Mairs and Power's GLW Position Overview
Mairs and Power (via Mairs & Power INC) currently holds 90,350 shares of Corning Incorporated (GLW) worth $7.91 M, representing 0.08% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mairs and Power has maintained a long-term strategic position in GLW, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2019, adding 204,303 shares. Largest reduction occurred in Q1 2022, reducing 1.28 M shares.
Analysis based on 13F filings available since 2013 Q2
Mairs and Power's Corning Incorporated (GLW) Holding Value Over Time
Track share changes against reported price movement
Quarterly Corning Incorporated (GLW) Trades by Mairs and Power
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -2,276 | Reduce 2.46% | 90,350 | $87.56 |
| Q3 2025 | -594 | Reduce 0.64% | 92,626 | $82.03 |
| Q2 2025 | +3,975 | Add 4.45% | 93,220 | $52.59 |
| Q1 2025 | -3,025 | Reduce 3.28% | 89,245 | $45.78 |
| Q4 2024 | -6,916 | Reduce 6.97% | 92,270 | $47.52 |
| Q3 2024 | -7,869 | Reduce 7.35% | 99,186 | $45.15 |
| Q2 2024 | -18,405 | Reduce 14.67% | 107,055 | $38.85 |
| Q1 2024 | -38,736 | Reduce 23.59% | 125,460 | $32.96 |
| Q4 2023 | -27,315 | Reduce 14.26% | 164,196 | $30.45 |
| Q3 2023 | -28,650 | Reduce 13.01% | 191,511 | $30.47 |
| Q2 2023 | -63,012 | Reduce 22.25% | 220,161 | $35.04 |
| Q1 2023 | -49,991 | Reduce 15.00% | 283,173 | $35.28 |
| Q4 2022 | -13,907 | Reduce 4.01% | 333,164 | $31.94 |
| Q3 2022 | -1,216 | Reduce 0.35% | 347,071 | $29.02 |
| Q2 2022 | -73,618 | Reduce 17.45% | 348,287 | $31.51 |
| Q1 2022 | -1.28 M | Reduce 75.22% | 421,905 | $36.91 |
| Q4 2021 | -15,093 | Reduce 0.88% | 1.7 M | $37.23 |
| Q3 2021 | +174 | Add 0.01% | 1.72 M | $36.49 |
| Q2 2021 | -9,403 | Reduce 0.54% | 1.72 M | $40.90 |
| Q1 2021 | -31,895 | Reduce 1.81% | 1.73 M | $43.51 |
| Q4 2020 | -268,333 | Reduce 13.24% | 1.76 M | $36.00 |
| Q3 2020 | -180,221 | Reduce 8.16% | 2.03 M | $32.41 |
| Q2 2020 | -199,699 | Reduce 8.30% | 2.21 M | $25.90 |
| Q1 2020 | -5,773 | Reduce 0.24% | 2.41 M | $20.54 |
| Q4 2019 | -20,589 | Reduce 0.85% | 2.41 M | $29.11 |
| Q3 2019 | +204,303 | Add 9.17% | 2.43 M | $28.52 |
| Q2 2019 | +120,495 | Add 5.71% | 2.23 M | $33.23 |
| Q1 2019 | -19,303 | Reduce 0.91% | 2.11 M | $33.10 |
| Q4 2018 | -11,855 | Reduce 0.55% | 2.13 M | $30.21 |
| Q3 2018 | -184,887 | Reduce 7.95% | 2.14 M | $35.30 |
| Q2 2018 | -39,547 | Reduce 1.67% | 2.32 M | $27.51 |
| Q1 2018 | -56,520 | Reduce 2.33% | 2.36 M | $27.88 |
| Q4 2017 | -40,129 | Reduce 1.63% | 2.42 M | $31.99 |
| Q3 2017 | -77,890 | Reduce 3.07% | 2.46 M | $29.92 |
| Q2 2017 | -19,728 | Reduce 0.77% | 2.54 M | $30.05 |
| Q1 2017 | -3,294 | Reduce 0.13% | 2.56 M | $27.00 |
| Q4 2016 | -302,070 | Reduce 10.55% | 2.56 M | $24.27 |
| Q3 2016 | -85,160 | Reduce 2.89% | 2.86 M | $23.65 |
| Q2 2016 | -21,330 | Reduce 0.72% | 2.95 M | $20.48 |
| Q1 2016 | -14,666 | Reduce 0.49% | 2.97 M | $20.89 |
| Q4 2015 | -21,682 | Reduce 0.72% | 2.98 M | $18.28 |
| Q3 2015 | -8,150 | Reduce 0.27% | 3.01 M | $17.12 |
| Q2 2015 | -6,165 | Reduce 0.20% | 3.01 M | $19.73 |
| Q1 2015 | -244,516 | Reduce 7.49% | 3.02 M | $22.68 |
| Q4 2014 | -142,120 | Reduce 4.17% | 3.27 M | $22.93 |
| Q3 2014 | -172,945 | Reduce 4.83% | 3.41 M | $19.34 |
| Q2 2014 | -571,458 | Reduce 13.76% | 3.58 M | $21.95 |
| Q1 2014 | -56,572 | Reduce 1.34% | 4.15 M | $20.82 |
| Q4 2013 | -25,670 | Reduce 0.61% | 4.21 M | $17.82 |
| Q3 2013 | -54,847 | Reduce 1.28% | 4.23 M | $14.59 |
| Q2 2013 | +4.29 M | Add 0.00% | 4.29 M | $14.23 |
Mairs and Power's Corning Incorporated Investment FAQs
Mairs and Power first purchased Corning Incorporated (GLW) in Q2 2013, acquiring 4,289,007 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mairs and Power has held Corning Incorporated (GLW) for 51 quarters since Q2 2013.
Mairs and Power's largest addition to Corning Incorporated (GLW) was in Q2 2013, adding 4,289,007 shares worth $61.03 M.
According to the latest 13F filing for Q4 2025, Mairs and Power's firm, Mairs & Power INC, owns 90,350 shares of Corning Incorporated (GLW), valued at approximately $7.91 M.
As of the Q4 2025 filing, Corning Incorporated (GLW) represents approximately 0.08% of Mairs and Power's publicly disclosed stock portfolio, making it one of their key holdings.
Mairs and Power's peak holding in Corning Incorporated (GLW) was 4,289,007 shares, as reported at the end of Q2 2013.