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Polymer Capital Management (US) LLC: AMBA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Polymer Capital Management (US) LLC on AMBA, newest first. How the timeline and the estimate are built.

Polymer Capital Management (US) LLC held 20,355 AMBA shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 20,355 shares
    Change vs previous 13F +20,355 shares

    0.26% of the 13F portfolio, value $1,746,459.

    13F-HR 0001973324-26-000009 filed by Polymer Capital Management (US) LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -3,010 shares

    13F-HR 0001973324-26-000003 filed by Polymer Capital Management (US) 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.

  3. period ended2025-09-30
    13F 3,010 shares
    Change vs previous 13F -3,578 shares

    0.03% of the 13F portfolio, value $248,385.

    13F-HR 0001973324-25-000011 filed by Polymer Capital Management (US) LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 6,588 shares
    Change vs previous 13F -1,710 shares

    0.07% of the 13F portfolio, value $435,236.

    13F-HR 0001641447-25-000003 filed by Polymer Capital Management (US) LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 8,298 shares
    Change vs previous 13F +4,948 shares

    0.13% of the 13F portfolio, value $417,638.

    13F-HR 0001973324-25-000006 filed by Polymer Capital Management (US) LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 3,350 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $243,679.

    13F-HR 0001420506-25-000335 filed by Polymer Capital Management (US) LLC
    Filed (acceptance time not in the bulk data set), ingested

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