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Disclosery

PERCEPTIVE ADVISORS LLC: IRON position timeline

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

PERCEPTIVE ADVISORS LLC held 0 IRON shares at 2026-03-31 per its 13F-HR/A filed 2026-05-29.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F/A 0 shares
    Change vs previous 13F -450,743 shares

    13F-HR/A 0001012975-26-000499 filed by PERCEPTIVE ADVISORS 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 450,743 shares
    Change vs previous 13F +450,743 shares

    0.66% of the 13F portfolio, value $35,793,502.

    13F-HR 0001012975-26-000155 filed by PERCEPTIVE 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 ended2025-06-30
    13F 0 shares
    Change vs previous 13F -150,000 shares

    13F-HR 0001012975-25-000446 filed by PERCEPTIVE ADVISORS 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.

  4. period ended2025-03-31
    13F/A 150,000 shares
    Change vs previous 13F +150,000 shares

    0.26% of the 13F portfolio, value $7,446,000.

    13F-HR/A 0001012975-25-000422 filed by PERCEPTIVE 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 ended2024-12-31
    13F 0 shares
    Change vs previous 13F -387,017 shares

    13F-HR 0001012975-25-000090 filed by PERCEPTIVE ADVISORS 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 387,017 shares
    Change vs previous 13F not available

    0.41% of the 13F portfolio, value $19,018,015.

    13F-HR 0001012975-24-000488 filed by PERCEPTIVE ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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