{"id":10696,"date":"2026-08-17T03:45:00","date_gmt":"2026-08-16T20:45:00","guid":{"rendered":"https:\/\/www.globenewswire.com\/news-release\/2026\/08\/16\/3345792\/0\/en\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm.html3345792"},"modified":"2026-08-17T05:53:35","modified_gmt":"2026-08-16T22:53:35","slug":"sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm","status":"publish","type":"post","link":"https:\/\/cryptoinsider.asia\/vi\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\/","title":{"rendered":"SION INVESTOR ALERT: Investigation Launched into Sionna Therapeutics, Inc., Robbins Geller Rudman &amp; Dowd LLP Attorneys Encourage Investors and Potential Witnesses to Contact Law Firm"},"content":{"rendered":"\n<p>SAN DIEGO, Aug. 16, 2026 (GLOBE NEWSWIRE) &#8212; The law firm of&nbsp;<a href=\"https:\/\/www.globenewswire.com\/Tracker?data=i7rglb4iThkkcqWHY1knshL2lGOtz664gyyxr0edhQjahwPkzR1lSQyoBpNi2yT6ccPfp9Nf7gi9cstf3sEivyl2s4K2nFoRkwb4ZOCcoxMleC4lc3lexcK_vYllK-_uT0uVccOmuODej4IGQx7Ol4XDwORrY6sqz04f5T3TGv-hfuZWn4MfIns1JptP1QPt\" rel=\"nofollow\" target=\"_blank\" title><strong>Robbins Geller Rudman &amp; Dowd LLP<\/strong><\/a> is investigating potential violations of U.S. federal securities laws involving Sionna Therapeutics, Inc. (NASDAQ: SION).<\/p>\n<p><strong>If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here:<\/strong><\/p>\n<p><a href=\"https:\/\/www.globenewswire.com\/Tracker?data=0kEz-fGFJc0lqjwXpqBZznHvXOQSC6bZtPmsV3PS5UsJZOvv1jB6tIhtOCNY-Z7-kqX1z7D2ZLP31CDdZSsZghN4rMkMLrV8Y2uqBLIXAtzAJ9MezmVJOxhON8D4NDGcYgIWUdwIVwjqNCfN9eH0OjzCILPa1tVZ-OGAowDUZs1O10HvdzBgDrihvXcdYONquvGa8CtOS7og7BaL7VO6-KjskqXwekR1PcZ-PSokblrCiP_6aour13vqbvWPGoxI\" rel=\"nofollow\" target=\"_blank\" title><strong>https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html<\/strong><\/a><\/p>\n<p><strong>You can also contact attorneys <\/strong><a href=\"https:\/\/www.globenewswire.com\/Tracker?data=NBTt-WaZkNb_iZFmvRpnrifKZJXzvXpQRRRjHDMi_V_ihzUpb7ft8VcP7yix76sAgOUp7lxknCB2bLaNBBWZ_14liSVlkRDOT1ojf2Htk5l6TjYvSbu59h-5bTAPDIfOaKIMhzxXnzoqeDY9GqdFyNzQ3MQni8b5YiXBPYdnT5I=\" rel=\"nofollow\" target=\"_blank\" title><strong>Ken Dolitsky<\/strong><\/a><strong> or <\/strong><a href=\"https:\/\/www.globenewswire.com\/Tracker?data=SkaDi73alBlAJYdAKm4eKYk_yZzP_jsOBXTt7sGBWyKoOUJ-GQBVHVSLP-g3vo-Be_p0ew4EZfF0ydryxPdhCMG-DpUuIBko-7KwgA6kIwkqqIG-CjN0Vs4yMll5Z1J_zERXj-mRAJn0DDN3Pwy5EywK-bV0lSpSlEFmn88Eu3U=\" rel=\"nofollow\" target=\"_blank\" title><strong>Michael Albert<\/strong><\/a><strong> of Robbins Geller by calling 800\/851-7783 or via e-mail at <\/strong><a href=\"https:\/\/www.globenewswire.com\/Tracker?data=XAfF-geLEN38-_rCN3DRJOCL3Nganu2eotuaIQLSL4UHB75KgKvOCoAGVTmnx7CVLX0236Zlo02R9NZY0aJWi2q4yGuMcDI15GyCY3EZEVM=\" rel=\"nofollow\" target=\"_blank\" title><strong>info@rgrdlaw.com<\/strong><\/a><strong>.<\/strong><\/p>\n<p><strong>THE COMPANY: <\/strong>Sionna Therapeutics is a clinical-stage biopharmaceutical company that researches and develops medicines for the treatment of cystic fibrosis.<\/p>\n<p><strong>THE REVELATION: <\/strong>On August 10, 2026, Sionna Therapeutics announced that its \u201cSION-719 Phase 2a proof-of-concept trial did not achieve key activity endpoint of sweat chloride reduction when added to standard of care.\u201d On this news, the price of Sionna Therapeutics stock fell more than 91%.<\/p>\n<p><strong>ABOUT ROBBINS GELLER: <\/strong>Robbins Geller Rudman &amp; Dowd LLP is one of the world\u2019s leading law firms representing investors in securities fraud and shareholder rights litigation. Our Firm ranked #1 on the most recent ISS Securities Class Action Services Top 50 Report, recovering more than $916 million for investors in 2025. This marks our fourth #1 ranking in the past five years. And in those five years alone, Robbins Geller recovered $8.4 billion for investors \u2013 $3.4 billion more than any other law firm. With 200 lawyers in 10 offices, Robbins Geller is one of the largest plaintiffs\u2019 firms in the world, and the Firm\u2019s attorneys have obtained many of the largest securities class action recoveries in history, including the largest ever \u2013 $7.2 billion \u2013 in <em>In re Enron Corp. Sec. Litig.