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Disclosery

MPM BIOIMPACT LLC: TARS position timeline

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

MPM BIOIMPACT LLC held 322,007 TARS 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 322,007 shares
    Change vs previous 13F -7,743 shares

    1.24% of the 13F portfolio, value $20,267,121.

    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 329,750 shares
    Change vs previous 13F +881 shares

    1.79% of the 13F portfolio, value $23,131,963.

    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 ended2025-12-31
    13F 328,869 shares
    Change vs previous 13F -12,627 shares

    3.08% of the 13F portfolio, value $26,927,794.

    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).

  4. period ended2025-09-30
    13F 341,496 shares
    Change vs previous 13F 0 shares

    3.32% of the 13F portfolio, value $20,295,107.

    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).

  5. period ended2025-06-30
    13F 341,496 shares
    Change vs previous 13F not available

    2.4% of the 13F portfolio, value $13,834,003.

    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).