Peter A. Thompson, Director at Sionna Therapeutics, Inc. (SION), sold 292,952 shares at $44.61 ($13.4M) on 2026-05-07, disclosed to the SEC on 2026-05-11.
Scheduled sale ($13.4M) 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.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $44.61 | 48,546 | $2.2M | 16.2% |
| 2 | $44.58 | 59,767 | $2.7M | 19.9% |
| 3 | $46.22 | 184,639 | $8.5M | 63.9% |
| Total | $45.62 avg | 292,952 | $13.4M | 100% |
| Filing → |
| SION | SELL | 2026-05-29 | $4K | — | Filing → |
| SION | SELL | 2026-04-21 | $2.5M | — | Filing → |
| SION | SELL | 2026-04-16 | $22.9M | — | Filing → |