Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionReik & Co., Llc
Latest Disclosed Ownership17,971 shares
Latest Disclosed Value $ 2,443,517
Reik & Co., Llc ownership in GLW / Corning Incorporated

On May 5, 2026 - Reik & Co., Llc filed a 13F-HR form disclosing ownership of 17,971 shares of Corning Incorporated (MX:GLW) valued at $2,443,517 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 17,971 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.

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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)
2026-05-05 2026-03-31 13F CORNING COM 219350105 17,971 0 0.00 2,444 55.31 0.3673
2026-02-05 2025-12-31 13F CORNING COM 219350105 17,971 -925 -4.90 1,574 1.48 0.4328
2025-11-04 2025-09-30 13F CORNING COM 219350105 18,896 66 0.35 1,550 56.57 0.3982
2025-08-07 2025-06-30 13F CORNING COM 219350105 18,830 0 0.00 990 14.85 0.2472
2025-05-06 2025-03-31 13F CORNING COM 219350105 18,830 0 0.00 862 -3.58 0.2006
2025-01-29 2024-12-31 13F CORNING COM 219350105 18,830 0 0.00 895 5.18 0.2150
2024-10-31 2024-09-30 13F CORNING COM 219350105 18,830 0 0.00 850 16.28 0.2022
2024-07-24 2024-06-30 13F CORNING COM 219350105 18,830 0 0.00 732 17.90 0.1891
2024-04-29 2024-03-31 13F CORNING COM 219350105 18,830 0 0.00 621 8.20 0.1550
2024-01-26 2023-12-31 13F CORNING COM 219350105 18,830 -1,170 -5.85 573 -5.91 0.1610
2023-11-06 2023-09-30 13F CORNING COM 219350105 20,000 -3,570 -15.15 609 -26.18 0.1786
2023-07-31 2023-06-30 13F CORNING COM 219350105 23,570 0 0.00 826 -0.72 0.2275
2023-05-10 2023-03-31 13F CORNING COM 219350105 23,570 -630 -2.60 832 0.2448
2023-01-31 2022-12-31 13F CORNING COM 219350105 24,200 0 0.00 1 -100.00 0.2226
2022-11-02 2022-09-30 13F CORNING COM 219350105 24,200 0 0.00 702 -7.99 0.2249
2022-07-27 2022-06-30 13F CORNING COM 219350105 24,200 0 0.00 763 -14.56 0.2153
2022-04-29 2022-03-31 13F CORNING COM 219350105 24,200 0 0.00 893 -0.89 0.2229
2022-01-28 2021-12-31 13F CORNING COM 219350105 24,200 0 0.00 901 2.04 0.2152
2021-10-26 2021-09-30 13F CORNING COM 219350105 24,200 0 0.00 883 -10.81 0.2286
2021-08-17 2021-06-30 13F/A-1 CORNING COM 219350105 24,200 0 0.00 990 -5.98 0.2526
2021-08-10 2021-06-30 13F CORNING COM 219350105 24,200 0 1,053 0.1475
2021-04-26 2021-03-31 13F CORNING COM 219350105 24,200 0 0.00 1,053 20.90 0.2680
2021-01-27 2020-12-31 13F CORNING COM 219350105 24,200 -1,000 -3.97 871 6.61 0.2256
2020-10-29 2020-09-30 13F CORNING COM 219350105 25,200 0 0.00 817 25.11 0.2079
2020-08-05 2020-06-30 13F CORNING COM 219350105 25,200 550 2.23 653 29.05 0.1804
2020-04-29 2020-03-31 13F CORNING COM 219350105 24,650 280 1.15 506 -28.63 0.1621
2020-01-24 2019-12-31 13F CORNING COM 219350105 24,370 0 0.00 709 2.01 0.1826
2019-11-01 2019-09-30 13F CORNING COM 219350105 24,370 0 0.00 695 -14.20 0.1832
2019-07-29 2019-06-30 13F CORNING COM 219350105 24,370 560 2.35 810 2.79 0.2172
2019-04-26 2019-03-31 13F CORNING COM 219350105 23,810 0 0.00 788 9.60 0.2153
2019-01-29 2018-12-31 13F CORNING COM 219350105 23,810 0 0.00 719 -14.40 0.2159
2018-11-05 2018-09-30 13F/A-1 CORNING COM 219350105 23,810 0 0.00 840 28.24 0.2401
2018-10-29 2018-09-30 13F CORNING COM 219350105 23,810 0 840
2018-08-06 2018-06-30 13F CORNING COM 219350105 23,810 -200 -0.83 655 -2.09 0.2018
2018-04-25 2018-03-31 13F CORNING COM 219350105 24,010 825 3.56 669 -9.84 0.2177
2018-01-31 2017-12-31 13F CORNING COM 219350105 23,185 1,935 9.11 742 16.67 0.2377
2017-10-26 2017-09-30 13F CORNING COM 219350105 21,250 835 4.09 636 3.75 0.2123
2017-07-28 2017-06-30 13F CORNING COM 219350105 20,415 0 0.00 613 11.25 0.2048
2017-04-24 2017-03-31 13F CORNING COM 219350105 20,415 0 0.00 551 11.31 0.1853
2017-01-25 2016-12-31 13F CORNING COM 219350105 20,415 -3,000 -12.81 495 -10.65 0.1707
2016-10-27 2016-09-30 13F CORNING COM 219350105 23,415 2,165 10.19 554 27.36 0.1904
2016-08-15 2016-06-30 13F CORNING COM 219350105 21,250 1,140 5.67 435 3.57 0.1476
2016-04-21 2016-03-31 13F CORNING COM 219350105 20,110 10,000 98.91 420 127.03 0.1517
2016-02-01 2015-12-31 13F CORNING COM 219350105 10,110 10,110 0.00 185 0.0674
2015-10-29 2015-09-30 13F CORNING INC COM COM 219350105 0 -12,380 -100.00 0 -100.00
2015-07-20 2015-06-30 13F CORNING INC COM COM 219350105 12,380 12,380 244 0.0789
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.