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| Keyboard |
| Sionna Therapeutics Inc | |
|---|---|
| Ticker | SION |
| CIK # | 0002036042 |
| CUSIP | 829401108 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | 21 Hickory Drive, Suite 500, Waltham, MA 02451 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0002036042] | 10-K | |
| [0002036042] | 10-Q | |
| [0002036042] | 3 | |
| [0002036042] | 4 | |
| [0002036042] | 8-K | |
| [0002036042] | SC 13D | |
| [0002036042] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Fitzpatrick Jennifer
Common Stock
|
2026-03-05 | Option exercise | 10,250 | $6.11 | 62,628 |
|
Fitzpatrick Jennifer
Common Stock
|
2026-03-05 | Sell | 10,250 | $33.86 | 347,065 |
|
Fitzpatrick Jennifer
Non-Qualified Stock Option (right to buy) · derivative
|
2026-03-05 | Option exercise | 10,250 | $0.00 | |
|
Thompson Peter A
Common Stock
|
2026-02-03 | Sell | 29,063 | $44.58 | 1,295,629 |
|
OrbiMed Advisors LLC +1
Common Stock
|
2026-02-03 | Sell | 29,063 | $44.58 | 1,295,629 |
|
OrbiMed Advisors LLC +1
Common Stock
|
2026-02-02 | Sell | 1,890 | $44.57 | 84,237 |
|
Thompson Peter A
Common Stock
|
2026-02-02 | Sell | 1,890 | $44.57 | 84,237 |
|
TPG GP A LLC +2
Common Stock
|
2026-01-22 | Sell | 250,000 | $40.00 | 10,000,000 |
|
Beer Caroline Stark
Non-Qualified Stock Option (right to buy) · derivative
|
2026-01-02 | Grant | 139,340 | $0.00 | |
|
Ridloff Elena
Non-Qualified Stock Option (right to buy) · derivative
|
2026-01-02 | Grant | 165,440 | $0.00 | |
|
Cloonan Michael
Non-Qualified Stock Option (right to buy) · derivative
|
2026-01-02 | Grant | 436,100 | $0.00 | |
|
McKee Charlotte
Non-Qualified Stock Option (right to buy) · derivative
|
2026-01-02 | Grant | 155,700 | $0.00 | |
|
Fitzpatrick Jennifer
Non-Qualified Stock Option (right to buy) · derivative
|
2026-01-02 | Grant | 103,140 | $0.00 | |
|
OrbiMed Advisors LLC +1
Common Stock
|
2025-12-24 | Sell | 33,356 | $44.55 | 1,486,010 |
|
Thompson Peter A
Common Stock
|
2025-12-24 | Sell | 33,356 | $44.55 | 1,486,010 |
|
OrbiMed Advisors LLC +1
Common Stock
|
2025-12-19 | Sell | 875 | $44.49 | 38,929 |
|
Thompson Peter A
Common Stock
|
2025-12-19 | Sell | 875 | $44.49 | 38,929 |
|
OrbiMed Advisors LLC +1
Common Stock
|
2025-12-18 | Sell | 100 | $44.49 | 4,449 |
|
Thompson Peter A
Common Stock
|
2025-12-18 | Sell | 100 | $44.49 | 4,449 |
|
OrbiMed Advisors LLC +1
Common Stock
|
2025-12-17 | Sell | 900 | $44.50 | 40,050 |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 122 | 44,898,188 |
| 2025-12-31 | 101 | 43,131,065 |
| 2025-09-30 | 78 | 44,194,962 |
| 2025-06-30 | 66 | 42,600,972 |
| 2025-03-31 | 48 | 40,503,431 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| Gamma Investing LLC | [2026-06-30] | DFND | 244 | 244 |
| Farther Finance Advisors LLC | [2026-06-30] | SOLE | 0 | 196 |
| Hughes Financial Services LLC | [2026-06-30] | SOLE | 25 | 25 |
| Fortitude Family Office LLC | [2026-06-30] | SOLE | 15 | 15 |
| Contravisory Investment Management Inc | [2026-06-30] | SOLE | 6 | 6 | Prev | Page 1 | Next |