Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionCanton Hathaway, LLC
Latest Disclosed Ownership7,000 shares
Latest Disclosed Value $ 951,790
Canton Hathaway, LLC ownership in GLW / Corning Incorporated

On April 24, 2026 - Canton Hathaway, LLC filed a 13F-HR form disclosing ownership of 7,000 shares of Corning Incorporated (MX:GLW) valued at $951,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 7,000 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)
2026-04-24 2026-03-31 13F Corning COM 219350105 7,000 0 0.00 952 55.39 0.1920
2026-01-21 2025-12-31 13F Corning COM 219350105 7,000 0 0.00 613 6.62 0.1182
2025-10-23 2025-09-30 13F Corning COM 219350105 7,000 0 0.00 574 0.1100
2025-08-04 2025-06-30 13F Corning COM 219350105 7,000 0 0.00 0 0.0750
2025-04-22 2025-03-31 13F Corning COM 219350105 7,000 -335 -4.57 0 0.0647
2025-02-04 2024-12-31 13F Corning COM 219350105 7,335 0 0.00 0 0.0872
2024-11-13 2024-09-30 13F Corning COM 219350105 7,335 1,000 15.79 0 0.0826
2024-07-22 2024-06-30 13F Corning COM 219350105 6,335 6,335 0 0.0673
2022-04-12 2022-03-31 13F Corning COM 219350105 0 -743 -100.00 0 -100.00
2022-01-06 2021-12-31 13F Corning COM 219350105 743 0 0.00 28 3.70 0.0076
2021-10-14 2021-09-30 13F Corning COM 219350105 743 335 82.11 27 58.82 0.0078
2021-07-08 2021-06-30 13F Corning COM 219350105 408 408 17 0.0050
2020-05-06 2020-03-31 13F Corning COM 219350105 0 -18,311 -100.00 0 -100.00
2020-01-10 2019-12-31 13F Corning COM 219350105 18,311 -9,840 -34.95 533 -33.62 0.2739
2019-10-11 2019-09-30 13F Corning COM 219350105 28,151 -2,829 -9.13 803 -21.96 0.4452
2019-07-15 2019-06-30 13F Corning COM 219350105 30,980 6,470 26.40 1,029 26.88 0.5762
2019-04-10 2019-03-31 13F Corning COM 219350105 24,510 24,510 811 0.4720
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.