Peter A. Thompson
Director · Sionna Therapeutics, Inc.
- 2025
- Jul 9, 2026
- 16
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Peter A. Thompson files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- ORBIMED ADVISORS LLC - $55.67M in SION purchases and sales in the last 12 months
- RA CAPITAL MANAGEMENT, L.P. - $43.30M in SION purchases and sales in the last 12 months
- Bruce Booth - $12.29M in SION purchases and sales in the last 12 months
- Alan J. Russell - $10.25M in EWTX purchases and sales in the last 12 months
- TPG GP A, LLC - $10.00M in SION purchases and sales in the last 12 months
- Joanne M. Donovan - $4.62M in EWTX purchases and sales in the last 12 months
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Frequently asked questions
Who is Peter A. Thompson?
Peter A. Thompson is a corporate insider, tracked as Director of Sionna Therapeutics, Inc. (SION). InsiderAlpha holds 16 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Peter A. Thompson last file a Form 4?
The most recent primary Form 4 on record is dated 9 July 2026, one of 16 filings going back to 2025.
Has Peter A. Thompson been buying or selling stock?
Recorded transactions: 0 open-market purchases and 21 open-market sales ($60.57M) across all tracked filings.
