Over the past 12 months, 11 insiders at Sionna Therapeutics, Inc. filed 140 open-market SEC Form 4 transactions on SION: 0 purchases worth $0 and 140 sales worth $97.1M. Insiders have been net sellers over this period. The most recent filing was on Jul 7, 26.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 7, 26 | Orbimed Advisors Llc | SELL | 85.9K | $44.86 | $3.9M |
| Jul 7, 26 | Peter A. Thompson | SELL | 85.9K | $44.86 | $3.9M |
| Jul 6, 26 | Jennifer FitzpatrickChief Legal Officer | SELL | 10.3K | $43.60 | $447K |
| Jun 30, 26 | Orbimed Advisors Llc | SELL | 115.8K | $45.50 | $5.3M |
| Jun 30, 26 | Peter A. Thompson | SELL | 115.8K | $45.50 | $5.3M |
| Mar 5, 26 | Jennifer FitzpatrickChief Legal Officer | SELL | 10.3K | $33.86 | $347K |
| Feb 3, 26 | Orbimed Capital Gp Viii LlcDirector | SELL | 29.1K | $44.58 | $1.3M |
| Feb 3, 26 | Peter A. ThompsonDirector | SELL | 29.1K | $44.58 | $1.3M |
| Feb 2, 26 | Orbimed Capital Gp Viii LlcDirector | SELL | 1.9K | $44.57 | $84K |
| Feb 2, 26 | Peter A. ThompsonDirector | SELL | 1.9K | $44.57 | $84K |
| Jan 22, 26 | Jon WinkelriedTenPercentOwner | SELL | 250.0K | $40.00 | $10.0M |
| Dec 24, 25 | Orbimed Capital Gp Viii LlcDirector | SELL | 33.4K | $44.55 | $1.5M |
| Dec 24, 25 | Peter A. ThompsonDirector | SELL | 33.4K | $44.55 | $1.5M |
| Dec 19, 25 | Orbimed Capital Gp Viii LlcDirector | SELL | 875 | $44.49 | $39K |
| Dec 19, 25 | Peter A. ThompsonDirector | SELL | 875 | $44.49 | $39K |
| Dec 18, 25 | Orbimed Capital Gp Viii LlcDirector | SELL | 100 | $44.49 | $4K |
| Dec 18, 25 | Peter A. ThompsonDirector | SELL | 100 | $44.49 | $4K |
| Dec 17, 25 | Orbimed Capital Gp Viii LlcDirector | SELL | 900 | $44.50 | $40K |
| Dec 17, 25 | Peter A. ThompsonDirector | SELL | 900 | $44.50 | $40K |
| Dec 5, 25 | Jennifer FitzpatrickChief Legal Officer | SELL | 10.3K | $40.52 | $415K |
| Nov 26, 25 | Orbimed Advisors LlcDirector | SELL | 1.6K | $44.49 | $71K |
| Nov 26, 25 | Peter A. ThompsonDirector | SELL | 1.6K | $44.49 | $71K |
| Nov 25, 25 | Orbimed Advisors LlcDirector | SELL | 11.9K | $44.60 | $530K |
| Nov 25, 25 | Peter A. ThompsonDirector | SELL | 11.9K | $44.60 | $530K |
| Nov 24, 25 | Orbimed Advisors LlcDirector | SELL | 94.6K | $44.54 | $4.2M |
| Nov 24, 25 | Peter A. ThompsonDirector | SELL | 94.6K | $44.54 | $4.2M |
| Nov 21, 25 | Peter KolchinskyDirector,TenPercentOwner | SELL | 9.9K | $39.50 | $392K |
| Nov 20, 25 | Peter KolchinskyDirector,TenPercentOwner | SELL | 1.2K | $40.50 | $49K |
| Nov 19, 25 | Ra Capital Management, L.p.Director,TenPercentOwner | SELL | 18.7K | $40.61 | $748K |
| Nov 18, 25 | Ra Capital Management, L.p.Director,TenPercentOwner | SELL | 2.7K | $39.57 | $108K |
| Nov 17, 25 | Ra Capital Management, L.p.Director,TenPercentOwner | SELL | 17.9K | $42.10 | $720K |
| Oct 28, 25 | Ra Capital Nexus Fund Iii, L.p.Director | SELL | 31.4K | $39.58 | $1.2M |
| Oct 24, 25 | Ra Capital Nexus Fund Iii, L.p.Director | SELL | 122.3K | $39.50 | $4.8M |
| Oct 21, 25 | Bruce BoothDirector | SELL | 25.3K | $36.42 | $904K |
| Oct 21, 25 | Michael CloonanPresident & CEO | SELL | 33.5K | $37.31 | $1.3M |
| Oct 20, 25 | Bruce BoothDirector | SELL | 25.8K | $32.33 | $834K |
| Oct 17, 25 | Bruce BoothDirector | SELL | 28.8K | $33.47 | $925K |
| Oct 16, 25 | Bruce BoothDirector | SELL | 73.3K | $33.38 | $2.4M |
| Oct 16, 25 | Michael CloonanPresident & CEO | SELL | 10.2K | $34.00 | $322K |
| Oct 15, 25 | Michael CloonanPresident & CEO | SELL | 14.8K | $31.11 | $460K |
| Oct 15, 25 | Bruce BoothDirector | SELL | 65.7K | $31.12 | $2.0M |
| Oct 14, 25 | Bruce BoothDirector | SELL | 501 | $29.95 | $15K |
| Oct 13, 25 | Bruce BoothDirector | SELL | 44.0K | $31.03 | $1.3M |
| Oct 10, 25 | Bruce BoothDirector | SELL | 16.7K | $29.98 | $501K |
| Oct 6, 25 | Bruce BoothDirector | SELL | 9.8K | $29.95 | $292K |
| Oct 3, 25 | Bruce BoothDirector | SELL | 31.2K | $30.00 | $936K |
| Oct 1, 25 | Bruce BoothDirector | SELL | 165 | $29.95 | $5K |
| Sep 30, 25 | Bruce BoothDirector | SELL | 10.2K | $30.06 | $308K |
| Sep 29, 25 | Bruce BoothDirector | SELL | 54.6K | $30.09 | $1.6M |
| Sep 29, 25 | Michael CloonanPresident & CEO | SELL | 7.8K | $29.70 | $231K |
Over the past 12 months, insiders at Sionna Therapeutics, Inc. filed 0 open-market purchases worth $0 and 140 sales worth $97.1M on SION, which makes them net sellers over the period. The most recent Form 4 was filed on Jul 7, 26.
11 different insiders at Sionna Therapeutics, Inc. filed open-market SEC Form 4 transactions on SION over the last 12 months.
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