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Disclosery

Keystone Financial Services: GLW position timeline

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

Keystone Financial Services held 1,738 GLW shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,738 shares
    Change vs previous 13F -324 shares

    0.11% of the 13F portfolio, value $443,851.

    13F-HR 0001986152-26-000106 filed by Keystone Financial Services
    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 2,062 shares
    Change vs previous 13F -1,091 shares

    0.08% of the 13F portfolio, value $280,323.

    13F-HR 0001986152-26-000061 filed by Keystone Financial Services
    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 3,153 shares
    Change vs previous 13F -2 shares

    0.08% of the 13F portfolio, value $276,047.

    13F-HR 0001986152-26-000029 filed by Keystone Financial Services
    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 3,155 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $258,805.

    13F-HR 0001986152-25-000108 filed by Keystone Financial Services
    Filed (acceptance time not in the bulk data set), ingested

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