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Disclosery

HARBOR CAPITAL ADVISORS, INC.: MKSI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HARBOR CAPITAL ADVISORS, INC. on MKSI, newest first. How the timeline and the estimate are built.

HARBOR CAPITAL ADVISORS, INC. held 2,157 MKSI shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,157 shares
    Change vs previous 13F -1,996 shares

    0.07% of the 13F portfolio, value $959,000.

    13F-HR 0001039128-26-000003 filed by HARBOR CAPITAL ADVISORS, INC.
    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 4,153 shares
    Change vs previous 13F -14,068 shares

    0.08% of the 13F portfolio, value $954,000.

    13F-HR 0001039128-26-000002 filed by HARBOR CAPITAL ADVISORS, INC.
    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 18,221 shares
    Change vs previous 13F -5,510 shares

    0.23% of the 13F portfolio, value $2,912,000.

    13F-HR 0001039128-26-000001 filed by HARBOR CAPITAL ADVISORS, INC.
    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 23,731 shares
    Change vs previous 13F -76,045 shares

    0.23% of the 13F portfolio, value $2,937,000.

    13F-HR 0001039128-25-000005 filed by HARBOR CAPITAL ADVISORS, INC.
    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 99,776 shares
    Change vs previous 13F -9,979 shares

    0.42% of the 13F portfolio, value $9,914,000.

    13F-HR 0001039128-25-000003 filed by HARBOR CAPITAL ADVISORS, INC.
    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 109,755 shares
    Change vs previous 13F -5,752 shares

    0.4% of the 13F portfolio, value $8,797,000.

    13F-HR 0001039128-25-000002 filed by HARBOR CAPITAL ADVISORS, INC.
    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 115,507 shares
    Change vs previous 13F not available

    0.53% of the 13F portfolio, value $12,058,000.

    13F-HR 0001039128-25-000001 filed by HARBOR CAPITAL ADVISORS, INC.
    Filed (acceptance time not in the bulk data set), ingested

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