<\/em><\/p>\n<p>Past results do not guarantee future outcomes.&nbsp;<br \/>Services may be performed by attorneys in any of our offices.&nbsp;<\/p>\n<p>Contact:<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Robbins Geller Rudman &amp; Dowd LLP <br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ken Dolitsky<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Michael Albert<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;655 W. Broadway, Suite 1900, San Diego, CA 92101 <br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;800\/851-7783 <br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href=\"https:\/\/www.globenewswire.com\/Tracker?data=XAfF-geLEN38-_rCN3DRJIvpTc_lotfDJddrrLdTWkGXfllQFeTHUlipatC2m04zjs2qmBqyVsyXzLecnmiekJEsFtmvtDXbNdiZwL55y3g=\" rel=\"nofollow\" target=\"_blank\" title><strong>info@rgrdlaw.com<\/strong><\/a><\/p>\n<p><img decoding=\"async\" alt src=\"https:\/\/ml.globenewswire.com\/media\/ZmYwMzBkNDUtYjE5Yi00N2Y2LTg0MWUtYmNiNGNmNzVkNDkyLTExNDgxNTAtMjAyNi0wOC0xNi1lbg==\/tiny\/Robbins-Geller-Rudman-Dowd-LLP.png\" referrerpolicy=\"no-referrer-when-downgrade\">  <\/p>\n","protected":false},"excerpt":{"rendered":"<p> SAN DIEGO, Aug. 16, 2026 (GLOBE NEWSWIRE) &#8212; The law firm of\u00a0Robbins Geller Rudman &amp; Dowd LLP is investigating potential violations of U.S. federal securities laws involving Sionna Therapeutics, Inc. (NASDAQ: SION). If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here: https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html You can also contact attorneys Ken Dolitsky or Michael Albert of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":10697,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[75,1406],"tags":[],"class_list":["post-10696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business","category-globenewswire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SION INVESTOR ALERT: Investigation Launched into Sionna Therapeutics, Inc., Robbins Geller Rudman &amp; Dowd LLP Attorneys Encourage Investors and Potential Witnesses to Contact Law Firm<\/title>\n<meta name=\"description\" content=\"SAN DIEGO, Aug. 16, 2026 (GLOBE NEWSWIRE) -- The law firm of\u00a0Robbins Geller Rudman &amp; Dowd LLP is investigating potential violations of U.S. federal securities laws involving Sionna Therapeutics, Inc. (NASDAQ: SION). If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here: https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html You can also contact attorneys Ken Dolitsky or Michael Albert of...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SION INVESTOR ALERT: Investigation Launched into Sionna Therapeutics, Inc., Robbins Geller Rudman &amp; Dowd LLP Attorneys Encourage Investors and Potential Witnesses to Contact Law Firm\" \/>\n<meta property=\"og:description\" content=\"SAN DIEGO, Aug. 16, 2026 (GLOBE NEWSWIRE) -- The law firm of\u00a0Robbins Geller Rudman &amp; Dowd LLP is investigating potential violations of U.S. federal securities laws involving Sionna Therapeutics, Inc. 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If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here: https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html You can also contact attorneys Ken Dolitsky or Michael Albert of...