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Disclosery

MAIRS & POWER INC: GLW position timeline

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

MAIRS & POWER INC held 85,447 GLW 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 85,447 shares
    Change vs previous 13F -2,803 shares

    0.2% of the 13F portfolio, value $21,825,727.

    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 88,250 shares
    Change vs previous 13F -2,100 shares

    0.12% of the 13F portfolio, value $11,999,353.

    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 90,350 shares
    Change vs previous 13F -2,276 shares

    0.08% of the 13F portfolio, value $7,911,046.

    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 92,626 shares
    Change vs previous 13F -594 shares

    0.07% of the 13F portfolio, value $7,598,111.

    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 93,220 shares
    Change vs previous 13F +3,975 shares

    0.05% of the 13F portfolio, value $4,902,440.

    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 89,245 shares
    Change vs previous 13F -3,025 shares

    0.04% of the 13F portfolio, value $4,085,636.

    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 92,270 shares
    Change vs previous 13F -6,916 shares

    0.04% of the 13F portfolio, value $4,384,670.

    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 99,186 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $4,478,248.

    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).