Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionCypress Capital Group
Latest Disclosed Ownership14,054 shares
Latest Disclosed Value $ 1,910,922
Cypress Capital Group reports 9.79% decrease in ownership of GLW / Corning Incorporated

On May 15, 2026 - Cypress Capital Group filed a 13F-HR form disclosing ownership of 14,054 shares of Corning Incorporated (MX:GLW) valued at $1,910,922 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 15,579 shares of Corning Incorporated. This represents a change in shares of -9.79% 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)
2026-05-15 2026-03-31 13F CORNING COM 219350105 14,054 -1,525 -9.79 1,911 40.03 0.1593
2026-02-11 2025-12-31 13F CORNING COM 219350105 15,579 -2,095 -11.85 1,364 -5.87 0.1528
2025-11-03 2025-09-30 13F CORNING COM 219350105 17,674 -600 -3.28 1,450 50.78 0.1733
2025-07-25 2025-06-30 13F CORNING COM 219350105 18,274 -705 -3.71 961 10.71 0.1196
2025-05-12 2025-03-31 13F CORNING COM 219350105 18,979 -180 -0.94 869 -4.62 0.1138
2025-02-06 2024-12-31 13F CORNING COM 219350105 19,159 -100 -0.52 910 4.72 0.1117
2024-11-08 2024-09-30 13F CORNING COM 219350105 19,259 -40 -0.21 870 16.02 0.0977
2024-07-25 2024-06-30 13F CORNING COM 219350105 19,299 100 0.52 750 18.51 0.0899
2024-05-08 2024-03-31 13F CORNING COM 219350105 19,199 -265 -1.36 633 6.76 0.0758
2024-01-24 2023-12-31 13F CORNING COM 219350105 19,464 20 0.10 593 0.00 0.0771
2023-11-02 2023-09-30 13F CORNING COM 219350105 19,444 -846 -4.17 592 -16.62 0.0856
2023-07-26 2023-06-30 13F CORNING COM 219350105 20,290 -934 -4.40 711 -5.08 0.1028
2023-05-04 2023-03-31 13F CORNING COM 219350105 21,224 -15 -0.07 749 10.32 0.1149
2023-02-14 2022-12-31 13F CORNING COM 219350105 21,239 -216 -1.01 678 8.83 0.1024
2022-11-04 2022-09-30 13F CORNING COM 219350105 21,455 135 0.63 623 -7.29 0.1038
2022-07-26 2022-06-30 13F CORNING COM 219350105 21,320 765 3.72 672 -11.46 0.1024
2022-05-16 2022-03-31 13F CORNING COM 219350105 20,555 10,060 95.86 759 94.12 0.0935
2022-02-15 2021-12-31 13F CORNING COM 219350105 10,495 -1,385 -11.66 391 -9.91 0.0490
2021-10-12 2021-09-30 13F CORNING COMMON STOCK 219350105 11,880 5,080 74.71 434 56.12 0.0590
2021-07-13 2021-06-30 13F CORNING COMMON STOCK 219350105 6,800 0 0.00 278 -6.08 0.0377
2021-04-14 2021-03-31 13F CORNING COMMON STOCK 219350105 6,800 0 0.00 296 20.82 0.0420
2021-01-12 2020-12-31 13F CORNING COMMON STOCK 219350105 6,800 300 4.62 245 16.11 0.0369
2020-10-08 2020-09-30 13F CORNING COMMON STOCK 219350105 6,500 6,500 211 0.0351
2020-04-08 2020-03-31 13F CORNING COMMON STOCK 219350105 0 -7,000 -100.00 0 -100.00
2020-01-10 2019-12-31 13F CORNING COMMON STOCK 219350105 7,000 7,000 204 0.0363
2019-10-10 2019-09-30 13F CORNING COMMON STOCK 219350105 0 -7,000 -100.00 0 -100.00
2019-08-15 2019-06-30 13F CORNING COMMON STOCK 219350105 7,000 0 0.00 233 0.43 0.0460
2019-05-14 2019-03-31 13F CORNING COMMON STOCK 219350105 7,000 0 0.00 232 9.95 0.0475
2019-02-19 2018-12-31 13F CORNING COMMON STOCK 219350105 7,000 0 0.00 211 -14.57 0.0484
2018-11-15 2018-09-30 13F CORNING COMMON STOCK 219350105 7,000 -13,600 -66.02 247 -56.44 0.0468
2018-08-15 2018-06-30 13F CORNING COMMON STOCK 219350105 20,600 0 0.00 567 -1.22 0.1170
2018-05-21 2018-03-31 13F CORNING COMMON STOCK 219350105 20,600 -1,000 -4.63 574 -16.93 0.1204
2018-02-14 2017-12-31 13F CORNING COMMON STOCK 219350105 21,600 0 0.00 691 6.97 0.1438
2017-11-16 2017-09-30 13F CORNING COMMON STOCK 219350105 21,600 -1,000 -4.42 646 -4.86 0.1376
2017-08-15 2017-06-30 13F CORNING COMMON STOCK 219350105 22,600 -500 -2.16 679 8.81 0.1503
2017-05-15 2017-03-31 13F CORNING COMMON STOCK 219350105 23,100 -500 -2.12 624 8.90 0.1458
2017-02-15 2016-12-31 13F CORNING COMMON STOCK 219350105 23,600 0 0.00 573 2.69 0.1360
2016-11-14 2016-09-30 13F CORNING COMMON STOCK 219350105 23,600 -1,000 -4.07 558 10.71 0.1331
2016-08-17 2016-06-30 13F CORNING COMMON STOCK 219350105 24,600 -1,070 -4.17 504 -5.97 0.1179
2016-05-17 2016-03-31 13F CORNING COMMON STOCK 219350105 25,670 -900 -3.39 536 10.29 0.1313
2016-02-16 2015-12-31 13F CORNING COMMON STOCK 219350105 26,570 -17,906 -40.26 486 -36.22 0.1172
2015-11-17 2015-09-30 13F CORNING COMMON STOCK 219350105 44,476 -100 -0.22 762 -13.31 0.1879
2015-08-18 2015-06-30 13F CORNING COMMON STOCK 219350105 44,576 -1,357 -2.95 879 -15.56 0.2024
2015-05-18 2015-03-31 13F CORNING COMMON STOCK 219350105 45,933 3,350 7.87 1,041 6.55 0.2374
2015-02-19 2014-12-31 13F CORNING COMMON STOCK 219350105 42,583 421 1.00 977 19.73 0.2264
2014-11-18 2014-09-30 13F CORNING COMMON STOCK 219350105 42,162 -772 -1.80 816 -13.47 0.1939
2014-08-18 2014-06-30 13F CORNING COMMON STOCK 219350105 42,934 13,834 47.54 943 55.61 0.2210
2014-05-19 2014-03-31 13F CORNING COMMON STOCK 219350105 29,100 -1,500 -4.90 606 11.19 0.1487
2014-02-18 2013-12-31 13F CORNING COMMON STOCK 219350105 30,600 -2,000 -6.13 545 14.50 0.1339
2013-11-06 2013-09-30 13F CORNING COMMON STOCK 219350105 32,600 -1,000 -2.98 476 -0.42 0.1176
2013-08-15 2013-06-30 13F CORNING COMMON STOCK 219350105 33,600 33,600 478 0.0999
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.