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RTW INVESTMENTS, LP: PEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of RTW INVESTMENTS, LP on PEN, newest first. How the timeline and the estimate are built.

RTW INVESTMENTS, LP held 0 PEN shares at 2026-03-31 per its 13F-HR filed 2026-05-15.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -866,499 shares

    13F-HR 0001493215-26-000130 filed by RTW INVESTMENTS, LP
    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 866,499 shares
    Change vs previous 13F 0 shares

    2.7% of the 13F portfolio, value $269,403,204.

    13F-HR 0001493215-26-000060 filed by RTW INVESTMENTS, LP
    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 866,499 shares
    Change vs previous 13F +2,946 shares

    2.7% of the 13F portfolio, value $219,501,527.

    13F-HR 0001493215-25-000054 filed by RTW INVESTMENTS, LP
    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 863,553 shares
    Change vs previous 13F +783 shares

    3.16% of the 13F portfolio, value $221,613,606.

    13F-HR 0001493215-25-000007 filed by RTW INVESTMENTS, LP
    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 862,770 shares
    Change vs previous 13F +320 shares

    3.53% of the 13F portfolio, value $230,713,326.

    13F-HR 0001493215-25-000003 filed by RTW INVESTMENTS, LP
    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 862,450 shares
    Change vs previous 13F +66,700 shares

    3.1% of the 13F portfolio, value $204,814,626.

    13F-HR 0001493152-25-006608 filed by RTW INVESTMENTS, LP
    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 795,750 shares
    Change vs previous 13F not available

    2.24% of the 13F portfolio, value $154,622,183.

    13F-HR 0001493152-24-045409 filed by RTW INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

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