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Assenagon Asset Management S.A.: MASI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Assenagon Asset Management S.A. on MASI, newest first. How the timeline and the estimate are built.

Assenagon Asset Management S.A. held 0 MASI shares at 2026-03-31 per its 13F-HR filed 2026-04-20.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -53,525 shares

    13F-HR 0001546007-26-000003 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 53,525 shares
    Change vs previous 13F +51,068 shares

    0.01% of the 13F portfolio, value $6,961,462.

    13F-HR 0001546007-26-000002 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 2,457 shares
    Change vs previous 13F -568 shares

    <0.01% of the 13F portfolio, value $362,530.

    13F-HR 0001546007-25-000008 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 3,025 shares
    Change vs previous 13F -1,354 shares

    <0.01% of the 13F portfolio, value $508,866.

    13F-HR 0001546007-25-000005 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 4,379 shares
    Change vs previous 13F -211,672 shares

    <0.01% of the 13F portfolio, value $729,541.

    13F-HR 0001546007-25-000003 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 216,051 shares
    Change vs previous 13F +194,788 shares

    0.06% of the 13F portfolio, value $35,713,230.

    13F-HR 0001546007-25-000002 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 21,263 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $2,834,996.

    13F-HR 0001546007-24-000010 filed by Assenagon Asset Management S.A.
    Filed (acceptance time not in the bulk data set), ingested

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