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AWM Investment Company, Inc.: MASS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of AWM Investment Company, Inc. on MASS, newest first. How the timeline and the estimate are built.

AWM Investment Company, Inc. held 4,879,773 MASS 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 4,879,773 shares
    Change vs previous 13F -320,151 shares

    3.68% of the 13F portfolio, value $42,454,025.

    13F-HR 0001535264-26-000051 filed by AWM Investment Company, Inc.
    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 5,199,924 shares
    Change vs previous 13F 0 shares

    3.52% of the 13F portfolio, value $31,823,535.

    13F-HR 0001535264-26-000032 filed by AWM Investment Company, Inc.
    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 5,199,924 shares
    Change vs previous 13F 0 shares

    2.64% of the 13F portfolio, value $27,299,601.

    13F-HR 0001535264-26-000016 filed by AWM Investment Company, Inc.
    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 5,199,924 shares
    Change vs previous 13F 0 shares

    4.27% of the 13F portfolio, value $45,551,334.

    13F-HR 0001535264-25-000059 filed by AWM Investment Company, Inc.
    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 5,199,924 shares
    Change vs previous 13F 0 shares

    4.16% of the 13F portfolio, value $37,075,458.

    13F-HR 0001535264-25-000052 filed by AWM Investment Company, Inc.
    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 5,199,924 shares
    Change vs previous 13F +3,526,000 shares

    3.21% of the 13F portfolio, value $23,295,660.

    13F-HR 0001535264-25-000043 filed by AWM Investment Company, Inc.
    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 1,673,924 shares
    Change vs previous 13F +99,594 shares

    0.45% of the 13F portfolio, value $3,682,633.

    13F-HR 0001535264-25-000019 filed by AWM Investment Company, Inc.
    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 1,574,330 shares
    Change vs previous 13F not available

    0.66% of the 13F portfolio, value $5,462,925.

    13F-HR 0001535264-24-000066 filed by AWM Investment Company, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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