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DIMENSIONAL FUND ADVISORS LP: OBK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DIMENSIONAL FUND ADVISORS LP on OBK, newest first. How the timeline and the estimate are built.

DIMENSIONAL FUND ADVISORS LP held 1,483,911 OBK shares at 2026-06-30 per its 13F-HR filed 2026-08-11, and reported 1,565,617 shares, 5.1%, in a 13G filed 2026-10-08.

Estimated current stake: 1,565,617 shares, 5.1% of the class

Estimated from 13G of 2026-10-08. As of 2026-09-30, 13G 0000354204-26-001083.

Shares are the reporting group's aggregate and may include entities that do not file a 13F.

Percent of portfolio stays on the 13F for 2026-06-30.

  1. event date2026-09-30
    13G 1,565,617 shares
    Share basis changed not comparable

    5.1% of the class. Different basis (group aggregate from 13G).

    13G 0000354204-26-001083 filed by DIMENSIONAL FUND ADVISORS LP
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2026-06-30
    13F 1,483,911 shares
    Change vs previous 13F +58,691 shares

    0.01% of the 13F portfolio, value $75,903,092.

    13F-HR 0000354204-26-000866 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 1,425,220 shares
    Change vs previous 13F +49,001 shares

    0.01% of the 13F portfolio, value $59,088,742.

    13F-HR 0000354204-26-000581 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 1,376,219 shares
    Change vs previous 13F +16,639 shares

    0.01% of the 13F portfolio, value $51,759,666.

    13F-HR 0000354204-26-000347 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 1,359,580 shares
    Change vs previous 13F +31,267 shares

    0.01% of the 13F portfolio, value $46,933,449.

    13F-HR 0000354204-25-001337 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 1,328,313 shares
    Change vs previous 13F +92,324 shares

    0.01% of the 13F portfolio, value $47,474,279.

    13F-HR 0000354204-25-001097 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 1,235,989 shares
    Change vs previous 13F +85,935 shares

    0.01% of the 13F portfolio, value $42,851,748.

    13F-HR 0000354204-25-000866 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 1,150,054 shares
    Change vs previous 13F +60,272 shares

    0.01% of the 13F portfolio, value $38,284,934.

    13F-HR 0000354204-25-000528 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  9. period ended2024-09-30
    13F 1,089,782 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $35,045,943.

    13F-HR 0000354204-24-004773 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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