Skip to content
sellModerate cluster of 3

Ra Capital Management, L.p. sold $5.5M of SION

director, owner at Sionna Therapeutics, Inc.. 136,351 shares at an average of $40.34, traded Nov 17, 2025, filed Nov 19, 2025.

Warning score
55
Value
$5.5M
136,351 shares
Holdings after
168,193
-2% from before
From 52-week low
+421%
low $7.66, close $39.93
From 52-week high
-6%
high $42.50, as of Nov 17, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $5.5M at market
    +25
  • Share of holdings sold
    Sold 2.0% 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.

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 9, 2026 · close 4.90
Since filing Nov 19, 2025: -87.2%SPY +18.8% · excess -106.0%

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 0001231919-25-000527, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-2,182$40.20$88k6,903,443Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-17,913$40.20$720k698,075Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-11,626$40.20$467k2,229,082Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-13,734$40.20$552k195,657Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-1,701$41.05$70k6,901,742Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-13,964$41.05$573k684,111Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-9,063$41.05$372k2,220,019Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-10,707$41.05$440k184,950Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-53$42.10$2,2316,901,689Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-433$42.10$18k683,678Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-280$42.10$12k2,219,739Nov 19, 2025
Nov 17, 2025SOpen-market sale
Common Stockindirect: See footnotes
-331$42.10$14k184,619Nov 19, 2025
Nov 18, 2025SOpen-market sale
Common Stockindirect: See footnotes
-332$39.57$13k6,901,357Nov 19, 2025
Nov 18, 2025SOpen-market sale
Common Stockindirect: See footnotes
-2,728$39.57$108k680,950Nov 19, 2025
Nov 18, 2025SOpen-market sale
Common Stockindirect: See footnotes
-1,770$39.57$70k2,217,969Nov 19, 2025
Nov 18, 2025SOpen-market sale
Common Stockindirect: See footnotes
-2,092$39.57$83k182,527Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-2,276$40.01$91k6,899,081Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-18,684$40.01$748k662,266Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-12,126$40.01$485k2,205,843Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-14,325$40.01$573k168,202Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-2$40.61$816,899,079Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-12$40.61$487662,254Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-8$40.61$3252,205,835Nov 19, 2025
Nov 19, 2025SOpen-market sale
Common Stockindirect: See footnotes
-9$40.61$365168,193Nov 19, 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%
15Weak
SIONsell10b5-1
Sionna Therapeutics, Inc.
Jennifer Fitzpatrick
Chief Legal Officer
$347k
10,250 shares
-100%
28Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$1.4M
30,953 shares
-1%
45Moderate
SIONsell 2
Sionna Therapeutics, Inc.
Tpg Gp A, LLC
owner
$10M
250,000 shares
-4%
28Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$1.5M
33,356 shares
-1%
28Weak
SIONsell 210b5-1
Sionna Therapeutics, Inc.
Peter A. Thompson
director
$1.5M
33,356 shares
-1%
19Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$83k
1,875 shares
-0%
19Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Peter A. Thompson
director
$83k
1,875 shares
-0%
31Weak
SIONsell 310b5-1
Sionna Therapeutics, Inc.
Jennifer Fitzpatrick
Chief Legal Officer
$415k
10,250 shares
-100%
35Weak
SIONsell 410b5-1
Sionna Therapeutics, Inc.
Orbimed Advisors LLC
director
$4.8M
108,073 shares
-3%

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 $5.5M of SION | InsiderTell