Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionAdirondack Trust Co
Latest Disclosed Ownership3,887 shares
Latest Disclosed Value $ 528,514
Adirondack Trust Co ownership in GLW / Corning Incorporated

On April 3, 2026 - Adirondack Trust Co filed a 13F-HR form disclosing ownership of 3,887 shares of Corning Incorporated (MX:GLW) valued at $528,514 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 3,887 shares of Corning Incorporated. This represents a change in shares of 0.00% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-03 2026-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,887 0 0.00 529 55.29 0.1776
2026-01-08 2025-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,887 0 0.00 340 6.92 0.1119
2025-10-20 2025-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,887 -8 -0.21 319 55.88 0.1069
2025-07-11 2025-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,895 1,000 34.54 205 54.55 0.0744
2025-04-03 2025-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 2,895 0 0.00 133 -3.65 0.0518
2025-01-17 2024-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 2,895 0 0.00 138 5.38 0.0525
2024-10-08 2024-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 2,895 -8,800 -75.25 131 -71.37 0.0503
2024-07-09 2024-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 11,695 0 0.00 454 17.92 0.1855
2024-04-09 2024-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 11,695 0 0.00 385 2.39 0.1613
2024-03-29 2023-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 11,695 -315 -2.62 377 3.01 0.1629
2023-10-31 2023-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,010 0 0.00 366 -10.32 0.1826
2023-08-09 2023-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,010 -30 -0.25 407 -4.01 0.1904
2023-04-28 2023-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 12,040 0 0.00 425 10.42 0.2151
2023-01-13 2022-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 12,040 0 0.00 384 10.03 0.1989
2022-10-13 2022-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,040 -365 -2.94 349 -10.74 0.1950
2022-07-06 2022-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,405 0 0.00 391 -14.63 0.2096
2022-04-05 2022-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 12,405 0 0.00 458 -0.87 0.2167
2022-01-13 2021-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 12,405 0 0.00 462 4.76 0.2204
2021-11-16 2021-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,405 0 0.00 441 -13.02 0.2097
2021-07-15 2021-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,405 0 0.00 507 -6.11 0.2557
2021-04-16 2021-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 12,405 -500 -3.87 540 16.63 0.2875
2021-02-12 2020-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 12,905 30 0.23 463 11.03 0.2784
2020-10-05 2020-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,875 0 0.00 417 4.51 0.2735
2020-08-19 2020-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,875 8,800 215.95 399 375.00 0.2640
2020-04-23 2020-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 4,075 850 26.36 84 -2.33 0.0686
2020-02-11 2019-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,225 -158 -4.67 86 -10.42 0.0564
2019-10-09 2019-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,383 0 0.00 96 -14.29 0.0674
2019-07-15 2019-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,383 0 0.00 112 3.70 0.0782
2019-05-13 2019-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,383 0 0.00 108 5.88 0.0741
2019-01-18 2018-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,383 83 2.52 102 -12.07 0.0790
2018-10-22 2018-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,300 0 0.00 116 27.47 0.0782
2018-07-26 2018-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,300 0 0.00 91 2.25 0.0642
2018-05-03 2018-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,300 0 0.00 89 -16.04 0.0634
2018-01-10 2017-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,300 -70 -2.08 106 4.95 0.0769
2017-10-12 2017-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,370 100 3.06 101 3.06 0.0793
2017-08-02 2017-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,270 0 0.00 98 11.36 0.0789
2017-04-12 2017-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,270 0 0.00 88 11.39 0.0615
2017-01-17 2016-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 3,270 0 0.00 79 2.60 0.0550
2016-10-21 2016-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 3,270 -1,074 -24.72 77 -13.48 0.0554
2016-07-13 2016-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 4,344 59 1.38 89 0.00 0.0633
2016-04-12 2016-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 4,285 0 0.00 89 11.25 0.0660
2016-02-08 2015-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 4,285 -2,625 -37.99 80 -32.20 0.0633
2015-10-19 2015-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 6,910 -120 -1.71 118 -15.11 0.0951
2015-07-30 2015-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 7,030 1,690 31.65 139 14.88 0.1036
2015-04-07 2015-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 5,340 5,340 0.00 121 0.0904
2015-01-27 2014-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 0 -5,545 -100.00 0 -100.00
2014-10-28 2014-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 5,545 100 1.84 107 -10.83 0.0812
2014-07-23 2014-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 5,445 370 7.29 120 13.21 0.0917
2014-04-17 2014-03-31 13F CORNING INFORMATION TECHNOLOGY 219350105 5,075 0 0.00 106 17.78 0.0845
2014-01-07 2013-12-31 13F CORNING INFORMATION TECHNOLOGY 219350105 5,075 0 0.00 90 21.62 0.0729
2013-10-04 2013-09-30 13F CORNING INFORMATION TECHNOLOGY 219350105 5,075 -7,445 -59.46 74 -58.43 0.0651
2013-08-14 2013-06-30 13F CORNING INFORMATION TECHNOLOGY 219350105 12,520 12,520 178 0.1619
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.