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ESSEX INVESTMENT MANAGEMENT CO LLC: BWXT position timeline

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

ESSEX INVESTMENT MANAGEMENT CO LLC held 25,431 BWXT shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 25,431 shares
    Change vs previous 13F -124 shares

    0.65% of the 13F portfolio, value $4,950,144.

    13F-HR 0000201772-26-000005 filed by ESSEX INVESTMENT MANAGEMENT CO 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 25,555 shares
    Change vs previous 13F -1,692 shares

    0.83% of the 13F portfolio, value $5,225,742.

    13F-HR 0000201772-26-000004 filed by ESSEX INVESTMENT MANAGEMENT CO 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 27,247 shares
    Change vs previous 13F -435 shares

    0.72% of the 13F portfolio, value $4,709,371.

    13F-HR 0000201772-26-000001 filed by ESSEX INVESTMENT MANAGEMENT CO 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 27,682 shares
    Change vs previous 13F -446 shares

    0.78% of the 13F portfolio, value $5,103,730.

    13F-HR 0000201772-25-000008 filed by ESSEX INVESTMENT MANAGEMENT CO 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 28,128 shares
    Change vs previous 13F +6,602 shares

    0.74% of the 13F portfolio, value $4,052,120.

    13F-HR 0000201772-25-000006 filed by ESSEX INVESTMENT MANAGEMENT CO 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 21,526 shares
    Change vs previous 13F -1,986 shares

    0.44% of the 13F portfolio, value $2,123,540.

    13F-HR 0000201772-25-000005 filed by ESSEX INVESTMENT MANAGEMENT CO 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 23,512 shares
    Change vs previous 13F -980 shares

    0.47% of the 13F portfolio, value $2,619,002.

    13F-HR 0000201772-25-000001 filed by ESSEX INVESTMENT MANAGEMENT CO 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 24,492 shares
    Change vs previous 13F not available

    0.46% of the 13F portfolio, value $2,662,280.

    13F-HR 0000201772-24-000006 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
    Filed (acceptance time not in the bulk data set), ingested

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