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Disclosery

Spectrum Advisors, Inc.: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Spectrum Advisors, Inc. on BRK-B, newest first. How the timeline and the estimate are built.

Spectrum Advisors, Inc. held 2,175 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-10-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,175 shares
    Change vs previous 13F -1 shares

    0.77% of the 13F portfolio, value $1,088,348.

    13F-HR 0001214659-26-012644 filed by Spectrum Advisors, Inc.
    Accepted , ingested

  2. period ended2026-03-31
    13F 2,176 shares
    Change vs previous 13F not available

    0.82% of the 13F portfolio, value $1,042,739.

    13F-HR 0001214659-26-011606 filed by Spectrum Advisors, Inc.
    Accepted , ingested