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MPM ASSET MANAGEMENT LLC: DYN position timeline

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

MPM ASSET MANAGEMENT LLC held 682,376 DYN shares at 2025-09-30 per its 13F-HR filed 2025-11-14.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 682,376 shares
    Change vs previous 13F 0 shares

    19.4% of the 13F portfolio, value $8,632,056.

    13F-HR 0001193125-25-283116 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-06-30
    13F 682,376 shares
    Change vs previous 13F 0 shares

    14.99% of the 13F portfolio, value $6,496,220.

    13F-HR 0000950123-25-008430 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 682,376 shares
    Change vs previous 13F 0 shares

    10.28% of the 13F portfolio, value $7,137,653.

    13F-HR 0000950123-25-005757 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-12-31
    13F 682,376 shares
    Change vs previous 13F 0 shares

    12.92% of the 13F portfolio, value $16,076,779.

    13F-HR 0000950123-25-002793 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-09-30
    13F 682,376 shares
    Change vs previous 13F -879,120 shares

    16.87% of the 13F portfolio, value $24,510,946.

    13F-HR 0000950123-24-011020 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-06-30
    13F 1,561,496 shares
    Change vs previous 13F -1,889,807 shares

    30.26% of the 13F portfolio, value $55,105,194.

    13F-HR 0000950123-24-008624 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-03-31
    13F 3,451,303 shares
    Change vs previous 13F -1,500,000 shares

    39.97% of the 13F portfolio, value $97,982,492.

    13F-HR 0000950123-24-005709 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2023-12-31
    13F 4,951,303 shares
    Change vs previous 13F not available

    32.36% of the 13F portfolio, value $65,852,330.

    13F-HR 0000950123-24-001862 filed by MPM ASSET MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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