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Disclosery

PDT Partners, LLC: IOSP position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PDT Partners, LLC on IOSP, newest first. How the timeline and the estimate are built.

PDT Partners, LLC held 31,176 IOSP 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 31,176 shares
    Change vs previous 13F -3,400 shares

    0.13% of the 13F portfolio, value $2,537,415.

    13F-HR 0001564702-26-000018 filed by PDT Partners, 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 34,576 shares
    Change vs previous 13F -8,300 shares

    0.15% of the 13F portfolio, value $2,524,740.

    13F-HR 0001564702-26-000004 filed by PDT Partners, 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 42,876 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $3,281,729.

    13F-HR 0001564702-26-000002 filed by PDT Partners, 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 42,876 shares
    Change vs previous 13F +29,433 shares

    0.21% of the 13F portfolio, value $3,308,312.

    13F-HR 0001564702-25-000027 filed by PDT Partners, 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 13,443 shares
    Change vs previous 13F +13,443 shares

    0.06% of the 13F portfolio, value $1,130,422.

    13F-HR 0001564702-25-000025 filed by PDT Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 0 shares
    Change vs previous 13F -6,854 shares

    13F-HR 0001564702-25-000004 filed by PDT Partners, LLC
    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.

  7. period ended2024-09-30
    13F 6,854 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $775,119.

    13F-HR 0001564702-24-000019 filed by PDT Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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