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Disclosery

Sienna Gestion: REGN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Sienna Gestion on REGN, newest first. How the timeline and the estimate are built.

Sienna Gestion held 764 REGN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 764 shares
    Change vs previous 13F -735 shares

    0.03% of the 13F portfolio, value $488,090.

    13F-HR 0000945621-26-001042 filed by Sienna Gestion
    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 1,499 shares
    Change vs previous 13F 0 shares

    0.07% of the 13F portfolio, value $1,131,463.

    13F-HR 0000945621-26-000712 filed by Sienna Gestion
    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 1,499 shares
    Change vs previous 13F +1,004 shares

    0.07% of the 13F portfolio, value $1,154,364.

    13F-HR 0000945621-26-000314 filed by Sienna Gestion
    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 495 shares
    Change vs previous 13F -9,627 shares

    0.02% of the 13F portfolio, value $253,760.

    13F-HR 0000945621-25-001073 filed by Sienna Gestion
    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 10,122 shares
    Change vs previous 13F +957 shares

    0.33% of the 13F portfolio, value $4,851,663.

    13F-HR 0000945621-25-000651 filed by Sienna Gestion
    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 9,165 shares
    Change vs previous 13F -566 shares

    0.46% of the 13F portfolio, value $5,650,207.

    13F-HR 0000945621-25-000460 filed by Sienna Gestion
    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 9,731 shares
    Change vs previous 13F 0 shares

    0.47% of the 13F portfolio, value $6,930,679.

    13F-HR 0000945621-25-000148 filed by Sienna Gestion
    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 9,731 shares
    Change vs previous 13F not available

    0.68% of the 13F portfolio, value $10,204,872.

    13F-HR 0000945621-24-000939 filed by Sienna Gestion
    Filed (acceptance time not in the bulk data set), ingested

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