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Logos Global Management LP: IRON position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Logos Global Management LP on IRON, newest first. How the timeline and the estimate are built.

Logos Global Management LP held 875,000 IRON 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 875,000 shares
    Change vs previous 13F +315,000 shares

    2.76% of the 13F portfolio, value $63,997,500.

    13F-HR 0001172661-26-003529 filed by Logos Global Management LP
    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 560,000 shares
    Change vs previous 13F +50,000 shares

    1.84% of the 13F portfolio, value $35,806,400.

    13F-HR 0001172661-26-002196 filed by Logos Global Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 510,000 shares
    Change vs previous 13F +60,000 shares

    2.7% of the 13F portfolio, value $40,499,100.

    13F-HR 0001172661-26-001209 filed by Logos Global Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 450,000 shares
    Change vs previous 13F -250,000 shares

    2.94% of the 13F portfolio, value $29,736,000.

    13F-HR 0001172661-25-004983 filed by Logos Global Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 700,000 shares
    Change vs previous 13F +305,658 shares

    4.95% of the 13F portfolio, value $37,072,000.

    13F-HR 0001172661-25-003284 filed by Logos Global Management LP
    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 394,342 shares
    Change vs previous 13F +194,342 shares

    3.48% of the 13F portfolio, value $19,575,137.

    13F-HR 0001172661-25-002012 filed by Logos Global Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 200,000 shares
    Change vs previous 13F -735,000 shares

    1.48% of the 13F portfolio, value $12,680,000.

    13F-HR 0001172661-25-001041 filed by Logos Global Management LP
    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 935,000 shares
    Change vs previous 13F not available

    5.15% of the 13F portfolio, value $45,945,900.

    13F-HR 0001172661-24-005030 filed by Logos Global Management LP
    Filed (acceptance time not in the bulk data set), ingested

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