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REGENERON PHARMACEUTICALS, INC.: ALNY position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of REGENERON PHARMACEUTICALS, INC. on ALNY, newest first. How the timeline and the estimate are built.

REGENERON PHARMACEUTICALS, INC. held 0 ALNY shares at 2025-12-31 per its 13F-HR filed 2026-02-06.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -1,392,303 shares

    13F-HR 0001104659-26-011601 filed by REGENERON PHARMACEUTICALS, INC.
    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 ended2025-09-30
    13F 1,392,303 shares
    Change vs previous 13F -3,052,142 shares

    90.64% of the 13F portfolio, value $634,890,168.

    13F-HR 0001104659-25-108546 filed by REGENERON PHARMACEUTICALS, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-06-30
    13F 4,444,445 shares
    Change vs previous 13F 0 shares

    97.6% of the 13F portfolio, value $1,449,289,070.

    13F-HR 0001104659-25-073115 filed by REGENERON PHARMACEUTICALS, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-03-31
    13F 4,444,445 shares
    Change vs previous 13F 0 shares

    97.23% of the 13F portfolio, value $1,200,089,039.

    13F-HR 0001104659-25-044118 filed by REGENERON PHARMACEUTICALS, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-12-31
    13F 4,444,445 shares
    Change vs previous 13F not available

    95.54% of the 13F portfolio, value $1,045,822,353.

    13F-HR 0001104659-25-010583 filed by REGENERON PHARMACEUTICALS, INC.
    Filed (acceptance time not in the bulk data set), ingested

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