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MAIRS & POWER INC: SPY position timeline

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

MAIRS & POWER INC held 8,279 SPY 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 8,279 shares
    Change vs previous 13F -18,901 shares

    0.06% of the 13F portfolio, value $6,182,673.

    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 27,180 shares
    Change vs previous 13F +126 shares

    0.18% of the 13F portfolio, value $17,676,384.

    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 27,054 shares
    Change vs previous 13F +61 shares

    0.18% of the 13F portfolio, value $18,448,664.

    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 26,993 shares
    Change vs previous 13F -797 shares

    0.17% of the 13F portfolio, value $17,982,247.

    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 27,790 shares
    Change vs previous 13F +18,846 shares

    0.17% of the 13F portfolio, value $17,170,098.

    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 8,944 shares
    Change vs previous 13F -72 shares

    0.05% of the 13F portfolio, value $5,003,227.

    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 9,016 shares
    Change vs previous 13F -372 shares

    0.05% of the 13F portfolio, value $5,284,142.

    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 9,388 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $5,386,502.

    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).