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Old Port Advisors: GLW position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Old Port Advisors on GLW, newest first. How the timeline and the estimate are built.

Old Port Advisors held 80,112 GLW shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 80,112 shares
    Change vs previous 13F -3,248 shares

    4.04% of the 13F portfolio, value $20,463,072.

    13F-HR 0001744348-26-000003 filed by Old Port Advisors
    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 83,360 shares
    Change vs previous 13F -1,725 shares

    2.62% of the 13F portfolio, value $11,334,398.

    13F-HR 0001744348-26-000002 filed by Old Port Advisors
    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 85,085 shares
    Change vs previous 13F -1,698 shares

    1.84% of the 13F portfolio, value $7,450,046.

    13F-HR 0001744348-26-000001 filed by Old Port Advisors
    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 86,783 shares
    Change vs previous 13F -1,999 shares

    1.79% of the 13F portfolio, value $7,118,835.

    13F-HR 0001744348-25-000006 filed by Old Port Advisors
    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 88,782 shares
    Change vs previous 13F -626 shares

    1.27% of the 13F portfolio, value $4,669,022.

    13F-HR 0001744348-25-000004 filed by Old Port Advisors
    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 89,408 shares
    Change vs previous 13F -2,051 shares

    1.21% of the 13F portfolio, value $4,093,116.

    13F-HR 0001744348-25-000003 filed by Old Port Advisors
    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 91,459 shares
    Change vs previous 13F -1,871 shares

    1.25% of the 13F portfolio, value $4,346,135.

    13F-HR 0001744348-25-000001 filed by Old Port Advisors
    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 93,330 shares
    Change vs previous 13F not available

    1.17% of the 13F portfolio, value $4,213,846.

    13F-HR 0001744348-24-000004 filed by Old Port Advisors
    Filed (acceptance time not in the bulk data set), ingested

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