Elena Ridloff, CFO & Head of Corporate Development at Sionna Therapeutics, Inc. (SION), sold 43,132 shares at $25.10 ($1.1M) on 2025-08-27, disclosed to the SEC on 2025-08-28.
Scheduled sale ($1.1M) by CFO & Head of Corporate Development 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 | $25.13 | 3,700 | $93K | 8.4% |
| 2 | $25.10 | 3,618 | $91K | 8.2% |
| 3 | $25.10 | 3,618 | $91K | 8.2% |
| 4 | $25.97 | 16,098 | $418K | 37.6% |
| 5 | $25.97 | 16,098 | $418K | 37.6% |
| Total | $25.75 avg | 43,132 |
| $1.1M |
| 100% |
| Filing → |
| SION | SELL | 2025-09-03 | $462K | — | Filing → |
| SION | SELL | 2025-08-21 | $1.9M | — | Filing → |
| KYMR | SELL | 2025-06-11 | $225K | — | Filing → |