Skip to content
Disclosery

Citadel Investment Advisory, Inc.: CMCSA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Citadel Investment Advisory, Inc. on CMCSA, newest first. How the timeline and the estimate are built.

Citadel Investment Advisory, Inc. held 15,830 CMCSA shares at 2026-09-30 per its 13F-HR filed 2026-10-15.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 15,830 shares
    Change vs previous 13F +200 shares

    0.16% of the 13F portfolio, value $344,000.

    13F-HR 0001811907-26-000005 filed by Citadel Investment Advisory, Inc.
    Accepted , ingested

  2. period ended2026-06-30
    13F 15,630 shares
    Change vs previous 13F -400 shares

    0.17% of the 13F portfolio, value $384,000.

    13F-HR 0001811907-26-000003 filed by Citadel Investment Advisory, Inc.
    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 16,030 shares
    Change vs previous 13F -200 shares

    0.22% of the 13F portfolio, value $460,000.

    13F-HR 0001811907-26-000002 filed by Citadel Investment Advisory, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 16,230 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $485,000.

    13F-HR 0001811907-26-000001 filed by Citadel Investment Advisory, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 16,230 shares
    Change vs previous 13F -200 shares

    0.23% of the 13F portfolio, value $510,000.

    13F-HR 0001811907-25-000005 filed by Citadel Investment Advisory, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 16,430 shares
    Change vs previous 13F -1,450 shares

    0.28% of the 13F portfolio, value $586,000.

    13F-HR 0001811907-25-000003 filed by Citadel Investment Advisory, Inc.
    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 17,880 shares
    Change vs previous 13F 0 shares

    0.32% of the 13F portfolio, value $660,000.

    13F-HR 0001811907-25-000002 filed by Citadel Investment Advisory, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 17,880 shares
    Change vs previous 13F not available

    0.35% of the 13F portfolio, value $671,000.

    13F-HR 0001811907-25-000001 filed by Citadel Investment Advisory, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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