Sionna Therapeutics, Inc. - Common Stock (SION)
7.3000
+0.1200 (1.67%)
NASDAQ· Last Trade: Sep 8th, 6:41 PM EDT
Detailed Quote
| Previous Close | 7.180 |
|---|---|
| Open | 7.130 |
| Bid | 7.270 |
| Ask | 7.300 |
| Day's Range | 6.890 - 7.555 |
| 52 Week Range | 4.010 - 54.97 |
| Volume | 884,669 |
| Market Cap | - |
| PE Ratio (TTM) | -0.0071 |
| EPS (TTM) | -1,030.9 |
| Dividend & Yield | N/A (N/A) |
| 1 Month Average Volume | 4,728,258 |
Chart
News & Press Releases
NEW YORK, Sept. 08, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Sionna Therapeutics, Inc. (“Sionna” or the “Company”) (NASDAQ: SION). Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · September 8, 2026

They could both outperform the market over the medium term, but one appears to have a clear edge.
Via The Motley Fool · September 4, 2026
Bragar Eagel & Squire, P.C. Litigation Partner Brandon Walker Encourages Investors Who Suffered Losses In Sionna Therapeutics (SION) To Contact Him Directly To Discuss Their Options
By Bragar Eagel & Squire · Via GlobeNewswire · September 2, 2026
NEW YORK, Sept. 01, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Sionna Therapeutics, Inc. (“Sionna” or the “Company”) (NASDAQ: SION). Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · September 1, 2026
NEW YORK, Aug. 25, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Sionna Therapeutics, Inc. (“Sionna” or the “Company”) (NASDAQ: SION). Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · August 25, 2026
Don't bet against Vertex Pharmaceuticals in cystic fibrosis.
Via The Motley Fool · August 20, 2026
The law firm of Robbins Geller Rudman & Dowd LLP is investigating potential violations of United States federal securities laws involving Sionna Therapeutics, Inc. (NASDAQ: SION).
By Robbins Geller Rudman & Dowd LLP · Via Business Wire · August 19, 2026
Glancy Prongay Wolke & Rotter LLP, a leading national shareholder rights law firm, today announced that it has commenced an investigation on behalf of Sionna Therapeutics, Inc. (“Sionna” or the “Company”) (NASDAQ: SION) investors concerning the Company’s possible violations of the federal securities laws.
By Glancy Prongay Wolke & Rotter LLP · Via Business Wire · August 18, 2026
Law Offices of Howard G. Smith announces an investigation on behalf of Sionna Therapeutics, Inc. (“Sionna” or the “Company”) (NASDAQ: SION) investors concerning the Company’s possible violations of federal securities laws.
By Law Offices of Howard G. Smith · Via Business Wire · August 18, 2026
The Law Offices of Frank R. Cruz announces an investigation of Sionna Therapeutics, Inc. (“Sionna” or the “Company”) (NASDAQ: SION) on behalf of investors concerning the Company’s possible violations of federal securities laws.
By The Law Offices of Frank R. Cruz · Via Business Wire · August 17, 2026
Shareholder rights law firm Robbins LLP is investigating Sionna Therapeutics (NASDAQ: SION) to determine whether certain Sionna Therapeutics officers and directors violated securities laws and breached fiduciary duties to shareholders.
By Robbins LLP · Via Business Wire · August 17, 2026
Schall, Brown & Schwartz LLP (“SBS”), a national shareholder rights litigation firm, announces that it is investigating claims on behalf of investors of Sionna Therapeutics, Inc. (“Sionna” or “the Company”) (NASDAQ: SION) for violations of the securities laws.
By Schall, Brown & Schwartz LLP · Via Business Wire · August 16, 2026
The drugmaker should significantly mitigate its most important risk as it develops new products.
Via The Motley Fool · August 14, 2026
Roughly 90% of Sionna Therapeutics (SION) market value was erased after the Company released Phase 2a PreciSION CF results for SION-719, representing a decline of approximately $40 per share from the stock’s recent trading levels. If you held SION shares and suffered a loss, you are encouraged to click here to submit your information. You may also contact Joseph E. Levi, Esq. via email at jlevi@levikorsinsky.com or by telephone at (212) 363-7500.
By Levi & Korsinsky, LLP · Via Business Wire · August 14, 2026
These stocks have an unusual volume in today's sessionchartmill.com
Via Chartmill · August 13, 2026
Gainers BioVie (NASDAQ:BIVI) shares increased by 39.4% to $1.77 during Wednesday's regular session. The market value of their outstanding shares is at $9.5 million. Sionna Therapeutics (NASDAQ:SION) shares rose
Via Benzinga · August 12, 2026
Sionna Therapeutics (NASDAQ:SION) said its PreciSION CF Phase 2a proof-of-concept study of SION-719 added to Trikafta did not meet its key activity endpoint, prompting the company to discontinue development of SION-719 as an add-on to standard of care for cystic fibrosis.
The company also reported
Via MarketBeat · August 11, 2026
SION-719 Phase 2a proof-of-concept trial did not achieve key activity endpoint of sweat chloride reduction when added to standard of care; Company is not advancing SION-719 as an add-on to standard of care
By Sionna Therapeutics, Inc. · Via GlobeNewswire · August 10, 2026
This risk is weighing on the stock.
Via The Motley Fool · August 7, 2026
PreciSION CF Phase 2a proof-of-concept trial evaluating NBD1 stabilizer SION-719 as an add-on to standard of care is on track for topline data summer of 2026
By Sionna Therapeutics, Inc. · Via GlobeNewswire · August 6, 2026
WALTHAM, Mass., May 27, 2026 (GLOBE NEWSWIRE) -- Sionna Therapeutics, Inc. (Nasdaq: SION), a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (CF), today announced that management will participate in the following upcoming investor events:
By Sionna Therapeutics, Inc. · Via GlobeNewswire · May 27, 2026
WALTHAM, Mass., May 13, 2026 (GLOBE NEWSWIRE) -- Sionna Therapeutics, Inc. (Nasdaq: SION), a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (CF), today announced that management will participate in a fireside chat at the 2026 RBC Capital Markets Global Healthcare Conference on Wednesday, May 20th, 2026, at 2:05 p.m. ET.
By Sionna Therapeutics, Inc. · Via GlobeNewswire · May 13, 2026
Enrollment completed in the PreciSION CF Phase 2a proof-of-concept trial evaluating NBD1 stabilizer SION-719 as an add-on to standard of care in participants with cystic fibrosis; topline data on track for the summer of 2026
By Sionna Therapeutics, Inc. · Via GlobeNewswire · May 12, 2026
This biotech innovator in cystic fibrosis therapies reported a notable insider sale amid a year of standout stock performance.
Via The Motley Fool · April 27, 2026
Topline data is on track for anticipated readout in the summer of 2026
By Sionna Therapeutics, Inc. · Via GlobeNewswire · April 27, 2026