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Disclosery

Tairen Capital Ltd: BIRK position timeline

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

Tairen Capital Ltd held 0 BIRK shares at 2025-12-31 per its 13F-HR filed 2026-02-17.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -276,200 shares

    13F-HR 0001652062-26-000003 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 ended2025-09-30
    13F 276,200 shares
    Change vs previous 13F 0 shares

    1.35% of the 13F portfolio, value $12,498,050.

    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).

  3. period ended2025-06-30
    13F 276,200 shares
    Change vs previous 13F +136,200 shares

    1.39% of the 13F portfolio, value $13,583,516.

    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).

  4. period ended2025-03-31
    13F 140,000 shares
    Change vs previous 13F +120,000 shares

    0.42% of the 13F portfolio, value $6,419,000.

    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).

  5. period ended2024-12-31
    13F 20,000 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $1,133,200.

    13F-HR 0001085146-25-001482 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).