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MARTIN & CO INC /TN/: NPK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MARTIN & CO INC /TN/ on NPK, newest first. How the timeline and the estimate are built.

MARTIN & CO INC /TN/ held 29,138 NPK shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 29,138 shares
    Change vs previous 13F -4 shares

    0.57% of the 13F portfolio, value $3,641,959.

    13F-HR 0001172661-26-003323 filed by MARTIN & CO INC /TN/
    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 29,142 shares
    Change vs previous 13F +396 shares

    0.68% of the 13F portfolio, value $3,994,203.

    13F-HR 0001172661-26-001826 filed by MARTIN & CO INC /TN/
    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 28,746 shares
    Change vs previous 13F +807 shares

    0.53% of the 13F portfolio, value $3,068,923.

    13F-HR 0001172661-26-000766 filed by MARTIN & CO INC /TN/
    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 27,939 shares
    Change vs previous 13F +308 shares

    0.56% of the 13F portfolio, value $3,133,359.

    13F-HR 0001172661-25-004631 filed by MARTIN & CO INC /TN/
    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 27,631 shares
    Change vs previous 13F not available

    0.5% of the 13F portfolio, value $2,706,733.

    13F-HR 0001172661-25-003110 filed by MARTIN & CO INC /TN/
    Filed (acceptance time not in the bulk data set), ingested

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