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Disclosery

Herold Advisors, Inc.: GLW position timeline

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

Herold Advisors, Inc. held 11,415 GLW shares at 2026-06-30 per its 13F-HR filed 2026-07-22.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 11,415 shares
    Change vs previous 13F -604 shares

    0.58% of the 13F portfolio, value $2,916,000.

    13F-HR 0001172661-26-002737 filed by Herold 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 12,019 shares
    Change vs previous 13F +350 shares

    0.36% of the 13F portfolio, value $1,634,227.

    13F-HR 0001172661-26-001982 filed by Herold 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 11,669 shares
    Change vs previous 13F +225 shares

    0.23% of the 13F portfolio, value $1,021,738.

    13F-HR 0001172661-26-001090 filed by Herold 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 11,444 shares
    Change vs previous 13F -1,600 shares

    0.22% of the 13F portfolio, value $938,751.

    13F-HR 0001172661-25-004762 filed by Herold 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 13,044 shares
    Change vs previous 13F 0 shares

    0.14% of the 13F portfolio, value $685,987.

    13F-HR 0001172661-25-003383 filed by Herold 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 13,044 shares
    Change vs previous 13F -110 shares

    0.13% of the 13F portfolio, value $597,154.

    13F-HR 0001172661-25-001744 filed by Herold 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 13,154 shares
    Change vs previous 13F +153 shares

    0.14% of the 13F portfolio, value $625,078.

    13F-HR 0001172661-25-001072 filed by Herold 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 13,001 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $586,995.

    13F-HR 0001172661-24-005010 filed by Herold Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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