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Disclosery

SG Americas Securities, LLC: MGNI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SG Americas Securities, LLC on MGNI, newest first. How the timeline and the estimate are built.

SG Americas Securities, LLC held 26,567 MGNI shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 26,567 shares
    Change vs previous 13F -30,670 shares

    <0.01% of the 13F portfolio, value $504,000.

    13F-HR 0001313360-26-000003 filed by SG Americas Securities, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2026-03-31
    13F 57,237 shares
    Change vs previous 13F -2,008 shares

    <0.01% of the 13F portfolio, value $680,000.

    13F-HR 0001313360-26-000002 filed by SG Americas Securities, 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 59,245 shares
    Change vs previous 13F +17,652 shares

    <0.01% of the 13F portfolio, value $962,000.

    13F-HR 0001313360-26-000001 filed by SG Americas Securities, 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 41,593 shares
    Change vs previous 13F +215 shares

    <0.01% of the 13F portfolio, value $906,000.

    13F-HR 0001313360-25-000008 filed by SG Americas Securities, 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 41,378 shares
    Change vs previous 13F +17,373 shares

    <0.01% of the 13F portfolio, value $998,000.

    13F-HR 0001313360-25-000006 filed by SG Americas Securities, 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 24,005 shares
    Change vs previous 13F +24,005 shares

    <0.01% of the 13F portfolio, value $274,000.

    13F-HR 0001313360-25-000005 filed by SG Americas Securities, 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 0 shares
    Change vs previous 13F -34,724 shares

    13F-HR 0001313360-25-000001 filed by SG Americas Securities, 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.

  8. period ended2024-09-30
    13F 34,724 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $481,000.

    13F-HR 0001313360-24-000010 filed by SG Americas Securities, LLC
    Filed (acceptance time not in the bulk data set), ingested

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