Peter A. Thompson, Director at Sionna Therapeutics, Inc. (SION), sold 202,656 shares at $44.60 ($9.0M) on 2025-11-25, disclosed to the SEC on 2025-11-26.
Scheduled sale ($9.0M) by Director under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $44.54 | 94,583 | $4.2M | 46.7% |
| 2 | $44.54 | 94,583 | $4.2M | 46.7% |
| 3 | $44.60 | 11,890 | $530K | 5.9% |
| 4 | $44.49 | 1,600 | $71K | 0.8% |
| Total | $44.54 avg | 202,656 | $9.0M | 100% |
| Filing → |
| SION | SELL | 2026-05-29 | $4K | — | Filing → |
| SION | SELL | 2026-05-11 | $13.4M | — | Filing → |
| SION | SELL | 2026-04-21 | $2.5M | — | Filing → |