Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionWashington Trust Bank
Latest Disclosed Ownership37,900 shares
Latest Disclosed Value $ 5,153,263
Washington Trust Bank reports 0.26% decrease in ownership of GLW / Corning Incorporated

On May 7, 2026 - Washington Trust Bank filed a 13F-HR form disclosing ownership of 37,900 shares of Corning Incorporated (MX:GLW) valued at $5,153,263 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 38,000 shares of Corning Incorporated. This represents a change in shares of -0.26% 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)
2026-05-07 2026-03-31 13F CORNING COM 219350105 37,900 -100 -0.26 5,153 54.88 0.3136
2026-02-04 2025-12-31 13F CORNING COM 219350105 38,000 0 0.00 3,327 6.74 0.2331
2025-10-24 2025-09-30 13F CORNING COM 219350105 38,000 -1,417 -3.59 3,117 50.43 0.2284
2025-08-06 2025-06-30 13F CORNING COM 219350105 39,417 -4,083 -9.39 2,073 4.07 0.1746
2025-04-30 2025-03-31 13F CORNING COM 219350105 43,500 5,500 14.47 1,991 10.30 0.1995
2025-02-11 2024-12-31 13F CORNING COM 219350105 38,000 -150 -0.39 1,806 4.82 0.1734
2024-10-31 2024-09-30 13F CORNING COM 219350105 38,150 150 0.39 1,722 16.67 0.1649
2024-07-29 2024-06-30 13F CORNING COM 219350105 38,000 -300 -0.78 1,476 16.96 0.1460
2024-05-14 2024-03-31 13F CORNING COM 219350105 38,300 0 0.00 1,262 8.23 0.1203
2024-02-14 2023-12-31 13F CORNING COM 219350105 38,300 0 0.00 1,166 -0.09 0.1033
2023-11-06 2023-09-30 13F CORNING COM 219350105 38,300 -127 -0.33 1,167 -13.30 0.1219
2023-08-10 2023-06-30 13F CORNING COM 219350105 38,427 -2,781 -6.75 1,346 -7.36 0.1374
2023-05-15 2023-03-31 13F CORNING COM 219350105 41,208 -250 -0.60 1,454 145,200.00 0.1555
2023-02-06 2022-12-31 13F CORNING COM 219350105 41,458 -9,775 -19.08 1 -99.93 0.1501
2022-11-16 2022-09-30 13F CORNING COM 219350105 51,233 0 0.00 1,487 -7.87 0.1890
2022-08-04 2022-06-30 13F CORNING COM 219350105 51,233 2,858 5.91 1,614 -9.58 0.2073
2022-05-13 2022-03-31 13F CORNING COM 219350105 48,375 0 0.00 1,785 -0.89 0.2065
2022-02-09 2021-12-31 13F CORNING COM 219350105 48,375 629 1.32 1,801 3.39 0.1742
2021-10-27 2021-09-30 13F CORNING COM 219350105 47,746 9,146 23.69 1,742 10.32 0.2035
2021-07-28 2021-06-30 13F CORNING COM 219350105 38,600 -200 -0.52 1,579 -6.46 0.1871
2021-04-22 2021-03-31 13F CORNING COM 219350105 38,800 0 0.00 1,688 20.83 0.2079
2021-02-08 2020-12-31 13F CORNING COM 219350105 38,800 0 0.00 1,397 11.14 0.1822
2020-11-12 2020-09-30 13F CORNING COM 219350105 38,800 -2,728 -6.57 1,257 16.93 0.1860
2020-07-29 2020-06-30 13F CORNING COM 219350105 41,528 0 0.00 1,075 26.03 0.1710
2020-05-01 2020-03-31 13F CORNING COM 219350105 41,528 2,978 7.73 853 -23.98 0.1636
2020-01-29 2019-12-31 13F CORNING COM 219350105 38,550 50 0.13 1,122 2.19 0.1596
2019-10-29 2019-09-30 13F CORNING COM 219350105 38,500 7,205 23.02 1,098 5.58 0.1797
2019-07-26 2019-06-30 13F CORNING COM 219350105 31,295 0 0.00 1,040 0.39 0.1691
2019-04-09 2019-03-31 13F Corning COM 219350105 31,295 -300 -0.95 1,036 8.60 0.1651
2019-02-13 2018-12-31 13F Corning COM 219350105 31,595 0 0.00 954 -14.52 0.1253
2018-11-14 2018-09-30 13F Corning COM 219350105 31,595 -200 -0.63 1,116 27.54 0.1658
2018-07-03 2018-06-30 13F Corning COM 219350105 31,795 0 0.00 875 -1.35 0.1218
2018-04-03 2018-03-31 13F Corning COM 219350105 31,795 -1,265 -3.83 887 -16.08 0.1272
2018-01-03 2017-12-31 13F Corning COM 219350105 33,060 1,060 3.31 1,057 10.45 0.1546
2017-10-05 2017-09-30 13F Corning COM 219350105 32,000 -535 -1.64 957 -2.15 0.1518
2017-07-20 2017-06-30 13F Corning COM 219350105 32,535 -1,165 -3.46 978 7.47 0.2098
2017-04-18 2017-03-31 13F Corning COM 219350105 33,700 -42 -0.12 910 11.11 0.1964
2017-01-17 2016-12-31 13F Corning COM 219350105 33,742 0 0.00 819 2.63 0.1846
2016-10-04 2016-09-30 13F Corning COM 219350105 33,742 -2,491 -6.87 798 7.55 0.1919
2016-07-07 2016-06-30 13F Corning COM 219350105 36,233 -627 -1.70 742 -3.64 0.1921
2016-04-25 2016-03-31 13F Corning COM 219350105 36,860 0 0.00 770 14.24 0.1990
2016-01-21 2015-12-31 13F Corning COM 219350105 36,860 30 0.08 674 6.81 0.1468
2015-10-07 2015-09-30 13F Corning Common Stock 219350105 36,830 625 1.73 631 -11.62 0.1677
2015-07-10 2015-06-30 13F Corning Common Stock 219350105 36,205 470 1.32 714 -11.85 0.1742
2015-04-17 2015-03-31 13F Corning Common Stock 219350105 35,735 -5,560 -13.46 810 -14.47 0.1952
2015-01-15 2014-12-31 13F Corning Common Stock 219350105 41,295 -5,066 -10.93 947 5.57 0.2472
2014-11-21 2014-09-30 13F Corning Common Stock 219350105 46,361 355 0.77 897 -11.19 0.2814
2014-08-08 2014-06-30 13F Corning Common Stock 219350105 46,006 -170 -0.37 1,010 5.10 0.2053
2014-05-15 2014-03-31 13F Corning Common Stock 219350105 46,176 46,176 961 0.2029
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.