Nasdaq · Common stock
Sionna Therapeutics (SION)
$3.69 +$0.09 (+2.50%)
- Day’s range
- $3.57–$3.74
- Volume
- 614,221
SION price history
SION closed at $3.69 on Oct. 26, 2026. Over the past year, its daily close ranged from $3.60 on Oct. 23, 2026 to $51.04 on Aug. 7, 2026.
Data table: SION daily closes, the past year
| Date | Close |
|---|---|
| Oct. 26, 2026 | $3.69 |
| Oct. 23, 2026 | $3.60 |
| Oct. 22, 2026 | $3.80 |
| Oct. 21, 2026 | $3.87 |
| Oct. 20, 2026 | $4.15 |
| Oct. 19, 2026 | $4.01 |
| Oct. 16, 2026 | $3.89 |
| Oct. 15, 2026 | $4.08 |
| Oct. 14, 2026 | $4.09 |
| Oct. 13, 2026 | $4.38 |
| Oct. 12, 2026 | $4.69 |
| Oct. 9, 2026 | $4.90 |
| Oct. 8, 2026 | $4.90 |
| Oct. 7, 2026 | $4.82 |
| Oct. 6, 2026 | $4.75 |
| Oct. 5, 2026 | $4.85 |
| Oct. 2, 2026 | $4.91 |
| Oct. 1, 2026 | $5.10 |
| Sept. 30, 2026 | $5.26 |
| Sept. 29, 2026 | $5.15 |
| Sept. 28, 2026 | $5.12 |
| Sept. 25, 2026 | $5.23 |
| Sept. 24, 2026 | $5.23 |
| Sept. 23, 2026 | $5.51 |
| Sept. 22, 2026 | $6.02 |
| Sept. 21, 2026 | $6.00 |
| Sept. 18, 2026 | $5.96 |
| Sept. 17, 2026 | $7.18 |
| Sept. 16, 2026 | $7.04 |
| Sept. 15, 2026 | $6.88 |
| Sept. 14, 2026 | $8.26 |
| Sept. 11, 2026 | $7.85 |
| Sept. 10, 2026 | $7.62 |
| Sept. 9, 2026 | $7.48 |
| Sept. 8, 2026 | $7.30 |
| Sept. 4, 2026 | $7.18 |
| Sept. 3, 2026 | $6.75 |
| Sept. 2, 2026 | $7.31 |
| Sept. 1, 2026 | $6.46 |
| Aug. 31, 2026 | $6.03 |
| Aug. 28, 2026 | $5.87 |
| Aug. 27, 2026 | $6.06 |
| Aug. 26, 2026 | $6.17 |
| Aug. 25, 2026 | $6.25 |
| Aug. 24, 2026 | $5.59 |
| Aug. 21, 2026 | $5.29 |
| Aug. 20, 2026 | $5.52 |
| Aug. 19, 2026 | $6.25 |
| Aug. 18, 2026 | $5.94 |
| Aug. 17, 2026 | $5.91 |
| Aug. 14, 2026 | $6.46 |
| Aug. 13, 2026 | $6.54 |
| Aug. 12, 2026 | $6.25 |
| Aug. 11, 2026 | $5.10 |
| Aug. 10, 2026 | $4.50 |
| Aug. 7, 2026 | $51.04 |
| Aug. 6, 2026 | $49.61 |
| Aug. 5, 2026 | $47.34 |
| Aug. 4, 2026 | $49.94 |
| Aug. 3, 2026 | $49.26 |
| July 31, 2026 | $47.13 |
| July 30, 2026 | $46.78 |
| July 29, 2026 | $44.81 |
| July 28, 2026 | $46.55 |
| July 27, 2026 | $45.38 |
| July 24, 2026 | $45.70 |
| July 23, 2026 | $44.06 |
| July 22, 2026 | $45.03 |
| July 21, 2026 | $47.21 |
| July 20, 2026 | $45.69 |
| July 17, 2026 | $49.41 |
| July 16, 2026 | $45.29 |
| July 15, 2026 | $44.38 |
| July 14, 2026 | $42.59 |
| July 13, 2026 | $43.95 |
| July 10, 2026 | $45.29 |
| July 9, 2026 | $44.94 |
| July 8, 2026 | $44.00 |
| July 7, 2026 | $44.93 |
| July 6, 2026 | $43.12 |
| July 2, 2026 | $43.99 |
| July 1, 2026 | $41.64 |
| June 30, 2026 | $43.99 |
| June 29, 2026 | $42.97 |
| June 26, 2026 | $42.18 |
| June 25, 2026 | $42.77 |
| June 24, 2026 | $41.09 |
| June 23, 2026 | $39.87 |
| June 22, 2026 | $38.83 |
| June 18, 2026 | $37.30 |
| June 17, 2026 | $36.73 |
| June 16, 2026 | $34.75 |
| June 15, 2026 | $36.00 |
| June 12, 2026 | $35.92 |
| June 11, 2026 | $36.05 |
| June 10, 2026 | $34.03 |
| June 9, 2026 | $33.69 |
| June 8, 2026 | $33.51 |
