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Blue Grotto Capital, LLC: MKSI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Blue Grotto Capital, LLC on MKSI, newest first. How the timeline and the estimate are built.

Blue Grotto Capital, LLC held 149,422 MKSI shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 149,422 shares
    Change vs previous 13F -225,578 shares

    5.55% of the 13F portfolio, value $66,462,906.

    13F-HR 0001315863-26-000563 filed by Blue Grotto Capital, 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 375,000 shares
    Change vs previous 13F -40,500 shares

    9.93% of the 13F portfolio, value $86,178,750.

    13F-HR 0001315863-26-000421 filed by Blue Grotto Capital, 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 415,500 shares
    Change vs previous 13F +203,652 shares

    6.82% of the 13F portfolio, value $66,396,901.

    13F-HR 0001315863-26-000154 filed by Blue Grotto Capital, 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 211,848 shares
    Change vs previous 13F +24,697 shares

    3.04% of the 13F portfolio, value $26,220,427.

    13F-HR 0001315863-25-000794 filed by Blue Grotto Capital, 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 187,151 shares
    Change vs previous 13F -168,070 shares

    2.24% of the 13F portfolio, value $18,595,323.

    13F-HR 0001315863-25-000628 filed by Blue Grotto Capital, 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 355,221 shares
    Change vs previous 13F +269,227 shares

    5.44% of the 13F portfolio, value $28,470,963.

    13F-HR 0001315863-25-000384 filed by Blue Grotto Capital, 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 85,994 shares
    Change vs previous 13F -14,007 shares

    1.64% of the 13F portfolio, value $8,976,913.

    13F-HR 0001315863-25-000154 filed by Blue Grotto Capital, 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 100,001 shares
    Change vs previous 13F not available

    2.02% of the 13F portfolio, value $10,871,109.

    13F-HR 0001315863-24-000824 filed by Blue Grotto Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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