Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionCi Investments Inc.
Latest Disclosed Ownership36,431 shares
Latest Disclosed Value $ 4,953,523
Ci Investments Inc. reports 5.02% decrease in ownership of GLW / Corning Incorporated

On May 13, 2026 - Ci Investments Inc. filed a 13F-HR form disclosing ownership of 36,431 shares of Corning Incorporated (MX:GLW) valued at $4,953,523 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 38,356 shares of Corning Incorporated. This represents a change in shares of -5.02% 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)
2026-05-13 2026-03-31 13F CORNING COM 219350105 36,431 -1,925 -5.02 4,954 47.50 0.0169
2026-02-12 2025-12-31 13F CORNING COM 219350105 38,356 23,841 164.25 3,358 335,700.00 0.0147
2025-11-12 2025-09-30 13F CORNING COM 219350105 14,515 1,524 11.73 1 0.0043
2025-08-12 2025-06-30 13F CORNING COM 219350105 12,991 -291 -2.19 1 0.0026
2025-05-13 2025-03-31 13F CORNING COM 219350105 13,282 2,627 24.66 1 0.0026
2025-02-12 2024-12-31 13F CORNING COM 219350105 10,655 7,275 215.24 1 0.0019
2024-11-12 2024-09-30 13F CORNING COM 219350105 3,380 -183 -5.14 0 0.0006
2024-08-12 2024-06-30 13F CORNING COM 219350105 3,563 95 2.74 0 0.0005
2024-05-13 2024-03-31 13F CORNING COM 219350105 3,468 1,323 61.68 0 0.0005
2024-02-12 2023-12-31 13F CORNING COM 219350105 2,145 -199 -8.49 0 0.0003
2023-11-13 2023-09-30 13F CORNING COM 219350105 2,344 -105 -4.29 0 0.0004
2023-08-11 2023-06-30 13F CORNING COM 219350105 2,449 405 19.81 0 0.0004
2023-05-12 2023-03-31 13F CORNING COM 219350105 2,044 -106 -4.93 0 0.0004
2023-02-10 2022-12-31 13F CORNING COM 219350105 2,150 1,133 111.41 0 -100.00 0.0003
2022-11-14 2022-09-30 13F CORNING COM 219350105 1,017 923 981.91 30 900.00 0.0002
2022-08-12 2022-06-30 13F CORNING COM 219350105 94 -1 -1.05 3 -25.00 0.0000
2022-05-12 2022-03-31 13F CORNING COM 219350105 95 0 0.00 4 0.00 0.0000
2022-02-11 2021-12-31 13F CORNING COM 219350105 95 0 0.00 4 33.33 0.0000
2021-11-12 2021-09-30 13F CORNING COM 219350105 95 95 3 0.0000
2021-08-13 2021-06-30 13F CORNING COM 219350105 0 -7,476 -100.00 0 -100.00
2021-05-13 2021-03-31 13F CORNING COM 219350105 7,476 824 12.39 325 35.98 0.0014
2021-02-09 2020-12-31 13F CORNING COM 219350105 6,652 -897 -11.88 239 -2.45 0.0011
2020-11-09 2020-09-30 13F CORNING COM 219350105 7,549 -474 -5.91 245 17.79 0.0012
2020-08-07 2020-06-30 13F CORNING COM 219350105 8,023 -1,044 -11.51 208 11.83 0.0011
2020-08-07 2020-03-31 13F CORNING COM 219350105 9,067 -4,889 -35.03 186 -54.19 0.0011
2020-02-11 2019-12-31 13F CORNING COM 219350105 13,956 1,876 15.53 406 17.68 0.0021
2019-11-08 2019-09-30 13F CORNING COM 219350105 12,080 12,080 345 0.0018
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.