Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionCourier Capital Llc
Latest Disclosed Ownership28,131 shares
Latest Disclosed Value $ 3,824,908
Courier Capital Llc reports 0.23% decrease in ownership of GLW / Corning Incorporated

On April 23, 2026 - Courier Capital Llc filed a 13F-HR/A form disclosing ownership of 28,131 shares of Corning Incorporated (MX:GLW) valued at $3,824,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 28,197 shares of Corning Incorporated. This represents a change in shares of -0.23% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-23 2026-03-31 13F/A-1 CORNING COM 219350105 28,131 -66 -0.23 3,825 54.94 0.2138
2026-04-20 2026-03-31 13F CORNING COM 219350105 28,131 -66 -0.23 3,825 54.94 0.2138
2026-01-29 2025-12-31 13F CORNING COM 219350105 28,197 -3,046 -9.75 2,469 -3.67 0.1386
2025-10-29 2025-09-30 13F CORNING COM 219350105 31,243 344 1.11 2,563 57.76 0.1468
2025-07-28 2025-06-30 13F CORNING COM 219350105 30,899 6 0.02 1,625 14.85 0.0987
2025-04-14 2025-03-31 13F CORNING COM 219350105 30,893 -10 -0.03 1,414 -3.68 0.0926
2025-01-13 2024-12-31 13F CORNING COM 219350105 30,903 -490 -1.56 1,469 3.60 0.1013
2024-10-22 2024-09-30 13F CORNING COM 219350105 31,393 0 0.00 1,417 16.24 0.0971
2024-07-23 2024-06-30 13F CORNING COM 219350105 31,393 2,580 8.95 1,220 28.45 0.0969
2024-04-16 2024-03-31 13F CORNING COM 219350105 28,813 4,891 20.45 950 30.36 0.0687
2024-01-17 2023-12-31 13F CORNING COM 219350105 23,922 -3,455 -12.62 728 -12.71 0.0553
2023-10-13 2023-09-30 13F CORNING COM 219350105 27,377 -800 -2.84 834 -15.50 0.0692
2023-07-31 2023-06-30 13F CORNING COM 219350105 28,177 7,270 34.77 987 33.92 0.0778
2023-05-18 2023-03-31 13F CORNING COM 219350105 20,907 0 0.00 738 10.49 0.0815
2023-01-24 2022-12-31 13F CORNING COM 219350105 20,907 -258 -1.22 668 8.63 0.0770
2022-10-18 2022-09-30 13F CORNING COM 219350105 21,165 -74 -0.35 614 -8.22 0.0761
2022-07-20 2022-06-30 13F CORNING COM 219350105 21,239 -225 -1.05 669 -15.53 0.0784
2022-05-02 2022-03-31 13F CORNING COM 219350105 21,464 0 0.00 792 -0.88 0.0792
2022-01-18 2021-12-31 13F CORNING COM 219350105 21,464 0 0.00 799 2.04 0.0743
2021-10-14 2021-09-30 13F CORNING COM 219350105 21,464 0 0.00 783 -10.82 0.0745
2021-07-12 2021-06-30 13F CORNING COM 219350105 21,464 250 1.18 878 -4.88 0.0835
2021-04-12 2021-03-31 13F CORNING COM 219350105 21,214 0 0.00 923 20.81 0.0932
2021-02-10 2020-12-31 13F CORNING COM 219350105 21,214 498 2.40 764 6.26 0.0829
2020-11-09 2020-09-30 13F CORNING COM 219350105 20,716 0 0.00 719 33.40 0.0861
2020-07-06 2020-06-30 13F CORNING COM 219350105 20,716 -665 -3.11 539 29.57 0.0694
2020-04-22 2020-03-31 13F CORNING COM 219350105 21,381 -170 -0.79 416 -36.10 0.0617
2020-01-10 2019-12-31 13F CORNING COM 219350105 21,551 255 1.20 651 10.71 0.0764
2019-10-04 2019-09-30 13F CORNING COM 219350105 21,296 -288 -1.33 588 -17.99 0.0765
2019-07-16 2019-06-30 13F CORNING COM 219350105 21,584 -963 -4.27 717 -3.89 0.0917
2019-04-25 2019-03-31 13F CORNING COM 219350105 22,547 -273 -1.20 746 8.27 0.0970
2019-02-08 2018-12-31 13F CORNING COM 219350105 22,820 -300 -1.30 689 -15.56 0.1009
2018-10-12 2018-09-30 13F CORNING COM 219350105 23,120 -2,076 -8.24 816 17.75 0.0998
2018-07-19 2018-06-30 13F CORNING COM 219350105 25,196 276 1.11 693 -0.29 0.0893
2018-04-27 2018-03-31 13F CORNING COM 219350105 24,920 -4,713 -15.90 695 -26.69 0.0916
2018-01-25 2017-12-31 13F CORNING COM 219350105 29,633 -5,171 -14.86 948 -8.93 0.1217
2017-11-03 2017-09-30 13F CORNING COM 219350105 34,804 0 0.00 1,041 -0.48 0.1456
2017-08-10 2017-06-30 13F CORNING COM 219350105 34,804 9,460 37.33 1,046 52.92 0.1791
2017-04-19 2017-03-31 13F CORNING COM 219350105 25,344 18 0.07 684 11.22 0.1203
2017-01-31 2016-12-31 13F CORNING COM 219350105 25,326 -270 -1.05 615 1.65 0.1173
2016-11-15 2016-09-30 13F CORNING COM 219350105 25,596 -2,531 -9.00 605 5.03 0.1198
2016-08-01 2016-06-30 13F CORNING COM 219350105 28,127 247 0.89 576 -1.03 0.1150
2016-05-16 2016-03-31 13F CORNING COM 219350105 27,880 3,126 12.63 582 28.48 0.1212
2016-02-10 2015-12-31 13F CORNING COM 219350105 24,754 0 0.00 453 6.84 0.0974
2015-10-21 2015-09-30 13F CORNING COM 219350105 24,754 40 0.16 424 -13.11 0.0934
2015-08-03 2015-06-30 13F CORNING COM 219350105 24,714 -12,880 -34.26 488 -42.79 0.0983
2015-04-28 2015-03-31 13F CORNING COM 219350105 37,594 0 0.00 853 -1.04 0.1685
2015-01-22 2014-12-31 13F CORNING COM 219350105 37,594 0 0.00 862 18.57 0.1734
2014-11-04 2014-09-30 13F CORNING COM 219350105 37,594 -294 -0.78 727 -12.62 0.1471
2014-08-06 2014-06-30 13F CORNING COM 219350105 37,888 -791 -2.05 832 3.35 0.1645
2014-05-02 2014-03-31 13F CORNING COM 219350105 38,679 37 0.10 805 16.84 0.1659
2014-02-14 2013-12-31 13F CORNING COM 219350105 38,642 540 1.42 689 23.92 0.1468
2013-11-14 2013-09-30 13F CORNING COM 219350105 38,102 -540 -1.40 556 1.09 0.1276
2013-08-01 2013-06-30 13F CORNING COM 219350105 38,642 38,642 550 0.1370
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.