Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionShelton Capital Management
Latest Disclosed Ownership5,277 shares
Latest Disclosed Value $ 717,514
Shelton Capital Management reports 88.86% decrease in ownership of GLW / Corning Incorporated

On May 15, 2026 - Shelton Capital Management filed a 13F-HR form disclosing ownership of 5,277 shares of Corning Incorporated (MX:GLW) valued at $717,514 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 47,364 shares of Corning Incorporated. This represents a change in shares of -88.86% 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 5,277 -42,087 -88.86 718 -82.71 0.0157
2026-02-17 2025-12-31 13F CORNING COM 219350105 47,364 10 0.02 4,147 6.77 0.0819
2025-11-14 2025-09-30 13F CORNING COM 219350105 47,354 -69,064 -59.32 3,884 -36.56 0.0832
2025-08-13 2025-06-30 13F CORNING COM 219350105 116,418 -158,341 -57.63 6,122 -51.33 0.1408
2025-05-15 2025-03-31 13F CORNING COM 219350105 274,759 36,813 15.47 12,578 11.24 0.2996
2025-02-13 2024-12-31 13F CORNING COM 219350105 237,946 2,000 0.85 11,307 6.15 0.2814
2024-11-14 2024-09-30 13F CORNING COM 219350105 235,946 66,598 39.33 10,653 61.91 0.2735
2024-08-13 2024-06-30 13F CORNING COM 219350105 169,348 162,545 2,389.31 6,579 2,837.05 0.1786
2024-05-15 2024-03-31 13F CORNING COM 219350105 6,803 0 0.00 224 8.21 0.0064
2024-02-14 2023-12-31 13F CORNING COM 219350105 6,803 -447 -6.17 207 -5.91 0.0066
2023-11-14 2023-09-30 13F CORNING COM 219350105 7,250 0 0.00 221 -13.39 0.0081
2023-08-10 2023-06-30 13F CORNING COM 219350105 7,250 7,250 254 0.0091
2022-08-11 2022-06-30 13F CORNING COM 219350105 0 -6,310 -100.00 0 -100.00
2022-05-12 2022-03-31 13F CORNING COM 219350105 6,310 -900 -12.48 233 -13.06 0.0086
2022-02-11 2021-12-31 13F CORNING COM 219350105 7,210 -201,295 -96.54 268 -96.48 0.0095
2021-11-15 2021-09-30 13F CORNING COM 219350105 208,505 69,206 49.68 7,608 33.54 0.2972
2021-08-12 2021-06-30 13F CORNING COM 219350105 139,299 39,702 39.86 5,697 31.48 0.2150
2021-05-14 2021-03-31 13F CORNING COM 219350105 99,597 93,201 1,457.18 4,333 1,783.91 0.1508
2021-02-16 2020-12-31 13F CORNING COM 219350105 6,396 -994 -13.45 230 -4.17 0.0103
2020-11-09 2020-09-30 13F CORNING COM 219350105 7,390 7,390 240 0.0099
2020-05-13 2020-03-31 13F CORNING COM 219350105 0 -7,124 -100.00 0 -100.00
2020-02-11 2019-12-31 13F CORNING COM 219350105 7,124 -1,308 -15.51 207 -13.75 0.0114
2019-11-13 2019-09-30 13F CORNING COM 219350105 8,432 0 0.00 240 -14.29 0.0142
2019-08-14 2019-06-30 13F CORNING COM 219350105 8,432 8,153 2,922.22 280 -96.68 0.0161
2019-05-10 2019-03-31 13F CORNING COM 219350105 279 -8,153 -96.69 8,432 3,206.67 0.0333
2019-01-31 2018-12-31 13F CORNING COM 219350105 8,432 0 0.00 255 -14.43 0.0173
2018-11-14 2018-09-30 13F CORNING COM 219350105 8,432 600 7.66 298 38.60 0.0170
2018-08-10 2018-06-30 13F CORNING COM 219350105 7,832 0 0.00 215 -1.38 0.0134
2018-05-15 2018-03-31 13F CORNING COM 219350105 7,832 0 0.00 218 -13.15 0.0143
2018-02-06 2017-12-31 13F CORNING COM 219350105 7,832 -1 -0.01 251 7.26 0.0161
2017-11-28 2017-09-30 13F/A-1 CORNING COM 219350105 7,833 -1 -0.01 234 -0.43 0.0158
2017-08-14 2017-06-30 13F CORNING COM 219350105 7,834 -100 -1.26 235 9.81 0.0166
2017-11-28 2017-03-31 13F/A-1 CORNING COM 219350105 7,934 -2,207 -21.76 214 -13.01 0.0148
2017-11-28 2016-12-31 13F/A-2 CORNING COM 219350105 10,141 -31 -0.30 246 2.07 0.0187
2017-02-16 2016-12-31 13F/A-1 CORNING COM 219350105 10,141 0 246 0.0216
2017-02-13 2016-12-31 13F CORNING COM 219350105 10,141 246
2017-12-06 2016-09-30 13F/A-2 CORNING COM 219350105 10,172 132 1.31 241 16.99 0.0201
2017-12-04 2016-09-30 13F/A-1 CORNING COM 219350105 10,141 -31 246 0.0157
2016-11-14 2016-09-30 13F CORNING COM 219350105 10,172 132 241
2016-08-01 2016-06-30 13F CORNING COM 219350105 10,040 0 0.00 206 -1.90 0.0182
2016-05-13 2016-03-31 13F CORNING COM 219350105 10,040 0 0.00 210 14.13 0.0190
2016-02-01 2015-12-31 13F CORNING COM 219350105 10,040 0 0.00 184 6.98 0.0178
2015-11-02 2015-09-30 13F CORNING COM 219350105 10,040 0 0.00 172 -13.13 0.0189
2015-08-11 2015-06-30 13F CORNING COM 219350105 10,040 -1,217 -10.81 198 -22.35 0.0205
2015-05-12 2015-03-31 13F CORNING COM 219350105 11,257 200 1.81 255 0.39 0.0275
2015-02-10 2014-12-31 13F CORNING COM 219350105 11,057 -200 -1.78 254 16.51 0.0296
2014-10-15 2014-09-30 13F CORNING COM 219350105 11,257 0 0.00 218 -11.74 0.0293
2014-07-25 2014-06-30 13F CORNING COM 219350105 11,257 0 0.00 247 5.56 0.0345
2014-04-14 2014-03-31 13F CORNING COM 219350105 11,257 0 0.00 234 16.42 0.0343
2014-01-22 2013-12-31 13F CORNING COM 219350105 11,257 200 1.81 201 24.84 0.0304
2013-10-16 2013-09-30 13F CORNING COM 219350105 11,057 -800 -6.75 161 -4.73 0.0269
2013-07-10 2013-06-30 13F CORNING COM 219350105 11,857 11,857 169 0.0308
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.