Equity · Healthcare
SION
Sionna Therapeutics, Inc. · NasdaqGM
Reddit mentioned SION 11 times in the 30 days to 31 August 2026, in 1 of the communities we track. All of them were scored for sentiment: 55% read bullish, 0% bearish and 45% neither. Reddit data updated 31 August 2026.
The line runs $36 on 2 June through $6 on 28 August, on a scale from $0 to $60. Days the market did not trade hold the previous close, flat.
The chart above plots the price of SION over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 51 sessions over that window: $36 on 2 June 2026 through $6 on 28 August 2026.
Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Aug 31, 2026
SION · crowd attention × price
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Day19 Aug 2026
SION's busiest day for Reddit mentions was also its lowest close of the window — 7 mentions and $4 on 10 August
SION's busiest day for Reddit mentions was also its lowest close of the window — 7 mentions and $4 on 10 August
This chart in words
The chart plots daily Reddit mentions of SION over the 30 days to 31 August 2026: 11 in total, busiest on 10 August with 7, and 1 on the last day counted. Across this window the close ran between $4 on 10 August and $51.04 on 7 August. The line is the daily close over the same window: $49 on 2 August, $6 on 30 August. Of those days, 19 were trading sessions and the other 11 are hatched on the chart. On 8 of them no session took place, and the last close before it is carried forward rather than plotted; on 1 of them no session took place, and this window holds no earlier close to carry forward; on 2 of them we hold no close at all, which is a gap in our own record rather than a closure we can prove.
The chart plots daily Reddit mentions of SION over the 90 days to 31 August 2026: 13 in total, busiest on 10 August with 7, and 1 on the last day counted. Across this window the close ran between $4 on 10 August and $51.04 on 7 August. The line is the daily close over the same window: $36.70 on 3 June, $6 on 30 August. Of those days, 50 were trading sessions and the other 40 are hatched on the chart. On 28 of them no session took place, and the last close before it is carried forward rather than plotted; on 12 of them we hold no close at all, which is a gap in our own record rather than a closure we can prove.
Finazon · prior-day close, most closes dollar-rounded at the source
Crowd sentiment on SION · 30d
bullish
bullish
SION reads 1 point less bullish than overall market sentiment. Same measure; same 30-day window.
Where SION is discussed
(30d)SION insider trades
SION has no Form 4 filing in the last 90 days, so there is no summary for that window. The most recent filings we hold are below, the newest dated 22 January 2026.
Showing the 12 most recent of 32 open-market trades in this window. The figures above count all of them.
Compensation mechanics Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.
SION reported financials
SION reported net income of −$75.3M for the fiscal year ended 31 Dec 2025.
Source: SEC EDGAR XBRL company facts · latest period ended 30 Jun 2026
SION earnings
no date announced in SEC filings yet
Reported figures & scheduled dates · SEC EDGAR filings
SION institutional holders
8 of the 45 institutional funds we track reported a SION position for the quarter ended 30 Jun 2026 — a combined $229.0M; the latest of those filings landed 14 Aug 2026.
Source: SEC EDGAR 13F filings
SION fails-to-deliver
On 29 Jul 2026, 1,736 shares of SION failed to deliver (about $81K).
Source: SEC fails-to-deliver (CNS) data
SION — frequently asked questions
Is Reddit bullish or bearish on SION?
Across 11 classified SION mentions in the last 30 days, 55% read bullish, 0% bearish and 45% neutral. Crowd sentiment is a social signal, not investment advice.
When did SION last report earnings?
Sionna Therapeutics, Inc. (SION) last reported earnings on 30 Jun 2026 for Q2 2026, per SEC filings.
What exchange is SION listed on?
Sionna Therapeutics, Inc. trades on NASDAQ under the ticker SION.
Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.