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Disclosery

Harvey Partners, LLC: MTRX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Harvey Partners, LLC on MTRX, newest first. How the timeline and the estimate are built.

Harvey Partners, LLC held 815,023 MTRX 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 815,023 shares
    Change vs previous 13F -89,977 shares

    0.77% of the 13F portfolio, value $11,165,815.

    13F-HR 0001214659-26-010396 filed by Harvey Partners, 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 905,000 shares
    Change vs previous 13F +52,322 shares

    0.84% of the 13F portfolio, value $10,389,400.

    13F-HR 0001214659-26-006431 filed by Harvey Partners, 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 852,678 shares
    Change vs previous 13F +297 shares

    0.9% of the 13F portfolio, value $9,976,333.

    13F-HR 0001214659-26-001996 filed by Harvey Partners, 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 852,381 shares
    Change vs previous 13F -369,381 shares

    1.01% of the 13F portfolio, value $11,149,144.

    13F-HR 0001214659-25-016663 filed by Harvey Partners, 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 1,221,762 shares
    Change vs previous 13F -311,238 shares

    1.65% of the 13F portfolio, value $16,506,005.

    13F-HR 0001214659-25-012245 filed by Harvey Partners, 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 1,533,000 shares
    Change vs previous 13F +11,000 shares

    2.26% of the 13F portfolio, value $19,055,190.

    13F-HR 0001214659-25-007852 filed by Harvey Partners, 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 1,522,000 shares
    Change vs previous 13F +7,000 shares

    2.05% of the 13F portfolio, value $18,218,340.

    13F-HR 0001214659-25-002810 filed by Harvey Partners, 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 1,515,000 shares
    Change vs previous 13F not available

    2.01% of the 13F portfolio, value $17,467,950.

    13F-HR 0001214659-24-019173 filed by Harvey Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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