Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionWidmann Financial Services, Inc.
Latest Disclosed Ownership9,868 shares
Latest Disclosed Value $ 1,341,718
Widmann Financial Services, Inc. reports 6.39% decrease in ownership of GLW / Corning Incorporated

On May 15, 2026 - Widmann Financial Services, Inc. filed a 13F-HR form disclosing ownership of 9,868 shares of Corning Incorporated (MX:GLW) valued at $1,341,718 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 10,542 shares of Corning Incorporated. This represents a change in shares of -6.39% 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)
2026-05-15 2026-03-31 13F CORNING COM 219350105 9,868 -674 -6.39 1,342 45.29 0.7979
2026-02-17 2025-12-31 13F CORNING COM 219350105 10,542 400 3.94 923 11.07 0.5647
2025-11-14 2025-09-30 13F CORNING COM 219350105 10,142 1 0.01 832 55.91 0.5231
2025-08-14 2025-06-30 13F CORNING COM 219350105 10,141 1 0.01 533 14.87 0.3719
2025-05-14 2025-03-31 13F CORNING COM 219350105 10,140 2 0.02 464 -3.53 0.3606
2025-02-14 2024-12-31 13F CORNING COM 219350105 10,138 -951 -8.58 482 -3.80 0.3728
2024-11-14 2024-09-30 13F CORNING COM 219350105 11,089 1 0.01 501 16.28 0.3791
2024-08-14 2024-06-30 13F CORNING COM 219350105 11,088 162 1.48 431 19.44 0.3504
2024-05-14 2024-03-31 13F CORNING COM 219350105 10,926 62 0.57 360 9.09 0.3025
2024-02-13 2023-12-31 13F CORNING COM 219350105 10,864 -5,143 -32.13 331 -32.24 0.2979
2023-11-06 2023-09-30 13F CORNING COM 219350105 16,007 3,564 28.64 488 11.70 0.4859
2023-08-04 2023-06-30 13F CORNING COM 219350105 12,443 291 2.39 436 1.87 0.4171
2023-05-09 2023-03-31 13F CORNING COM 219350105 12,152 397 3.38 429 14.13 0.4321
2023-02-06 2022-12-31 13F CORNING COM 219350105 11,755 2 0.02 375 -99.89 0.3931
2022-11-14 2022-09-30 13F Corning COM 219350105 11,753 27 0.23 341,085 92,334.96 0.3778
2022-08-01 2022-06-30 13F Corning COM 219350105 11,726 1,111 10.47 369 -5.63 0.3818
2022-05-04 2022-03-31 13F Corning COM 219350105 10,615 650 6.52 391 5.68 0.3464
2022-01-28 2021-12-31 13F Corning COM 219350105 9,965 9,965 370 0.3049
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.