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FRED ALGER MANAGEMENT, LLC: GKOS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of FRED ALGER MANAGEMENT, LLC on GKOS, newest first. How the timeline and the estimate are built.

FRED ALGER MANAGEMENT, LLC held 125,911 GKOS 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 125,911 shares
    Change vs previous 13F +11,968 shares

    0.06% of the 13F portfolio, value $17,597,322.

    13F-HR 0001193125-26-352250 filed by FRED ALGER 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 113,943 shares
    Change vs previous 13F -211,597 shares

    0.05% of the 13F portfolio, value $12,267,104.

    13F-HR 0001193125-26-226659 filed by FRED ALGER 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 325,540 shares
    Change vs previous 13F +8,736 shares

    0.14% of the 13F portfolio, value $36,756,721.

    13F-HR 0001193125-26-052991 filed by FRED ALGER 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 316,804 shares
    Change vs previous 13F -109,170 shares

    0.1% of the 13F portfolio, value $25,835,366.

    13F-HR 0001193125-25-282909 filed by FRED ALGER 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 425,974 shares
    Change vs previous 13F -179,716 shares

    0.2% of the 13F portfolio, value $43,998,855.

    13F-HR 0000950123-25-008360 filed by FRED ALGER 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 605,690 shares
    Change vs previous 13F -159,268 shares

    0.34% of the 13F portfolio, value $59,612,011.

    13F-HR 0000950123-25-005777 filed by FRED ALGER 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 764,958 shares
    Change vs previous 13F -312,016 shares

    0.55% of the 13F portfolio, value $114,697,803.

    13F-HR 0000950123-25-002764 filed by FRED ALGER 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 1,076,974 shares
    Change vs previous 13F not available

    0.68% of the 13F portfolio, value $140,308,173.

    13F-HR 0000950123-24-011836 filed by FRED ALGER MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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