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sellModerate cluster of 3

Ra Capital Management, L.p. sold $1.2M of SION

director, owner at Sionna Therapeutics, Inc.. 30,316 shares at an average of $39.61, traded Nov 20, 2025, filed Nov 24, 2025.

Warning score
55
Value
$1.2M
30,316 shares
Holdings after
159,033
-0% from before
From 52-week low
+408%
low $7.66, close $38.94
From 52-week high
-8%
high $42.50, as of Nov 20, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $1.2M at market
    +25
  • Share of holdings sold
    Sold 0.4% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -0.8%, 3m -18.7%, 6m -7.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

SIONOct 12, 2026 · close 4.69
Since filing Nov 24, 2025: -89.4%SPY +17.6% · excess -107.0%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001231919-25-000547, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-150$39.89$5,9846,898,929Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-1,235$39.89$49k661,019Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-801$39.89$32k2,205,034Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-947$39.89$38k167,246Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-96$40.50$3,8886,898,833Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-788$40.50$32k660,231Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-512$40.50$21k2,204,522Nov 24, 2025
Nov 20, 2025SOpen-market sale
Common Stockindirect: See footnotes
-604$40.50$24k166,642Nov 24, 2025
Nov 21, 2025SOpen-market sale
Common Stockindirect: See footnotes
-1,210$39.50$48k6,897,623Nov 24, 2025
Nov 21, 2025SOpen-market sale
Common Stockindirect: See footnotes
-9,924$39.50$392k650,307Nov 24, 2025
Nov 21, 2025SOpen-market sale
Common Stockindirect: See footnotes
-6,440$39.50$254k2,198,082Nov 24, 2025
Nov 21, 2025SOpen-market sale
Common Stockindirect: See footnotes
-7,609$39.50$301k159,033Nov 24, 2025

Related signals

Other insiders at Sionna Therapeutics, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
50Moderate
SIONsell
Sionna Therapeutics, Inc.
Ra Capital Management, L.p.
director, owner
$22M
3,448,811 shares
-50%
35Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$3.9M
85,918 shares
-3%
35Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Peter A. Thompson
director
$3.9M
85,918 shares
-3%
32Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Jennifer Fitzpatrick
Chief Legal Officer
$447k
10,250 shares
-100%
35Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$5.3M
115,844 shares
-4%
35Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Peter A. Thompson
director
$5.3M
115,844 shares
-4%
3Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$4,493
101 shares
-0%
3Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Peter A. Thompson
director
$4,493
101 shares
-0%
28Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$13M
292,952 shares
-10%
28Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Peter A. Thompson
director
$13M
292,952 shares
-10%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Ra Capital Management, L.p. sold $1.2M of SION | InsiderTell