| June 5, 2026 | $35.37 |
| June 4, 2026 | $37.78 |
| June 3, 2026 | $36.70 |
| June 2, 2026 | $36.48 |
| June 1, 2026 | $40.90 |
| May 29, 2026 | $42.82 |
| May 28, 2026 | $42.80 |
| May 27, 2026 | $43.43 |
| May 26, 2026 | $42.88 |
| May 22, 2026 | $41.13 |
| May 21, 2026 | $41.75 |
| May 20, 2026 | $39.50 |
| May 19, 2026 | $37.68 |
| May 18, 2026 | $39.24 |
| May 15, 2026 | $40.22 |
| May 14, 2026 | $42.77 |
| May 13, 2026 | $43.12 |
| May 12, 2026 | $40.94 |
| May 11, 2026 | $45.95 |
| May 8, 2026 | $44.23 |
| May 7, 2026 | $43.31 |
| May 6, 2026 | $43.29 |
| May 5, 2026 | $40.97 |
| May 4, 2026 | $40.45 |
| May 1, 2026 | $39.15 |
| April 30, 2026 | $38.70 |
| April 29, 2026 | $37.43 |
| April 28, 2026 | $39.59 |
| April 27, 2026 | $39.21 |
| April 24, 2026 | $38.11 |
| April 23, 2026 | $38.35 |
| April 22, 2026 | $43.20 |
| April 21, 2026 | $41.79 |
| April 20, 2026 | $42.64 |
| April 17, 2026 | $43.54 |
| April 16, 2026 | $45.24 |
| April 15, 2026 | $45.09 |
| April 14, 2026 | $43.30 |
| April 13, 2026 | $41.77 |
| April 10, 2026 | $37.89 |
| April 9, 2026 | $38.89 |
| April 8, 2026 | $36.95 |
| April 7, 2026 | $36.76 |
| April 6, 2026 | $37.38 |
| April 2, 2026 | $40.49 |
| April 1, 2026 | $41.30 |
| March 31, 2026 | $40.09 |
| March 30, 2026 | $36.66 |
| March 27, 2026 | $36.16 |
| March 26, 2026 | $37.96 |
| March 25, 2026 | $37.08 |
| March 24, 2026 | $34.76 |
| March 23, 2026 | $36.43 |
| March 20, 2026 | $36.39 |
| March 19, 2026 | $35.49 |
| March 18, 2026 | $34.40 |
| March 17, 2026 | $35.84 |
| March 16, 2026 | $37.17 |
| March 13, 2026 | $37.32 |
| March 12, 2026 | $36.68 |
| March 11, 2026 | $38.38 |
| March 10, 2026 | $38.08 |
| March 9, 2026 | $37.53 |
| March 6, 2026 | $35.93 |
| March 5, 2026 | $34.56 |
| March 4, 2026 | $34.57 |
| March 3, 2026 | $34.09 |
| March 2, 2026 | $33.92 |
| Feb. 27, 2026 | $36.54 |
| Feb. 26, 2026 | $38.00 |
| Feb. 25, 2026 | $38.03 |
| Feb. 24, 2026 | $37.32 |
| Feb. 23, 2026 | $36.10 |
| Feb. 20, 2026 | $35.49 |
| Feb. 19, 2026 | $37.34 |
| Feb. 18, 2026 | $37.73 |
| Feb. 17, 2026 | $38.03 |
| Feb. 13, 2026 | $37.52 |
| Feb. 12, 2026 | $37.64 |
| Feb. 11, 2026 | $36.53 |
| Feb. 10, 2026 | $38.02 |
| Feb. 9, 2026 | $36.82 |
| Feb. 6, 2026 | $36.11 |
| Feb. 5, 2026 | $35.25 |
| Feb. 4, 2026 | $41.32 |
| Feb. 3, 2026 | $44.48 |
| Feb. 2, 2026 | $43.65 |
| Jan. 30, 2026 | $42.26 |
| Jan. 29, 2026 | $42.44 |
| Jan. 28, 2026 | $42.13 |
| Jan. 27, 2026 | $43.40 |
| Jan. 26, 2026 | $42.60 |
| Jan. 23, 2026 | $42.38 |
| Jan. 22, 2026 | $41.77 |
| Jan. 21, 2026 | $40.79 |
| Jan. 20, 2026 | $40.01 |
| Jan. 16, 2026 | $39.11 |
| Jan. 15, 2026 | $38.85 |
| Jan. 14, 2026 | $41.18 |
| Jan. 13, 2026 | $36.81 |
| Jan. 12, 2026 | $36.34 |
| Jan. 9, 2026 | $39.25 |
| Jan. 8, 2026 | $36.60 |
| Jan. 7, 2026 | $43.21 |
| Jan. 6, 2026 | $37.22 |
| Jan. 5, 2026 | $40.85 |
| Jan. 2, 2026 | $39.21 |
| Dec. 31, 2025 | $41.14 |
| Dec. 30, 2025 | $41.39 |
