Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionTrust Co
Latest Disclosed Ownership411 shares
Latest Disclosed Value $ 55,884
Trust Co reports 36.54% increase in ownership of GLW / Corning Incorporated

On April 13, 2026 - Trust Co filed a 13F-HR form disclosing ownership of 411 shares of Corning Incorporated (MX:GLW) valued at $55,884 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 301 shares of Corning Incorporated. This represents a change in shares of 36.54% 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)
2026-04-13 2026-03-31 13F CORNING INC COM Stock 219350105 411 110 36.54 56 111.54 0.0052
2026-01-15 2025-12-31 13F CORNING INC COM Stock 219350105 301 1 0.33 26 8.33 0.0025
2025-10-06 2025-09-30 13F Corning COM 219350105 300 -966 -76.30 25 -63.64 0.0025
2025-07-07 2025-06-30 13F Corning COM 219350105 1,266 0 0.00 67 15.79 0.0075
2025-04-08 2025-03-31 13F Corning COM 219350105 1,266 300 31.06 58 26.67 0.0069
2025-01-14 2024-12-31 13F Corning COM 219350105 966 0 0.00 46 4.65 0.0053
2024-10-03 2024-09-30 13F Corning COM 219350105 966 0 0.00 44 16.22 0.0052
2024-07-15 2024-06-30 13F Corning COM 219350105 966 0 0.00 38 19.35 0.0048
2024-04-11 2024-03-31 13F Corning COM 219350105 966 0 0.00 32 6.90 0.0042
2024-01-10 2023-12-31 13F Corning COM 219350105 966 0 0.00 29 0.00 0.0038
2023-12-04 2023-09-30 13F Corning COM 219350105 966 -637 -39.74 29 -48.21 0.0047
2023-07-10 2023-06-30 13F Corning COM 219350105 1,603 -642 -28.60 56 -29.11 0.0084
2023-04-07 2023-03-31 13F Corning COM 219350105 2,245 -157 -6.54 79 2.60 0.0120
2023-01-09 2022-12-31 13F Corning COM 219350105 2,402 157 6.99 0 -100.00 0.0125
2022-10-11 2022-09-30 13F Corning COM 219350105 2,245 0 0.00 65 -8.45 0.0142
2022-07-06 2022-06-30 13F Corning COM 219350105 2,245 0 0.00 71 -14.46 0.0153
2022-04-08 2022-03-31 13F Corning COM 219350105 2,245 0 0.00 83 -1.19 0.0162
2022-01-14 2021-12-31 13F Corning COM 219350105 2,245 0 0.00 84 2.44 0.0196
2021-10-20 2021-09-30 13F Corning COM 219350105 2,245 0 0.00 82 -10.87 0.0210
2021-07-14 2021-06-30 13F Corning COM 219350105 2,245 0 0.00 92 -6.12 0.0645
2021-04-08 2021-03-31 13F Corning COM 219350105 2,245 0 0.00 98 20.99 0.0706
2021-01-12 2020-12-31 13F Corning COM 219350105 2,245 -130 -5.47 81 5.19 0.0640
2020-10-06 2020-09-30 13F Corning COM 219350105 2,375 130 5.79 77 32.76 0.0648
2020-07-17 2020-06-30 13F Corning COM 219350105 2,245 0 0.00 58 26.09 0.0551
2020-04-07 2020-03-31 13F Corning COM 219350105 2,245 0 0.00 46 -29.23 0.0507
2020-01-07 2019-12-31 13F Corning COM 219350105 2,245 0 0.00 65 1.56 0.0571
2019-10-09 2019-09-30 13F Corning COM 219350105 2,245 0 0.00 64 -14.67 0.0604
2019-07-08 2019-06-30 13F Corning COM 219350105 2,245 0 0.00 75 1.35 0.0690
2019-04-08 2019-03-31 13F Corning COM 219350105 2,245 0 0.00 74 8.82 0.0431
2019-01-22 2018-12-31 13F Corning COM 219350105 2,245 0 0.00 68 -13.92 0.0378
2018-10-09 2018-09-30 13F Corning COM 219350105 2,245 0 0.00 79 27.42 0.0357
2018-07-10 2018-06-30 13F Corning COM 219350105 2,245 0 0.00 62 -1.59 0.0284
2018-04-09 2018-03-31 13F Corning COM 219350105 2,245 0 0.00 63 -12.50 0.0233
2018-03-09 2017-12-31 13F/A-1 Corning COM 219350105 2,245 966 75.53 72 89.47 0.0297
2018-01-11 2017-12-31 13F Corning COM 219350105 2,245 966 72
2017-10-12 2017-09-30 13F Corning COM 219350105 1,279 0 0.00 38 0.00 0.0209
2017-07-07 2017-06-30 13F Corning COM 219350105 1,279 0 0.00 38 8.57 0.0176
2017-04-06 2017-03-31 13F Corning COM 219350105 1,279 0 0.00 35 12.90 0.0159
2017-01-12 2016-12-31 13F Corning COM 219350105 1,279 0 0.00 31 3.33 0.0158
2016-10-19 2016-09-30 13F Corning CORNING INC COM 219350105 1,279 0 0.00 30 15.38 0.0132
2016-07-08 2016-06-30 13F Corning COM 219350105 1,279 0 0.00 26 -3.70 0.0099
2016-04-08 2016-03-31 13F Corning COM 219350105 1,279 0 0.00 27 17.39 0.0124
2016-01-26 2015-12-31 13F Corning COM 219350105 1,279 -3,014 -70.21 23 -68.49 0.0108
2015-10-13 2015-09-30 13F Corning COM 219350105 4,293 657 18.07 73 1.39 0.0414
2015-07-10 2015-06-30 13F Corning COM 219350105 3,636 0 0.00 72 -12.20 0.0450
2015-05-07 2015-03-31 13F Corning COM 219350105 3,636 3,636 82 0.0518
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.