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Melqart Asset Management (UK) Ltd Historic Quarter Change: USA Options, Reduced

Melqart Asset Management (UK) Ltd historic quarter change: USA Options, Reduced

In put and call options, at their filed underlying value (listed in the US), over 10 quarters from 2023-12-31 to 2026-06-30, Melqart Asset Management (UK) Ltd opened 14 positions, added to 3, reduced 2 and sold out of 19.

  • Q1 2025: Stock UNITED STATES STL CORP NEW; Country of operation United States; Class COM · Call; Shares before 1,000,000.
  • Q3 2024: Stock ARGX; Country of operation —; Class SPONSORED ADR · Call; Shares before 38,000.

Each consecutive pair of Form 13F-HR filings compared (SEC CIK 1712901), 10 quarters: Q2 2026 (2026-03-31 to 2026-06-30, filed 2026-08-14); Q1 2026 (2025-12-31 to 2026-03-31, filed 2026-05-12); Q4 2025 (2025-09-30 to 2025-12-31, filed 2026-02-17); Q3 2025 (2025-06-30 to 2025-09-30, filed 2025-11-14); Q2 2025 (2025-03-31 to 2025-06-30, filed 2025-08-14); Q1 2025 (2024-12-31 to 2025-03-31, filed 2025-05-15); Q4 2024 (2024-09-30 to 2024-12-31, filed 2025-02-14); Q3 2024 (2024-06-30 to 2024-09-30, filed 2024-11-14); Q2 2024 (2024-03-31 to 2024-06-30, filed 2024-08-14); Q1 2024 (2023-12-31 to 2024-03-31, filed 2024-05-15). Rows for the same security, class and put/call are added together. Value change is the filed value at each quarter end, so it includes the price move. Only the filings held here are compared; the firm's 13F-HR filings go back to the quarter ended 2017-12-31.

QuarterStockCountry of operationClassShares beforeShares afterShare changeValue beforeValue afterValue changeFiled
Q1 2025UNITED STATES STL CORP NEW
CUSIP 912909108
United StatesCOM · Call1,000,000629,000-371,000$33,990,000$26,581,540-$7,408,4602025-05-15
Q3 2024ARGX
ARGENX SE
SPONSORED ADR · Call38,00032,100-5,900$16,341,520$17,400,768+$1,059,2482024-11-14

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