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BLAIR WILLIAM & CO/IL: MAIN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on MAIN, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 38,675 MAIN shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 38,675 shares
    Change vs previous 13F -365 shares

    0.01% of the 13F portfolio, value $2,006,436.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 39,040 shares
    Change vs previous 13F +244 shares

    0.01% of the 13F portfolio, value $2,067,535.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 38,796 shares
    Change vs previous 13F -2,276 shares

    0.01% of the 13F portfolio, value $2,342,864.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 41,072 shares
    Change vs previous 13F -100 shares

    0.01% of the 13F portfolio, value $2,611,741.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 41,172 shares
    Change vs previous 13F 0 shares

    0.01% of the 13F portfolio, value $2,433,239.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 41,172 shares
    Change vs previous 13F -42 shares

    0.01% of the 13F portfolio, value $2,328,664.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 41,214 shares
    Change vs previous 13F +872 shares

    0.01% of the 13F portfolio, value $2,414,290.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 40,342 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $2,022,726.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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