CIK 0002036042 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company
Sionna Therapeutics, Inc.
Sign in to watch- Ticker
- SION
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- Phone
- 617-819-2020
- Business address
- 21 HICKORY DRIVE, SUITE 500, WALTHAM, MA, 02451
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $21,835,018
- in 1 filing
Net −$21,835,018. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2025-11-19 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −8 | $40.61 | $325 | 2,205,835 |
| 2025-11-19 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −9 | $40.61 | $365 | 168,193 |
| 2025-11-18 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −332 | $39.57 | $13K | 6,901,357 |
| 2025-11-18 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −2,728 | $39.57 | $108K | 680,950 |
| 2025-11-18 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −1,770 | $39.57 | $70K | 2,217,969 |
| 2025-11-18 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −2,092 | $39.57 | $83K | 182,527 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −2,182 | $40.20 | $88K | 6,903,443 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −17,913 | $40.20 | $720K | 698,075 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −11,626 | $40.20 | $467K | 2,229,082 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −13,734 | $40.20 | $552K | 195,657 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −1,701 | $41.05 | $70K | 6,901,742 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −13,964 | $41.05 | $573K | 684,111 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −9,063 | $41.05 | $372K | 2,220,019 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −10,707 | $41.05 | $440K | 184,950 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −53 | $42.10 | $2K | 6,901,689 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −433 | $42.10 | $18K | 683,678 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −280 | $42.10 | $12K | 2,219,739 |
| 2025-11-17 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −331 | $42.10 | $14K | 184,619 |
| 2025-10-28 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −3,624 | $39.58 | $143K | 6,905,625 |
| 2025-10-28 | RA CAPITAL MANAGEMENT, L.P. Director | Sale | −31,392 | $39.58 | $1.2M | 715,988 |
Page 6 of 15 · 284 trades