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Senator Investment Group LP: DHR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Senator Investment Group LP on DHR, newest first. How the timeline and the estimate are built.

Senator Investment Group LP held 340,881 DHR shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 340,881 shares
    Change vs previous 13F -92,435 shares

    2.37% of the 13F portfolio, value $64,931,013.

    13F-HR 0001443689-26-000009 filed by Senator Investment Group LP
    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 433,316 shares
    Change vs previous 13F +263,900 shares

    3.77% of the 13F portfolio, value $82,156,714.

    13F-HR 0001443689-26-000006 filed by Senator Investment Group LP
    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 169,416 shares
    Change vs previous 13F +169,416 shares

    1.55% of the 13F portfolio, value $38,782,711.

    13F-HR 0001443689-26-000003 filed by Senator Investment Group LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -200,000 shares

    13F-HR 0001443689-25-000014 filed by Senator Investment Group LP
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  5. period ended2025-03-31
    13F 200,000 shares
    Change vs previous 13F not available

    2.18% of the 13F portfolio, value $41,000,000.

    13F-HR 0001443689-25-000009 filed by Senator Investment Group LP
    Filed (acceptance time not in the bulk data set), ingested

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