X0202 SCHEDULE 13G/A 0000019617 XXXXXXXX LIVE 2 Common Stock, $0.001 par value 09/30/2026 0000914475 NEUROCRINE BIOSCIENCES, INC. 64125C109 6027 Edgewood Bend Court San Diego CA 92130 Rule 13d-1(b) JPMORGAN CHASE & CO. DE 4725485.0 22400.0 5294407.0 665.0 5300390.0 5.2 HC NEUROCRINE BIOSCIENCES, INC. 6027 Edgewood Bend Court San Diego CA 92130 JPMORGAN CHASE & CO. 270 Park Avenue,,New York, NY 10017 DE N HC 5300390 5.2 4725485 22400 5294407 665 Y N N Not Applicable N J.P. Morgan Trust Company of Delaware; J.P. Morgan Securities LLC; JPMorgan Asset Management (UK) Limited; JPMorgan Chase Bank, National Association; J.P. Morgan Investment Management Inc.; J.P. Morgan Mansart Management Limited; J.P. Morgan Wealth Management Solutions Inc.; 55I, LLC N Not Applicable N Not Applicable N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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. JPMORGAN CHASE & CO. Rachel Tsvaygoft 10/15/2026