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MAIRS & POWER INC: TNC position timeline

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

MAIRS & POWER INC held 681,800 TNC 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 681,800 shares
    Change vs previous 13F -121,664 shares

    0.55% of the 13F portfolio, value $59,684,772.

    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 803,464 shares
    Change vs previous 13F -268,160 shares

    0.55% of the 13F portfolio, value $53,350,010.

    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 1,071,624 shares
    Change vs previous 13F -258,064 shares

    0.76% of the 13F portfolio, value $78,978,689.

    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 1,329,688 shares
    Change vs previous 13F -22,970 shares

    1.01% of the 13F portfolio, value $107,784,509.

    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 1,352,658 shares
    Change vs previous 13F -68,752 shares

    1.03% of the 13F portfolio, value $104,803,942.

    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).

  6. period ended2025-03-31
    13F 1,421,410 shares
    Change vs previous 13F +1,715 shares

    1.18% of the 13F portfolio, value $113,357,448.

    13F-HR 0001172661-25-002089 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).

  7. period ended2024-12-31
    13F 1,419,695 shares
    Change vs previous 13F +83,613 shares

    1.12% of the 13F portfolio, value $115,747,733.

    13F-HR 0001172661-25-000936 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).

  8. period ended2024-09-30
    13F 1,336,082 shares
    Change vs previous 13F not available

    1.21% of the 13F portfolio, value $128,317,315.

    13F-HR 0001172661-24-004776 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).