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ArrowMark Colorado Holdings LLC: MIR position timeline

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

ArrowMark Colorado Holdings LLC held 588,240 MIR 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 588,240 shares
    Change vs previous 13F +13,085 shares

    0.44% of the 13F portfolio, value $10,547,143.

    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 575,155 shares
    Change vs previous 13F -140,910 shares

    0.28% of the 13F portfolio, value $10,692,131.

    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 716,065 shares
    Change vs previous 13F -93,155 shares

    0.37% of the 13F portfolio, value $16,770,242.

    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 809,220 shares
    Change vs previous 13F -868,292 shares

    0.35% of the 13F portfolio, value $18,822,457.

    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 1,677,512 shares
    Change vs previous 13F -511,414 shares

    0.65% of the 13F portfolio, value $36,116,833.

    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 2,188,926 shares
    Change vs previous 13F -179,624 shares

    0.51% of the 13F portfolio, value $31,739,427.

    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 2,368,550 shares
    Change vs previous 13F -631,510 shares

    0.56% of the 13F portfolio, value $41,331,198.

    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 3,000,060 shares
    Change vs previous 13F not available

    0.43% of the 13F portfolio, value $33,210,664.

    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).