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Disclosery

Cornerstone Investment Partners, LLC: PTGX position timeline

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

Cornerstone Investment Partners, LLC held 0 PTGX shares at 2026-03-31 per its 13F-HR filed 2026-05-08.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -4,634 shares

    13F-HR 0001328062-26-000003 filed by Cornerstone Investment 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.

  2. period ended2025-12-31
    13F 4,634 shares
    Change vs previous 13F +2 shares

    0.02% of the 13F portfolio, value $404,734.

    13F-HR 0001328062-26-000002 filed by Cornerstone Investment 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 ended2025-09-30
    13F 4,632 shares
    Change vs previous 13F -348 shares

    0.01% of the 13F portfolio, value $307,704.

    13F-HR 0001328062-25-000008 filed by Cornerstone Investment 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 ended2025-06-30
    13F 4,980 shares
    Change vs previous 13F +3 shares

    0.01% of the 13F portfolio, value $275,245.

    13F-HR 0001328062-25-000005 filed by Cornerstone Investment 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 ended2025-03-31
    13F 4,977 shares
    Change vs previous 13F -439 shares

    0.01% of the 13F portfolio, value $240,688.

    13F-HR 0001328062-25-000003 filed by Cornerstone Investment 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 5,416 shares
    Change vs previous 13F -5 shares

    0.01% of the 13F portfolio, value $209,058.

    13F-HR 0001328062-25-000002 filed by Cornerstone Investment 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 ended2024-09-30
    13F 5,421 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $243,945.

    13F-HR 0001328062-24-000009 filed by Cornerstone Investment Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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