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Disclosery

RHUMBLINE ADVISERS: WLK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of RHUMBLINE ADVISERS on WLK, newest first. How the timeline and the estimate are built.

RHUMBLINE ADVISERS held 86,305 WLK shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 86,305 shares
    Change vs previous 13F -999 shares

    <0.01% of the 13F portfolio, value $6,300,265.

    13F-HR 0001115418-26-000005 filed by RHUMBLINE ADVISERS
    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 87,304 shares
    Change vs previous 13F +1,872 shares

    0.01% of the 13F portfolio, value $10,198,818.

    13F-HR 0001115418-26-000003 filed by RHUMBLINE ADVISERS
    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 85,432 shares
    Change vs previous 13F -3,427 shares

    0.01% of the 13F portfolio, value $6,316,798.

    13F-HR 0001115418-26-000002 filed by RHUMBLINE ADVISERS
    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 88,859 shares
    Change vs previous 13F -1,769 shares

    0.01% of the 13F portfolio, value $6,847,442.

    13F-HR 0001115418-25-000021 filed by RHUMBLINE ADVISERS
    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 90,628 shares
    Change vs previous 13F -9,811 shares

    0.01% of the 13F portfolio, value $6,881,346.

    13F-HR 0001115418-25-000017 filed by RHUMBLINE ADVISERS
    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/A 100,439 shares
    Change vs previous 13F +2,383 shares

    0.01% of the 13F portfolio, value $10,046,873.

    13F-HR/A 0001115418-25-000005 filed by RHUMBLINE ADVISERS
    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 98,056 shares
    Change vs previous 13F +4,088 shares

    0.01% of the 13F portfolio, value $11,242,081.

    13F-HR/A 0001115418-25-000006 filed by RHUMBLINE ADVISERS
    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 93,968 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $14,122,410.

    13F-HR 0001115418-24-000011 filed by RHUMBLINE ADVISERS
    Filed (acceptance time not in the bulk data set), ingested

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