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Disclosery

Atika Capital Management LLC: AMZN position timeline

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

Atika Capital Management LLC held 44,000 AMZN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 44,000 shares
    Change vs previous 13F +300 shares

    1.04% of the 13F portfolio, value $10,486,959.

    13F-HR 0001214659-26-010035 filed by Atika Capital Management 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 43,700 shares
    Change vs previous 13F -36,300 shares

    1.44% of the 13F portfolio, value $9,101,400.

    13F-HR 0001214659-26-006119 filed by Atika Capital Management 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 80,000 shares
    Change vs previous 13F -317,049 shares

    2.57% of the 13F portfolio, value $18,465,600.

    13F-HR 0001214659-26-001658 filed by Atika Capital Management 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 397,049 shares
    Change vs previous 13F -1,200 shares

    7.43% of the 13F portfolio, value $87,180,049.

    13F-HR 0001214659-25-016379 filed by Atika Capital Management 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 398,249 shares
    Change vs previous 13F +85,000 shares

    9.13% of the 13F portfolio, value $87,371,848.

    13F-HR 0001214659-25-011890 filed by Atika Capital Management 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 313,249 shares
    Change vs previous 13F +132,999 shares

    9.15% of the 13F portfolio, value $59,598,756.

    13F-HR 0001214659-25-007540 filed by Atika Capital Management 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 180,250 shares
    Change vs previous 13F -51,750 shares

    5.12% of the 13F portfolio, value $39,545,048.

    13F-HR 0001214659-25-002515 filed by Atika Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 232,000 shares
    Change vs previous 13F not available

    4.62% of the 13F portfolio, value $43,228,560.

    13F-HR 0001214659-24-018802 filed by Atika Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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