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Disclosery

PDT Partners, LLC: OSIS position timeline

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

PDT Partners, LLC held 34,904 OSIS 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 34,904 shares
    Change vs previous 13F -7,200 shares

    0.4% of the 13F portfolio, value $7,633,505.

    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 42,104 shares
    Change vs previous 13F 0 shares

    0.66% of the 13F portfolio, value $11,179,033.

    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 42,104 shares
    Change vs previous 13F 0 shares

    0.7% of the 13F portfolio, value $10,739,046.

    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 42,104 shares
    Change vs previous 13F 0 shares

    0.66% of the 13F portfolio, value $10,494,001.

    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 42,104 shares
    Change vs previous 13F +15,108 shares

    0.54% of the 13F portfolio, value $9,467,505.

    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 ended2025-03-31
    13F 26,996 shares
    Change vs previous 13F +22,795 shares

    0.37% of the 13F portfolio, value $5,246,403.

    13F-HR 0001564702-25-000009 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).

  7. period ended2024-12-31
    13F 4,201 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $703,373.

    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).