Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionProShare Advisors LLC
Latest Disclosed Ownership144,448 shares
Latest Disclosed Value $ 19,640,595
ProShare Advisors LLC reports 18.83% decrease in ownership of GLW / Corning Incorporated

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 144,448 shares of Corning Incorporated (MX:GLW) valued at $19,640,595 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 177,960 shares of Corning Incorporated. This represents a change in shares of -18.83% 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)
2026-04-24 2026-03-31 13F CORNING COM 219350105 144,448 -33,512 -18.83 19,641 26.04 0.0291
2026-02-06 2025-12-31 13F CORNING COM 219350105 177,960 9,981 5.94 15,582 13.09 0.0275
2025-11-06 2025-09-30 13F CORNING COM 219350105 167,979 -196 -0.12 13,779 55.80 0.0288
2025-08-07 2025-06-30 13F CORNING COM 219350105 168,175 16,578 10.94 8,844 27.44 0.0176
2025-05-08 2025-03-31 13F CORNING COM 219350105 151,597 -161,778 -51.62 6,940 -53.39 0.0157
2025-02-14 2024-12-31 13F CORNING COM 219350105 313,375 -1,973 -0.63 14,892 4.59 0.0340
2024-11-14 2024-09-30 13F CORNING COM 219350105 315,348 -53,568 -14.52 14,238 -0.66 0.0349
2024-08-13 2024-06-30 13F CORNING COM 219350105 368,916 -15,526 -4.04 14,332 13.11 0.0383
2024-05-08 2024-03-31 13F CORNING COM 219350105 384,442 11,298 3.03 12,671 11.52 0.0337
2024-02-14 2023-12-31 13F CORNING COM 219350105 373,144 49,821 15.41 11,362 15.34 0.0347
2023-11-13 2023-09-30 13F CORNING COM 219350105 323,323 38,426 13.49 9,852 -1.31 0.0307
2023-08-10 2023-06-30 13F CORNING COM 219350105 284,897 49,240 20.89 9,983 20.08 0.0290
2023-05-26 2023-03-31 13F/A-1 CORNING COM 219350105 235,657 17,164 7.86 8,314 19.13 0.0254
2023-05-12 2023-03-31 13F CORNING COM 219350105 235,657 17,164 8,314 0.0264
2023-02-02 2022-12-31 13F CORNING COM 219350105 218,493 445 0.20 6,979 10.29 0.0245
2022-11-07 2022-09-30 13F CORNING COM 219350105 218,048 -13,759 -5.94 6,327 -13.38 0.0243
2022-08-01 2022-06-30 13F CORNING COM 219350105 231,807 -41,695 -15.24 7,304 -27.63 0.0242
2022-05-10 2022-03-31 13F CORNING COM 219350105 273,502 31,170 12.86 10,093 11.86 0.0217
2022-02-08 2021-12-31 13F CORNING COM 219350105 242,332 47,158 24.16 9,023 26.69 0.0177
2021-11-12 2021-09-30 13F CORNING COM 219350105 195,174 25,263 14.87 7,122 2.49 0.0200
2021-08-13 2021-06-30 13F CORNING COM 219350105 169,911 8,177 5.06 6,949 -1.25 0.0203
2021-05-14 2021-03-31 13F CORNING COM 219350105 161,734 5,686 3.64 7,037 25.26 0.0221
2021-02-09 2020-12-31 13F CORNING COM 219350105 156,048 3,424 2.24 5,618 13.56 0.0209
2020-11-13 2020-09-30 13F CORNING COM 219350105 152,624 9,638 6.74 4,947 33.59 0.0229
2020-08-03 2020-06-30 13F CORNING COM 219350105 142,986 49,804 53.45 3,703 93.47 0.0198
2020-05-15 2020-03-31 13F CORNING COM 219350105 93,182 -91,640 -49.58 1,914 -64.42 0.0138
2020-02-12 2019-12-31 13F CORNING COM 219350105 184,822 39,860 27.50 5,380 30.14 0.0249
2019-11-12 2019-09-30 13F CORNING COM 219350105 144,962 2,917 2.05 4,134 -12.42 0.0231
2019-08-13 2019-06-30 13F CORNING COM 219350105 142,045 46,978 49.42 4,720 49.98 0.0282
2019-05-15 2019-03-31 13F CORNING COM 219350105 95,067 -4,423 -4.45 3,147 4.69 0.0188
2019-02-14 2018-12-31 13F CORNING COM 219350105 99,490 10,217 11.44 3,006 -4.60 0.0210
2018-11-14 2018-09-30 13F CORNING COM 219350105 89,273 -39,077 -30.45 3,151 -10.76 0.0214
2018-08-13 2018-06-30 13F CORNING COM 219350105 128,350 -74,837 -36.83 3,531 -37.67 0.0237
2018-05-14 2018-03-31 13F CORNING COM 219350105 203,187 -20,811 -9.29 5,665 -20.95 0.0369
2018-02-14 2017-12-31 13F CORNING COM 219350105 223,998 32,633 17.05 7,166 25.15 0.0497
2017-11-13 2017-09-30 13F CORNING COM 219350105 191,365 2,449 1.30 5,726 0.86 0.0526
2017-08-11 2017-06-30 13F CORNING COM 219350105 188,916 37,621 24.87 5,677 38.97 0.0566
2017-05-12 2017-03-31 13F/A-2 CORNING COM 219350105 151,295 48,535 47.23 4,085 63.79 0.0427
2017-05-08 2017-03-31 13F/A-1 CORNING COM 219350105 151,295 0 4,085 0.0427
2017-04-25 2017-03-31 13F CORNING COM 219350105 151,295 4,085
2017-02-13 2016-12-31 13F CORNING COM 219350105 102,760 16,930 19.73 2,494 22.86 0.0276
2016-11-10 2016-09-30 13F CORNING COM 219350105 85,830 -46,658 -35.22 2,030 -25.18 0.0283
2016-08-12 2016-06-30 13F CORNING COM 219350105 132,488 -1,734 -1.29 2,713 -3.25 0.0349
2016-05-06 2016-03-31 13F CORNING COM 219350105 134,222 -105,882 -44.10 2,804 -36.11 0.0386
2016-02-05 2015-12-31 13F CORNING COM 219350105 240,104 -27,577 -10.30 4,389 -4.23 0.0532
2015-11-06 2015-09-30 13F CORNING COM 219350105 267,681 7,214 2.77 4,583 -10.82 0.0644
2015-08-11 2015-06-30 13F CORNING COM 219350105 260,467 -54,695 -17.35 5,139 -28.11 0.0711
2015-05-08 2015-03-31 13F CORNING COM 219350105 315,162 315,162 0.00 7,148 0.0842
2015-01-30 2014-12-31 13F CORNING COM 219350105 0 -246,856 -100.00 0 -100.00
2014-11-06 2014-09-30 13F CORNING COM 219350105 246,856 2,870 1.18 4,774 -10.85 0.0633
2014-08-08 2014-06-30 13F CORNING COM 219350105 243,986 -42,359 -14.79 5,355 -10.18 0.0694
2014-05-07 2014-03-31 13F CORNING COM 219350105 286,345 8,888 3.20 5,962 20.59 0.0746
2014-02-04 2013-12-31 13F CORNING COM 219350105 277,457 150,975 119.36 4,944 167.97 0.0737
2013-11-07 2013-09-30 13F CORNING COM 219350105 126,482 -125,000 -49.71 1,845 -48.45 0.0438
2013-07-25 2013-06-30 13F CORNING COM 219350105 251,482 251,482 3,579 0.0702
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.