Position in PRTA
as of Jun 30, 2026
· filed Aug 10, 2026
Position Value
$281,296
-$6,347 QoQ
Shares Held
28,733
-2.9% QoQ
Ownership
0.056%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#82
of 187 holders
Holding Since
Sep 2025
4 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, 2026GREAT LAKES ADVISORS, LLC holds $62,444,106 across 24 Biotechnology names. PRTA ranks #21 (0.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
|
16,928 | $10,555,285 | |
| 2 | JAZZ |
Jazz Pharmaceuticals plc
|
33,804 | $8,145,749 | |
| 3 | PTGX |
Protagonist Therapeutics, Inc
|
56,904 | $6,975,292 | |
| 4 | IONS |
Ionis Pharmaceuticals Inc
|
66,924 | $5,306,403 | |
| 5 | ACAD |
Acadia Pharmaceuticals Inc
|
151,341 | $3,828,926 | |
| 6 | ROIV |
Roivant Sciences Ltd.
|
107,786 | $3,814,545 | |
| 7 | DNLI |
Denali Therapeutics Inc.
|
145,045 | $3,730,557 | |
| 8 | IDYA |
IDEAYA Biosciences, Inc.
|
87,747 | $3,270,330 |
All Filings in PRTA
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $281,296 | 28,733 | Shares | Sole | 2026-08-10 | |
| 2026-03-31 | $287,643 | 29,593 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $125,954 | 13,189 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $129,651 | 13,284 | Shares | Sole | 2025-11-03 | |
| No filing history on record for this holder in this stock. | ||||||