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MPM BIOIMPACT LLC: MLTX position timeline

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

MPM BIOIMPACT LLC held 1,606,967 MLTX 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 1,606,967 shares
    Change vs previous 13F -204,115 shares

    1.91% of the 13F portfolio, value $31,287,647.

    13F-HR 0001193125-26-352199 filed by MPM BIOIMPACT 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 1,811,082 shares
    Change vs previous 13F +1,811,082 shares

    2.61% of the 13F portfolio, value $33,758,568.

    13F-HR 0001193125-26-226995 filed by MPM BIOIMPACT 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 -313,571 shares

    13F-HR 0001193125-25-283112 filed by MPM BIOIMPACT 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 313,571 shares
    Change vs previous 13F -2,478 shares

    2.56% of the 13F portfolio, value $14,800,551.

    13F-HR 0000950123-25-008431 filed by MPM BIOIMPACT 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 316,049 shares
    Change vs previous 13F +819 shares

    2.12% of the 13F portfolio, value $12,348,034.

    13F-HR 0000950123-25-005756 filed by MPM BIOIMPACT 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 315,230 shares
    Change vs previous 13F -33,833 shares

    2.42% of the 13F portfolio, value $17,069,705.

    13F-HR 0000950123-25-002794 filed by MPM BIOIMPACT 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 349,063 shares
    Change vs previous 13F not available

    2.64% of the 13F portfolio, value $17,599,756.

    13F-HR 0000950123-24-011026 filed by MPM BIOIMPACT LLC
    Filed (acceptance time not in the bulk data set), ingested

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