Peter A. Thompson, Director at Sionna Therapeutics, Inc. (SION), sold 85,918 shares at $44.86 ($3.9M) on 2026-07-07, disclosed to the SEC on 2026-07-09.
Scheduled sale ($3.9M) by Director under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| Filing → |
| SION | SELL | 2026-05-11 | $13.4M | — | Filing → |
| SION | SELL | 2026-04-21 | $2.5M | — | Filing → |
| SION | SELL | 2026-04-16 | $22.9M | — | Filing → |