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Westchester Capital Management, LLC: ANSC position timeline

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

Westchester Capital Management, LLC held 2,044,768 ANSC 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 2,044,768 shares
    Change vs previous 13F 0 shares

    1.17% of the 13F portfolio, value $23,208,117.

    13F-HR 0001512805-26-000008 filed by Westchester 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 2,044,768 shares
    Change vs previous 13F +80,091 shares

    1.12% of the 13F portfolio, value $23,064,983.

    13F-HR 0001512805-26-000005 filed by Westchester 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 1,964,677 shares
    Change vs previous 13F -500,127 shares

    1.03% of the 13F portfolio, value $21,945,442.

    13F-HR 0001512805-26-000002 filed by Westchester 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 2,464,804 shares
    Change vs previous 13F 0 shares

    1.4% of the 13F portfolio, value $26,915,659.

    13F-HR 0001628280-25-052144 filed by Westchester 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 2,464,804 shares
    Change vs previous 13F 0 shares

    1.56% of the 13F portfolio, value $26,743,123.

    13F-HR 0001277372-25-000002 filed by Westchester 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 2,464,804 shares
    Change vs previous 13F 0 shares

    1.52% of the 13F portfolio, value $26,299,459.

    13F-HR 0000019481-25-000003 filed by Westchester 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 2,464,804 shares
    Change vs previous 13F +750,000 shares

    1.5% of the 13F portfolio, value $25,855,794.

    13F-HR 0001591068-25-000010 filed by Westchester 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 1,714,804 shares
    Change vs previous 13F not available

    0.82% of the 13F portfolio, value $17,748,222.

    13F-HR 0001512805-24-000028 filed by Westchester Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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