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SION · Sionna Therapeutics, Inc.

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$5.29 -0.23 (-4.17%) At close · Aug 21
Going-concern doubt — cleared Aug 6, 2026

The latest filing states the doubt was alleviated.

“The Company has evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern within one year after the date that these condensed consolidated financial statements are issued. The Company believes that its existing cash, cash equivalents and marketable securities of $268.3 million as of June 30, 2026, will be sufficient to allow the Company to fund operations beyond twelve months from the date that the financial statements are issued.”
View the 10-Q filed Aug 6, 2026
Market Cap
$261.33M
Shares
45.21M

Price & Indicators

Indicators
Price
Panels
Event markers
20d MA 50d MA 200d MA Earnings Filing Insider Congress Investor day
Close$5.29 Open$5.54 Day$5.27–5.72 52W close$4.50–51.04 Avg vol 30d3.1M Short int4.2M · 9.3% float · 6.8d Short vol40% Last earningsAug 6, 2026 DataFeb 2025–Aug 2026 Filing10-Q · Aug 6

Up next

Next earnings call
Oct 31, 2026 Est · unconfirmed · in 10 wks
FQ3-26 quarter ends
~Sep 30, 2026 Est
Latest filing: 10-Q
filed Aug 6, 2026

AI Brief

TL;DR.

Bullish
    Bearish

      AI-generated from the earnings call and 8-K · may contain errors · not investment advice

      Ask ALVIS about this →

      Equibles Rating

      blended score · not investment advice
      Overall
      Sell
      SellHoldBuy
      Technical Strong Sell Momentum Very Weak Sentiment Bullish Fundamentals Strong Quant / Vol Very High
      Market backdrop VIX 15.1 · calm Equity put/call 0.58
      Technical
      price trend
      Strong Sell
      50 / 200-day cross No cross
      Price vs 200-day avg −86%
      below
      Price vs 50-day avg −85%
      below
      RSI (14) 22
      oversold
      MACD trend Negative
      52-week position 2%
      near low
      Volume (OBV) Confirms
      volume backs price
      Momentum
      relative strength
      Very Weak
      1-month return −88%
      trailing
      6-month return −84%
      trailing
      YTD return −87%
      this year
      Relative strength −96%
      vs S&P · 6-mo
      Sentiment
      smart money
      Bullish
      Trend (MA cross) No cross
      50d $36 › 200d $39 — 200d above 50d
      Institutional flow Accumulating
      +23% holders QoQ · +38 funds added
      Insider flow Flat
      No net insider activity over 90 days
      Short interest Falling
      9.29% of float · ▼ -20.1% MoM · 6.8 days cover
      Volume signal Normal
      Volume near normal
      Institution breadth Multi-yr high
      150 holders — near 1-yr high, broad support
      Squeeze score 62
      elevated · 0–100
      Fundamentals
      Strong
      EPS growth +88%
      Y/Y
      Free cash flow $-66.7M
      Balance sheet $58.5M
      net cash
      Quant / Vol
      risk profile
      Very High
      Volatility 123%
      annualized · 1-yr
      Max drawdown −91%
      past year
      ATR 71.3%
      of price · 14-day

      Blended from price, momentum, positioning, fundamentals & volatility · daily-close · not investment advice. Market backdrop is context, not part of the score.

      Technicals

      trend & momentum for long-term holders Strong Sell
      4 · 3 · 0
      50 / 200-day cross
      No cross Neutral
      Price vs 200-day avg
      −86% Bearish
      Price vs 50-day avg
      −85% Bearish
      RSI (14)
      22 Neutral
      MACD trend
      Negative Bearish
      52-week position
      2% Bearish
      Volume (OBV)
      Confirms Neutral
      Market signals — smart money & positioning
      Bullish · 3 of 6
      Trend (MA cross) No cross
      50d $36 › 200d $39 — 200d above 50d
      Institutional flow Accumulating
      +23% holders QoQ · +38 funds added
      Insider flow Flat
      No net insider activity over 90 days
      Short interest Falling
      9.29% of float · ▼ -20.1% MoM · 6.8 days cover
      Volume signal Normal
      Volume near normal
      Institution breadth Multi-yr high
      150 holders — near 1-yr high, broad support
      Price context
      position in its 52-week range
      Range low $5 Now $5 · 2% Range high $51
      vs 200-day avg -86% vs 50-day avg -85%

      Illustrative technical + ownership context — a signal mix, not investment advice.

      Versus peers

      Biotechnology — same industry group
      Open screener →
      Company Mkt cap YTD Rev growth Y/Y P/E Short % shares
      SION
      Sionna Therapeutics, Inc.
      this stock
      		$261.33M -87.1% — — 9.3%
      VRTX
      Vertex Pharmaceuticals Inc / Ma
      		 $136.93B +20.9% +46.2% 31.5 1.6%
      REGN
      Regeneron Pharmaceuticals, Inc.
      		 $85.87B +8.1% +20.8% 20.7 3.3%
      ARGX
      Argenx SE
      		 $64.56B +23.6% — — 2.1%
      CSLLY
      Csl Ltd
      		 $58.31B — — — 0.0%

      Peers by industry group · P/E from as-reported trailing EPS · short % is of shares outstanding

      At a glance

      key data from every section
      Ownership
      Institutional Holders Accumulating
      Holders
      150
      % held
      106.8%
      Net QoQ
      +2.9M sh
      Top holder
      RA CAPITAL MANAGEMENT, L.…
      Held Float
      View
      Held by Funds
      Fund positions
      130
      View
      Short & Settlement
      Short Interest Falling
      Shares short
      4.2M
      Days to cover
      6.8d
      Change
      -1.1M sh
      View
      Short Volume
      Short vol %
      40%
      As of
      Aug 21, 2026
      Short Total
      View
      Fails to Deliver
      FTD shares
      1.7K
      Value
      $80.8K
      As of
      Jul 29, 2026
      View
      Off-Exchange
      Off-exchange %
      48.4%
      Week of
      Jul 13, 2026
      Off-exch Lit
      View
      Financials
      Financials
      Net income (FY)
      $-75.3M
      EPS diluted
      $-1.88
      View
      Filings
      SEC Filings
      Latest
      8-K
      Filed
      Aug 10, 2026
      This year
      12
      View
      Proposed Sales
      Value
      $450.9K
      Shares
      10.3K
      Filed
      Jul 6, 2026
      View
      Earnings & Events
      Earnings Calls
      Last call
      Aug 10, 2026
      View

      Performance

      5D 20D 120D MTD YTD
      SION -18.1% -88.4% -84.4% -88.8% -87.1%
      SPY -1.4% +3.6% +11.6% +2.5% +12.3%
      vs SPY -16.7% -92.1% -96.0% -91.3% -99.4%
      Key facts CIK 2036042 CUSIP 829401108 13F (30d) 145 filings 143 filers Visit website Investor relations

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