Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionArgyle Capital Management Inc.
Latest Disclosed Ownership12,319 shares
Latest Disclosed Value $ 1,675,014
Argyle Capital Management Inc. reports 4.27% decrease in ownership of GLW / Corning Incorporated

On April 28, 2026 - Argyle Capital Management Inc. filed a 13F-HR form disclosing ownership of 12,319 shares of Corning Incorporated (MX:GLW) valued at $1,675,014 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 12,869 shares of Corning Incorporated. This represents a change in shares of -4.27% 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)
2026-04-28 2026-03-31 13F Corning COM 219350105 12,319 -550 -4.27 1,675 48.76 0.5443
2026-01-29 2025-12-31 13F Corning COM 219350105 12,869 0 0.00 1,127 6.73 0.3762
2025-10-27 2025-09-30 13F Corning COM 219350105 12,869 -400 -3.01 1,056 51.36 0.3650
2025-07-24 2025-06-30 13F Corning COM 219350105 13,269 0 0.00 698 14.83 0.2530
2025-04-29 2025-03-31 13F Corning COM 219350105 13,269 -100 -0.75 607 -4.41 0.2256
2025-02-05 2024-12-31 13F Corning COM 219350105 13,369 0 0.00 635 5.31 0.2503
2024-10-25 2024-09-30 13F Corning COM 219350105 13,369 119 0.90 604 17.32 0.2403
2024-07-29 2024-06-30 13F Corning COM 219350105 13,250 -8,400 -38.80 515 -27.91 0.2118
2024-04-29 2024-03-31 13F Corning COM 219350105 21,650 -1,400 -6.07 714 1.71 0.2761
2024-02-05 2023-12-31 13F Corning COM 219350105 23,050 -17,400 -43.02 702 -43.10 0.2909
2023-10-26 2023-09-30 13F Corning COM 219350105 40,450 0 0.00 1,233 -13.06 0.4515
2023-07-27 2023-06-30 13F Corning COM 219350105 40,450 0 0.00 1,417 -0.70 0.5109
2023-04-27 2023-03-31 13F Corning COM 219350105 40,450 0 0.00 1,427 10.53 0.5016
2023-02-06 2022-12-31 13F Corning COM 219350105 40,450 0 0.00 1,292 9.97 0.4442
2022-10-21 2022-09-30 13F Corning COM 219350105 40,450 100 0.25 1,174 -7.63 0.4573
2022-07-20 2022-06-30 13F Corning COM 219350105 40,350 0 0.00 1,271 -14.64 0.4558
2022-04-27 2022-03-31 13F Corning COM 219350105 40,350 0 0.00 1,489 -0.87 0.4845
2022-01-25 2021-12-31 13F Corning COM 219350105 40,350 0 0.00 1,502 2.04 0.4687
2021-10-25 2021-09-30 13F Corning COM 219350105 40,350 0 0.00 1,472 -10.79 0.4875
2021-07-27 2021-06-30 13F Corning COM 219350105 40,350 0 0.00 1,650 -6.04 0.5332
2021-04-27 2021-03-31 13F Corning COM 219350105 40,350 0 0.00 1,756 20.85 0.5917
2021-01-28 2020-12-31 13F Corning COM 219350105 40,350 -650 -1.59 1,453 9.33 0.5407
2020-10-27 2020-09-30 13F Corning COM 219350105 41,000 0 0.00 1,329 25.14 0.5443
2020-07-22 2020-06-30 13F Corning COM 219350105 41,000 0 0.00 1,062 26.13 0.4455
2020-04-27 2020-03-31 13F Corning COM 219350105 41,000 0 0.00 842 -29.48 0.3978
2020-01-24 2019-12-31 13F Corning COM 219350105 41,000 0 0.00 1,194 2.14 0.4239
2019-10-25 2019-09-30 13F Corning COM 219350105 41,000 0 0.00 1,169 -14.17 0.4418
2019-07-25 2019-06-30 13F Corning COM 219350105 41,000 0 0.00 1,362 0.37 0.5168
2019-04-24 2019-03-31 13F Corning COM 219350105 41,000 0 0.00 1,357 9.52 0.5216
2019-01-28 2018-12-31 13F Corning COM 219350105 41,000 0 0.00 1,239 -14.37 0.5247
2018-10-26 2018-09-30 13F Corning COM 219350105 41,000 0 0.00 1,447 28.28 0.5416
2018-08-14 2018-06-30 13F Corning COM 219350105 41,000 -2,300 -5.31 1,128 -6.55 0.4473
2018-04-25 2018-03-31 13F Corning COM 219350105 43,300 0 0.00 1,207 -12.85 0.4785
2018-01-25 2017-12-31 13F Corning COM 219350105 43,300 -350 -0.80 1,385 6.05 0.5188
2017-10-26 2017-09-30 13F Corning COM 219350105 43,650 -1,600 -3.54 1,306 -3.97 0.5125
2017-07-26 2017-06-30 13F Corning COM 219350105 45,250 0 0.00 1,360 11.29 0.5522
2017-04-26 2017-03-31 13F Corning COM 219350105 45,250 0 0.00 1,222 11.29 0.4988
2017-01-27 2016-12-31 13F Corning COM 219350105 45,250 -300 -0.66 1,098 1.95 0.4668
2016-10-24 2016-09-30 13F Corning COM 219350105 45,550 -1,500 -3.19 1,077 11.72 0.4669
2016-07-26 2016-06-30 13F Corning COM 219350105 47,050 0 0.00 964 -1.93 0.4093
2016-04-26 2016-03-31 13F Corning COM 219350105 47,050 0 0.00 983 14.30 0.4469
2016-01-29 2015-12-31 13F Corning COM 219350105 47,050 -150 -0.32 860 6.44 0.3961
2015-10-27 2015-09-30 13F Corning COM 219350105 47,200 0 0.00 808 -13.21 0.3948
2015-07-29 2015-06-30 13F Corning COM 219350105 47,200 -2,300 -4.65 931 -17.10 0.4259
2015-04-29 2015-03-31 13F Corning COM 219350105 49,500 49,500 0.00 1,123 0.5023
2015-01-26 2014-12-31 13F Corning COM 219350105 0 -49,650 -100.00 0 -100.00
2014-10-22 2014-09-30 13F Corning COM 219350105 49,650 0 0.00 960 -11.93 0.4422
2014-07-25 2014-06-30 13F Corning COM 219350105 49,650 0 0.00 1,090 5.42 0.5082
2014-04-24 2014-03-31 13F Corning COM 219350105 49,650 0 0.00 1,034 16.84 0.5077
2014-01-31 2013-12-31 13F Corning COM 219350105 49,650 0 0.00 885 22.24 0.4456
2013-10-31 2013-09-30 13F Corning COM 219350105 49,650 -1,200 -2.36 724 0.00 0.3974
2013-07-31 2013-06-30 13F Corning COM 219350105 50,850 50,850 724 0.4150
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.