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TANG CAPITAL MANAGEMENT LLC

Position in PTCT — Ptc Therapeutics, Inc.

CIK 1232621 SAN DIEGO, CA

Position in PTCT

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$122,355,000
+$20,160,000 QoQ
Shares Held
1,500,000
0.0% QoQ
Ownership
1.80%
of shares outstanding
% of Portfolio
5.59%
of 13F equity value
Holder Rank
#14
of 380 holders
Holding Since
Dec 2023
11 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in PTCT Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

TANG CAPITAL MANAGEMENT LLC holds $1,792,526,680 across 34 Biotechnology names. PTCT ranks #6 (6.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 PTCT
Ptc Therapeutics, Inc.
This page
1,500,000 $122,355,000

All Filings in PTCT

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11 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $122,355,000 1,500,000
2026-03-31 $102,195,000 1,500,000
2025-12-31 $113,940,000 1,500,000
2025-09-30 $92,055,000 1,500,000
2025-06-30 $53,724,000 1,100,000
2025-03-31 $50,960,000 1,000,000
2024-12-31 $31,598,000 700,000
2024-09-30 $25,970,000 700,000
2024-06-30 $21,406,000 700,000
2024-03-31 $20,363,000 700,000
2023-12-31 $24,804,000 900,000