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PIN OAK INVESTMENT ADVISORS INC: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PIN OAK INVESTMENT ADVISORS INC on BRK-B, newest first. How the timeline and the estimate are built.

PIN OAK INVESTMENT ADVISORS INC held 5,833 BRK-B shares at 2026-06-30 per its 13F-HR/A filed 2026-08-18.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 5,833 shares
    Change vs previous 13F +629 shares

    2.08% of the 13F portfolio, value $2,919,000.

    13F-HR/A 0001094584-26-000004 filed by PIN OAK INVESTMENT ADVISORS INC
    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 5,204 shares
    Change vs previous 13F -37 shares

    1.76% of the 13F portfolio, value $2,494,000.

    13F-HR 0001094584-26-000002 filed by PIN OAK INVESTMENT ADVISORS INC
    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 5,241 shares
    Change vs previous 13F +38 shares

    1.87% of the 13F portfolio, value $2,663,000.

    13F-HR 0001094584-26-000001 filed by PIN OAK INVESTMENT ADVISORS INC
    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 5,203 shares
    Change vs previous 13F +434 shares

    1.87% of the 13F portfolio, value $2,615,756.

    13F-HR 0001094584-25-000005 filed by PIN OAK INVESTMENT ADVISORS INC
    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 4,769 shares
    Change vs previous 13F -157 shares

    2.15% of the 13F portfolio, value $2,539,000.

    13F-HR 0001094584-25-000003 filed by PIN OAK INVESTMENT ADVISORS INC
    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 4,926 shares
    Change vs previous 13F +356 shares

    1.91% of the 13F portfolio, value $2,510,000.

    13F-HR 0001094584-25-000002 filed by PIN OAK INVESTMENT ADVISORS INC
    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 4,570 shares
    Change vs previous 13F +293 shares

    1.91% of the 13F portfolio, value $2,103,000.

    13F-HR 0001094584-25-000001 filed by PIN OAK INVESTMENT ADVISORS INC
    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 4,277 shares
    Change vs previous 13F not available

    1.79% of the 13F portfolio, value $1,968,000.

    13F-HR 0001094584-24-000004 filed by PIN OAK INVESTMENT ADVISORS INC
    Filed (acceptance time not in the bulk data set), ingested

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