Ra Capital Management, L.p. sold $15M of SION
director, owner at Sionna Therapeutics, Inc.. 373,610 shares at an average of $39.51, traded Oct 24, 2025, filed Oct 28, 2025.
Score components
- +15RoleDirector
- +25Trade size$14.8M at market
- 0Share of holdings soldSold 5.4% of holdings
- +15Cluster3 insiders selling within 14 days
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.
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 0001231919-25-000364, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Oct 24, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -14,116 | $39.50 | $558k | 6,909,249 | Oct 28, 2025 |
| Oct 24, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -122,271 | $39.50 | $4.8M | 747,380 | Oct 28, 2025 |
| Oct 24, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -66,672 | $39.50 | $2.6M | 2,257,826 | Oct 28, 2025 |
| Oct 24, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -107,941 | $39.50 | $4.3M | 219,867 | Oct 28, 2025 |
| Oct 28, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -3,624 | $39.58 | $143k | 6,905,625 | Oct 28, 2025 |
| Oct 28, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -31,392 | $39.58 | $1.2M | 715,988 | Oct 28, 2025 |
| Oct 28, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -17,118 | $39.58 | $678k | 2,240,708 | Oct 28, 2025 |
| Oct 28, 2025 | SOpen-market sale Common Stockindirect: See footnotes | -10,476 | $39.58 | $415k | 209,391 | Oct 28, 2025 |
Related signals
Other insiders at Sionna Therapeutics, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 50Moderate | SIONsell Sionna Therapeutics, Inc. | Ra Capital Management, L.p. director, owner | $22M 3,448,811 shares | -50% | |
| 37Weak | SIONsell Sionna Therapeutics, Inc. | Tpg Gp A, LLC owner | $10M 250,000 shares | -4% | |
| 28Weak | Sionna Therapeutics, Inc. | Orbimed Advisors LLC director | $1.5M 33,356 shares | -1% | |
| 28Weak | Sionna Therapeutics, Inc. | Peter A. Thompson director | $1.5M 33,356 shares | -1% | |
| 19Weak | Sionna Therapeutics, Inc. | Orbimed Advisors LLC director | $83k 1,875 shares | -0% | |
| 19Weak | Sionna Therapeutics, Inc. | Peter A. Thompson director | $83k 1,875 shares | -0% | |
| 31Weak | Sionna Therapeutics, Inc. | Jennifer Fitzpatrick Chief Legal Officer | $415k 10,250 shares | -100% | |
| 35Weak | Sionna Therapeutics, Inc. | Orbimed Advisors LLC director | $4.8M 108,073 shares | -3% | |
| 35Weak | Sionna Therapeutics, Inc. | Peter A. Thompson director | $4.8M 108,073 shares | -3% | |
| 55Moderate | Sionna Therapeutics, Inc. | Ra Capital Management, L.p. director, owner | $1.2M 30,316 shares | -0% |
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.