Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionDuncker Streett & Co Inc
Latest Disclosed Ownership1,300 shares
Latest Disclosed Value $ 176,761
Duncker Streett & Co Inc ownership in GLW / Corning Incorporated

On April 29, 2026 - Duncker Streett & Co Inc filed a 13F-HR form disclosing ownership of 1,300 shares of Corning Incorporated (MX:GLW) valued at $176,761 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 1,300 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.

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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)
2026-04-29 2026-03-31 13F CORNING COM 219350105 1,300 0 0.00 177 55.75 0.0336
2026-01-27 2025-12-31 13F CORNING COM 219350105 1,300 0 0.00 114 6.60 0.0202
2025-10-23 2025-09-30 13F CORNING COM 219350105 1,300 0 0.00 107 55.88 0.0186
2025-07-28 2025-06-30 13F CORNING COM 219350105 1,300 0 0.00 68 15.25 0.0125
2025-04-22 2025-03-31 13F CORNING COM 219350105 1,300 0 0.00 60 -3.28 0.0118
2025-02-05 2024-12-31 13F CORNING COM 219350105 1,300 0 0.00 62 5.17 0.0115
2024-11-12 2024-09-30 13F CORNING COM 219350105 1,300 0 0.00 59 16.00 0.0107
2024-07-31 2024-06-30 13F CORNING COM 219350105 1,300 -1,038 -44.40 51 -35.06 0.0097
2024-04-23 2024-03-31 13F CORNING COM 219350105 2,338 0 0.00 77 8.45 0.0152
2024-01-30 2023-12-31 13F CORNING COM 219350105 2,338 0 0.00 71 0.00 0.0150
2023-10-26 2023-09-30 13F CORNING COM 219350105 2,338 0 0.00 71 -12.35 0.0166
2023-07-20 2023-06-30 13F CORNING COM 219350105 2,338 -462 -16.50 82 -17.35 0.0183
2023-04-24 2023-03-31 13F CORNING COM 219350105 2,800 0 0.00 99 10.11 0.0235
2023-01-25 2022-12-31 13F CORNING COM 219350105 2,800 0 0.00 89 9.88 0.0216
2022-11-04 2022-09-30 13F CORNING COM 219350105 2,800 0 0.00 81 -7.95 0.0210
2022-08-04 2022-06-30 13F CORNING COM 219350105 2,800 0 0.00 88 -14.56 0.0211
2022-05-09 2022-03-31 13F CORNING COM 219350105 2,800 0 0.00 103 -0.96 0.0205
2022-02-08 2021-12-31 13F CORNING COM 219350105 2,800 -550 -16.42 104 -14.75 0.0179
2021-11-03 2021-09-30 13F CORNING COM 219350105 3,350 -500 -12.99 122 -22.29 0.0231
2021-07-27 2021-06-30 13F CORNING COM 219350105 3,850 -400 -9.41 157 -15.14 0.0289
2021-04-28 2021-03-31 13F CORNING COM 219350105 4,250 0 0.00 185 20.92 0.0353
2021-02-02 2020-12-31 13F CORNING COM 219350105 4,250 0 0.00 153 10.87 0.0296
2020-10-28 2020-09-30 13F CORNING COM 219350105 4,250 -1,250 -22.73 138 -2.82 0.0301
2020-07-22 2020-06-30 13F CORNING COM 219350105 5,500 -500 -8.33 142 15.45 0.0338
2020-04-27 2020-03-31 13F CORNING COM 219350105 6,000 0 0.00 123 -29.71 0.0328
2020-01-27 2019-12-31 13F CORNING COM 219350105 6,000 6,000 175 0.0367
2019-10-31 2019-09-30 13F CORNING COM 219350105 0 -6,000 -100.00 0 -100.00
2019-07-24 2019-06-30 13F CORNING COM 219350105 6,000 0 0.00 199 0.00 0.0447
2019-04-29 2019-03-31 13F CORNING COM 219350105 6,000 0 0.00 199 9.94 0.0459
2019-01-24 2018-12-31 13F CORNING COM 219350105 6,000 0 0.00 181 -14.62 0.0485
2018-10-22 2018-09-30 13F CORNING COM 219350105 6,000 0 0.00 212 28.48 0.0482
2018-07-23 2018-06-30 13F CORNING COM 219350105 6,000 0 0.00 165 -1.20 0.0409
2018-04-26 2018-03-31 13F CORNING COM 219350105 6,000 0 0.00 167 -13.02 0.0423
2018-01-23 2017-12-31 13F CORNING COM 219350105 6,000 0 0.00 192 6.67 0.0494
2017-10-25 2017-09-30 13F CORNING COM 219350105 6,000 0 0.00 180 0.00 0.0545
2017-07-21 2017-06-30 13F CORNING COM 219350105 6,000 0 0.00 180 11.11 0.0561
2017-04-25 2017-03-31 13F CORNING COM 219350105 6,000 -550 -8.40 162 1.89 0.0508
2017-01-26 2016-12-31 13F CORNING COM 219350105 6,550 5,750 718.75 159 736.84 0.0529
2016-10-20 2016-09-30 13F CORNING COM 219350105 800 400 100.00 19 137.50 0.0066
2016-07-20 2016-06-30 13F CORNING COM 219350105 400 0 0.00 8 0.00 0.0028
2016-04-25 2016-03-31 13F CORNING COM 219350105 400 0 0.00 8 14.29 0.0030
2016-01-20 2015-12-31 13F CORNING COM 219350105 400 -400 -50.00 7 -50.00 0.0026
2015-10-27 2015-09-30 13F CORNING COM 219350105 800 0 0.00 14 -12.50 0.0054
2015-07-20 2015-06-30 13F CORNING COM 219350105 800 -600 -42.86 16 -50.00 0.0056
2015-04-28 2015-03-31 13F CORNING COM 219350105 1,400 1,000 250.00 32 255.56 0.0105
2015-01-22 2014-12-31 13F CORNING COM 219350105 400 400 0.00 9 0.0030
2014-10-23 2014-09-30 13F CORNING COM 219350105 0 -1,000 -100.00 0 -100.00
2014-07-23 2014-06-30 13F CORNING COM 219350105 1,000 400 66.67 22 83.33 0.0071
2014-04-23 2014-03-31 13F CORNING COM 219350105 600 0 0.00 12 9.09 0.0042
2014-01-22 2013-12-31 13F CORNING COM 219350105 600 0 0.00 11 22.22 0.0040
2013-10-23 2013-09-30 13F CORNING COM 219350105 600 0 0.00 9 0.00 0.0036
2013-07-26 2013-06-30 13F CORNING COM 219350105 600 600 9 0.0034
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.