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Disclosery

Tairen Capital Ltd: AMBA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Tairen Capital Ltd on AMBA, newest first. How the timeline and the estimate are built.

Tairen Capital Ltd held 0 AMBA shares at 2025-09-30 per its 13F-HR filed 2025-11-13.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -146,000 shares

    13F-HR 0001652062-25-000005 filed by Tairen Capital Ltd
    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 ended2025-06-30
    13F 146,000 shares
    Change vs previous 13F -237,120 shares

    0.99% of the 13F portfolio, value $9,645,490.

    13F-HR 0001085146-25-004920 filed by Tairen Capital Ltd
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 383,120 shares
    Change vs previous 13F not available

    1.27% of the 13F portfolio, value $19,282,430.

    13F-HR 0001085146-25-003173 filed by Tairen Capital Ltd
    Filed (acceptance time not in the bulk data set), ingested

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