Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionLedyard National Bank
Latest Disclosed Ownership3,445 shares
Latest Disclosed Value $ 468,417
Ledyard National Bank reports 24.78% decrease in ownership of GLW / Corning Incorporated

On April 24, 2026 - Ledyard National Bank filed a 13F-HR form disclosing ownership of 3,445 shares of Corning Incorporated (MX:GLW) valued at $468,417 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 4,580 shares of Corning Incorporated. This represents a change in shares of -24.78% 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 3,445 -1,135 -24.78 468 16.71 0.0235
2026-01-21 2025-12-31 13F CORNING Com 219350105 4,580 0 0.00 401 6.93 0.0345
2025-11-05 2025-09-30 13F CORNING Com 219350105 4,580 4,580 376 0.0191
2019-07-26 2019-06-30 13F CORNING Com 219350105 0 -6,484 -100.00 0 -100.00
2019-04-12 2019-03-31 13F CORNING Com 219350105 6,484 -9,800 -60.18 214 -56.50 0.0283
2019-01-29 2018-12-31 13F CORNING Com 219350105 16,284 2,880 21.49 492 4.02 0.0649
2018-10-24 2018-09-30 13F CORNING Com 219350105 13,404 54 0.40 473 28.88 0.0538
2018-07-11 2018-06-30 13F CORNING Com 219350105 13,350 -200 -1.48 367 -2.91 0.0439
2018-04-16 2018-03-31 13F CORNING Com 219350105 13,550 0 0.00 378 -12.70 0.0460
2018-01-30 2017-12-31 13F CORNING Com 219350105 13,550 700 5.45 433 12.47 0.0525
2017-10-10 2017-09-30 13F CORNING Com 219350105 12,850 650 5.33 385 4.90 0.0511
2017-07-14 2017-06-30 13F CORNING Com 219350105 12,200 -5,460 -30.92 367 -23.06 0.0526
2017-04-19 2017-03-31 13F CORNING Com 219350105 17,660 16,960 2,422.86 477 2,705.88 0.0715
2017-02-02 2016-12-31 13F CORNING Com 219350105 700 0 0.00 17 0.00 0.0030
2016-10-25 2016-09-30 13F CORNING Com 219350105 700 0 0.00 17 21.43 0.0030
2016-07-25 2016-06-30 13F CORNING Com 219350105 700 0 0.00 14 -6.67 0.0025
2016-04-14 2016-03-31 13F CORNING Com 219350105 700 0 0.00 15 15.38 0.0027
2016-01-25 2015-12-31 13F CORNING Com 219350105 700 0 0.00 13 8.33 0.0023
2015-10-19 2015-09-30 13F CORNING Com 219350105 700 0 0.00 12 -14.29 0.0023
2015-07-16 2015-06-30 13F CORNING Com 219350105 700 0 0.00 14 -12.50 0.0024
2015-04-15 2015-03-31 13F CORNING Com 219350105 700 -210 -23.08 16 -23.81 0.0029
2015-01-16 2014-12-31 13F CORNING Com 219350105 910 0 0.00 21 16.67 0.0039
2014-10-09 2014-09-30 13F CORNING Com 219350105 910 0 0.00 18 -10.00 0.0034
2014-07-08 2014-06-30 13F CORNING Com 219350105 910 0 0.00 20 5.26 0.0047
2014-04-11 2014-03-31 13F CORNING Com 219350105 910 -400 -30.53 19 -17.39 0.0032
2014-01-14 2013-12-31 13F CORNING Com 219350105 1,310 210 19.09 23 43.75 0.0038
2013-10-08 2013-09-30 13F CORNING Com 219350105 1,100 -1,300 -54.17 16 -52.94 0.0028
2013-07-30 2013-06-30 13F CORNING Com 219350105 2,400 2,400 34 0.0063
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.