Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionCoastline Trust Co
Latest Disclosed Ownership6,010 shares
Latest Disclosed Value $ 817,180
Coastline Trust Co ownership in GLW / Corning Incorporated

On April 3, 2026 - Coastline Trust Co filed a 13F-HR form disclosing ownership of 6,010 shares of Corning Incorporated (MX:GLW) valued at $817,180 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 6,010 shares of Corning Incorporated. This represents a change in shares of 0.00% 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)
2026-04-03 2026-03-31 13F CORNING COM 219350105 6,010 0 0.00 817 55.32 0.0811
2026-01-05 2025-12-31 13F CORNING COM 219350105 6,010 -500 -7.68 526 -1.50 0.0495
2025-10-21 2025-09-30 13F CORNING COM 219350105 6,510 0 0.00 534 56.14 0.0573
2025-07-17 2025-06-30 13F CORNING COM 219350105 6,510 0 0.00 342 14.77 0.0392
2025-04-28 2025-03-31 13F CORNING COM 219350105 6,510 0 0.00 298 -3.56 0.0370
2025-02-13 2024-12-31 13F CORNING COM 219350105 6,510 -5,760 -46.94 309 -44.12 0.0362
2024-11-06 2024-09-30 13F CORNING COM 219350105 12,270 -90 -0.73 554 15.21 0.0651
2024-07-15 2024-06-30 13F CORNING COMMON STOCK 219350105 12,360 -270 -2.14 480 15.38 0.0562
2024-04-26 2024-03-31 13F CORNING COMMON STOCK 219350105 12,630 -1,680 -11.74 416 -4.37 0.0503
2024-01-23 2023-12-31 13F CORNING COMMON STOCK 219350105 14,310 -690 -4.60 436 -4.81 0.0579
2023-10-18 2023-09-30 13F CORNING COMMON STOCK 219350105 15,000 -10,650 -41.52 457 -49.11 0.0674
2023-08-07 2023-06-30 13F CORNING COMMON STOCK 219350105 25,650 -37,240 -59.21 899 -59.51 0.1259
2023-05-31 2023-03-31 13F/A-1 CORNING COMMON STOCK 219350105 62,890 -390 -0.62 2,219 9.75 0.3286
2023-04-12 2023-03-31 13F CORNING COMMON STOCK 219350105 63,280 0 2,021 0.3011
2023-02-09 2022-12-31 13F CORNING COMMON STOCK 219350105 63,280 -1,840 -2.83 2,021 6.93 0.3011
2022-11-03 2022-09-30 13F CORNING COMMON STOCK 219350105 65,120 -2,440 -3.61 1,890 -11.18 0.3024
2022-07-22 2022-06-30 13F CORNING COMMON STOCK 219350105 67,560 300 0.45 2,128 -14.30 0.3148
2022-05-04 2022-03-31 13F CORNING COMMON STOCK 219350105 67,260 20 0.03 2,483 -0.84 0.3016
2022-02-10 2021-12-31 13F CORNING COMMON STOCK 219350105 67,240 -90 -0.13 2,504 1.91 0.2856
2021-11-09 2021-09-30 13F CORNING COMMON STOCK 219350105 67,330 -610 -0.90 2,457 -11.59 0.3056
2021-08-10 2021-06-30 13F CORNING COMMON STOCK 219350105 67,940 -6,270 -8.45 2,779 -13.91 0.3439
2021-05-10 2021-03-31 13F CORNING COMMON STOCK 219350105 74,210 -3,730 -4.79 3,228 15.04 0.4161
2021-02-12 2020-12-31 13F CORNING COMMON STOCK 219350105 77,940 -680 -0.86 2,806 10.13 0.3739
2020-10-15 2020-09-30 13F CORNING COMMON STOCK 219350105 78,620 10,280 15.04 2,548 43.95 0.3830
