Sionna Therapeutics, Inc. · NASDAQ:SION
Ra Capital Management, L.P. sold 3,448,811 Sionna Therapeutics, Inc. shares (Form 4)
Traded Sep 17, 2026 · Filed Sep 21, 2026
On Sep 17, 2026, Ra Capital Management, L.P. (Director, 10% owner) sold 3,448,811 Sionna Therapeutics, Inc. shares at an average US$6.33 for US$21.8M, leaving 3,448,812 shares. Filed Sep 21, 2026 (Form 4).
- Sold
- 3,448,811 shares
- Price
- US$6.33 average (US$6.32 to US$7.46)
- Value
- US$21.8M
- Holding after
- 3,448,812 shares (held indirectly)
- Trading plan
- No
- Role
- Director, 10% owner
The filing in full
| Date | Security | Transaction | Shares | Price | Holding after | Ownership |
|---|---|---|---|---|---|---|
| Sep 17, 2026 | Common Stock | Sale | 3,415,011 | US$6.32 | 3,482,612 | Indirect |
| Sep 17, 2026 | Common Stock | Sale | 33,800 | US$7.46 | 3,448,812 | Indirect |
Source
Related
- Sionna Therapeutics, Inc.
- Ra Capital Management, L.P.
- Sionna Therapeutics, Inc. shareholders
- Schedule 13D/A · Ra Capital Management, L.P. · Sep 21, 2026
- Form 4 · Ridloff Elena · Sep 18, 2026
- Form 4 · McKee Charlotte · Sep 18, 2026
- Form 4 · Fitzpatrick Jennifer · Sep 18, 2026
- Form 4 · Cloonan Michael · Sep 18, 2026