Skip to content
Disclosery

MPM BIOIMPACT LLC: HOWL position timeline

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

MPM BIOIMPACT LLC held 80,142 HOWL 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 80,142 shares
    Change vs previous 13F -1,128,668 shares

    <0.01% of the 13F portfolio, value $28,851.

    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 1,208,810 shares
    Change vs previous 13F -184,747 shares

    0.08% of the 13F portfolio, value $1,006,455.

    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 1,393,557 shares
    Change vs previous 13F -1,015,253 shares

    0.1% of the 13F portfolio, value $883,515.

    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 2,408,810 shares
    Change vs previous 13F 0 shares

    0.78% of the 13F portfolio, value $4,745,356.

    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 2,408,810 shares
    Change vs previous 13F 0 shares

    0.45% of the 13F portfolio, value $2,625,603.

    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).

  6. period ended2025-03-31
    13F 2,408,810 shares
    Change vs previous 13F +20,799 shares

    0.4% of the 13F portfolio, value $2,341,363.

    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).

  7. period ended2024-12-31
    13F 2,388,011 shares
    Change vs previous 13F 0 shares

    0.5% of the 13F portfolio, value $3,534,256.

    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).

  8. period ended2024-09-30
    13F 2,388,011 shares
    Change vs previous 13F not available

    0.76% of the 13F portfolio, value $5,062,583.

    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).