Corning Incorporated
US ˙ NYSE ˙ US2193501051

SecurityGLW / Corning Incorporated
InstitutionCwm, Llc
Latest Disclosed Ownership80,820 shares
Latest Disclosed Value $ 10,989,097
Cwm, Llc reports 4.37% increase in ownership of GLW / Corning Incorporated

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 80,820 shares of Corning Incorporated (US:GLW) valued at $10,989,095 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 77,438 shares of Corning Incorporated. This represents a change in shares of 4.37% during the quarter. The current value of the position is $16,225,423 USD.

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)
2026-05-14 2026-03-31 13F CORNING COM 219350105 80,820 3,382 4.37 10,989 183,050.00 0.0286
2026-01-26 2025-12-31 13F CORNING COM 219350105 77,438 5,610 7.81 7 20.00 0.0184
2025-10-15 2025-09-30 13F CORNING COM 219350105 71,828 6,593 10.11 6 66.67 0.0177
2025-07-25 2025-06-30 13F CORNING COM 219350105 65,235 35,223 117.36 3 200.00 0.0121
2025-05-01 2025-03-31 13F CORNING COM 219350105 30,012 4,578 18.00 1 0.00 0.0055
2025-02-04 2024-12-31 13F CORNING COM 219350105 25,434 -322 -1.25 1 0.00 0.0050
2024-10-08 2024-09-30 13F CORNING COM 219350105 25,756 3,929 18.00 1 0.0050
2024-07-10 2024-06-30 13F CORNING COM 219350105 21,827 -822 -3.63 1 0.0040
2024-04-05 2024-03-31 13F CORNING COM 219350105 22,649 2,359 11.63 1 0.0036
2024-02-01 2023-12-31 13F CORNING COM 219350105 20,290 -2,616 -11.42 1 0.0033
2023-10-11 2023-09-30 13F CORNING COM 219350105 22,906 778 3.52 1 0.0043
2023-08-03 2023-06-30 13F CORNING COM 219350105 22,128 -269 -1.20 1 0.0048
2023-05-01 2023-03-31 13F CORNING COM 219350105 22,397 6,377 39.81 1 0.0053
2023-02-01 2022-12-31 13F CORNING COM 219350105 16,020 -2,949 -15.55 1 -100.00 0.0038
2022-10-27 2022-09-30 13F CORNING COM 219350105 18,969 1,908 11.18 550 2.23 0.0044
2022-07-28 2022-06-30 13F CORNING COM 219350105 17,061 2,291 15.51 538 -1.28 0.0042
2022-04-21 2022-03-31 13F CORNING COM 219350105 14,770 1,580 11.98 545 11.00 0.0039
2022-01-31 2021-12-31 13F CORNING COM 219350105 13,190 1,063 8.77 491 -1.01 0.0035
2021-09-15 2021-06-30 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2021-07-29 2021-06-30 13F CORNING COM 219350105 12,127 0 496 0.0040
2021-09-15 2021-03-31 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2021-04-27 2021-03-31 13F CORNING COM 219350105 9,420 -2,707 410 0.0036
2021-09-15 2020-12-31 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2021-01-27 2020-12-31 13F CORNING COM 219350105 7,400 -4,727 266 0.0025
2021-09-15 2020-09-30 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2020-10-19 2020-09-30 13F CORNING COM 219350105 9,060 -3,067 294 0.0033
2021-09-15 2020-06-30 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2020-07-22 2020-06-30 13F CORNING COM 219350105 5,774 -6,353 150 0.0018
2021-09-15 2020-03-31 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2020-04-28 2020-03-31 13F CORNING COM 219350105 6,395 -5,732 131 0.0020
2021-09-14 2019-12-31 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2020-01-27 2019-12-31 13F CORNING COM 219350105 7,598 -4,529 221 0.0028
2021-09-14 2019-09-30 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2019-10-22 2019-09-30 13F CORNING COM 219350105 8,434 -3,693 241 0.0035
2021-09-14 2019-06-30 13F/A-1 CORNING COM 219350105 12,127 0 0.00 496 0.00 0.0040
2019-07-31 2019-06-30 13F CORNING COM 219350105 82,575 70,448 2,744 0.0454
2021-09-02 2019-03-31 13F/A-1 CORNING COM 219350105 12,127 -65,218 -84.32 496 -78.78 0.0040
2019-04-22 2019-03-31 13F CORNING COM 219350105 82,116 4,771 2,718 0.0545
2019-01-25 2018-12-31 13F CORNING COM 219350105 77,345 -8,977 -10.40 2,337 -23.30 0.0584
2018-10-29 2018-09-30 13F CORNING COM 219350105 86,322 32,810 61.31 3,047 107.00 0.0778
2018-07-31 2018-06-30 13F CORNING COM 219350105 53,512 -2,116 -3.80 1,472 -5.09 0.0484
2018-04-26 2018-03-31 13F CORNING COM 219350105 55,628 -4,374 -7.29 1,551 -19.18 0.0616
2018-01-16 2017-12-31 13F CORNING COM 219350105 60,002 -9,386 -13.53 1,919 -7.56 0.0852
2017-10-16 2017-09-30 13F CORNING COM 219350105 69,388 -7,131 -9.32 2,076 -9.70 0.0982
2017-07-17 2017-06-30 13F CORNING COM 219350105 76,519 -10,227 -11.79 2,299 -1.84 0.1178
2017-04-17 2017-03-31 13F CORNING COM 219350105 86,746 -29,401 -25.31 2,342 -16.92 0.1324
2017-01-19 2016-12-31 13F CORNING COM 219350105 116,147 -7,464 -6.04 2,819 -3.56 0.1728
2016-10-17 2016-09-30 13F CORNING COM 219350105 123,611 -10,827 -8.05 2,923 6.18 0.2018
2016-07-21 2016-06-30 13F CORNING COM 219350105 134,438 -7,255 -5.12 2,753 -6.99 0.2008
2016-04-18 2016-03-31 13F CORNING COM 219350105 141,693 -7,865 -5.26 2,960 8.27 0.2599
2016-02-01 2015-12-31 13F CORNING COM 219350105 149,558 -3,302 -2.16 2,734 4.47 0.2671
2015-10-30 2015-09-30 13F CORNING COM 219350105 152,860 -470,312 -75.47 2,617 -78.71 0.2635
2015-07-09 2015-06-30 13F CORNING COM 219350105 623,172 26,664 4.47 12,295 -9.12 1.1796
2015-04-30 2015-03-31 13F CORNING COM 219350105 596,508 -5,845 -0.97 13,529 -2.05 1.3700
2015-02-12 2014-12-31 13F CORNING COM 219350105 602,353 67,274 12.57 13,812 33.48 1.6763
2014-11-14 2014-09-30 13F CORNING COM 219350105 535,079 442,592 478.55 10,348 409.75 1.5025
2014-08-14 2014-06-30 13F CORNING COM 219350105 92,487 89,232 2,741.38 2,030 3,400.00 0.3632
2014-02-14 2013-12-31 13F CORNING COM 219350105 3,255 3,255 58 0.0090
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.