Skip to content
Disclosery

Bain Capital Life Sciences Investors, LLC: IRON position timeline

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

Bain Capital Life Sciences Investors, LLC held 141,234 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 141,234 shares
    Change vs previous 13F 0 shares

    0.61% of the 13F portfolio, value $10,329,855.

    13F-HR 0001193125-26-350470 filed by Bain Capital Life Sciences Investors, 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 141,234 shares
    Change vs previous 13F +141,234 shares

    0.81% of the 13F portfolio, value $9,030,502.

    13F-HR 0001193125-26-226961 filed by Bain Capital Life Sciences Investors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -583,500 shares

    13F-HR 0001193125-25-283094 filed by Bain Capital Life Sciences Investors, 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 ended2025-06-30
    13F 583,500 shares
    Change vs previous 13F -400,000 shares

    3.87% of the 13F portfolio, value $30,902,160.

    13F-HR 0000950123-25-008312 filed by Bain Capital Life Sciences Investors, LLC
    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 983,500 shares
    Change vs previous 13F 0 shares

    7.22% of the 13F portfolio, value $48,820,940.

    13F-HR 0000950123-25-005465 filed by Bain Capital Life Sciences Investors, LLC
    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 983,500 shares
    Change vs previous 13F -812,235 shares

    7.33% of the 13F portfolio, value $62,353,900.

    13F-HR 0000950123-25-002317 filed by Bain Capital Life Sciences Investors, LLC
    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 1,795,735 shares
    Change vs previous 13F not available

    9.18% of the 13F portfolio, value $88,242,418.

    13F-HR 0000950123-24-011417 filed by Bain Capital Life Sciences Investors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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