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NEEDHAM INVESTMENT MANAGEMENT LLC: MASS position timeline

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

NEEDHAM INVESTMENT MANAGEMENT LLC held 1,820,620 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 1,820,620 shares
    Change vs previous 13F +580,620 shares

    0.48% of the 13F portfolio, value $15,839,394.

    13F-HR 0000919574-26-005153 filed by NEEDHAM INVESTMENT 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 ended2026-03-31
    13F 1,240,000 shares
    Change vs previous 13F +470,000 shares

    0.39% of the 13F portfolio, value $7,588,800.

    13F-HR 0000919574-26-003133 filed by NEEDHAM INVESTMENT 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 ended2025-12-31
    13F 770,000 shares
    Change vs previous 13F +548,000 shares

    0.26% of the 13F portfolio, value $4,042,500.

    13F-HR 0000919574-26-000997 filed by NEEDHAM INVESTMENT 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 ended2025-09-30
    13F 222,000 shares
    Change vs previous 13F +72,000 shares

    0.14% of the 13F portfolio, value $1,944,720.

    13F-HR 0000919574-25-006767 filed by NEEDHAM INVESTMENT 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 ended2025-06-30
    13F 150,000 shares
    Change vs previous 13F -50,000 shares

    0.09% of the 13F portfolio, value $1,069,500.

    13F-HR 0000919574-25-004664 filed by NEEDHAM INVESTMENT 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 ended2025-03-31
    13F 200,000 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $896,000.

    13F-HR 0000919574-25-003041 filed by NEEDHAM INVESTMENT 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 ended2024-12-31
    13F 200,000 shares
    Change vs previous 13F +100,000 shares

    0.03% of the 13F portfolio, value $440,000.

    13F-HR 0000919574-25-001161 filed by NEEDHAM INVESTMENT 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 ended2024-09-30
    13F 100,000 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $347,000.

    13F-HR 0000919574-24-006457 filed by NEEDHAM INVESTMENT MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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