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Atika Capital Management LLC: GH position timeline

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

Atika Capital Management LLC held 181,000 GH 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 181,000 shares
    Change vs previous 13F +90,000 shares

    2.69% of the 13F portfolio, value $27,155,430.

    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 91,000 shares
    Change vs previous 13F -17,000 shares

    1.33% of the 13F portfolio, value $8,405,670.

    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 108,000 shares
    Change vs previous 13F -25,000 shares

    1.54% of the 13F portfolio, value $11,031,120.

    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 133,000 shares
    Change vs previous 13F +43,800 shares

    0.71% of the 13F portfolio, value $8,309,839.

    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 89,200 shares
    Change vs previous 13F +3,700 shares

    0.48% of the 13F portfolio, value $4,641,968.

    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 85,500 shares
    Change vs previous 13F not available

    0.56% of the 13F portfolio, value $3,642,299.

    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).