thereof.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.31 to $80.31, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price.

Represents shares of common stock.

Transaction to exercise previously granted non-qualified stock options expiring on February 23, 2027 and effectuated pursuant to Rule 10b5-1 Trading Plan adopted March 11, 2026.

The options vested in four equal installments on each of the first four anniversaries of February 27, 2021.

Represents a charitable contribution of shares of common stock to a donor advised fund, with the goal of supporting multiple myeloma research.

Represents shares of common stock.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.87 to $85.48, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Represents shares of common stock.

Common stock issued for quarterly retainer fees.

Represents shares of common stock.

Deferred stock units issued for quarterly retainer fees and dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Common stock issued for quarterly retainer fees.

Represents shares of common stock.

Deferred stock units issued for quarterly retainer fees and dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units issued for quarterly retainer fees and dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units issued for quarterly dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units issued for quarterly retainer fees. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units issued for quarterly retainer fees and dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units issued for quarterly dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units issued for quarterly retainer fees and dividends. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on April 26, 2026.

Represents shares of common stock.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.635 to $74.83, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Represents shares of common stock.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026.

Represents shares of common stock.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

Deferred stock units and accrued dividends issued under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026. Each deferred stock unit entitles the reporting person to receive one share of common stock following the reporting person's retirement or termination of service from the Board of Directors.

Represents deferred stock units.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026.

Represents shares of common stock.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026.

Represents shares of common stock.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026.

Represents shares of common stock.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026.

Represents shares of common stock.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

Common stock acquired under the Issuer's 2018 Amended and Restated Equity and Incentive Plan on vesting of previously-granted restricted stock units which vested on March 10, 2026.

Represents shares of common stock.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

Common stock withheld as payment of tax liability incident to the vesting of restricted stock units granted in accordance with Rule 16b-3.

Represents shares of common stock.

Restricted stock units granted on March 9, 2026 under the Issuer's Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued service as a Director. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued employment. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued employment. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued employment. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Issuer's Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued service as a Director. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Issuer's Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued service as a Director. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued employment. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued employment. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Issuer's Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued service as a Director. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Issuer's Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued service as a Director. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.

Restricted stock units granted on March 9, 2026 under the Issuer's Amended and Restated 2018 Equity and Incentive Plan. The units vest in four equal installments on each of the first four anniversaries of March 9, 2026, subject to the reporting person's continued service as a Director. The reporting person will receive one share of common stock for each vested restricted stock unit.

Represents restricted stock units.