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cryptoinsider.asia\/vi\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\/\" \/>\n<meta property=\"og:site_name\" content=\"Crypto Insider\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/yourcryptoinsider\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-16T20:45:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-16T22:53:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ml.globenewswire.com\/media\/ZmYwMzBkNDUtYjE5Yi00N2Y2LTg0MWUtYmNiNGNmNzVkNDkyLTExNDgxNTAtMjAyNi0wOC0xNi1lbg==\/tiny\/Robbins-Geller-Rudman-Dowd-LLP.png\" \/>\n<meta name=\"author\" content=\"Crypto Insider\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Crypto Insider\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/cryptoinsider.asia\\\/vi\\\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cryptoinsider.asia\\\/vi\\\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\\\/\"},\"author\":{\"name\":\"Crypto Insider\",\"@id\":\"https:\\\/\\\/cryptoinsider.asia\\\/#\\\/schema\\\/person\\\/e81ca31713268a414ddbed321d3383d6\"},\"headline\":\"SION INVESTOR ALERT: Investigation Launched into Sionna Therapeutics, Inc., Robbins Geller Rudman &amp; 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(NASDAQ: SION). If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here: https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html You can also contact attorneys Ken Dolitsky or Michael Albert of...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"SAN DIEGO, Aug. 16, 2026 (GLOBE NEWSWIRE) -- The law firm of\u00a0Robbins Geller Rudman &amp; Dowd LLP is investigating potential violations of U.S. federal securities laws involving Sionna Therapeutics, Inc. (NASDAQ: SION). If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here: https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html You can also contact attorneys Ken Dolitsky or Michael Albert of...","og_locale":"vi_VN","og_type":"article","og_title":"SION INVESTOR ALERT: Investigation Launched into Sionna Therapeutics, Inc., Robbins Geller Rudman &amp; Dowd LLP Attorneys Encourage Investors and Potential Witnesses to Contact Law Firm","og_description":"SAN DIEGO, Aug. 16, 2026 (GLOBE NEWSWIRE) -- The law firm of\u00a0Robbins Geller Rudman &amp; Dowd LLP is investigating potential violations of U.S. federal securities laws involving Sionna Therapeutics, Inc. (NASDAQ: SION). If you have information that could assist in the Sionna Therapeutics investigation or if you are a Sionna Therapeutics investor who suffered a loss and would like to learn more, you can provide your information here: https:\/\/www.rgrdlaw.com\/cases-sionna-therapeutics-inc-investigation-sion.html You can also contact attorneys Ken Dolitsky or Michael Albert of...","og_url":"https:\/\/cryptoinsider.asia\/vi\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\/","og_site_name":"Crypto Insider","article_publisher":"https:\/\/www.facebook.com\/yourcryptoinsider","article_published_time":"2026-08-16T20:45:00+00:00","article_modified_time":"2026-08-16T22:53:35+00:00","og_image":[{"url":"https:\/\/ml.globenewswire.com\/media\/ZmYwMzBkNDUtYjE5Yi00N2Y2LTg0MWUtYmNiNGNmNzVkNDkyLTExNDgxNTAtMjAyNi0wOC0xNi1lbg==\/tiny\/Robbins-Geller-Rudman-Dowd-LLP.png","type":"","width":"","height":""}],"author":"Crypto Insider","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Crypto Insider","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"2 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/cryptoinsider.asia\/vi\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\/#article","isPartOf":{"@id":"https:\/\/cryptoinsider.asia\/vi\/sion-investor-alert-investigation-launched-into-sionna-therapeutics-inc-robbins-geller-rudman-dowd-llp-attorneys-encourage-investors-and-potential-witnesses-to-contact-law-firm\/"},"author":{"name":"Crypto Insider","@id":"https:\/\/cryptoinsider.asia\/#\/schema\/person\/e81ca31713268a414ddbed321d3383d6"},"headline":"SION INVESTOR ALERT: Investigation Launched into Sionna Therapeutics, Inc., Robbins Geller Rudman &amp; 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