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MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionWallace Advisory Group, LLC
Latest Disclosed Ownership2,066 shares
Latest Disclosed Value $ 280,914
Wallace Advisory Group, LLC reports 23.17% decrease in ownership of GLW / Corning Incorporated

On April 21, 2026 - Wallace Advisory Group, LLC filed a 13F-HR form disclosing ownership of 2,066 shares of Corning Incorporated (MX:GLW) valued at $280,914 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 2,689 shares of Corning Incorporated. This represents a change in shares of -23.17% 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)
2026-04-21 2026-03-31 13F CORNING COM 219350105 2,066 -623 -23.17 281 19.15 0.1915
2026-01-23 2025-12-31 13F CORNING COM 219350105 2,689 -6,098 -69.40 235 -49.13 0.2470
2025-10-16 2025-09-30 13F CORNING COM 219350105 8,787 -623 -6.62 462 7.44 0.3714
2025-07-30 2025-06-30 13F CORNING COM 219350105 9,410 160 1.73 431 -2.05 0.3127
2025-04-09 2025-03-31 13F CORNING COM 219350105 9,250 -173 -1.84 440 3.29 0.3042
2025-01-14 2024-12-31 13F CORNING COM 219350105 9,423 -3,617 -27.74 425 -16.01 0.2940
2024-10-04 2024-09-30 13F CORNING COM 219350105 13,040 -432 -3.21 507 -3.25 0.3706
2024-08-15 2024-06-30 13F CORNING COM 219350105 13,472 3,684 37.64 523 75.50 0.3768
2024-04-12 2024-03-31 13F CORNING COM 219350105 9,788 -2,647 -21.29 298 -21.16 0.2239
2024-01-09 2023-12-31 13F CORNING COM 219350105 12,435 421 3.50 379 -10.00 0.2968
2023-10-05 2023-09-30 13F CORNING COM 219350105 12,014 306 2.61 421 1.69 0.3023
2023-07-11 2023-06-30 13F CORNING COM 219350105 11,708 0 0.00 413 0.00 0.3142
2023-05-11 2023-03-31 13F CORNING COM 219350105 11,708 891 8.24 413 19.71 0.3142
2023-02-21 2022-12-31 13F CORNING COM 219350105 10,817 10,817 345 0.2727
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.