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Disclosery

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM on BRK-B, newest first. How the timeline and the estimate are built.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM held 2,149,115 BRK-B shares at 2026-06-30 per its 13F-HR/A filed 2026-08-24.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 2,149,115 shares
    Change vs previous 13F +77,116 shares

    0.99% of the 13F portfolio, value $1,075,395,655.

    13F-HR/A 0001081019-26-000020 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 2,071,999 shares
    Change vs previous 13F -56,288 shares

    1.05% of the 13F portfolio, value $992,901,921.

    13F-HR 0001081019-26-000007 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 2,128,287 shares
    Change vs previous 13F -9,585 shares

    1.07% of the 13F portfolio, value $1,069,783,461.

    13F-HR 0001081019-26-000004 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 2,137,872 shares
    Change vs previous 13F +24,607 shares

    1.1% of the 13F portfolio, value $1,074,793,769.

    13F-HR 0001081019-25-000025 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 2,113,265 shares
    Change vs previous 13F +53,063 shares

    1.14% of the 13F portfolio, value $1,026,560,739.

    13F-HR 0001081019-25-000018 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 2,060,202 shares
    Change vs previous 13F -8,864 shares

    1.36% of the 13F portfolio, value $1,097,222,381.

    13F-HR 0001081019-25-000012 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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/A 2,069,066 shares
    Change vs previous 13F -96,186 shares

    1.09% of the 13F portfolio, value $937,866,236.

    13F-HR/A 0001081019-25-000009 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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/A 2,165,252 shares
    Change vs previous 13F not available

    1.16% of the 13F portfolio, value $996,578,885.

    13F-HR/A 0001081019-25-000010 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    Filed (acceptance time not in the bulk data set), ingested

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