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MPM BIOIMPACT LLC: SLDB position timeline

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

MPM BIOIMPACT LLC held 0 SLDB shares at 2025-12-31 per its 13F-HR filed 2026-02-17.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -1,634,569 shares

    13F-HR 0001193125-26-054813 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.

  2. period ended2025-09-30
    13F 1,634,569 shares
    Change vs previous 13F 0 shares

    1.65% of the 13F portfolio, value $10,085,291.

    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).

  3. period ended2025-06-30
    13F 1,634,569 shares
    Change vs previous 13F -7,787 shares

    1.38% of the 13F portfolio, value $7,960,351.

    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).

  4. period ended2025-03-31
    13F 1,642,356 shares
    Change vs previous 13F +1,642,356 shares

    1.04% of the 13F portfolio, value $6,076,717.

    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).

  5. period ended2024-12-31
    13F 0 shares
    Change vs previous 13F -11,518 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  6. period ended2024-09-30
    13F 11,518 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $80,280.

    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).