Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionSuccessful Portfolios LLC
Latest Disclosed Ownership5,044 shares
Latest Disclosed Value $ 659,508
Successful Portfolios LLC reports 0.02% increase in ownership of GLW / Corning Incorporated

On April 13, 2026 - Successful Portfolios LLC filed a 13F-HR form disclosing ownership of 5,044 shares of Corning Incorporated (MX:GLW) valued at $659,508 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 5,043 shares of Corning Incorporated. This represents a change in shares of 0.02% 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)
2026-04-13 2026-03-31 13F CORNING COM 219350105 5,044 1 0.02 660 53.61 0.3635
2026-01-23 2025-12-31 13F CORNING COM 219350105 5,043 0 0.00 430 3.87 0.2190
2025-10-15 2025-09-30 13F CORNING COM 219350105 5,043 -360 -6.66 414 45.42 0.2414
2025-07-21 2025-06-30 13F CORNING COM 219350105 5,403 -7 -0.13 284 14.98 0.1747
2025-04-11 2025-03-31 13F CORNING COM 219350105 5,410 -20 -0.37 248 -4.26 0.1684
2025-01-16 2024-12-31 13F CORNING COM 219350105 5,430 -5 -0.09 258 5.31 0.1726
2024-10-09 2024-09-30 13F CORNING COM 219350105 5,435 5,435 245 0.1660
2023-10-11 2023-09-30 13F CORNING COM 219350105 0 -6,000 -100.00 0 -100.00
2023-07-20 2023-06-30 13F CORNING COM 219350105 6,000 0 0.00 210 -0.47 0.1810
2023-04-24 2023-03-31 13F CORNING COM 219350105 6,000 6,000 212 0.1329
2022-07-22 2022-06-30 13F CORNING COM 219350105 0 -6,200 -100.00 0 -100.00
2022-04-21 2022-03-31 13F CORNING COM 219350105 6,200 -125 -1.98 229 -2.55 0.1304
2022-01-26 2021-12-31 13F CORNING COM 219350105 6,325 0 0.00 235 1.73 0.1277
2021-10-14 2021-09-30 13F CORNING COM 219350105 6,325 25 0.40 231 -10.47 0.1379
2021-07-23 2021-06-30 13F CORNING COM 219350105 6,300 0 0.00 258 -5.84 0.1564
2021-04-20 2021-03-31 13F CORNING COM 219350105 6,300 0 0.00 274 20.70 0.1806
2021-02-02 2020-12-31 13F CORNING COM 219350105 6,300 0 0.00 227 11.27 0.1628
2020-10-13 2020-09-30 13F CORNING COM 219350105 6,300 6,300 204 0.1628
2019-10-11 2019-09-30 13F CORNING COM 219350105 0 -6,366 -100.00 0 -100.00
2019-07-11 2019-06-30 13F CORNING COM 219350105 6,366 -7 -0.11 212 0.47 0.2275
2019-04-22 2019-03-31 13F CORNING COM 219350105 6,373 6,373 211 0.2307
2019-01-14 2018-12-31 13F CORNING COM 219350105 0 -6,382 -100.00 0 -100.00
2018-10-15 2018-09-30 13F CORNING COM 219350105 6,382 6,382 225 0.2450
2018-05-08 2018-03-31 13F CORNING COM 219350105 0 -6,553 -100.00 0 -100.00
2018-02-09 2017-12-31 13F CORNING COM 219350105 6,553 6,553 210 0.2609
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.