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Bain Capital Life Sciences Investors, LLC: UPB 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 UPB, newest first. How the timeline and the estimate are built.

Bain Capital Life Sciences Investors, LLC held 600,949 UPB 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 600,949 shares
    Change vs previous 13F -266,262 shares

    0.25% of the 13F portfolio, value $4,158,567.

    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 867,211 shares
    Change vs previous 13F -462,333 shares

    0.7% of the 13F portfolio, value $7,804,899.

    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 ended2025-12-31
    13F 1,329,544 shares
    Change vs previous 13F -1,109,994 shares

    2.76% of the 13F portfolio, value $36,097,120.

    13F-HR 0001193125-26-054833 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).

  4. period ended2025-09-30
    13F 2,439,538 shares
    Change vs previous 13F 0 shares

    3.05% of the 13F portfolio, value $45,887,710.

    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).

  5. period ended2025-06-30
    13F 2,439,538 shares
    Change vs previous 13F +144,216 shares

    3.35% of the 13F portfolio, value $26,786,127.

    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).

  6. period ended2025-03-31
    13F 2,295,322 shares
    Change vs previous 13F 0 shares

    2.08% of the 13F portfolio, value $14,047,371.

    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).

  7. period ended2024-12-31
    13F 2,295,322 shares
    Change vs previous 13F not available

    4.44% of the 13F portfolio, value $37,735,094.

    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).