Sionna Therapeutics, Inc.
SION
31 insider filings · Latest: Sep 17, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Apr 18, 2026 | Apr 22 12:40 AM | ORBIMED ADVISORS LLCDirector | Sale | 2,948 | $44.52 | $131.2K | 2,964,774(I) | View → |
| Apr 17, 2026 | Apr 22 12:40 AM | ORBIMED ADVISORS LLCDirector | Sale | 52,397 | $44.68 | $2.3M | 2,967,722(I) | View → |
| Apr 16, 2026 | Apr 16 11:15 PM | Peter A. ThompsonDirector | Sale | 226,906 | $45.34 | $10.3M | 3,020,119(I) | View → |
| Apr 15, 2026 | Apr 16 11:15 PM | Peter A. ThompsonDirector | Sale | 235,863 | $44.64 | $10.5M | 3,247,025(I) | View → |
| Apr 14, 2026 | Apr 16 11:15 PM | Peter A. ThompsonDirector | Sale | 47,814 | $44.51 | $2.1M | 3,482,888(I) | View → |
| Apr 16, 2026 | Apr 16 11:03 PM | ORBIMED ADVISORS LLCDirector | Sale | 226,906 | $45.34 | $10.3M | 3,020,119(I) | View → |
| Apr 15, 2026 | Apr 16 11:03 PM | ORBIMED ADVISORS LLCDirector | Sale | 235,863 | $44.64 | $10.5M | 3,247,025(I) | View → |
| Apr 14, 2026 | Apr 16 11:03 PM | ORBIMED ADVISORS LLCDirector | Sale | 47,814 | $44.51 | $2.1M | 3,482,888(I) | View → |
| Mar 5, 2026 | Mar 6 11:56 PM | Jennifer FitzpatrickChief Legal Officer | Sale | 10,250 | $33.86 | $347.0K | 0(D) | View → |
| Mar 5, 2026 | Mar 5 9:28 PM | JENNIFER FITZPATRICK | Proposed Sale | 10,250 | $34.57 | $354.3K | — | View → |
| Feb 3, 2026 | Feb 5 12:43 AM | Peter A. ThompsonDirector | Sale | 29,063 | $44.58 | $1.3M | 3,530,702(I) | View → |
| Feb 2, 2026 | Feb 5 12:43 AM | Peter A. ThompsonDirector | Sale | 1,890 | $44.57 | $84.2K | 3,559,765(I) | View → |
| Feb 3, 2026 | Feb 5 12:39 AM | ORBIMED ADVISORS LLCDirector | Sale | 29,063 | $44.58 | $1.3M | 3,530,702(I) | View → |
| Feb 2, 2026 | Feb 5 12:39 AM | ORBIMED ADVISORS LLCDirector | Sale | 1,890 | $44.57 | $84.2K | 3,559,765(I) | View → |
| Jan 22, 2026 | Jan 26 10:24 PM | TPG GP A, LLC10% Owner | Sale | 250,000 | $40.00 | $10.0M | 6,494,962(I) | View → |
| Jan 22, 2026 | Jan 23 1:47 AM | Rise Fund Sling, L.P. | Proposed Sale | 195,667 | $41.77 | $8.2M | — | View → |
| Jan 22, 2026 | Jan 23 1:47 AM | Rise Fund Sling II, L.P. | Proposed Sale | 54,333 | $41.77 | $2.3M | — | View → |
| Dec 5, 2025 | Dec 5 9:27 PM | JENNIFER R FITZPATRICK | Proposed Sale | 10,250 | $40.88 | $419.0K | — | View → |
| Nov 24, 2025 | Nov 25 1:22 AM | OrbiMed Private Investments VIII, LP | Proposed Sale | 1,047,770 | $44.38 | $46.5M | — | View → |
| Nov 21, 2025 | Nov 21 9:24 PM | RA Capital Healthcare Fund LP | Proposed Sale | 1,210 | $43.66 | $52.8K | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Sep 17, 2026 | Sep 18 8:59 PM | Elena RidloffCFO and CBO | Grant/Award | 165,440 | — | 165,440(D) | View → |
| Sep 17, 2026 | Sep 18 8:59 PM | Elena RidloffCFO and CBO | Disposition | 165,440 | $39.21 | 0(D) | View → |
| Sep 17, 2026 | Sep 18 8:58 PM | Charlotte MckeeCMO and Head of R&D | Disposition | 155,700 | $39.21 | 0(D) | View → |
| Sep 17, 2026 | Sep 18 8:58 PM | Charlotte MckeeCMO and Head of R&D | Grant/Award | 155,700 | — | 155,700(D) | View → |
| Sep 17, 2026 | Sep 18 8:56 PM | Jennifer FitzpatrickCLO and Head of Program Mgmt. | Disposition | 103,140 | $39.21 | 0(D) | View → |
| Sep 17, 2026 | Sep 18 8:56 PM | Jennifer FitzpatrickCLO and Head of Program Mgmt. | Grant/Award | 103,140 | — | 103,140(D) | View → |
| Sep 17, 2026 | Sep 18 8:52 PM | Michael CloonanDirector, President & CEO | Grant/Award | 436,100 | — | 436,100(D) | View → |
| Sep 17, 2026 | Sep 18 8:52 PM | Michael CloonanDirector, President & CEO | Disposition | 436,100 | $39.21 | 0(D) | View → |
| Jul 6, 2026 | Jul 7 8:38 PM | Jennifer FitzpatrickChief Legal Officer | Option Exercise | 10,250 | $6.11 | 40,685(D) | View → |
| Jun 17, 2026 | Jun 18 9:58 PM | Laurie StelzerDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:48 PM | Joanne L. VineyDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:45 PM | Peter A. ThompsonDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:41 PM | RA CAPITAL MANAGEMENT, L.P.Director, 10% Owner | Grant/Award | 17,340 | $36.73 | 17,340(I) | View → |
| Jun 17, 2026 | Jun 18 9:39 PM | Marcella K. RuddyDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:37 PM | Joshua ResnickDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:35 PM | Harold Edward FlemingDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:33 PM | Paul J ClancyDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Jun 17, 2026 | Jun 18 9:29 PM | Bruce BoothDirector | Grant/Award | 17,340 | $36.73 | 17,340(D) | View → |
| Mar 5, 2026 | Mar 6 11:56 PM | Jennifer FitzpatrickChief Legal Officer | Option Exercise | 10,250 | $6.11 | 50,935(D) | View → |