$SION
Sionna Therapeutics, Inc. Common Stock
XNAS
Why is SION up today? It is at $50.06 (+5.75%), and our scanner flagged it 52 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment SION spikes, and full due diligence on SION — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $50.06
- Change today
- +5.75%
- Previous close
- $47.34
- 52-week range
- $16.87 – $51.91
- Market cap
- $2.14B
- Institutional own.
- 99.9%
- Total held
- 99.9%
- Tradeable float
- 45K 0% of shares · after 100% institutions
- Short interest
- 5.3M ▼ -5% vs prior · as of 2026-07-15
- Days to cover
- 11.5d
- Avg daily volume
- 356K
- Next earnings
- Aug 10 · in 4d
- Exchange
- XNAS
- 5m
- 2.8x
- 15m
- 1.8x
- 1h
- 0.6x
- 1D
- 0.1x
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Why is $SION up today?
Here is the latest on SION from our scanner (live price and day move above). Fresh from the SEC: Sionna Therapeutics, Inc. filed a Quarterly report (10-Q). A material company disclosure like this is often the real catalyst behind a move of this size.
Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →Analyst data via Nasdaq. Not investment advice.
Insiders
Insiders selling0 buys, 11 sells last 3 months (0/80 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Orbimed Advisors Llc Director | Sold (automatic/other) | -86K 0.2% of company | sold 3.4% | 2.47M | $3.9M at $44.86 | Jul 7, 26 |
Thompson Peter A. Director | Sold (automatic/other) | -86K 0.2% of company | sold 3.4% | 2.47M | $3.9M at $44.86 | Jul 7, 26 |
Fitzpatrick Jennifer Officer | Sold (automatic/other) | -10K 0.02% of company | n/a | n/a | $447K at $43.60 | Jul 6, 26 |
Fitzpatrick Jennifer Officer | Other | 10K 0.02% of company | n/a | 10K | $63K at $6.11 | Jul 6, 26 |
Orbimed Advisors Llc Director | Sold (automatic/other) | -116K 0.3% of company | sold 4.3% | 2.56M | $5.3M at $45.50 | Jun 30, 26 |
Thompson Peter A. Director | Sold (automatic/other) | -116K 0.3% of company | sold 4.3% | 2.56M | $5.3M at $45.50 | Jun 30, 26 |
Orbimed Advisors Llc Director | Sold (automatic/other) | -101 | sold <0.1% | 2.67M | $4K at $44.49 | May 27, 26 |
Thompson Peter A. Director | Sold (automatic/other) | -101 | sold <0.1% | 2.67M | $4K at $44.49 | May 27, 26 |
Orbimed Advisors Llc Director | Sold (automatic/other) | -185K 0.4% of company | sold 6.5% | 2.67M | $8.5M at $46.22 | May 11, 26 |
Thompson Peter A. Director | Sold (automatic/other) | -185K 0.4% of company | sold 6.5% | 2.67M | $8.5M at $46.22 | May 11, 26 |
Orbimed Advisors Llc Director | Sold (automatic/other) | -60K 0.1% of company | sold 2.0% | 2.86M | $2.7M at $44.58 | May 8, 26 |
Thompson Peter A. Director | Sold (automatic/other) | -60K 0.1% of company | sold 2.0% | 2.86M | $2.7M at $44.58 | May 8, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
$SION Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$SION Activity
News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.
SION stock FAQ
Why is $SION up today?
Here is the latest on SION from our scanner (live price and day move above). Fresh from the SEC: Sionna Therapeutics, Inc. filed a Quarterly report (10-Q). A material company disclosure like this is often the real catalyst behind a move of this size.
What is the SION stock price today?
SION last traded at $50.06, up 5.75% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
When does SION report earnings?
Sionna Therapeutics, Inc. Common Stock (SION) is next expected to report earnings on Monday, August 10, 2026, about 4 days away. Earnings reports often cause large overnight gaps, so many traders manage risk around the date. The date can shift until the company officially confirms it.
Where can I see live SION alerts?
The SION Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged SION 52 times in the last 30 days.
What exchange is SION on?
SION (Sionna Therapeutics, Inc. Common Stock) trades on XNAS, with a market cap of about $2.14B.
Is SION good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge SION for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.