X0202 SCHEDULE 13D/A 0001517137 XXXXXXXX LIVE 3 Common Stock, $0.00001 par value per share 08/20/2026 false 0001786352 090043100 BILL Holdings, Inc.

6220 AMERICA CENTER DR. SUITE 100 SAN JOSE CA 95002

JEFFREY C. SMITH 212-845-7977 STARBOARD VALUE LP 777 Third Avenue, 18th Floor New York NY 10017 ANDREW FREEDMAN, ESQ. 212-451-2300 OLSHAN FROME WOLOSKY LLP 1325 Avenue of the Americas New York NY 10019 MEAGAN REDA, ESQ. 212-451-2300 OLSHAN FROME WOLOSKY LLP 1325 Avenue of the Americas New York NY 10019 0001517137 N Starboard Value LP OO N DE 8639900.00 0.00 8639900.00 0.00 8639900.00 N 10.1 PN Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. 0001373638 N STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD WC N E9 4597782.00 0.00 4597782.00 0.00 4597782.00 N 5.4 CO Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. 0001519812 N STARBOARD VALUE & OPPORTUNITY S LLC WC N DE 681182.00 0.00 681182.00 0.00 681182.00 N 0.8 OO 0001767736 N Starboard Value & Opportunity Master Fund L LP WC N E9 239363.00 0.00 239363.00 0.00 239363.00 N 0.3 PN 0001767773 N Starboard Value L LP OO N DE 239363.00 0.00 239363.00 0.00 239363.00 N 0.3 PN 0001575979 N Starboard Value R GP LLC OO N DE 239363.00 0.00 239363.00 0.00 239363.00 N 0.3 OO 0001833016 N Starboard X Master Fund Ltd WC N E9 1712590.00 0.00 1712590.00 0.00 1712590.00 N 2.0 CO 0001517138 N Starboard Value GP LLC OO N DE 8639900.00 0.00 8639900.00 0.00 8639900.00 N 10.1 OO Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. 0001517139 N Starboard Principal Co LP OO N DE 8639900.00 0.00 8639900.00 0.00 8639900.00 N 10.1 PN Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. 0001517140 N Starboard Principal Co GP LLC OO N DE 8639900.00 0.00 8639900.00 0.00 8639900.00 N 10.1 OO Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. 0001362697 N Smith Jeffrey C OO N X1 0.00 8639900.00 0.00 8639900.00 8639900.00 N 10.1 IN Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. 0001410600 N Feld Peter A OO N X1 2610.00 8639900.00 2610.00 8639900.00 8642510.00 N 10.1 IN Note to rows (7)(9)(11): Includes 1,614,152 shares of Common Stock underlying certain forward purchase contracts exercisable within 60 days hereof. Common Stock, $0.00001 par value per share BILL Holdings, Inc. 6220 AMERICA CENTER DR. SUITE 100 SAN JOSE CA 95002 The following constitutes Amendment No. 3 to the Schedule 13D filed by the undersigned ("Amendment No. 3"). This Amendment No. 3 amends the Schedule 13D as specifically set forth herein. Unless otherwise defined herein, all capitalized terms used herein shall have the meanings given to them in the Schedule 13D. Item 3 is hereby amended and restated to read as follows: The securities of the Issuer purchased by each of Starboard V&O Fund, Starboard S LLC, Starboard L Master, Starboard X Master and held in the Starboard Value LP Account were purchased with working capital (which may, at any given time, include margin loans made by brokerage firms in the ordinary course of business) in open market purchases, except as otherwise noted. The aggregate purchase price of the 4,597,782 Shares beneficially owned by Starboard V&O Fund is approximately $205,728,347, excluding brokerage commissions (including $69,096,198 paid as consideration for Starboard V&O Fund's entry into certain forward purchase contracts providing for the purchase of 1,614,152 Shares). The aggregate purchase price of the 681,182 Shares beneficially owned by Starboard S LLC is approximately $30,538,117, excluding brokerage commissions. The aggregate purchase price of the 239,363 Shares beneficially owned by Starboard L Master is approximately $10,731,868, excluding brokerage commissions. The aggregate purchase price of the 1,712,590 Shares beneficially owned by Starboard X Master is approximately $71,914,018, excluding brokerage commissions. The aggregate purchase price of the 1,408,983 Shares held in the Starboard Value LP Account is approximately $62,212,000, excluding brokerage commissions. In connection with the appointment of Peter A. Feld to the Board of Directors of the Issuer (the "Board"), as further described in Amendment No. 2 to the Schedule 13D, Mr. Feld has been awarded an aggregate of 7,831 restricted stock units ("RSUs") in connection with his service as a director of the Issuer, of which 2,610 RSUs vest within 60 days of the date hereof and 5,221 remain unvested and do not vest within 60 days of the date hereof. Item 5(a) is hereby amended and restated to read as follows: The percentages used in this Schedule 13D are based upon 85,276,782 Shares outstanding as of August 13, 2026, as reported in the Issuer's Annual Report on Form 10-K filed with the SEC on August 20, 2026. This Amendment No. 3 is being filed due to a change in the percentage of the outstanding number of Shares owned by the Reporting Persons solely due to a reduction in the number of Shares outstanding. See rows (11) and (13) of the cover pages to this Schedule 13D for the aggregate number of Shares and percentage of the Shares beneficially owned by each of the Reporting Persons. The filing of this Schedule 13D shall not be deemed an admission that the Reporting Persons are, for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, the beneficial owners of any securities of the Issuer that he or it does not directly own. Each of the Reporting Persons specifically disclaims beneficial ownership of the securities reported herein that he or it does not directly own. See rows (7) through (10) of the cover pages to this Schedule 13D for the number of Shares as to which each Reporting Person has the sole or shared power to vote or direct the vote and the sole or shared power to dispose or to direct the disposition. Item 5(c) is hereby amended to add the following: The Reporting Persons have not entered into any transactions in the Shares during the past sixty days. Item 6 is hereby amended to add the following: On October 17, 2025, Mr. Feld, in his capacity as a director of the Issuer, was awarded 7,831 RSUs which vest as to 1/3 of the total Shares annually on each of October 17, 2026, October 17, 2027, and October 17, 2028, subject to the continuing service of Mr. Feld on each vesting date, of which 2,610 RSUs vest within sixty days of the date hereof. Starboard Value LP /s/ Lorelei Martin 08/24/2026 STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD /s/ Lorelei Martin 08/24/2026 STARBOARD VALUE & OPPORTUNITY S LLC /s/ Lorelei Martin 08/24/2026 Starboard Value & Opportunity Master Fund L LP /s/ Lorelei Martin 08/24/2026 Starboard Value L LP /s/ Lorelei Martin 08/24/2026 Starboard Value R GP LLC /s/ Lorelei Martin 08/24/2026 Starboard X Master Fund Ltd /s/ Lorelei Martin 08/24/2026 Starboard Value GP LLC /s/ Lorelei Martin 08/24/2026 Starboard Principal Co LP /s/ Lorelei Martin 08/24/2026 Starboard Principal Co GP LLC /s/ Lorelei Martin 08/24/2026 Smith Jeffrey C /s/ Lorelei Martin 08/24/2026 Feld Peter A /s/ Lorelei Martin 08/24/2026