Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionGlenview Trust Co
Latest Disclosed Ownership17,644 shares
Latest Disclosed Value $ 2,399,054
Glenview Trust Co reports 0.08% increase in ownership of GLW / Corning Incorporated

On May 8, 2026 - Glenview Trust Co filed a 13F-HR form disclosing ownership of 17,644 shares of Corning Incorporated (MX:GLW) valued at $2,399,054 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 17,630 shares of Corning Incorporated. This represents a change in shares of 0.08% 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)
2026-05-08 2026-03-31 13F CORNING COM 219350105 17,644 14 0.08 2,399 55.48 0.0195
2026-02-09 2025-12-31 13F CORNING COM 219350105 17,630 26 0.15 1,544 6.86 0.0238
2025-11-07 2025-09-30 13F CORNING COM 219350105 17,604 0 0.00 1,444 56.11 0.0229
2025-08-14 2025-06-30 13F CORNING COM 219350105 17,604 0 0.00 926 14.91 0.0160
2025-05-20 2025-03-31 13F/A-1 CORNING COM 219350105 17,604 -3,475 -16.49 806 -19.58 0.0157
2025-05-15 2025-03-31 13F CORNING COM 219350105 21,079 0 1,002 0.0098
2025-02-10 2024-12-31 13F CORNING COM 219350105 21,079 0 0.00 1,002 5.26 0.0188
2024-11-12 2024-09-30 13F CORNING COM 219350105 21,079 4,000 23.42 952 43.44 0.0183
2024-08-14 2024-06-30 13F CORNING COM 219350105 17,079 -1,991 -10.44 664 5.57 0.0133
2024-05-14 2024-03-31 13F CORNING COM 219350105 19,070 117 0.62 629 8.84 0.0135
2024-02-12 2023-12-31 13F CORNING COM 219350105 18,953 -192 -1.00 577 -1.03 0.0142
2023-11-13 2023-09-30 13F CORNING COM 219350105 19,145 185 0.98 583 -12.20 0.0161
2023-08-14 2023-06-30 13F CORNING COM 219350105 18,960 -733 -3.72 664 -4.32 0.0181
2023-05-09 2023-03-31 13F CORNING COM 219350105 19,693 1,850 10.37 695 21.97 0.0208
2023-02-08 2022-12-31 13F CORNING COM 219350105 17,843 -82 -0.46 570 9.42 0.0189
2022-11-04 2022-09-30 13F CORNING COM 219350105 17,925 0 0.00 520 -7.96 0.0197
2022-08-10 2022-06-30 13F CORNING COM 219350105 17,925 -868 -4.62 565 -18.47 0.0208
2022-05-11 2022-03-31 13F CORNING COM 219350105 18,793 1,103 6.24 693 5.16 0.0225
2022-02-10 2021-12-31 13F CORNING COM 219350105 17,690 7,000 65.48 659 68.97 0.0218
2021-11-12 2021-09-30 13F CORNING COM 219350105 10,690 0 0.00 390 -10.76 0.0151
2021-08-11 2021-06-30 13F CORNING COM 219350105 10,690 1,096 11.42 437 4.80 0.0169
2021-05-12 2021-03-31 13F CORNING COM 219350105 9,594 0 0.00 417 20.87 0.0180
2021-02-02 2020-12-31 13F CORNING COM 219350105 9,594 0 0.00 345 10.93 0.0160
2020-11-12 2020-09-30 13F CORNING COM 219350105 9,594 0 0.00 311 25.40 0.0161
2020-08-12 2020-06-30 13F CORNING COM 219350105 9,594 -5,900 -38.08 248 -22.01 0.0141
2020-04-28 2020-03-31 13F CORNING COM 219350105 15,494 0 0.00 318 -29.49 0.0221
2020-02-06 2019-12-31 13F CORNING COM 219350105 15,494 0 0.00 451 2.04 0.0252
2019-11-14 2019-09-30 13F CORNING COM 219350105 15,494 0 0.00 442 -14.17 0.0267
2019-08-08 2019-06-30 13F CORNING COM 219350105 15,494 0 0.00 515 0.39 0.0320
2019-05-14 2019-03-31 13F CORNING COM 219350105 15,494 0 0.00 513 9.62 0.0329
2019-02-14 2018-12-31 13F CORNING COM 219350105 15,494 0 0.00 468 -14.44 0.0346
2018-11-14 2018-09-30 13F CORNING COM 219350105 15,494 0 0.00 547 28.40 0.0345
2018-08-10 2018-06-30 13F CORNING COM 219350105 15,494 0 0.00 426 -1.16 0.0317
2018-05-15 2018-03-31 13F/A-1 CORNING COM 219350105 15,494 0 0.00 431 -13.10 0.0298
2018-05-14 2018-03-31 13F CORNING COM 219350105 15,494 431
2018-02-06 2017-12-31 13F CORNING COM 219350105 15,494 0 0.00 496 6.90 0.0342
2017-11-07 2017-09-30 13F CORNING COM 219350105 15,494 0 0.00 464 -0.22 0.0340
2017-08-11 2017-06-30 13F CORNING COM 219350105 15,494 -506 -3.16 465 7.64 0.0361
2017-05-10 2017-03-31 13F CORNING COM 219350105 16,000 0 0.00 432 11.34 0.0341
2017-02-14 2016-12-31 13F/A-1 CORNING COM 219350105 16,000 5,900 58.42 388 109.73 0.0322
2017-02-10 2016-12-31 13F CORNING COM 219350105 16,000 388
2017-04-28 2015-12-31 13F CORNING COM 219350105 10,100 -870 -7.93 185 34.06 0.0192
2017-05-03 2012-12-31 13F CORNING COM 219350105 10,970 10,970 138 0.0204
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.