Ra Capital Management, L.p.
Director / Ten Percent Owner
Sale
Calculated transaction value
$252.15K
33,800 shares @ $7.46
Traded
Sep 17, 2026
Filed
Sep 21, 2026
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Sionna Therapeutics
SION
ManufacturingChemicals
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
34 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Ra Capital Management, L.p. Director / Ten Percent Owner | Sep 21, 2026 4-day lag | Sale Sep 17, 2026 | $252.15K Filed shares x price | SEC Form 4 View filing | |
| Ra Capital Management, L.p. Director / Ten Percent Owner | Sep 21, 2026 4-day lag | Sale Sep 17, 2026 | $21.58M Filed shares x price | SEC Form 4 View filing | |
| Ridloff Elena CFO And Cbo | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Ridloff Elena CFO And Cbo | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Ridloff Elena CFO And Cbo | Sep 18, 2026 1-day lag | Disposition Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Ridloff Elena CFO And Cbo | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mckee Charlotte CMO And Head Of R&d | Sep 18, 2026 1-day lag | Disposition Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mckee Charlotte CMO And Head Of R&d | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mckee Charlotte CMO And Head Of R&d | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mckee Charlotte CMO And Head Of R&d | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer CLO And Head Of Program Mgmt. | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer CLO And Head Of Program Mgmt. | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer CLO And Head Of Program Mgmt. | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer CLO And Head Of Program Mgmt. | Sep 18, 2026 1-day lag | Disposition Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cloonan Michael President & CEO | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cloonan Michael President & CEO | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cloonan Michael President & CEO | Sep 18, 2026 1-day lag | Award Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cloonan Michael President & CEO | Sep 18, 2026 1-day lag | Disposition Sep 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Orbimed Advisors Llc Director | Jul 9, 2026 2-day lag | Sale Jul 7, 2026 | $3.85M Filed shares x price | SEC Form 4 View filing | |
| Thompson Peter A. Director | Jul 9, 2026 2-day lag | Sale Jul 7, 2026 | $3.85M Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer Chief Legal Officer | Jul 7, 2026 1-day lag | Exercise Jul 6, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer Chief Legal Officer | Jul 7, 2026 1-day lag | Exercise Jul 6, 2026 | $62.63K Filed shares x price | SEC Form 4 View filing | |
| Fitzpatrick Jennifer Chief Legal Officer | Jul 7, 2026 1-day lag | Sale Jul 6, 2026 | $446.86K Filed shares x price | SEC Form 4 View filing | |
| Orbimed Advisors Llc Director | Jul 2, 2026 2-day lag | Sale Jun 30, 2026 | $5.27M Filed shares x price | SEC Form 4 View filing | |
| Thompson Peter A. Director | Jul 2, 2026 2-day lag | Sale Jun 30, 2026 | $5.27M Filed shares x price | SEC Form 4 View filing | |
| Stelzer Laurie Director | Jun 18, 2026 1-day lag | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Ra Capital Management, L.p. Director / Ten Percent Owner | Jun 18, 2026 1-day lag | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Viney Joanne L. Director | Jun 18, 2026 1-day lag | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Ruddy Marcella K. Director | Jun 18, 2026 1-day lag | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Booth Bruce Director | Jun 18, 2026 1-day lag | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing |
Ra Capital Management, L.p.
Director / Ten Percent Owner
Sale
Calculated transaction value
$21.58M
3,415,011 shares @ $6.32
Traded
Sep 17, 2026
Filed
Sep 21, 2026
Ridloff Elena
CFO And Cbo
Award
Calculated transaction value
$0
165,440 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Ridloff Elena
CFO And Cbo
Award
Calculated transaction value
$0
47,268 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Ridloff Elena
CFO And Cbo
Disposition
Calculated transaction value
$0
165,440 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Ridloff Elena
CFO And Cbo
Award
Calculated transaction value
$0
47,269 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Mckee Charlotte
CMO And Head Of R&d
Disposition
Calculated transaction value
$0
155,700 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Mckee Charlotte
CMO And Head Of R&d
Award
Calculated transaction value
$0
155,700 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Mckee Charlotte
CMO And Head Of R&d
Award
Calculated transaction value
$0
50,000 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Mckee Charlotte
CMO And Head Of R&d
Award
Calculated transaction value
$0
50,000 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Fitzpatrick Jennifer
CLO And Head Of Program Mgmt.
Award
Calculated transaction value
$0
103,140 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Fitzpatrick Jennifer
CLO And Head Of Program Mgmt.
Award
Calculated transaction value
$0
28,133 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Fitzpatrick Jennifer
CLO And Head Of Program Mgmt.
Award
Calculated transaction value
$0
28,132 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Fitzpatrick Jennifer
CLO And Head Of Program Mgmt.
Disposition
Calculated transaction value
$0
103,140 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Cloonan Michael
President & CEO
Award
Calculated transaction value
$0
109,025 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Cloonan Michael
President & CEO
Award
Calculated transaction value
$0
109,025 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Cloonan Michael
President & CEO
Award
Calculated transaction value
$0
436,100 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Cloonan Michael
President & CEO
Disposition
Calculated transaction value
$0
436,100 shares @ $0
Traded
Sep 17, 2026
Filed
Sep 18, 2026
Orbimed Advisors Llc
Director
Sale
Calculated transaction value
$3.85M
85,918 shares @ $44.86
Traded
Jul 7, 2026
Filed
Jul 9, 2026
Thompson Peter A.
Director
Sale
Calculated transaction value
$3.85M
85,918 shares @ $44.86
Traded
Jul 7, 2026
Filed
Jul 9, 2026
Fitzpatrick Jennifer
Chief Legal Officer
Exercise
Calculated transaction value
$0
10,250 shares @ $0
Traded
Jul 6, 2026
Filed
Jul 7, 2026
Fitzpatrick Jennifer
Chief Legal Officer
Exercise
Calculated transaction value
$62.63K
10,250 shares @ $6.11
Traded
Jul 6, 2026
Filed
Jul 7, 2026
Fitzpatrick Jennifer
Chief Legal Officer
Sale
Calculated transaction value
$446.86K
10,250 shares @ $43.6
Traded
Jul 6, 2026
Filed
Jul 7, 2026
Orbimed Advisors Llc
Director
Sale
Calculated transaction value
$5.27M
115,844 shares @ $45.5
Traded
Jun 30, 2026
Filed
Jul 2, 2026
Thompson Peter A.
Director
Sale
Calculated transaction value
$5.27M
115,844 shares @ $45.5
Traded
Jun 30, 2026
Filed
Jul 2, 2026
Stelzer Laurie
Director
Award
Calculated transaction value
$0
17,340 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 18, 2026
Ra Capital Management, L.p.
Director / Ten Percent Owner
Award
Calculated transaction value
$0
17,340 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 18, 2026
Viney Joanne L.
Director
Award
Calculated transaction value
$0
17,340 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 18, 2026
Ruddy Marcella K.
Director
Award
Calculated transaction value
$0
17,340 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 18, 2026
Booth Bruce
Director
Award
Calculated transaction value
$0
17,340 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 18, 2026