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Insider ActivitySION
Thompson Peter A., Director at Sionna Therapeutics, Inc., sold $2.1M of SION
Updated Jun 10, 2026
Thompson Peter A.
Director
Sionna Therapeutics, Inc. ·
$SION
Transaction Details
| Insider | Thompson Peter A. |
|---|---|
| Title | Director |
| Company | Sionna Therapeutics, Inc. |
| Ticker | SION |
| Transaction Type | Sale |
| Transaction Date | 2026-04-14 |
| Shares Traded | 47,814 |
| Price Per Share | $44.51 |
| Total Value | $2.1M |
| Filed Date | 2026-04-16 |
| Accession Number | 0000947871-26-000447 |
Ownership Context
| Shares Owned After Transaction | 3,482,888 |
|---|---|
| Ownership Type | Indirect |
SEC Filing
Accession: 0000947871-26-000447
Other Insider Trades — SION
| Insider | Title | Action | Value | Date |
|---|---|---|---|---|
| Thompson Peter A. | Director | sold | $4K | 2026-05-27 |
| ORBIMED ADVISORS LLC | Director | sold | $4K | 2026-05-27 |
| ORBIMED ADVISORS LLC | Director | sold | $8.5M | 2026-05-11 |
| Thompson Peter A. | Director | sold | $8.5M | 2026-05-11 |
| Thompson Peter A. | Director | sold | $2.7M | 2026-05-08 |
| ORBIMED ADVISORS LLC | Director | sold | $2.7M | 2026-05-08 |
| Thompson Peter A. | Director | sold | $2.2M | 2026-05-07 |
| ORBIMED ADVISORS LLC | Director | sold | $2.2M | 2026-05-07 |
| Thompson Peter A. | Director | sold | $131K | 2026-04-18 |
| ORBIMED ADVISORS LLC | Director | sold | $131K | 2026-04-18 |
Other Trades by Thompson Peter A.
| Ticker | Company | Action | Value | Date |
|---|---|---|---|---|
| SION | Sionna Therapeutics, Inc. | sold | $4K | 2026-05-27 |
| SION | Sionna Therapeutics, Inc. | sold | $8.5M | 2026-05-11 |
| SION | Sionna Therapeutics, Inc. | sold | $2.7M | 2026-05-08 |
| SION | Sionna Therapeutics, Inc. | sold | $2.2M | 2026-05-07 |
| SION | Sionna Therapeutics, Inc. | sold | $131K | 2026-04-18 |
| SION | Sionna Therapeutics, Inc. | sold | $2.3M | 2026-04-17 |
| SION | Sionna Therapeutics, Inc. | sold | $10.3M | 2026-04-16 |
| SION | Sionna Therapeutics, Inc. | sold | $10.5M | 2026-04-15 |
Full Ticker Profile
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Data sourced from SEC Form 4 insider trading filings. Transaction details are as reported to the Securities and Exchange Commission. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of SEC filings.
Last updated: June 10, 2026 at 07:18 UTC