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TANG CAPITAL MANAGEMENT LLC: PGEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of TANG CAPITAL MANAGEMENT LLC on PGEN, newest first. How the timeline and the estimate are built.

TANG CAPITAL MANAGEMENT LLC held 6,417,500 PGEN 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 6,417,500 shares
    Change vs previous 13F 0 shares

    1.66% of the 13F portfolio, value $36,579,750.

    13F-HR 0001214659-26-010416 filed by TANG CAPITAL MANAGEMENT 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 6,417,500 shares
    Change vs previous 13F +800,000 shares

    1.26% of the 13F portfolio, value $24,835,725.

    13F-HR 0001214659-26-006493 filed by TANG CAPITAL MANAGEMENT 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 5,617,500 shares
    Change vs previous 13F -6,782,500 shares

    1.16% of the 13F portfolio, value $23,481,150.

    13F-HR 0001214659-26-002015 filed by TANG CAPITAL MANAGEMENT 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 12,400,000 shares
    Change vs previous 13F +12,400,000 shares

    1.57% of the 13F portfolio, value $40,796,000.

    13F-HR 0001214659-25-016677 filed by TANG CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-12-31
    13F 0 shares
    Change vs previous 13F -500,000 shares

    13F-HR 0001214659-25-002812 filed by TANG CAPITAL MANAGEMENT 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.

  6. period ended2024-09-30
    13F 500,000 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $473,550.

    13F-HR 0001214659-24-019100 filed by TANG CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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