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Disclosery

Cornerstone Advisors, LLC: QQQX position timeline

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

Cornerstone Advisors, LLC held 0 QQQX shares at 2025-12-31 per its 13F-HR filed 2026-02-13.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -202,047 shares

    13F-HR 0001398344-26-003109 filed by Cornerstone Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-09-30
    13F 202,047 shares
    Change vs previous 13F -365,176 shares

    0.18% of the 13F portfolio, value $5,548,211.

    13F-HR 0001398344-25-020535 filed by Cornerstone 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 ended2025-06-30
    13F 567,223 shares
    Change vs previous 13F -356,446 shares

    0.52% of the 13F portfolio, value $15,014,393.

    13F-HR 0001398344-25-014846 filed by Cornerstone 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 ended2025-03-31
    13F 923,669 shares
    Change vs previous 13F -195,615 shares

    0.94% of the 13F portfolio, value $21,937,139.

    13F-HR 0001398344-25-009115 filed by Cornerstone 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 ended2024-12-31
    13F 1,119,284 shares
    Change vs previous 13F -25,600 shares

    1.21% of the 13F portfolio, value $30,276,632.

    13F-HR 0001398344-25-002231 filed by Cornerstone 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 ended2024-09-30
    13F 1,144,884 shares
    Change vs previous 13F not available

    1.14% of the 13F portfolio, value $28,759,486.

    13F-HR 0001398344-24-020355 filed by Cornerstone Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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