O'SHAUGHNESSY ASSET MANAGEMENT, LLC
Position in PTGX — Protagonist Therapeutics, Inc
CIK 1423442
Stamford, CT
Position in PTGX
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$550,139
+$292,963 QoQ
Shares Held
4,488
+83.9% QoQ
Ownership
0.007%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#205
of 341 holders
Holding Since
Mar 2021
7 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PTGX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026O'SHAUGHNESSY ASSET MANAGEMENT, LLC holds $102,425,978 across 44 Biotechnology names. PTGX ranks #29 (0.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
42,063 | $20,893,953 | |
| 2 | AUPH |
Aurinia Pharmaceuticals Inc.
|
567,492 | $9,630,339 | |
| 3 | PBYI |
Puma Biotechnology, Inc.
|
1,123,783 | $9,113,880 | |
| 4 | EXEL |
Exelixis, Inc.
|
124,709 | $6,785,416 | |
| 5 | JAZZ |
Jazz Pharmaceuticals plc
|
25,864 | $6,232,448 | |
| 6 | ARGX |
Argenx SE
|
6,450 | $5,984,116 | |
| 7 | REGN |
Regeneron Pharmaceuticals, Inc.
|
9,404 | $5,863,770 | |
| 8 | RIGL |
Rigel Pharmaceuticals Inc
|
131,177 | $5,131,644 |
All Filings in PTGX
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $550,139 | 4,488 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $257,176 | 2,440 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $381,588 | 4,369 | Shares | Sole | 2026-02-11 | |
| 2024-09-30 | $204,795 | 4,551 | Shares | Sole | 2024-11-12 | |
| 2021-09-30 | $38,310 | 2,162 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $107,846 | 2,403 | Shares | Sole | 2021-08-09 | |
| 2021-03-31 | $57,135 | 2,206 | Shares | Sole | 2021-05-14 | |
| No filing history on record for this holder in this stock. | ||||||