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Disclosery

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND on BRK-B, newest first. How the timeline and the estimate are built.

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND held 255,806 BRK-B 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 255,806 shares
    Change vs previous 13F -278,678 shares

    0.18% of the 13F portfolio, value $128,002,764.

    13F-HR 0001535845-26-000007 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    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 534,484 shares
    Change vs previous 13F -23,375 shares

    0.42% of the 13F portfolio, value $256,124,733.

    13F-HR 0001535845-26-000004 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    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 557,859 shares
    Change vs previous 13F -131,599 shares

    0.47% of the 13F portfolio, value $280,407,826.

    13F-HR 0001535845-26-000002 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    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 689,458 shares
    Change vs previous 13F +211,813 shares

    0.64% of the 13F portfolio, value $346,618,115.

    13F-HR 0001535845-25-000013 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    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 477,645 shares
    Change vs previous 13F +113,729 shares

    0.47% of the 13F portfolio, value $232,025,612.

    13F-HR 0001535845-25-000009 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    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 363,916 shares
    Change vs previous 13F -161,194 shares

    0.43% of the 13F portfolio, value $193,814,383.

    13F-HR 0001535845-25-000006 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    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 525,110 shares
    Change vs previous 13F not available

    0.51% of the 13F portfolio, value $238,021,861.

    13F-HR 0001535845-25-000004 filed by HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
    Filed (acceptance time not in the bulk data set), ingested

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