JONES FINANCIAL COMPANIES LLLP
Position in PRTA — Prothena Corp Public Ltd Co
CIK 815917
DES PERES, MO
Position in PRTA
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$190,219
+$1,564 QoQ
Shares Held
19,430
+0.1% QoQ
Ownership
0.038%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#96
of 187 holders
Holding Since
Jun 2025
5 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, 2026JONES FINANCIAL COMPANIES LLLP holds $339,789,023 across 287 Biotechnology names. PRTA ranks #63 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
215,419 | $107,005,079 | |
| 2 | TECH |
BIO-TECHNE Corp
|
797,001 | $56,308,120 | |
| 3 | SLS |
SELLAS Life Sciences Group, Inc.
|
2,304,561 | $34,015,320 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
80,491 | $24,230,204 | |
| 5 | REGN |
Regeneron Pharmaceuticals, Inc.
|
28,691 | $17,889,985 | |
| 6 | ARGX |
Argenx SE
|
14,657 | $13,598,324 | |
| 7 | ARDX |
Ardelyx, Inc.
|
1,765,932 | $9,006,253 | |
| 8 | INSM |
INSMED Inc
|
68,803 | $7,335,774 |
All Filings in PRTA
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $190,219 | 19,430 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $188,655 | 19,409 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $151,845 | 15,900 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $136,640 | 14,000 | Shares | Sole | 2025-11-04 | |
| 2025-06-30 | $84,980 | 14,000 | Shares | Sole | 2025-08-13 | |
| No filing history on record for this holder in this stock. | ||||||