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Disclosery

NEXTBio Capital Management LP: IRON position timeline

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

NEXTBio Capital Management LP held 52,655 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 52,655 shares
    Change vs previous 13F 0 shares

    1.77% of the 13F portfolio, value $3,851,187.

    13F-HR 0001172661-26-003533 filed by NEXTBio Capital 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 52,655 shares
    Change vs previous 13F +9,877 shares

    1.56% of the 13F portfolio, value $3,366,761.

    13F-HR 0001172661-26-001957 filed by NEXTBio Capital 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 42,778 shares
    Change vs previous 13F not available

    1.99% of the 13F portfolio, value $3,397,001.

    13F-HR 0001172661-26-000761 filed by NEXTBio Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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