$ Value
$347K
Shares
10,250
Price
$34
Filed
Mar 6
Insider
Name
Fitzpatrick Jennifer
Title
Chief Legal Officer
CIK
0002061851
Roles
Transaction Details
Transaction Date
2026-03-05
Code
S
Table
Non-Derivative
Ownership
Direct
Equity Swap
No
Shares After
—
Footnotes
This transaction was automatically executed pursuant to a Rule 10b5-1 trading plan adopted on June 5, 2025. | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.56 to $34.83, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected. | 25% of the shares underlying this option vested on June 3, 2025, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
Filing Info
Fitzpatrick Jennifer's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-03-05 | SION | M | $63K |
| 2026-03-05 | SION | ▼ | $347K |
| 2026-03-05 | SION | M | $0 |
| 2026-01-02 | SION | A | $0 |
| 2025-12-05 | SION | M | $63K |
| 2025-12-05 | SION | ▼ | $415K |
| 2025-12-05 | SION | M | $0 |
| 2025-09-04 | SION | M | $63K |
| 2025-09-04 | SION | ▼ | $237K |
| 2025-09-04 | SION | M | $0 |
Other Insiders at SION (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
| ORBIMED ADVISORS LLC / Thompson Peter A. | — | $26.8M | 2026-04-18 |
|
Fitzpatrick Jennifer
Chief Legal Officer
|
— | — | 2026-03-05 |