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Disclosery

GAMMA Investing LLC: GLW position timeline

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

GAMMA Investing LLC held 21,906 GLW shares at 2026-09-30 per its 13F-HR filed 2026-10-08.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 21,906 shares
    Change vs previous 13F +1,484 shares

    0.11% of the 13F portfolio, value $3,368,268.

    13F-HR 0002010235-26-000007 filed by GAMMA Investing LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 20,422 shares
    Change vs previous 13F +787 shares

    0.19% of the 13F portfolio, value $5,216,391.

    13F-HR 0002010235-26-000005 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 19,635 shares
    Change vs previous 13F +1,394 shares

    0.12% of the 13F portfolio, value $2,669,771.

    13F-HR 0002010235-26-000003 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 18,241 shares
    Change vs previous 13F +2,052 shares

    0.08% of the 13F portfolio, value $1,597,182.

    13F-HR 0002010235-26-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 16,189 shares
    Change vs previous 13F +2,198 shares

    0.07% of the 13F portfolio, value $1,327,984.

    13F-HR 0002010235-25-000009 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 13,991 shares
    Change vs previous 13F +2,633 shares

    0.05% of the 13F portfolio, value $735,787.

    13F-HR 0002010235-25-000007 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F/A 11,358 shares
    Change vs previous 13F +2,567 shares

    0.04% of the 13F portfolio, value $519,969.

    13F-HR/A 0002010235-25-000006 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 8,791 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $417,748.

    13F-HR 0002010235-25-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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