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Disclosery

Harvey Partners, LLC: CALX position timeline

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

Harvey Partners, LLC held 420,500 CALX 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 420,500 shares
    Change vs previous 13F -152,000 shares

    1.09% of the 13F portfolio, value $15,693,060.

    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 572,500 shares
    Change vs previous 13F +38,768 shares

    2.28% of the 13F portfolio, value $28,046,775.

    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 533,732 shares
    Change vs previous 13F +232 shares

    2.54% of the 13F portfolio, value $28,250,435.

    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 533,500 shares
    Change vs previous 13F +9,323 shares

    2.98% of the 13F portfolio, value $32,740,895.

    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 524,177 shares
    Change vs previous 13F +3,177 shares

    2.78% of the 13F portfolio, value $27,880,975.

    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 521,000 shares
    Change vs previous 13F +96,000 shares

    2.19% of the 13F portfolio, value $18,464,240.

    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 425,000 shares
    Change vs previous 13F not available

    1.67% of the 13F portfolio, value $14,819,750.

    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).