Skip to content
Disclosery

American Research & Management Co.: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of American Research & Management Co. on BIIB, newest first. How the timeline and the estimate are built.

American Research & Management Co. held 3,658 BIIB shares at 2022-09-30 per its 13F-HR filed 2022-10-07.

the latest 13F is the newest step

  1. period ended2022-09-30
    13F 3,658 shares
    Change vs previous 13F -335 shares

    0.27% of the 13F portfolio, value $977,000.

    13F-HR 0000909012-22-000112 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2022-06-30
    13F 3,993 shares
    Change vs previous 13F -596 shares

    0.21% of the 13F portfolio, value $814,000.

    13F-HR 0000909012-22-000079 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2022-03-31
    13F 4,589 shares
    Change vs previous 13F -355 shares

    0.21% of the 13F portfolio, value $966,000.

    13F-HR 0000909012-22-000052 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2021-12-31
    13F 4,944 shares
    Change vs previous 13F -1,095 shares

    0.26% of the 13F portfolio, value $1,186,000.

    13F-HR 0000909012-22-000017 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2021-09-30
    13F 6,039 shares
    Change vs previous 13F -410 shares

    0.39% of the 13F portfolio, value $1,709,000.

    13F-HR 0000909012-21-000134 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2021-06-30
    13F 6,449 shares
    Change vs previous 13F -202 shares

    0.51% of the 13F portfolio, value $2,233,000.

    13F-HR 0000909012-21-000100 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2021-03-31
    13F 6,651 shares
    Change vs previous 13F -140 shares

    0.45% of the 13F portfolio, value $1,861,000.

    13F-HR 0000909012-21-000060 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2020-12-31
    13F 6,791 shares
    Change vs previous 13F not available

    0.43% of the 13F portfolio, value $1,663,000.

    13F-HR 0000909012-21-000010 filed by American Research & Management Co.
    Filed (acceptance time not in the bulk data set), ingested

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