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Disclosery

Polar Asset Management Partners Inc.: WDC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Polar Asset Management Partners Inc. on WDC, newest first. How the timeline and the estimate are built.

Polar Asset Management Partners Inc. held 0 WDC 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 0 shares
    Change vs previous 13F -23,945 shares

    13F-HR 0001326389-26-000062 filed by Polar Asset Management Partners Inc.
    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 ended2026-03-31
    13F 23,945 shares
    Change vs previous 13F +23,945 shares

    0.15% of the 13F portfolio, value $6,476,883.

    13F-HR 0001326389-26-000039 filed by Polar Asset Management Partners Inc.
    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 0 shares
    Change vs previous 13F -143,212 shares

    13F-HR 0001326389-26-000033 filed by Polar Asset Management Partners Inc.
    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.

  4. period ended2025-09-30
    13F/A 143,212 shares
    Change vs previous 13F -100,463 shares

    0.35% of the 13F portfolio, value $17,194,033.

    13F-HR/A 0001326389-25-000282 filed by Polar Asset Management Partners Inc.
    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 243,675 shares
    Change vs previous 13F -130,223 shares

    0.39% of the 13F portfolio, value $15,592,763.

    13F-HR 0001326389-25-000277 filed by Polar Asset Management Partners Inc.
    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 373,898 shares
    Change vs previous 13F +2,898 shares

    0.5% of the 13F portfolio, value $15,116,696.

    13F-HR 0001041062-25-000132 filed by Polar Asset Management Partners Inc.
    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/A 371,000 shares
    Change vs previous 13F +170,000 shares

    0.33% of the 13F portfolio, value $22,122,730.

    13F-HR/A 0001326389-25-000142 filed by Polar Asset Management Partners Inc.
    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 201,000 shares
    Change vs previous 13F not available

    0.33% of the 13F portfolio, value $13,726,290.

    13F-HR 0001062993-24-019140 filed by Polar Asset Management Partners Inc.
    Filed (acceptance time not in the bulk data set), ingested

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