Security key
82933R308
CUSIP: 82933R308
Security key
82933R308
Report period
Q3 2025
Institutions
1
Top holders
0
Broader feeds
Reporting periods
Recent filing periods:
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
2 of 10 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| James E. Flynn |
3/4/5
13D/G
*Possible Member of 10% Group, 10%+ Owner · Deerfield Mgmt IV, L.P.
|
100%
from 13D/G
|
$3,891,028
9,142,019 shares
mixed-class rows
|
— | 01 Jun 2021 |
| Domain Partners IX, L.P. |
13D/G
|
5%
|
$38,888
125,446 shares
|
$0 | 31 Dec 2024 |
| Alexandria Venture Investments, LLC |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$1,120,310
2,645,985 shares
|
— | 01 Jun 2021 |
| Andrew Spaventa |
3/4/5
Chief Executive Officer, Director
|
—
class O/S missing
|
$454,944
22,873 shares
|
— | 21 Feb 2025 |
| Jorge Velarde |
3/4/5
Senior Vice President
|
—
class O/S missing
|
$143,956
340,000 shares
|
— | 26 May 2021 |
| Sam Ropp |
3/4/5
Chief Commercial Officer
|
—
mixed-class rows
|
$138,368
167,000 shares
mixed-class rows
|
— | 15 Mar 2024 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Archived quarter
This older quarter remains available as an indexed ownership summary. Detailed holder rows are no longer kept in the hot table for this period.