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ArrowMark Colorado Holdings LLC: TNDM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ArrowMark Colorado Holdings LLC on TNDM, newest first. How the timeline and the estimate are built.

ArrowMark Colorado Holdings LLC held 1,299,586 TNDM 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 1,299,586 shares
    Change vs previous 13F -1,804,023 shares

    0.82% of the 13F portfolio, value $19,610,753.

    13F-HR 0001172661-26-003384 filed by ArrowMark Colorado Holdings 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 3,103,609 shares
    Change vs previous 13F +213,918 shares

    1.58% of the 13F portfolio, value $59,496,185.

    13F-HR 0001172661-26-002286 filed by ArrowMark Colorado Holdings 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 2,889,691 shares
    Change vs previous 13F -801,507 shares

    1.4% of the 13F portfolio, value $63,515,408.

    13F-HR 0001172661-26-001050 filed by ArrowMark Colorado Holdings 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 3,691,198 shares
    Change vs previous 13F +991,649 shares

    0.83% of the 13F portfolio, value $44,811,144.

    13F-HR 0001172661-25-005041 filed by ArrowMark Colorado Holdings 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 2,699,549 shares
    Change vs previous 13F -16,783 shares

    0.91% of the 13F portfolio, value $50,319,593.

    13F-HR 0001172661-25-003450 filed by ArrowMark Colorado Holdings 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 2,716,332 shares
    Change vs previous 13F -7,383 shares

    0.84% of the 13F portfolio, value $52,044,921.

    13F-HR 0001172661-25-002341 filed by ArrowMark Colorado Holdings 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 2,723,715 shares
    Change vs previous 13F +337,026 shares

    1.32% of the 13F portfolio, value $98,108,214.

    13F-HR 0001172661-25-001120 filed by ArrowMark Colorado Holdings 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 2,386,689 shares
    Change vs previous 13F not available

    1.3% of the 13F portfolio, value $101,219,480.

    13F-HR 0001172661-24-005155 filed by ArrowMark Colorado Holdings LLC
    Filed (acceptance time not in the bulk data set), ingested

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