Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionDnB Asset Management AS
Latest Disclosed Ownership241,658 shares
Latest Disclosed Value $ 32,858,238
DnB Asset Management AS reports 8.04% increase in ownership of GLW / Corning Incorporated

On May 14, 2026 - DnB Asset Management AS filed a 13F-HR form disclosing ownership of 241,658 shares of Corning Incorporated (MX:GLW) valued at $32,858,238 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 223,672 shares of Corning Incorporated. This represents a change in shares of 8.04% 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)
2026-05-14 2026-03-31 13F Corning COM 219350105 241,658 17,986 8.04 32,858 67.78 0.1172
2026-02-05 2025-12-31 13F Corning COM 219350105 223,672 53,982 31.81 19,585 40.70 0.0683
2025-11-12 2025-09-30 13F Corning COM 219350105 169,690 4,165 2.52 13,920 59.91 0.0520
2025-08-12 2025-06-30 13F Corning COM 219350105 165,525 4,815 3.00 8,705 18.31 0.0361
2025-05-15 2025-03-31 13F Corning COM 219350105 160,710 -1,090,800 -87.16 7,357 -87.63 0.0339
2025-02-12 2024-12-31 13F Corning COM 219350105 1,251,510 168,941 15.61 59,472 21.67 0.2573
2024-11-12 2024-09-30 13F Corning COM 219350105 1,082,569 930,354 611.21 48,878 726.60 0.2207
2024-07-05 2024-06-30 13F Corning common 219350105 152,215 14,113 10.22 5,914 29.93 0.0282
2024-04-12 2024-03-31 13F Corning common 219350105 138,102 -11,939 -7.96 4,552 -0.37 0.0237
2024-01-04 2023-12-31 13F Corning common 219350105 150,041 -2,062 -1.36 4,569 -1.42 0.0237
2023-10-13 2023-09-30 13F Corning common 219350105 152,103 -414 -0.27 4,635 -13.29 0.0277
2023-07-10 2023-06-30 13F/A-1 Corning common 219350105 152,517 -131 -0.09 5,344 -0.76 0.0307
2023-07-06 2023-06-30 13F Corning common 219350105 152,517 -131 5,344 0.0314
2023-04-20 2023-03-31 13F Corning common 219350105 152,648 16,064 11.76 5,385 23.45 0.0341
2023-01-12 2022-12-31 13F Corning common 219350105 136,584 12,052 9.68 4,362 20.73 0.0308
2022-10-11 2022-09-30 13F Corning common 219350105 124,532 1,094 0.89 3,614 -7.10 0.0279
2022-07-08 2022-06-30 13F Corning common 219350105 123,438 2,543 2.10 3,890 -12.84 0.0273
2022-04-08 2022-03-31 13F Corning common 219350105 120,895 10,060 9.08 4,462 8.14 0.0265
2022-01-12 2021-12-31 13F Corning common 219350105 110,835 -5,659 -4.86 4,126 -2.92 0.0242
2021-10-15 2021-09-30 13F Corning common 219350105 116,494 -72,340 -38.31 4,251 -44.97 0.0276
2021-07-06 2021-06-30 13F Corning common 219350105 188,834 40,874 27.63 7,723 19.98 0.0512
2021-04-15 2021-03-31 13F Corning common 219350105 147,960 51,063 52.70 6,438 84.55 0.0470
2021-01-19 2020-12-31 13F Corning common 219350105 96,897 7,844 8.81 3,488 20.86 0.0306
2020-10-14 2020-09-30 13F Corning common 219350105 89,053 6,342 7.67 2,886 34.73 0.0307
2020-07-08 2020-06-30 13F Corning common 219350105 82,711 -810 -0.97 2,142 24.90 0.0252
2020-04-17 2020-03-31 13F Corning common 219350105 83,521 -10,222 -10.90 1,716 -37.13 0.0252
2020-01-13 2019-12-31 13F Corning common 219350105 93,743 9,720 11.57 2,729 13.86 0.0268
2019-10-16 2019-09-30 13F Corning common 219350105 84,023 -405 -0.48 2,396 -14.58 0.0270
2019-07-08 2019-06-30 13F Corning common 219350105 84,428 -4,882 -5.47 2,806 -5.11 0.0323
2019-04-11 2019-03-31 13F Corning common 219350105 89,310 -10,351 -10.39 2,956 -1.79 0.0337
2019-01-15 2018-12-31 13F Corning common 219350105 99,661 -9,692 -8.86 3,011 -22.02 0.0390
2018-10-10 2018-09-30 13F Corning common 219350105 109,353 -42 -0.04 3,860 28.28 0.0434
2018-07-06 2018-06-30 13F Corning common 219350105 109,395 4,300 4.09 3,009 2.70 0.0355
2018-04-11 2018-03-31 13F Corning common 219350105 105,095 7,600 7.80 2,930 -6.03 0.0353
2018-01-10 2017-12-31 13F Corning common 219350105 97,495 -7,300 -6.97 3,119 -0.54 0.0376
2017-10-11 2017-09-30 13F Corning common 219350105 104,795 -3,400 -3.14 3,135 -3.57 0.0417
2017-07-06 2017-06-30 13F Corning common 219350105 108,195 -2,800 -2.52 3,251 8.51 0.0474
2017-04-19 2017-03-31 13F Corning common 219350105 110,995 10,600 10.56 2,997 22.99 0.0471
2017-01-17 2016-12-31 13F Corning common 219350105 100,395 4,700 4.91 2,437 7.64 0.0447
2016-10-28 2016-09-30 13F Corning common 219350105 95,695 0 0.00 2,263 15.52 0.0445
2016-07-08 2016-06-30 13F Corning common 219350105 95,695 1,800 1.92 1,960 -0.10 0.0415
2016-04-11 2016-03-31 13F Corning common 219350105 93,895 19,300 25.87 1,961 43.87 0.0410
2016-01-20 2015-12-31 13F Corning common 219350105 74,595 -2,300 -2.99 1,364 3.57 0.0292
2015-10-21 2015-09-30 13F Corning common 219350105 76,895 -7,800 -9.21 1,316 -21.24 0.0329
2015-07-07 2015-06-30 13F Corning common 219350105 84,695 3,000 3.67 1,671 -9.77 0.0368
2015-05-18 2015-03-31 13F Corning common 219350105 81,695 600 0.74 1,853 -0.38 0.0412
2015-05-19 2014-12-31 13F Corning common 219350105 81,095 11,600 16.69 1,860 38.32 0.0421
2015-02-17 2014-09-30 13F Corning common 219350105 69,495 0 0.00 1,344 -11.87 0.0296
2014-07-07 2014-06-30 13F Corning common 219350105 69,495 -99,200 -58.80 1,525 -49.27 0.0323
2014-01-27 2013-12-31 13F Corning common 219350105 168,695 -3,856,319 -95.81 3,006 -94.88 0.0706
2013-10-17 2013-09-30 13F Corning common 219350105 4,025,014 3,946,190 5,006.33 58,725 5,138.54 1.6079
2013-07-31 2013-06-30 13F Corning common 219350105 78,824 78,824 1,122 0.0332
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.