Skip to content
Disclosery

Boston Trust Walden Corp: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Boston Trust Walden Corp on BIIB, newest first. How the timeline and the estimate are built.

Boston Trust Walden Corp held 1,263,429 BIIB shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,263,429 shares
    Change vs previous 13F -436,649 shares

    0.24% of the 13F portfolio, value $272,849,469.

    13F-HR 0001386060-26-000035 filed by Boston Partners
    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 1,700,078 shares
    Change vs previous 13F -20,517 shares

    0.33% of the 13F portfolio, value $311,657,547.

    13F-HR 0001386060-26-000017 filed by Boston Partners
    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 1,720,595 shares
    Change vs previous 13F not available

    0.31% of the 13F portfolio, value $302,815,433.

    13F-HR 0001386060-26-000014 filed by Boston Partners
    Filed (acceptance time not in the bulk data set), ingested

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