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MPM BIOIMPACT LLC: RLAY position timeline

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

MPM BIOIMPACT LLC held 2,415,672 RLAY 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 2,415,672 shares
    Change vs previous 13F +56,086 shares

    2.76% of the 13F portfolio, value $45,197,223.

    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 2,359,586 shares
    Change vs previous 13F +127,135 shares

    1.81% of the 13F portfolio, value $23,477,881.

    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 2,232,451 shares
    Change vs previous 13F -50,229 shares

    2.16% of the 13F portfolio, value $18,886,535.

    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 2,282,680 shares
    Change vs previous 13F 0 shares

    1.95% of the 13F portfolio, value $11,915,590.

    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 2,282,680 shares
    Change vs previous 13F -13,244 shares

    1.37% of the 13F portfolio, value $7,898,073.

    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 2,295,924 shares
    Change vs previous 13F +27,099 shares

    1.03% of the 13F portfolio, value $6,015,321.

    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 2,268,825 shares
    Change vs previous 13F +235,784 shares

    1.33% of the 13F portfolio, value $9,347,559.

    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 2,033,041 shares
    Change vs previous 13F not available

    2.16% of the 13F portfolio, value $14,393,930.

    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).