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DIMENSIONAL FUND ADVISORS LP: OSPN position timeline

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

DIMENSIONAL FUND ADVISORS LP held 1,730,038 OSPN shares at 2026-06-30 per its 13F-HR filed 2026-08-11, and reported 1,910,302 shares, 5.2%, in a 13G filed 2026-10-08.

Estimated current stake: 1,910,302 shares, 5.2% of the class

Estimated from 13G of 2026-10-08. As of 2026-09-30, 13G 0000354204-26-001075.

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 1,910,302 shares
    Share basis changed not comparable

    5.2% of the class. Different basis (group aggregate from 13G).

    13G 0000354204-26-001075 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 1,730,038 shares
    Change vs previous 13F +265,514 shares

    <0.01% of the 13F portfolio, value $24,825,969.

    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 1,464,524 shares
    Change vs previous 13F +349,648 shares

    <0.01% of the 13F portfolio, value $15,420,580.

    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 1,114,876 shares
    Change vs previous 13F +64,568 shares

    <0.01% of the 13F portfolio, value $14,315,400.

    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 1,050,308 shares
    Change vs previous 13F +37,516 shares

    <0.01% of the 13F portfolio, value $16,689,377.

    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 1,012,792 shares
    Change vs previous 13F +84,386 shares

    <0.01% of the 13F portfolio, value $16,904,260.

    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 928,406 shares
    Change vs previous 13F +10,715 shares

    <0.01% of the 13F portfolio, value $14,158,271.

    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 917,691 shares
    Change vs previous 13F +70,525 shares

    <0.01% of the 13F portfolio, value $17,014,983.

    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 847,166 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $14,120,083.

    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).