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Polymer Capital Management (US) LLC: WLK position timeline

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

Polymer Capital Management (US) LLC held 14,143 WLK 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 14,143 shares
    Change vs previous 13F +1,623 shares

    0.15% of the 13F portfolio, value $1,032,439.

    13F-HR 0001973324-26-000009 filed by Polymer Capital Management (US) 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 12,520 shares
    Change vs previous 13F +6,020 shares

    0.22% of the 13F portfolio, value $1,462,586.

    13F-HR 0001973324-26-000007 filed by Polymer Capital Management (US) 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 6,500 shares
    Change vs previous 13F -9,700 shares

    0.06% of the 13F portfolio, value $480,610.

    13F-HR 0001973324-26-000003 filed by Polymer Capital Management (US) 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 16,200 shares
    Change vs previous 13F +2,140 shares

    0.17% of the 13F portfolio, value $1,248,372.

    13F-HR 0001973324-25-000011 filed by Polymer Capital Management (US) 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 14,060 shares
    Change vs previous 13F +9,825 shares

    0.17% of the 13F portfolio, value $1,067,576.

    13F-HR 0001641447-25-000003 filed by Polymer Capital Management (US) 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 4,235 shares
    Change vs previous 13F -4,566 shares

    0.13% of the 13F portfolio, value $423,627.

    13F-HR 0001973324-25-000006 filed by Polymer Capital Management (US) 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 8,801 shares
    Change vs previous 13F not available

    0.32% of the 13F portfolio, value $1,009,035.

    13F-HR 0001420506-25-000335 filed by Polymer Capital Management (US) LLC
    Filed (acceptance time not in the bulk data set), ingested

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