Sionna Therapeutics, Inc.
SION
21 insider filings · Latest: Jun 17, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| May 29, 2026 | Jun 1 4:39 PM | OrbiMed Private Investments VIII, LP | Proposed Sale | 210,876 | $42.82 | $9.0M | — | View → |
| May 27, 2026 | May 30 1:02 AM | Peter A. ThompsonDirector | Sale | 101 | $44.49 | $4.5K | 2,671,721(I) | View → |
| May 27, 2026 | May 30 12:57 AM | ORBIMED ADVISORS LLCDirector | Sale | 101 | $44.49 | $4.5K | 2,671,721(I) | View → |
| May 29, 2026 | May 29 10:44 PM | OrbiMed Private Investments VIII, LP | Proposed Sale | 1,082,480 | $42.80 | $46.3M | — | View → |
| May 11, 2026 | May 11 11:14 PM | Peter A. ThompsonDirector | Sale | 184,639 | $46.22 | $8.5M | 2,671,822(I) | View → |
| May 8, 2026 | May 11 11:14 PM | Peter A. ThompsonDirector | Sale | 59,767 | $44.58 | $2.7M | 2,856,461(I) | View → |
| May 7, 2026 | May 11 11:14 PM | Peter A. ThompsonDirector | Sale | 48,546 | $44.61 | $2.2M | 2,916,228(I) | View → |
| May 11, 2026 | May 11 10:58 PM | ORBIMED ADVISORS LLCDirector | Sale | 184,639 | $46.22 | $8.5M | 2,671,822(I) | View → |
| May 8, 2026 | May 11 10:58 PM | ORBIMED ADVISORS LLCDirector | Sale | 59,767 | $44.58 | $2.7M | 2,856,461(I) | View → |
| May 7, 2026 | May 11 10:58 PM | ORBIMED ADVISORS LLCDirector | Sale | 48,546 | $44.61 | $2.2M | 2,916,228(I) | View → |
| Apr 18, 2026 | Apr 22 12:42 AM | Peter A. ThompsonDirector | Sale | 2,948 | $44.52 | $131.2K | 2,964,774(I) | View → |
| Apr 17, 2026 | Apr 22 12:42 AM | Peter A. ThompsonDirector | Sale | 52,397 | $44.68 | $2.3M | 2,967,722(I) | View → |
| 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 → |
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Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| 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 → |