Duncan Williams Asset Management, LLC
Position in PRTA — Prothena Corp Public Ltd Co
CIK 2011771
MEMPHIS, TN
Position in PRTA
as of Jun 30, 2026
· filed Jul 22, 2026
Position Value
$688,050
+$4,919 QoQ
Shares Held
70,281
0.0% QoQ
Ownership
0.137%
of shares outstanding
% of Portfolio
0.52%
of 13F equity value
Holder Rank
#57
of 187 holders
Holding Since
Sep 2024
8 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in PRTA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Duncan Williams Asset Management, LLC holds $2,085,826 across 5 Biotechnology names. PRTA ranks #1 (33.0% of the industry book) .
All Filings in PRTA
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8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $688,050 | 70,281 | Shares | Sole | 2026-07-22 | |
| 2026-03-31 | $683,131 | 70,281 | Shares | Sole | 2026-05-05 | |
| 2025-12-31 | $671,183 | 70,281 | Shares | Sole | 2026-02-05 | |
| 2025-09-30 | $862,188 | 88,339 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $536,217 | 88,339 | Shares | Sole | 2025-07-22 | |
| 2025-03-31 | $1,093,195 | 88,339 | Shares | Sole | 2025-04-21 | |
| 2024-12-31 | $958,406 | 69,199 | Shares | Sole | 2025-01-21 | |
| 2024-09-30 | $815,570 | 48,749 | Shares | Sole | 2024-10-03 | |
| No filing history on record for this holder in this stock. | ||||||