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ADAGE CAPITAL PARTNERS GP, L.L.C.: IBM 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 IBM, newest first. How the timeline and the estimate are built.

ADAGE CAPITAL PARTNERS GP, L.L.C. held 898,190 IBM 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 898,190 shares
    Change vs previous 13F -39,200 shares

    0.35% of the 13F portfolio, value $252,580,010.

    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 937,390 shares
    Change vs previous 13F +53,500 shares

    0.35% of the 13F portfolio, value $227,213,962.

    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 883,890 shares
    Change vs previous 13F -33,252 shares

    0.4% of the 13F portfolio, value $261,817,057.

    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 917,142 shares
    Change vs previous 13F -64,048 shares

    0.41% of the 13F portfolio, value $258,780,787.

    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 981,190 shares
    Change vs previous 13F +88,000 shares

    0.49% of the 13F portfolio, value $289,235,188.

    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 893,190 shares
    Change vs previous 13F -41,300 shares

    0.41% of the 13F portfolio, value $222,100,625.

    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 934,490 shares
    Change vs previous 13F -143,800 shares

    0.36% of the 13F portfolio, value $205,428,937.

    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 1,078,290 shares
    Change vs previous 13F not available

    0.42% of the 13F portfolio, value $238,388,353.

    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).