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CITADEL ADVISORS LLC: SPOK position timeline

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

CITADEL ADVISORS LLC held 183,447 SPOK shares at 2026-06-30 per its 13F-HR/A filed 2026-09-02.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 183,447 shares
    Change vs previous 13F +165,672 shares

    <0.01% of the 13F portfolio, value $1,878,497.

    13F-HR/A 0001104659-26-104387 filed by CITADEL ADVISORS LLC
    Accepted , ingested

  2. period ended2026-03-31
    13F 17,775 shares
    Change vs previous 13F -31,917 shares

    <0.01% of the 13F portfolio, value $193,748.

    13F-HR 0001104659-26-062477 filed by CITADEL ADVISORS LLC
    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 49,692 shares
    Change vs previous 13F +26,335 shares

    <0.01% of the 13F portfolio, value $655,437.

    13F-HR 0001104659-26-016408 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 23,357 shares
    Change vs previous 13F -42,060 shares

    <0.01% of the 13F portfolio, value $402,908.

    13F-HR 0001104659-25-112514 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 65,417 shares
    Change vs previous 13F -88,903 shares

    <0.01% of the 13F portfolio, value $1,156,573.

    13F-HR 0001104659-25-078555 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 154,320 shares
    Change vs previous 13F +123,508 shares

    <0.01% of the 13F portfolio, value $2,537,021.

    13F-HR 0000950123-25-005687 filed by CITADEL ADVISORS LLC
    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 30,812 shares
    Change vs previous 13F -51,645 shares

    <0.01% of the 13F portfolio, value $494,532.

    13F-HR 0000950123-25-002739 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 82,457 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,241,803.

    13F-HR 0000950123-24-011767 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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