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Disclosery

683 Capital Management, LLC: MREO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of 683 Capital Management, LLC on MREO, newest first. How the timeline and the estimate are built.

683 Capital Management, LLC held 11,777,856 MREO shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 11,777,856 shares
    Change vs previous 13F -222,144 shares

    0.34% of the 13F portfolio, value $3,741,825.

    13F-HR 0001404574-26-000023 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 12,000,000 shares
    Change vs previous 13F -3,025,000 shares

    0.37% of the 13F portfolio, value $3,960,000.

    13F-HR 0001404574-26-000018 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 15,025,000 shares
    Change vs previous 13F +10,150,000 shares

    0.52% of the 13F portfolio, value $6,260,917.

    13F-HR 0001404574-26-000003 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 4,875,000 shares
    Change vs previous 13F +525,000 shares

    0.91% of the 13F portfolio, value $10,042,500.

    13F-HR 0001404574-25-000002 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 4,350,000 shares
    Change vs previous 13F -285,000 shares

    1.2% of the 13F portfolio, value $11,788,499.

    13F-HR 0001085146-25-005065 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 4,635,000 shares
    Change vs previous 13F +85,000 shares

    1.06% of the 13F portfolio, value $10,428,751.

    13F-HR 0001085146-25-003184 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 4,550,000 shares
    Change vs previous 13F -299,800 shares

    1.57% of the 13F portfolio, value $15,925,001.

    13F-HR 0001085146-25-001511 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 4,849,800 shares
    Change vs previous 13F not available

    2.03% of the 13F portfolio, value $19,932,679.

    13F-HR 0001085146-24-005894 filed by 683 Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).