Position in PTCT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$102,195,000
-$11,745,000 QoQ
Shares Held
1,500,000
0.0% QoQ
Ownership
1.81%
of shares outstanding
% of Portfolio
5.19%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
10 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 100.ToString("F0")%
None 0.ToString("F0")%
Common Shares in PTCT Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026TANG CAPITAL MANAGEMENT LLC holds $1,657,542,525 across 43 Biotechnology names. PTCT ranks #6 (6.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AUPH |
Aurinia Pharmaceuticals Inc.
|
12,229,500 | $181,241,190 | |
| 2 | CELC |
Celcuity Inc.
|
1,050,000 | $119,847,000 | |
| 3 | MIRM |
Mirum Pharmaceuticals, Inc.
|
1,236,027 | $114,184,174 | |
| 4 | LKFT |
Lakefront Biotherapeutics NV
|
3,785,991 | $113,579,730 | |
| 5 | CAPR |
Capricor Therapeutics, Inc.
|
3,399,900 | $103,356,960 | |
| 6 | PTCT |
Ptc Therapeutics, Inc.
This page
|
1,500,000 | $102,195,000 | |
| 7 | SYRE |
Spyre Therapeutics, Inc.
|
1,892,200 | $95,442,568 | |
| 8 | KALV |
KalVista Pharmaceuticals, Inc.
|
4,573,530 | $92,065,158 |
All Filings in PTCT
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10 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $102,195,000 | 1,500,000 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $113,940,000 | 1,500,000 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $92,055,000 | 1,500,000 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $53,724,000 | 1,100,000 | Shares | Other | 2025-08-14 | |
| 2025-03-31 | $50,960,000 | 1,000,000 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $31,598,000 | 700,000 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $25,970,000 | 700,000 | Shares | Other | 2024-11-14 | |
| 2024-06-30 | $21,406,000 | 700,000 | Shares | Other | 2024-08-14 | |
| 2024-03-31 | $20,363,000 | 700,000 | Shares | Other | 2024-05-15 | |
| 2023-12-31 | $24,804,000 | 900,000 | Shares | Other | 2024-02-14 | |
| No filing history on record for this holder in this stock. | ||||||