Peter Kolchinsky, Director, 10% Owner at Sionna Therapeutics, Inc. (SION), sold 37,925 shares at $39.50 ($1.5M) on 2025-11-21, disclosed to the SEC on 2025-11-24.
Open-market sale of $1.5M SION by Director, 10% Owner. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $39.89 | 150 | $6K | 0.4% |
| 2 | $39.89 | 801 | $32K | 2.1% |
| 3 | $39.89 | 947 | $38K | 2.5% |
| 4 | $39.89 | 1,235 | $49K | 3.3% |
| 5 | $40.50 | 96 | $4K | 0.3% |
| 6 | $40.50 | 512 |
| $21K |
| 1.4% |
| 7 | $40.50 | 604 | $24K | 1.6% |
| 8 | $40.50 | 788 | $32K | 2.1% |
| 9 | $39.50 | 1,210 | $48K | 3.2% |
| 10 | $39.50 | 6,440 | $254K | 16.9% |
| 11 | $39.50 | 7,609 | $301K | 20.0% |
| 12 | $39.50 | 7,609 | $301K | 20.0% |
| 13 | $39.50 | 9,924 | $392K | 26.1% |
| Total | $39.58 avg | 37,925 | $1.5M | 100% |
| Filing → |
| CDTX | BUY | 2025-06-30 | $100.0M | — | Filing → |
| TYRA | BUY | 2025-06-06 | $23.5M | — | Filing → |
| ETNB | BUY | 2025-02-03 | $100.0M | — | Filing → |