Position in PRTA
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$386,430
+$293,687 QoQ
Shares Held
39,472
+158.3% QoQ
Ownership
0.077%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#76
of 187 holders
Holding Since
Mar 2025
3 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PRTA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026SHELTON CAPITAL MANAGEMENT holds $30,019,192 across 14 Biotechnology names. PRTA ranks #7 (1.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
29,423 | $14,615,286 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
11,459 | $7,145,144 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
14,556 | $4,381,792 | |
| 4 | ROIV |
Roivant Sciences Ltd.
|
14,598 | $516,623 | |
| 5 | JAZZ |
Jazz Pharmaceuticals plc
|
1,967 | $473,987 | |
| 6 | EXEL |
Exelixis, Inc.
|
8,157 | $443,822 | |
| 7 | PRTA |
Prothena Corp Public Ltd Co
This page
|
39,472 | $386,430 | |
| 8 | ARWR |
Arrowhead Pharmaceuticals, Inc.
|
4,460 | $363,534 |
All Filings in PRTA
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $386,430 | 39,472 | Shares | Sole | 2026-08-14 | |
| 2025-06-30 | $92,743 | 15,279 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $188,508 | 15,233 | Shares | Sole | 2025-05-15 | |
| No filing history on record for this holder in this stock. | ||||||