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Kovack Advisors, Inc.: GLW position timeline

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

Kovack Advisors, Inc. held 18,857 GLW shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 18,857 shares
    Change vs previous 13F +1,774 shares

    0.22% of the 13F portfolio, value $4,614,827.

    13F-HR 0001728321-26-000004 filed by Kovack 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 17,083 shares
    Change vs previous 13F +4,086 shares

    0.13% of the 13F portfolio, value $2,343,540.

    13F-HR 0001728321-26-000003 filed by Kovack 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/A 12,997 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $1,138,026.

    13F-HR/A 0001728321-26-000002 filed by Kovack Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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