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Disclosery

MAIRS & POWER INC: IDA position timeline

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

MAIRS & POWER INC held 309,970 IDA 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 309,970 shares
    Change vs previous 13F +8,593 shares

    0.43% of the 13F portfolio, value $46,898,461.

    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 301,377 shares
    Change vs previous 13F -1,131 shares

    0.44% of the 13F portfolio, value $43,087,870.

    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 302,508 shares
    Change vs previous 13F +15,340 shares

    0.37% of the 13F portfolio, value $38,285,412.

    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).

  4. period ended2025-09-30
    13F 287,168 shares
    Change vs previous 13F +42,658 shares

    0.36% of the 13F portfolio, value $37,949,251.

    13F-HR 0001172661-25-004985 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).

  5. period ended2025-06-30
    13F 244,510 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $28,228,680.

    13F-HR 0001172661-25-003391 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).