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Prospect Capital Advisors, LLC: OSIS position timeline

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

Prospect Capital Advisors, LLC held 57,640 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 57,640 shares
    Change vs previous 13F +8,155 shares

    5.72% of the 13F portfolio, value $12,605,868.

    13F-HR 0001632368-26-000006 filed by Prospect Capital Advisors, 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/A 49,485 shares
    Change vs previous 13F -2,500 shares

    7.31% of the 13F portfolio, value $13,138,762.

    13F-HR/A 0001632368-26-000004 filed by Prospect Capital Advisors, 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 51,985 shares
    Change vs previous 13F -500 shares

    6.84% of the 13F portfolio, value $13,259,294.

    13F-HR 0001632368-26-000002 filed by Prospect Capital Advisors, 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 52,485 shares
    Change vs previous 13F -1,000 shares

    6.78% of the 13F portfolio, value $13,081,361.

    13F-HR 0001632368-25-000004 filed by Prospect Capital Advisors, 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 53,485 shares
    Change vs previous 13F -140 shares

    7.24% of the 13F portfolio, value $12,026,637.

    13F-HR 0001879202-25-000033 filed by Prospect Capital Advisors, 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 53,625 shares
    Change vs previous 13F -1,760 shares

    7.13% of the 13F portfolio, value $10,421,483.

    13F-HR 0001879202-25-000018 filed by Prospect Capital Advisors, 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 55,385 shares
    Change vs previous 13F -17,055 shares

    5.38% of the 13F portfolio, value $9,273,111.

    13F-HR 0001879202-25-000010 filed by Prospect Capital Advisors, LLC
    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 72,440 shares
    Change vs previous 13F not available

    4.97% of the 13F portfolio, value $10,998,565.

    13F-HR 0001879202-24-000061 filed by Prospect Capital Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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