Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionCharter Trust Co
Latest Disclosed Ownership1,669 shares
Latest Disclosed Value $ 226,934
Charter Trust Co ownership in GLW / Corning Incorporated

On April 17, 2026 - Charter Trust Co filed a 13F-HR form disclosing ownership of 1,669 shares of Corning Incorporated (MX:GLW) valued at $226,934 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 17, 2024 disclosing 0 shares of Corning Incorporated.

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)
2026-04-17 2026-03-31 13F CORNING COM 219350105 1,669 1,669 227 0.0133
2024-01-17 2023-12-31 13F CORNING COM 219350105 0 -57,647 -100.00 0 -100.00
2023-11-28 2023-09-30 13F CORNING COM 219350105 57,647 -1,100 -1.87 1,757 -14.67 0.1399
2023-08-09 2023-06-30 13F CORNING COM 219350105 58,747 -2,862 -4.65 2,058 -5.29 0.1578
2023-04-24 2023-03-31 13F CORNING COM 219350105 61,609 859 1.41 2,174 12.01 0.1730
2023-06-09 2022-12-31 13F/A-1 CORNING COM 219350105 60,750 875 1.46 1,940 11.62 0.1550
2023-01-19 2022-12-31 13F CORNING COM 219350105 60,750 875 2 0.0002
2022-10-24 2022-09-30 13F CORNING COM 219350105 59,875 3,954 7.07 1,738 -1.36 0.1498
2022-08-12 2022-06-30 13F CORNING COM 219350105 55,921 16,205 40.80 1,762 20.19 0.1410
2022-04-14 2022-03-31 13F CORNING COM 219350105 39,716 30,611 336.20 1,466 332.45 0.1315
2022-01-28 2021-12-31 13F CORNING COM 219350105 9,105 -196 -2.11 339 0.00 0.0288
2021-11-15 2021-09-30 13F CORNING COM 219350105 9,301 -299 -3.11 339 -13.74 0.0317
2021-08-11 2021-06-30 13F CORNING COM 219350105 9,600 0 0.00 393 -5.98 0.0365
2021-05-06 2021-03-31 13F CORNING COM 219350105 9,600 -3,965 -29.23 418 -14.34 0.0407
2021-02-09 2020-12-31 13F CORNING COM 219350105 13,565 0 0.00 488 10.91 0.0489
2020-11-02 2020-09-30 13F CORNING COM 219350105 13,565 0 0.00 440 25.36 0.0486
2020-08-04 2020-06-30 13F CORNING COM 219350105 13,565 -7,300 -34.99 351 -18.18 0.0406
2020-05-14 2020-03-31 13F CORNING COM 219350105 20,865 -1,717 -7.60 429 -34.70 0.0579
2020-02-11 2019-12-31 13F CORNING COMMON STOCK 219350105 22,582 -3,025 -11.81 657 -10.00 0.0719
2019-11-07 2019-09-30 13F CORNING COMMON STOCK 219350105 25,607 -108 -0.42 730 -14.62 0.0848
2019-08-01 2019-06-30 13F CORNING COMMON STOCK 219350105 25,715 -95 -0.37 855 0.12 0.0994
2019-05-10 2019-03-31 13F CORNING COMMON STOCK 219350105 25,810 -82 -0.32 854 9.21 0.1024
2019-02-13 2018-12-31 13F CORNING COMMON STOCK 219350105 25,892 -625 -2.36 782 -16.45 0.1040
2018-11-14 2018-09-30 13F CORNING COMMON STOCK 219350105 26,517 0 0.00 936 28.40 0.1062
2018-08-10 2018-06-30 13F CORNING COMMON STOCK 219350105 26,517 -200 -0.75 729 -2.15 0.0879
2018-04-06 2018-03-31 13F CORNING COMMON STOCK 219350105 26,717 -159 -0.59 745 -13.37 0.0913
2018-01-17 2017-12-31 13F CORNING COMMON STOCK 219350105 26,876 -510 -1.86 860 4.88 0.1001
2017-10-11 2017-09-30 13F CORNING COMMON STOCK 219350105 27,386 -1,550 -5.36 820 -5.64 0.0992
2017-07-10 2017-06-30 13F CORNING COMMON STOCK 219350105 28,936 -720 -2.43 869 8.49 0.1043
2017-04-07 2017-03-31 13F CORNING COMMON STOCK 219350105 29,656 -17,225 -36.74 801 -29.61 0.0936
2017-01-19 2016-12-31 13F CORNING COMMON STOCK 219350105 46,881 -150 -0.32 1,138 2.34 0.1256
2016-10-14 2016-09-30 13F CORNING COMMON STOCK 219350105 47,031 -1,560 -3.21 1,112 11.76 0.1259
2016-07-19 2016-06-30 13F CORNING COMMON STOCK 219350105 48,591 -2,705 -5.27 995 -7.10 0.1157
2016-04-08 2016-03-31 13F CORNING COMMON STOCK 219350105 51,296 -465 -0.90 1,071 13.21 0.1306
2016-01-11 2015-12-31 13F CORNING COMMON STOCK 219350105 51,761 -921 -1.75 946 4.88 0.1189
2015-10-16 2015-09-30 13F CORNING COMMON STOCK 219350105 52,682 5,675 12.07 902 -2.70 0.1196
2015-07-20 2015-06-30 13F CORNING COMMON STOCK 219350105 47,007 1,392 3.05 927 -10.35 0.1127
2015-04-07 2015-03-31 13F CORNING COMMON STOCK 219350105 45,615 3,686 8.79 1,034 7.60 0.1253
2015-01-14 2014-12-31 13F CORNING COMMON STOCK 219350105 41,929 150 0.36 961 18.94 0.1200
2014-10-21 2014-09-30 13F CORNING COMMON STOCK 219350105 41,779 -4,390 -9.51 808 -20.32 0.1037
2014-07-09 2014-06-30 13F CORNING COMMON STOCK 219350105 46,169 -120 -0.26 1,014 5.19 0.1270
2014-04-28 2014-03-31 13F CORNING COMMON STOCK 219350105 46,289 260 0.56 964 17.56 0.1239
2014-01-15 2013-12-31 13F CORNING COMMON STOCK 219350105 46,029 46,029 820 0.1065
2013-10-23 2013-09-30 13F CORNING COMMON STOCK 219350105 45,647 13,851 43.56 666 47.35 0.0934
2013-07-25 2013-06-30 13F CORNING COMMON STOCK 219350105 31,796 2,830 9.77 452 17.10 0.0654
2013-05-28 2013-03-31 13F CORNING COMMON STOCK 219350105 28,966 28,966 386 0.0589
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.