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SPHERA FUNDS MANAGEMENT LTD. MRK holdings history

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MERCK & CO. INC. · CUSIP 58933Y105 · CIK 1496201

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, SPHERA FUNDS MANAGEMENT LTD. reported 58.60K MRK (shares), valued at $7.53M, or 1.08% of its reported non-derivative portfolio. Filed 2026-08-14.

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Portfolio weight and quantity history
Reported portfolio weight
1.08%
Shares
58.60K
58,600
Reported value
$7.53M
USD

Shares increased 20.58%; reported value increased 28.81%, and weight changed +0.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 20261.08%58,600SEC filing ↗Filed Aug 14, 2026
Q1 20261.01%48,600SEC filing ↗Filed May 15, 2026
Q4 20251.07%48,600SEC filing ↗Filed Feb 17, 2026
Q3 20250.97%48,600SEC filing ↗Filed Nov 14, 2025
Q2 20251.01%48,600SEC filing ↗Filed Aug 14, 2025
Q1 20251.32%59,600SEC filing ↗Filed May 15, 2025
Q4 20241.10%59,600SEC filing ↗Filed Feb 14, 2025
Q3 20241.11%59,600SEC filing ↗Filed Nov 14, 2024
Q2 20241.20%59,600SEC filing ↗Filed Aug 14, 2024
Q1 20242.21%103,600SEC filing ↗Filed May 15, 2024
Q4 20232.50%123,600SEC filing ↗Filed Feb 15, 2024Amended
Q3 20233.05%123,600SEC filing ↗Filed Nov 14, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20233.05%123,600$12.72MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 14, 2023
Q4 20232.50%123,600$13.47MShares unchanged; reported value increased 5.90%, and weight changed -0.55 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 15, 2024
Q1 20242.21%103,600$13.67MShares decreased 16.18%; reported value increased 1.45%, and weight changed -0.29 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2024
Q2 20241.20%59,600$7.38MShares decreased 42.47%; reported value decreased 46.02%, and weight changed -1.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2024
Q3 20241.11%59,600$6.77MShares unchanged; reported value decreased 8.27%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2024
Q4 20241.10%59,600$5.93MShares unchanged; reported value decreased 12.40%, and weight changed -0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2025
Q1 20251.32%59,600$5.35MShares unchanged; reported value decreased 9.77%, and weight changed +0.22 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2025
Q2 20251.01%48,600$3.85MShares decreased 18.46%; reported value decreased 28.09%, and weight changed -0.31 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2025
Q3 20250.97%48,600$4.08MShares unchanged; reported value increased 6.03%, and weight changed -0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2025
Q4 20251.07%48,600$5.12MShares unchanged; reported value increased 25.41%, and weight changed +0.10 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 17, 2026
Q1 20261.01%48,600$5.85MShares unchanged; reported value increased 14.28%, and weight changed -0.06 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2026
Q2 20261.08%58,600$7.53MShares increased 20.58%; reported value increased 28.81%, and weight changed +0.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2026
SPHERA FUNDS MANAGEMENT LTD. · MERCK & CO. INC.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.