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Disclosery

FACTORY MUTUAL INSURANCE CO: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of FACTORY MUTUAL INSURANCE CO on BIIB, newest first. How the timeline and the estimate are built.

FACTORY MUTUAL INSURANCE CO held 0 BIIB shares at 2025-06-30 per its 13F-HR filed 2025-08-07.

the latest 13F is the newest step

  1. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -49,200 shares

    13F-HR 0001085146-25-004651 filed by FACTORY MUTUAL INSURANCE CO
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-03-31
    13F 49,200 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $6,732,528.

    13F-HR 0001085146-25-002161 filed by FACTORY MUTUAL INSURANCE CO
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2024-12-31
    13F 49,200 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $7,523,664.

    13F-HR 0001085146-25-000453 filed by FACTORY MUTUAL INSURANCE CO
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-09-30
    13F 49,200 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $9,536,928.

    13F-HR 0001085146-24-004830 filed by FACTORY MUTUAL INSURANCE CO
    Filed (acceptance time not in the bulk data set), ingested

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