X0306 4 2022-03-16 0 0001786352 Bill.com Holdings, Inc. BILL 0001795501 Chung Bora C/O BILL.COM HOLDINGS, INC. 6220 AMERICA CENTER DR., SUITE 100 SAN JOSE CA 95002 0 1 0 0 Chief Experience Officer Common Stock 2022-03-16 4 M 0 7812 8.76 A 9210 D Common Stock 2022-03-16 4 M 0 1041 11.20 A 10251 D Common Stock 2022-03-16 4 M 0 937 69.37 A 11188 D Common Stock 2022-03-16 4 S 0 300 180.7367 D 10888 D Common Stock 2022-03-16 4 S 0 400 182.0625 D 10488 D Common Stock 2022-03-16 4 S 0 600 183.3533 D 9888 D Common Stock 2022-03-16 4 S 0 200 184.065 D 9688 D Common Stock 2022-03-16 4 S 0 601 185.5833 D 9087 D Common Stock 2022-03-16 4 S 0 500 186.552 D 8587 D Common Stock 2022-03-16 4 S 0 400 187.485 D 8187 D Common Stock 2022-03-16 4 S 0 200 188.465 D 7987 D Common Stock 2022-03-16 4 S 0 600 189.8633 D 7387 D Common Stock 2022-03-16 4 S 0 400 191.2575 D 6987 D Common Stock 2022-03-16 4 S 0 200 192.33 D 6787 D Common Stock 2022-03-16 4 S 0 1480 193.7777 D 5307 D Common Stock 2022-03-16 4 S 0 1550 194.7729 D 3757 D Common Stock 2022-03-16 4 S 0 902 195.8149 D 2855 D Common Stock 2022-03-16 4 S 0 1000 197.094 D 1855 D Common Stock 2022-03-16 4 S 0 1239 198.3078 D 616 D Employee Stock Option (Right to Buy) 8.76 2022-03-16 4 M 0 7812 0.00 D 2029-02-12 Common Stock 7812 70313 D Employee Stock Option (Right to Buy) 11.20 2022-03-16 4 M 0 1041 0.00 D 2029-05-14 Common Stock 1041 14584 D Employee Stock Option (Right to Buy) 69.37 2022-03-16 4 M 0 937 0.00 D 2030-05-27 Common Stock 937 8438 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.56 to $181.01 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.67 to $182.48 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.01 to $183.54 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.01 to $184.12 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.16 to $186.15 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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.21 to $186.99 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.23 to $187.66 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.44 to $188.49 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.68 to $190.26 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.83 to $191.82 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $192.08 to $192.58 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $193.30 to $194.20 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.38 to $195.37 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.53 to $196.44 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $196.65 to $197.45 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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $197.96 to $198.73 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 option vested 25% of the total shares on December 10, 2019 and thereafter 1/48th of the total shares vest monthly until such time as the option is 100% vested, subject to the continuing service of the Reporting Person on each vesting date. The option vested 1/48th of the total shares monthly beginning June 15, 2019 until such time as the option is 100% vested, subject to the continuing service of the Reporting Person on each vesting date. The option vests in 16 equal quarterly installments over four years, beginning August 28, 2020, subject to the continuing service of the Reporting Person on each vesting date. /s/ Rajesh Aji, Attorney-in-Fact 2022-03-18