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Disclosery

ADAGE CAPITAL PARTNERS GP, L.L.C.: REGN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ADAGE CAPITAL PARTNERS GP, L.L.C. on REGN, newest first. How the timeline and the estimate are built.

ADAGE CAPITAL PARTNERS GP, L.L.C. held 83,649 REGN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 83,649 shares
    Change vs previous 13F -19,448 shares

    0.07% of the 13F portfolio, value $52,158,497.

    13F-HR 0001172661-26-003503 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 103,097 shares
    Change vs previous 13F +20,651 shares

    0.12% of the 13F portfolio, value $79,656,866.

    13F-HR 0001172661-26-002029 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 82,446 shares
    Change vs previous 13F -40,600 shares

    0.1% of the 13F portfolio, value $63,637,594.

    13F-HR 0001172661-26-000912 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 123,046 shares
    Change vs previous 13F +27,416 shares

    0.11% of the 13F portfolio, value $69,185,074.

    13F-HR 0001172661-25-004959 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 95,630 shares
    Change vs previous 13F +2,885 shares

    0.08% of the 13F portfolio, value $50,205,750.

    13F-HR 0001172661-25-003279 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 92,745 shares
    Change vs previous 13F +48,396 shares

    0.11% of the 13F portfolio, value $58,821,661.

    13F-HR 0001172661-25-002042 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 44,349 shares
    Change vs previous 13F -125,290 shares

    0.06% of the 13F portfolio, value $31,591,123.

    13F-HR 0001172661-25-000948 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 169,639 shares
    Change vs previous 13F not available

    0.31% of the 13F portfolio, value $178,331,302.

    13F-HR 0001172661-24-004840 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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