BILL · BILL Holdings, Inc.

The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2025.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.08 to $37.07 per share, 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 within the range set forth in this footnote.

The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2025.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.08 to $36.06 per share, 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 within the range set forth in this footnote.

The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2025.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.08 to $37.15 per share, 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 within the range set forth in this footnote.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2023, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Includes 466 shares of the Issuer's Common Stock acquired under the Issuer's employee stock purchase plan on May 15, 2026.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs and PSUs.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Includes 330 shares of the Issuer's Common Stock acquired under the Issuer's employee stock purchase plan on May 15, 2026.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2024, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2024, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2023, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest as to 1/4th of the total shares on May 28, 2026, and thereafter 1/16th of the total shares vest quarterly over three years, subject to the continued service of the Reporting Person on each vesting date.

Represents shares withheld to satisfy tax withholding obligation in connection with the vesting of RSUs and PSUs.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest as to 1/4th of the total shares on August 28, 2025, and thereafter 1/16th of the total shares vest quarterly over three years, subject to the continued service of the Reporting Person on each vesting date.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 4 equal quarterly installments over one year, beginning November 28, 2025, subject to the continuing service of the Reporting Person on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 4 equal quarterly installments over one year, beginning November 28, 2025, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 4 equal quarterly installments over one year, beginning November 28, 2025, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2024, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 12 equal quarterly installments over three years, beginning November 28, 2025, subject to the continuing service of the Reporting Person on each vesting date.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest over three years; 1/3rd vests on August 28, 2025, and thereafter the remaining 2/3rd will vest quarterly over two years, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Includes 403 shares of the Issuer's Common Stock acquired under the Issuer's employee stock purchase plan on May 15, 2026.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest over three years; 1/3rd vests on August 28, 2025, and thereafter the remaining 2/3rd will vest quarterly over two years, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs and PSUs.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest as to 1/4th of the total shares on May 28, 2024, and thereafter 1/16th of the total shares vest quarterly over three years, subject to the continued service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2022, subject to the continuing service of the Reporting Person on each vesting date.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest over three years; 1/3rd vests on August 28, 2025, and thereafter the remaining 2/3rd will vest quarterly over two years, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs and PSUs.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2022, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Includes 540 shares of the Issuer's Common Stock acquired under the Issuer's employee stock purchase plan on November 14, 2025, and 457 shares of the Issuer's Common Stock acquired under the Issuer's employee stock purchase plan on May 15, 2026.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs and PSUs.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs and PSUs.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest over three years; 1/3rd vests on August 28, 2025, and thereafter the remaining 2/3rd will vest quarterly over two years, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2023, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2024, subject to the continuing service of the Reporting Person on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 4 equal quarterly installments over one year, beginning November 28, 2025, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each Performance Stock Unit ("PSU") represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest over three years; 1/3rd vests on August 28, 2025, and thereafter the remaining 2/3rd will vest quarterly over two years, subject to the continuing service of the Reporting Person on each vesting date.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 12 equal quarterly installments over three years, beginning November 28, 2025, subject to the continuing service of the Reporting Person on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Represents shares withheld to satisfy tax withholding obligation in connection with the vesting of RSUs and PSUs.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2023, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

The RSUs vest in 16 equal quarterly installments over four years, beginning November 28, 2024, subject to the continuing service of the Reporting Person on each vesting date.

Represents shares withheld to satisfy the tax withholding obligation in connection with the vesting of RSUs and PSUs.

Represents shares held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of the shares except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.