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ADAGE CAPITAL PARTNERS GP, L.L.C.: KLAC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ADAGE CAPITAL PARTNERS GP, L.L.C. on KLAC, newest first. How the timeline and the estimate are built.

ADAGE CAPITAL PARTNERS GP, L.L.C. held 914,840 KLAC 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 914,840 shares
    Change vs previous 13F +819,886 shares

    0.39% of the 13F portfolio, value $276,016,376.

    13F-HR 0001172661-26-003503 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 94,954 shares
    Change vs previous 13F -9,900 shares

    0.22% of the 13F portfolio, value $139,811,219.

    13F-HR 0001172661-26-002029 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 104,854 shares
    Change vs previous 13F +15,000 shares

    0.19% of the 13F portfolio, value $127,405,998.

    13F-HR 0001172661-26-000912 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 89,854 shares
    Change vs previous 13F -11,600 shares

    0.15% of the 13F portfolio, value $96,916,524.

    13F-HR 0001172661-25-004959 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 101,454 shares
    Change vs previous 13F -200 shares

    0.15% of the 13F portfolio, value $90,876,406.

    13F-HR 0001172661-25-003279 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 101,654 shares
    Change vs previous 13F -3,200 shares

    0.13% of the 13F portfolio, value $69,104,389.

    13F-HR 0001172661-25-002042 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 104,854 shares
    Change vs previous 13F +18,184 shares

    0.12% of the 13F portfolio, value $66,070,602.

    13F-HR 0001172661-25-000948 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    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 86,670 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $67,118,115.

    13F-HR 0001172661-24-004840 filed by ADAGE CAPITAL PARTNERS GP, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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