| Dec. 29, 2025 | $42.81 |
| Dec. 26, 2025 | $43.70 |
| Dec. 24, 2025 | $44.03 |
| Dec. 23, 2025 | $43.44 |
| Dec. 22, 2025 | $42.42 |
| Dec. 19, 2025 | $42.37 |
| Dec. 18, 2025 | $44.21 |
| Dec. 17, 2025 | $43.09 |
| Dec. 16, 2025 | $42.89 |
| Dec. 15, 2025 | $42.76 |
| Dec. 12, 2025 | $42.77 |
| Dec. 11, 2025 | $41.72 |
| Dec. 10, 2025 | $41.21 |
| Dec. 9, 2025 | $41.59 |
| Dec. 8, 2025 | $40.72 |
| Dec. 5, 2025 | $40.29 |
| Dec. 4, 2025 | $40.88 |
| Dec. 3, 2025 | $41.16 |
| Dec. 2, 2025 | $39.01 |
| Dec. 1, 2025 | $38.96 |
| Nov. 28, 2025 | $43.57 |
| Nov. 26, 2025 | $43.79 |
| Nov. 25, 2025 | $44.28 |
| Nov. 24, 2025 | $44.38 |
| Nov. 21, 2025 | $43.66 |
| Nov. 20, 2025 | $38.94 |
| Nov. 19, 2025 | $38.41 |
| Nov. 18, 2025 | $39.12 |
| Nov. 17, 2025 | $39.93 |
| Nov. 14, 2025 | $37.00 |
| Nov. 13, 2025 | $35.88 |
| Nov. 12, 2025 | $36.58 |
| Nov. 11, 2025 | $36.46 |
| Nov. 10, 2025 | $35.77 |
| Nov. 7, 2025 | $34.71 |
| Nov. 6, 2025 | $34.40 |
| Nov. 5, 2025 | $35.08 |
| Nov. 4, 2025 | $35.64 |
| Nov. 3, 2025 | $36.06 |
| Oct. 31, 2025 | $38.21 |
| Oct. 30, 2025 | $38.01 |
| Oct. 29, 2025 | $37.52 |
| Oct. 28, 2025 | $39.45 |
| Oct. 27, 2025 | $38.33 |
Key figures
- 52-week range
- $3.60–$51.04Low Oct. 23, 2026; high Aug. 7, 2026
- Average daily volume
- 2.3MPast 3 months
- Market value
- $166.8M
- Dividend yield
- —
- From 52-week high
- −92.77%
Price change
- 1 month
- −29.45%
- 3 months
- −91.93%
- Year to date
- −91.03%
- 1 year
- −90.59%
$1,000 a year ago
$1,000 put into SION at the close on Oct. 24, 2025 would be worth $94.
Price only, dividends not included.
What Wall Street says about SION
In the past 90 days, Wall Street firms published 5 rating or price-target actions on SION: 3 downgrades and 2 raised price targets.
| Action | Rating | |||
|---|---|---|---|---|
| Wedbush | Raises target | Neutral | $5 to $6 | |
| Guggenheim | Downgrade | Buy to Neutral | — | |
| Wedbush | Downgrade | Outperform to Neutral | $53 to $5 | |
| BTIG | Downgrade | Buy to Neutral | — | |
| Guggenheim | Raises target | Buy | $50 to $60 |
Ratings and price targets are the firms’ own opinions, reported as published.
Not investment advice.
About Sionna Therapeutics, Inc. Common Stock
Sionna Therapeutics Inc is a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (CF) patients by developing novel medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein to deliver clinically meaningful benefits to CF patients. CF is a progressive and life-threatening genetic disease caused by inherited mutations in the CFTR gene, which heads to insufficient CFTR function. The Company is managed as one operating segment focused on the research and development of cystic fibrosis therapies.
- Headquarters
- Waltham, Mass.
- Employees
- 59
- Listed
- Feb. 7, 2025
- Sector
- Health care
- Industry
- Pharmaceutical preparations
In WallStreetDigest editions
No WallStreetDigest article about SION is on the site yet.