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Disclosery

MAIRS & POWER INC: ISRG position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MAIRS & POWER INC on ISRG, newest first. How the timeline and the estimate are built.

MAIRS & POWER INC held 146,459 ISRG 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 146,459 shares
    Change vs previous 13F +46,574 shares

    0.53% of the 13F portfolio, value $58,243,815.

    13F-HR 0001172661-26-003496 filed by MAIRS & POWER INC
    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 99,885 shares
    Change vs previous 13F +37,608 shares

    0.47% of the 13F portfolio, value $46,045,986.

    13F-HR 0001172661-26-001819 filed by MAIRS & POWER INC
    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 62,277 shares
    Change vs previous 13F not available

    0.34% of the 13F portfolio, value $35,271,202.

    13F-HR 0001172661-26-001057 filed by MAIRS & POWER INC
    Filed (acceptance time not in the bulk data set), ingested

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