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Stephens Investment Management Group LLC: AMBA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Stephens Investment Management Group LLC on AMBA, newest first. How the timeline and the estimate are built.

Stephens Investment Management Group LLC held 728,486 AMBA shares at 2026-06-30 per its 13F-HR filed 2026-07-29.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 728,486 shares
    Change vs previous 13F +248,970 shares

    0.34% of the 13F portfolio, value $62,504,099.

    13F-HR 0001314440-26-000010 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 6,775 shares
    • Stephens Investment Management Group LLC: 721,711 shares

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

  2. period ended2026-03-31
    13F 479,516 shares
    Change vs previous 13F -1,292 shares

    0.16% of the 13F portfolio, value $24,683,087.

    13F-HR 0001314440-26-000006 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 4,375 shares
    • Stephens Investment Management Group LLC: 475,141 shares

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

  3. period ended2025-12-31
    13F 480,808 shares
    Change vs previous 13F -494 shares

    0.22% of the 13F portfolio, value $34,060,438.

    13F-HR 0001314440-26-000003 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 3,860 shares
    • Stephens Investment Management Group LLC: 476,948 shares

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

  4. period ended2025-09-30
    13F 481,302 shares
    Change vs previous 13F -16,294 shares

    0.26% of the 13F portfolio, value $39,717,041.

    13F-HR 0001314440-25-000016 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 3,804 shares
    • Stephens Investment Management Group LLC: 477,498 shares

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

  5. period ended2025-06-30
    13F 497,596 shares
    Change vs previous 13F -2,179 shares

    0.22% of the 13F portfolio, value $32,873,680.

    13F-HR 0001314440-25-000010 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 3,667 shares
    • Stephens Investment Management Group LLC: 493,929 shares

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

  6. period ended2025-03-31
    13F 499,775 shares
    Change vs previous 13F -7,199 shares

    0.36% of the 13F portfolio, value $25,153,676.

    13F-HR 0001314440-25-000006 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 0 shares
    • Stephens Investment Management Group LLC: 499,775 shares

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

  7. period ended2024-12-31
    13F 506,974 shares
    Change vs previous 13F +5,938 shares

    0.25% of the 13F portfolio, value $36,877,288.

    13F-HR 0001314440-25-000003 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

    • STEPHENS INC /AR/: 3,506 shares
    • Stephens Investment Management Group LLC: 503,468 shares

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

  8. period ended2024-09-30
    13F 501,036 shares
    Change vs previous 13F not available

    0.39% of the 13F portfolio, value $28,260,937.

    13F-HR 0001314440-24-000018 filed by Stephens Investment Management Group LLC
    Filed (acceptance time not in the bulk data set), ingested

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