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HARBOR CAPITAL ADVISORS, INC.: MGNI position timeline

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

HARBOR CAPITAL ADVISORS, INC. held 312,371 MGNI 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 312,371 shares
    Change vs previous 13F -12,890 shares

    0.4% of the 13F portfolio, value $5,929,000.

    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 325,261 shares
    Change vs previous 13F +111,010 shares

    0.31% of the 13F portfolio, value $3,864,000.

    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 214,251 shares
    Change vs previous 13F +42,080 shares

    0.27% of the 13F portfolio, value $3,477,000.

    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 172,171 shares
    Change vs previous 13F -461,976 shares

    0.29% of the 13F portfolio, value $3,750,000.

    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 634,147 shares
    Change vs previous 13F +42,834 shares

    0.64% of the 13F portfolio, value $15,296,000.

    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 591,313 shares
    Change vs previous 13F -251,448 shares

    0.31% of the 13F portfolio, value $6,747,000.

    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 842,761 shares
    Change vs previous 13F -78,770 shares

    0.59% of the 13F portfolio, value $13,417,000.

    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).

  8. period ended2024-09-30
    13F 921,531 shares
    Change vs previous 13F not available

    0.55% of the 13F portfolio, value $12,763,000.

    13F-HR 0001039128-24-000005 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).