Sionna Therapeutics, Inc. (SION) Stock Price History
Historical prices from 2025 to 2026
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SION Historical Performance
Short-Term Returns
SION Stock Price Trajectory (2025–2026)
As of May 8, 2026, Sionna Therapeutics, Inc. (SION) trades at $43.31, representing a +236.3% return over the past year. The stock has delivered a +73.2% total return over five years (+11.6% CAGR), reflecting significant long-term value creation.
The stock reached its all-time high of $46.46 on April 17, 2026. From this peak, SION has corrected -6.8%, currently trading 25% above its 200-day moving average, indicating continued institutional support.
When compared to Healthcare sector peers VRTX (-2.3% 1Y), ABBV (+7.7% 1Y), and PTCT (+58.2% 1Y), SION has outperformed the peer group average. Compare SION vs VRTX →
SION Historical Price Data (2025–2026)
Showing 30 of 314 recordsLoading full history…
| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-05-07 | 43.35 | 45.33 | 42.41 | 43.31 | 776K | +0.05% |
| 2026-05-06 | 41.69 | 43.85 | 40.43 | 43.29 | 308K | +5.66% |
| 2026-05-05 | 42.68 | 43.73 | 40.42 | 40.97 | 320K | +1.29% |
| 2026-05-04 | 38.64 | 41.45 | 38.64 | 40.45 | 233K | +3.32% |
| 2026-05-01 | 38.66 | 40.27 | 38.07 | 39.15 | 206K | +1.16% |
| 2026-04-30 | 37.82 | 38.92 | 37.67 | 38.70 | 240K | +3.39% |
| 2026-04-29 | 39.01 | 40.30 | 36.50 | 37.43 | 280K | -5.46% |
| 2026-04-28 | 39.68 | 40.47 | 38.58 | 39.59 | 392K | +0.97% |
| 2026-04-27 | 38.02 | 42.21 | 37.97 | 39.21 | 619K | +2.89% |
| 2026-04-24 | 38.35 | 38.61 | 35.11 | 38.11 | 507K | -0.63% |
| 2026-04-23 | 43.08 | 44.12 | 37.80 | 38.35 | 445K | -11.23% |
| 2026-04-22 | 41.81 | 43.63 | 41.72 | 43.20 | 357K | +3.37% |
| 2026-04-21 | 43.01 | 43.41 | 41.34 | 41.79 | 350K | -1.99% |
| 2026-04-20 | 43.54 | 44.69 | 41.98 | 42.64 | 447K | -2.07% |
| 2026-04-17 | 46.13 | 46.46 | 43.31 | 43.54 | 507K | -3.76% |
| 2026-04-16 | 44.41 | 46.03 | 42.86 | 45.24 | 814K | +0.33% |
| 2026-04-15 | 44.23 | 46.04 | 42.71 | 45.09 | 766K | +4.13% |
| 2026-04-14 | 42.07 | 44.71 | 41.12 | 43.30 | 872K | +3.66% |
| 2026-04-13 | 38.03 | 41.84 | 36.91 | 41.77 | 383K | +10.24% |
| 2026-04-10 | 38.82 | 38.82 | 36.23 | 37.89 | 220K | -2.57% |
| 2026-04-09 | 36.75 | 40.04 | 36.73 | 38.89 | 331K | +5.25% |
| 2026-04-08 | 38.58 | 38.58 | 36.18 | 36.95 | 251K | +0.52% |
| 2026-04-07 | 37.43 | 38.60 | 35.39 | 36.76 | 363K | -1.66% |
| 2026-04-06 | 40.02 | 40.19 | 37.28 | 37.38 | 190K | -7.68% |
| 2026-04-02 | 41.14 | 42.59 | 40.19 | 40.49 | 515K | -1.91% |
| 2026-04-01 | 40.16 | 42.30 | 40.00 | 41.28 | 473K | +2.97% |
| 2026-03-31 | 37.49 | 41.61 | 37.49 | 40.09 | 585K | +9.36% |
| 2026-03-30 | 36.18 | 37.58 | 35.36 | 36.66 | 314K | +1.38% |
| 2026-03-27 | 36.66 | 38.22 | 36.01 | 36.16 | 496K | -4.74% |
| 2026-03-26 | 37.43 | 38.71 | 36.04 | 37.96 | 271K | +2.37% |
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Start ComparisonSION — Frequently Asked Questions
Quick answers to the most common questions about buying SION stock.
How has SION stock performed recently?
SION returned +236.3% over the past year, beating its 5-year annualized CAGR of +11.6%. The stock trades above its 200-day moving average, confirming the uptrend.
What is SION's all-time high price?
Sionna Therapeutics, Inc. reached $46.46 on 2026-04-17. The 52-week high is $46.46. Current 1-year return of +236.3% places the stock closer to historical peaks.
Where can I download SION historical price data?
This page provides SION daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2025-2026, downloadable in CSV format.