X0202 SCHEDULE 13G/A 0000921895-25-002222 0001730145 XXXXXXXX LIVE 2 Common stock, par value $0.001 per share 06/30/2026 0001288847 Five9, Inc. 338307101 3001 BISHOP DRIVE SUITE 350 SAN RAMON CA 94583 Rule 13d-1(c) Voss Value Master Fund, LP E9 700000.00 0.00 700000.00 0.00 700000.00 0.9 PN Voss Value-Oriented Special Situations Fund, LP DE 110826.00 0.00 110826.00 0.00 110826.00 0.1 PN Voss Advisors GP, LLC TX 810826.00 0.00 810826.00 0.00 810826.00 1.1 OO Voss Capital, LP TX 3985826.00 900000.00 3985826.00 900000.00 4885826.00 6.4 PN Cocke Travis W. X1 3985826.00 900000.00 3985826.00 900000.00 4885826.00 6.4 IN Five9, Inc. 3001 BISHOP DRIVE, SUITE 350, SAN RAMON, CALIFORNIA, 94583 The names of the persons filing this statement on Schedule 13G (collectively, the "Reporting Persons") are: 1. Voss Value Master Fund, L.P. ("Voss Value Master Fund"); 2. Voss Value-Oriented Special Situations Fund, L.P. ("Voss Value-Oriented Special Situations Fund"); 3. Voss Advisors GP, LLC ("Voss GP"); 4. Voss Capital, L.P. ("Voss Capital"); and 5. Travis W. Cocke. a) Voss Value Master Fund: 3773 Richmond, Suite 500 Houston, Texas 77046 b) Voss Value-Oriented Special Situations Fund: 3773 Richmond, Suite 500 Houston, Texas 77046 c) Voss GP: 3773 Richmond, Suite 500 Houston, Texas 77046 d) Voss Capital: 3773 Richmond, Suite 500 Houston, Texas 77046 e) Travis W. Cocke: 3773 Richmond, Suite 500 Houston, Texas 77046 a) Voss Value Master Fund: Cayman Islands b) Voss Value-Oriented Special Situations Fund: Delaware c) Voss GP: Texas d) Voss Capital: Texas e) Travis W. Cocke: USA Y As of the date hereof: a) Voss Value Master Fund beneficially owned 700,000 Ordinary Shares of the Issuer (the "Shares"). b) Voss Value-Oriented Special Situations Fund beneficially owned 110,826 Shares. c) Voss GP, as the general partner of Voss Value Master Fund and Voss Value-Oriented Special Situations Fund, may be deemed the beneficial owner of the (i) 700,000 Shares beneficially owned by Voss Value Master Fund and (ii) 110,826 Shares beneficially owned by Voss Value-Oriented Special Situations Fund. d) Voss Capital, as the investment manager of Voss Value Master Fund, Voss Value-Oriented Special Situations Fund and certain accounts managed by Voss Capital (the "Voss Managed Accounts"), may be deemed the beneficial owner of the (i) 700,000 Shares beneficially owned by Voss Value Master Fund, (ii) 110,826 Shares beneficially owned by Voss Value-Oriented Special Situations Fund and (iii) 4,075,000 Shares held in the Voss Managed Accounts. e) Mr. Cocke, as the managing member of each of Voss Capital and Voss GP, may be deemed the beneficial owner of the (i) 700,000 Shares owned by Voss Value Master Fund, (ii) 110,826 Shares beneficially owned by Voss Value-Oriented Special Situations Fund and (iii) 4,075,000 Shares held in the Voss Managed Accounts. The aggregate percentage of the Shares reported owned by each person named herein is based upon 76,563,988 Shares outstanding as of April 27, 2026, which is the total number of Shares outstanding as disclosed in the Issuer's Form 10Q filed with the Securities and Exchange Commission on April 30, 2026. As of the date hereof: (i) Voss Value Master Fund may be deemed to beneficially own approximately 0.9% of the outstanding Shares; (ii) Voss Value-Oriented Special Situations Fund may be deemed to beneficially own approximately 0.1% of the outstanding Shares; (iii) Voss GP may be deemed to beneficially own approximately 1.1% of the outstanding Shares; (iv) Voss Capital may be deemed to beneficially own approximately 6.4% of the outstanding Shares (approximately 5.3% of the outstanding Shares are held in the Voss Managed Accounts); and (v) Mr. Cocke may be deemed to beneficially own approximately 6.4% of the outstanding Shares. See Cover Pages Items 5-9. See Cover Pages Items 5-9. See Cover Pages Items 5-9. See Cover Pages Items 5-9. Y Y Y N See Exhibit 99.1 to the Schedule 13G filed with the Securities and Exchange Commission on August 13, 2025. Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Voss Value Master Fund, LP /s/ Travis W. Cocke 07/14/2026 Voss Value-Oriented Special Situations Fund, LP /s/ Travis W. Cocke 07/14/2026 Voss Advisors GP, LLC /s/ Travis W. Cocke 07/14/2026 Voss Capital, LP /s/ Travis W. Cocke 07/14/2026 Cocke Travis W. /s/ Travis W. Cocke 07/14/2026