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Disclosery

Citadel Investment Advisory, Inc.: IDXX position timeline

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

Citadel Investment Advisory, Inc. held 3,637 IDXX 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 3,637 shares
    Change vs previous 13F +151 shares

    0.87% of the 13F portfolio, value $1,899,000.

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

  2. period ended2026-06-30
    13F 3,486 shares
    Change vs previous 13F -5 shares

    0.83% of the 13F portfolio, value $1,835,000.

    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 3,491 shares
    Change vs previous 13F -191 shares

    0.94% of the 13F portfolio, value $1,962,000.

    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 3,682 shares
    Change vs previous 13F 0 shares

    1.01% of the 13F portfolio, value $2,346,000.

    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 3,682 shares
    Change vs previous 13F 0 shares

    1.08% of the 13F portfolio, value $2,346,000.

    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 3,682 shares
    Change vs previous 13F +47 shares

    0.96% of the 13F portfolio, value $1,975,000.

    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 3,635 shares
    Change vs previous 13F -25 shares

    0.75% of the 13F portfolio, value $1,527,000.

    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 3,660 shares
    Change vs previous 13F not available

    0.78% of the 13F portfolio, value $1,513,000.

    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).