PTCT — PTC THERAPEUTICS INC

Ownership history in XTX Topco Ltd  ·  7 quarters on record

This page tracks every 13F SEC filing in which XTX Topco Ltd reported a position in PTC THERAPEUTICS INC (PTCT). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.16% (2021 Q1)
Avg. % of fund
0.08%
First filed
2021 Q1
Last filed
2025 Q3
Quarters held
7
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 7,410 -28,577 -79.4% 0.02% $455K $61.37
2025 Q1 ADDED 35,987 +22,764 +172.2% 0.09% $1.8M $50.96
2024 Q4 REDUCED 13,223 -17,748 -57.3% 0.05% $597K $45.14
2024 Q2 ADDED 30,971 +14,482 +87.8% 0.08% $947K $30.58
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% of Fund (quarterly)    PTCT price (monthly, adj. close)

Other funds also holding PTCT

As of 2025 Q4 — sorted by position size

Palo Alto Investors LP 3Y 7Y 9.56% RTW INVESTMENTS, LP 3Y 7Y 5.89% TANG CAPITAL MANAGEMENT LLC 3Y 7Y 5.63% MPM BioImpact LLC 3Y 3.74% ARMISTICE CAPITAL, LLC 3Y 7Y 2.53% Parkman Healthcare Partners LLC 3Y 1.16% SECTOR GAMMA AS 3Y 7Y 1.07% Hood River Capital Management LLC 3Y 7Y 0.84% Abacus FCF Advisors LLC 3Y 7Y 0.75% Ikarian Capital, LLC 3Y 0.7%
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