2020-08-07 2020-06-30 13F CORNING COMMON STOCK 219350105 68,340 9,610 16.36 1,770 46.77 0.2794
2020-06-10 2020-03-31 13F CORNING COMMON STOCK 219350105 58,730 1,170 2.03 1,206 -28.04 0.2178
2020-01-15 2019-12-31 13F CORNING COMMON STOCK 219350105 57,560 545 0.96 1,676 3.08 0.2323
2019-10-18 2019-09-30 13F CORNING COMMON STOCK 219350105 57,015 -5,015 -8.08 1,626 -21.11 0.2393
2019-07-18 2019-06-30 13F CORNING COMMON STOCK 219350105 62,030 215 0.35 2,061 0.73 0.2996
2019-04-25 2019-03-31 13F CORNING COMMON STOCK 219350105 61,815 1,443 2.39 2,046 12.17 0.3055
2019-01-15 2018-12-31 13F CORNING COMMON STOCK 219350105 60,372 592 0.99 1,824 -13.55 0.3145
2018-10-17 2018-09-30 13F CORNING COMMON STOCK 219350105 59,780 0 0.00 2,110 28.27 0.3024
2018-07-27 2018-06-30 13F CORNING COMMON STOCK 219350105 59,780 0 0.00 1,645 -1.32 0.2480
2018-04-16 2018-03-31 13F CORNING COMMON STOCK 219350105 59,780 -270 -0.45 1,667 -13.22 0.2561
2018-01-17 2017-12-31 13F CORNING COMMON STOCK 219350105 60,050 8,540 16.58 1,921 24.66 0.2890
2017-11-17 2017-09-30 13F CORNING COMMON STOCK 219350105 51,510 720 1.42 1,541 0.98 0.2687
2017-08-10 2017-06-30 13F CORNING COMMON STOCK 219350105 50,790 -250 -0.49 1,526 10.74 0.2766
2017-04-19 2017-03-31 13F CORNING COMMON STOCK 219350105 51,040 -460 -0.89 1,378 10.24 0.2573
2017-01-17 2016-12-31 13F CORNING COMMON STOCK 219350105 51,500 -410 -0.79 1,250 1.87 0.2456
2016-10-20 2016-09-30 13F CORNING COMMON STOCK 219350105 51,910 -390 -0.75 1,227 14.57 0.2400
2016-07-18 2016-06-30 13F CORNING COMMON STOCK 219350105 52,300 -470 -0.89 1,071 -2.81 0.2163
2016-04-15 2016-03-31 13F CORNING COMMON STOCK 219350105 52,770 450 0.86 1,102 15.15 0.2351
2016-01-15 2015-12-31 13F CORNING COMMON STOCK 219350105 52,320 -1,195 -2.23 957 4.48 0.2101
2015-10-30 2015-09-30 13F CORNING COMMON STOCK 219350105 53,515 1,415 2.72 916 -10.89 0.2085
2015-07-22 2015-06-30 13F CORNING COMMON STOCK 219350105 52,100 360 0.70 1,028 -12.36 0.2150
2015-04-17 2015-03-31 13F CORNING COMMON STOCK 219350105 51,740 1,746 3.49 1,173 2.36 0.2407
2015-01-21 2014-12-31 13F CORNING COMMON STOCK 219350105 49,994 9,189 22.52 1,146 45.25 0.2393
2014-10-20 2014-09-30 13F CORNING COMMON STOCK 219350105 40,805 2,325 6.04 789 -6.63 0.2068
2014-07-23 2014-06-30 13F CORNING COMMON STOCK 219350105 38,480 0 0.00 845 5.49 0.2193
2014-05-09 2014-03-31 13F CORNING COMMON STOCK 219350105 38,480 360 0.94 801 17.97 0.2129
2014-02-14 2013-12-31 13F CORNING COMMON STOCK 219350105 38,120 0 0.00 679 22.12 0.1844
2013-11-12 2013-09-30 13F CORNING COMMON STOCK 219350105 38,120 4,070 11.95 556 14.64 0.1635
2013-08-06 2013-06-30 13F CORNING COMMON STOCK 219350105 34,050 34,050 485 0.1495
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.