Elena Ridloff, CFO & Head of Corporate Development at Sionna Therapeutics, Inc. (SION), sold 86,500 shares at $21.08 ($1.9M) on 2025-08-19, disclosed to the SEC on 2025-08-21.
Scheduled sale ($1.9M) 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 | $21.08 | 34,500 | $727K | 39.3% |
| 2 | $21.08 | 34,500 | $727K | 39.3% |
| 3 | $22.69 | 17,500 | $397K | 21.4% |
| Total | $21.41 avg | 86,500 | $1.9M | 100% |
| Filing → |
| SION | SELL | 2025-09-03 | $462K | — | Filing → |
| SION | SELL | 2025-08-28 | $1.1M | — | Filing → |
| KYMR | SELL | 2025-06-11 | $225K | — | Filing → |