Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionTexas Yale Capital Corp.
Latest Disclosed Ownership8,100 shares
Latest Disclosed Value $ 1,101,357
Texas Yale Capital Corp. reports 1.22% decrease in ownership of GLW / Corning Incorporated

On May 4, 2026 - Texas Yale Capital Corp. filed a 13F-HR form disclosing ownership of 8,100 shares of Corning Incorporated (MX:GLW) valued at $1,101,357 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 8,200 shares of Corning Incorporated. This represents a change in shares of -1.22% 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)
2026-05-04 2026-03-31 13F CORNING COM 219350105 8,100 -100 -1.22 1,101 53.56 0.0313
2026-02-10 2025-12-31 13F CORNING COM 219350105 8,200 0 0.00 718 6.70 0.0218
2025-11-07 2025-09-30 13F CORNING COM 219350105 8,200 0 0.00 673 55.92 0.0212
2025-08-06 2025-06-30 13F CORNING COM 219350105 8,200 0 0.00 431 14.93 0.0141
2025-05-07 2025-03-31 13F CORNING COM 219350105 8,200 -500 -5.75 375 -9.20 0.0154
2025-02-13 2024-12-31 13F CORNING COM 219350105 8,700 0 0.00 413 5.36 0.0166
2024-11-12 2024-09-30 13F CORNING COM 219350105 8,700 0 0.00 393 16.32 0.0171
2024-08-13 2024-06-30 13F CORNING COM 219350105 8,700 0 0.00 338 17.83 0.0161
2024-05-08 2024-03-31 13F CORNING COM 219350105 8,700 0 0.00 287 8.33 0.0127
2024-02-13 2023-12-31 13F CORNING COM 219350105 8,700 0 0.00 265 -0.38 0.0126
2023-11-09 2023-09-30 13F CORNING COM 219350105 8,700 0 0.00 265 -12.83 0.0119
2023-08-03 2023-06-30 13F CORNING COM 219350105 8,700 0 0.00 305 -0.65 0.0143
2023-05-10 2023-03-31 13F CORNING COM 219350105 8,700 0 0.00 307 10.47 0.0156
2023-02-13 2022-12-31 13F CORNING COM 219350105 8,700 0 0.00 278 9.92 0.0158
2022-11-08 2022-09-30 13F CORNING COM 219350105 8,700 0 0.00 252 -8.03 0.0161
2022-08-11 2022-06-30 13F CORNING COM 219350105 8,700 0 0.00 274 -14.64 0.0177
2022-05-10 2022-03-31 13F CORNING COM 219350105 8,700 -2,000 -18.69 321 -19.35 0.0175
2022-02-10 2021-12-31 13F CORNING COM 219350105 10,700 0 0.00 398 2.05 0.0202
2021-11-08 2021-09-30 13F CORNING COM 219350105 10,700 0 0.00 390 -10.96 0.0221
2021-08-05 2021-06-30 13F CORNING COM 219350105 10,700 0 0.00 438 -6.01 0.0250
2021-05-12 2021-03-31 13F CORNING COM 219350105 10,700 -11,400 -51.58 466 -41.46 0.0293
2021-02-10 2020-12-31 13F CORNING COM 219350105 22,100 2,000 9.95 796 22.27 0.0535
2020-11-10 2020-09-30 13F CORNING COM 219350105 20,100 0 0.00 651 24.95 0.0499
2020-07-31 2020-06-30 13F CORNING COM 219350105 20,100 -7,375 -26.84 521 -7.62 0.0424
2020-05-13 2020-03-31 13F CORNING COM 219350105 27,475 0 0.00 564 -29.50 0.0555
2020-02-11 2019-12-31 13F CORNING COM 219350105 27,475 -7,500 -21.44 800 -19.76 0.0548
2019-10-31 2019-09-30 13F CORNING COM 219350105 34,975 0 0.00 997 -14.20 0.0715
2019-07-24 2019-06-30 13F CORNING COM 219350105 34,975 -34,975 -50.00 1,162 -49.83 0.0867
2019-05-10 2019-03-31 13F CORNING COM 219350105 69,950 49,850 248.01 2,316 281.55 0.0926
2019-02-11 2018-12-31 13F CORNING COM 219350105 20,100 0 0.00 607 -14.51 0.0548
2018-11-13 2018-09-30 13F CORNING COM 219350105 20,100 0 0.00 710 28.39 0.0573
2018-08-07 2018-06-30 13F CORNING COM 219350105 20,100 0 0.00 553 -1.25 0.0475
2018-05-03 2018-03-31 13F CORNING COM 219350105 20,100 0 0.00 560 -12.91 0.0482
2018-02-07 2017-12-31 13F CORNING COM 219350105 20,100 0 0.00 643 6.99 0.0554
2017-11-08 2017-09-30 13F CORNING COM 219350105 20,100 0 0.00 601 -0.50 0.0519
2017-08-03 2017-06-30 13F CORNING COM 219350105 20,100 0 0.00 604 11.23 0.0531
2017-05-03 2017-03-31 13F CORNING COM 219350105 20,100 0 0.00 543 11.27 0.0479
2017-02-13 2016-12-31 13F CORNING COM 219350105 20,100 0 0.00 488 2.74 0.0461
2016-11-14 2016-09-30 13F CORNING COM 219350105 20,100 0 0.00 475 15.29 0.0457
2016-08-12 2016-06-30 13F CORNING COM 219350105 20,100 0 0.00 412 -1.90 0.0409
2016-05-13 2016-03-31 13F CORNING COM 219350105 20,100 0 0.00 420 14.44 0.0432
2016-05-10 2015-12-31 13F/A-1 CORNING COM 219350105 20,100 0 0.00 367 6.69 0.0330
2016-02-05 2015-12-31 13F CORNING COM 219350105 20,100 367
2016-05-10 2015-09-30 13F/A-1 CORNING COM 219350105 20,100 0 0.00 344 -13.35 0.0315
2015-11-10 2015-09-30 13F CORNING COM 219350105 20,100 344
2016-05-10 2015-06-30 13F/A-1 CORNING COM 219350105 20,100 0 0.00 397 -12.94 0.0329
2015-07-30 2015-06-30 13F CORNING COM 219350105 20,100 397
2016-05-10 2015-03-31 13F/A-1 CORNING COM 219350105 20,100 0 0.00 456 -1.08 0.0363
2015-04-16 2015-03-31 13F CORNING COM 219350105 20,100 456
2015-02-12 2014-12-31 13F CORNING COM 219350105 20,100 -2,636 -11.59 461 4.77 0.0399
2014-12-01 2014-09-30 13F/A-1 CORNING COM 219350105 22,736 2,636 13.11 440 -0.23 0.0414
2014-11-13 2014-09-30 13F CORNING COM 219350105 22,736 440
2014-08-12 2014-06-30 13F CORNING COM 219350105 20,100 0 0.00 441 5.50 0.0553
2014-08-04 2014-03-31 13F/A-1 CORNING COM 219350105 20,100 0 0.00 418 16.76 0.0581
2014-05-15 2014-03-31 13F CORNING COM 219350105 20,100 418
2014-02-11 2013-12-31 13F CORNING COM 219350105 20,100 0 0.00 358 22.18 0.0549
2013-11-05 2013-09-30 13F CORNING COM 219350105 20,100 0 0.00 293 2.45 0.0494
2013-08-07 2013-06-30 13F CORNING COM 219350105 20,100 20,100 286 0.0499
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.