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Disclosery

Red Tortoise LLC: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Red Tortoise LLC on BIIB, newest first. How the timeline and the estimate are built.

Red Tortoise LLC held 74 BIIB shares at 2026-03-31 per its 13F-HR filed 2026-04-21.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 74 shares
    Change vs previous 13F -6 shares

    0.01% of the 13F portfolio, value $13,566.

    13F-HR 0001910488-26-000002 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-12-31
    13F 80 shares
    Change vs previous 13F -9 shares

    0.01% of the 13F portfolio, value $14,079.

    13F-HR 0001910488-26-000001 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 89 shares
    Change vs previous 13F 0 shares

    0.01% of the 13F portfolio, value $12,467.

    13F-HR 0001910488-25-000005 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 89 shares
    Change vs previous 13F +76 shares

    0.01% of the 13F portfolio, value $11,178.

    13F-HR 0001910488-25-000004 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 13 shares
    Change vs previous 13F -35 shares

    <0.01% of the 13F portfolio, value $1,779.

    13F-HR 0001910488-25-000003 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 48 shares
    Change vs previous 13F +20 shares

    <0.01% of the 13F portfolio, value $7,340.

    13F-HR 0001910488-25-000001 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 28 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $5,428.

    13F-HR 0001910488-24-000004 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-06-30
    13F 28 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $6,491.

    13F-HR 0001910488-24-000003 filed by Red Tortoise LLC
    Filed (acceptance time not in the bulk data set), ingested

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