NEW YORK, Nov. 04, 2026 (GLOBE NEWSWIRE) — The law firm of\u00a0Kirby McInerney LLP<\/a> is investigating potential claims against Madrigal Pharmaceuticals, Inc. (\u201cMadrigal\u201d or the \u201cCompany\u201d) (NASDAQ: MDGL). The investigation concerns whether the Company and\/or members of its senior management may have violated federal securities laws or engaged in other unlawful business practices. If you purchased or otherwise acquired Madrigal securities, please contact Lauren Molinaro<\/a> of Kirby McInerney LLP<\/a> by email at investigations@kmllp.com<\/a>, or fill out the contact form below, to learn more about your rights.<\/p>\n [LEARN MORE ABOUT POTENTIAL SECURITIES FRAUD CLAIMS<\/a>]<\/p>\n What Happened?<\/strong><\/p>\n On November 3, 2026, Madrigal disclosed in its quarterly report on Form 10-Q that, on October 9, 2026, the Company\u2019s former Senior Vice President, Head of Clinical Development Dr. Michael Charlton filed a Whistleblower complaint against the Company. The complaint, filed in the U.S. District Court for the Northern District of Illinois, asserts that Charlton reported to Madrigal\u2019s Senior Executive Leadership \u201cadverse safety findings and unreproducible efficacy data\u201d for the Company\u2019s only approved drug, Rezdiffra. Specifically, \u201cOver the course of roughly eight months, Dr. Charlton repeatedly reported to Madrigal\u2019s most senior executives, including directly to Chief Executive Officer Bill Sibold, and Chief Medical Officer David Soergel, that Madrigal was suppressing adverse liver-injury data, presenting efficacy results that could not be reconciled with their own source data, and allowing an unblinded Board member, former Chief Medical Officer and major shareholder to control the adjudication of clinical outcomes.\u201d The complaint alleges that, in response to Charlton raising these concerns, Sibold told Charlton to \u201cstop looking,\u201d and when he did not, Charlton was stripped of his title and duties and forced to resign. On this news, the price of Madrigal shares declined by $34.84 per share, or approximately 8.1%, from $431.16 per share on November 2, 2026 to close at $396.32 on November 3, 2026.<\/p>\n What Should I Do?<\/strong><\/p>\n At this stage, no lawsuit has been filed. The investigation is ongoing to determine whether claims may be brought under federal securities laws.<\/p>\n If you purchased or otherwise acquired Madrigal securities, have information, or would like to learn more about this investigation, please contact Lauren Molinaro<\/a> of Kirby McInerney LLP<\/a> by email at investigations@kmllp.com<\/a>, or fill out the contact form below, to discuss your rights or interests with respect to these matters at no cost.<\/p>\n [LEARN MORE ABOUT YOUR RIGHTS AS AN INVESTOR<\/a>]<\/p>\n Kirby McInerney LLP<\/a> is a New York-based plaintiffs\u2019 law firm concentrating in securities, antitrust, whistleblower, and consumer litigation. The firm\u2019s efforts on behalf of shareholders in securities litigation have resulted in recoveries totaling billions of dollars. Additional information about the firm can be found on Kirby McInerney LLP\u2019s website<\/a>.<\/p>\n This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.<\/p>\n Contacts NEW YORK, Nov. 04, 2026 (GLOBE NEWSWIRE) — The law firm of\u00a0Kirby McInerney LLP is investigating potential claims against Madrigal Pharmaceuticals, Inc. (\u201cMadrigal\u201d or the \u201cCompany\u201d) (NASDAQ: MDGL). The investigation concerns whether the Company and\/or members of its senior management may have violated federal securities laws or engaged in other unlawful business practices. If you […]<\/p>\n","protected":false},"author":3,"featured_media":434300,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"fifu_image_url":"https:\/\/ml.globenewswire.com\/Resource\/Download\/192da1d1-643f-4eee-b850-dde5b9f2b00f","fifu_image_alt":"","footnotes":""},"categories":[57166],"tags":[],"class_list":["post-434299","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-globenewswire"],"acf":[],"_links":{"self":[{"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/posts\/434299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/comments?post=434299"}],"version-history":[{"count":0,"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/posts\/434299\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/media\/434300"}],"wp:attachment":[{"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/media?parent=434299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/categories?post=434299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dailybanglanewspapers.com\/news\/wp-json\/wp\/v2\/tags?post=434299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Kirby McInerney LLP\u00a0
Lauren Molinaro, Esq.
212-699-1171
https:\/\/www.kmllp.com<\/a>
https:\/\/securitiesleadplaintiff.com\/<\/a><\/u>
investigations@kmllp.com<\/a><\/p>\n\n <\/div>\n","protected":false},"excerpt":{"rendered":"