Corning Incorporated
US ˙ NYSE ˙ US2193501051

SecurityGLW / Corning Incorporated
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership932,196 shares
Latest Disclosed Value $ 126,750,644
Neuberger Berman Group LLC reports 51.33% decrease in ownership of GLW / Corning Incorporated

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 932,196 shares of Corning Incorporated (US:GLW) valued at $126,750,690 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,915,393 shares of Corning Incorporated. This represents a change in shares of -51.33% during the quarter. The current value of the position is $165,539,366 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 Common 219350105 932,196 -983,197 -51.33 126,751 -24.42 0.0965
2026-02-13 2025-12-31 13F CORNING Common 219350105 1,915,393 -195,983 -9.28 167,712 -3.17 0.1248
2025-11-12 2025-09-30 13F CORNING Common 219350105 2,111,376 38,633 1.86 173,196 58.89 0.1266
2025-08-25 2025-06-30 13F/A-1 CORNING Common 219350105 2,072,743 70,316 3.51 109,006 18.91 0.0839
2025-08-13 2025-06-30 13F CORNING Common 219350105 2,072,743 70,316 109,006 0.0434
2025-05-13 2025-03-31 13F CORNING Common 219350105 2,002,427 -131,259 -6.15 91,671 -9.59 0.0768
2025-02-13 2024-12-31 13F CORNING Common 219350105 2,133,686 -625,104 -22.66 101,393 -18.60 0.0805
2024-11-14 2024-09-30 13F CORNING Common 219350105 2,758,790 1,056,880 62.10 124,559 88.39 0.0972
2024-11-14 2024-06-30 13F/A-1 CORNING Common 219350105 1,701,910 -30,481 -1.76 66,119 15.80 0.0543
2024-08-13 2024-06-30 13F CORNING Common 219350105 1,701,910 -30,481 66,119 0.0543
2024-11-14 2024-03-31 13F/A-1 CORNING Common 219350105 1,732,391 2,856 0.17 57,100 8.42 0.0472
2024-05-13 2024-03-31 13F CORNING Common 219350105 1,732,391 2,856 57,100 0.0472
2024-11-14 2023-12-31 13F/A-2 CORNING Common 219350105 1,729,535 56,387 3.37 52,664 3.30 0.0459
2024-02-09 2023-12-31 13F CORNING Common 219350105 1,729,535 56,387 52,664 0.0459
2023-11-14 2023-09-30 13F CORNING Common 219350105 1,673,148 -660,091 -28.29 50,981 -37.64 0.0465
2023-08-11 2023-06-30 13F CORNING Common 219350105 2,333,239 -529,439 -18.49 81,757 -19.05 0.0731
2023-05-12 2023-03-31 13F CORNING Common 219350105 2,862,678 -69,033 -2.35 100,995 7.86 0.0937
2023-02-13 2022-12-31 13F CORNING Common 219350105 2,931,711 -112,440 -3.69 93,639 5.99 0.0918
2022-11-15 2022-09-30 13F CORNING Common 219350105 3,044,151 -1,291 -0.04 88,342 -7.94 0.0922
2022-08-15 2022-06-30 13F CORNING Common 219350105 3,045,442 -755,656 -19.88 95,961 -31.62 0.0964
2022-05-23 2022-03-31 13F/A-1 CORNING Common 219350105 3,801,098 -207,121 -5.17 140,327 -5.89 0.1189
2022-05-13 2022-03-31 13F CORNING Common 219350105 3,801,098 -207,121 140,152 0.0625
2022-02-11 2021-12-31 13F CORNING Common 219350105 4,008,219 280,869 7.54 149,105 9.72 0.1170
2021-11-12 2021-09-30 13F CORNING Common 219350105 3,727,350 -28,120 -0.75 135,891 -11.49 0.1188
2021-08-13 2021-06-30 13F CORNING Common 219350105 3,755,470 -14,789 -0.39 153,532 -6.37 0.1340
2021-05-13 2021-03-31 13F CORNING Common 219350105 3,770,259 815,913 27.62 163,974 54.22 0.1566
2021-02-10 2020-12-31 13F CORNING Common 219350105 2,954,346 189,706 6.86 106,325 18.69 0.1102
2020-11-12 2020-09-30 13F CORNING Common 219350105 2,764,640 178,046 6.88 89,581 33.74 0.1062
2020-08-13 2020-06-30 13F CORNING Common 219350105 2,586,594 943,677 57.44 66,980 98.49 0.0833
2020-05-14 2020-03-31 13F CORNING Common 219350105 1,642,917 -555,561 -25.27 33,744 -47.27 0.0514
2020-02-12 2019-12-31 13F CORNING Common 219350105 2,198,478 -1,352,891 -38.09 63,993 -36.82 0.0747
2019-11-13 2019-09-30 13F CORNING Common 219350105 3,551,369 -650,426 -15.48 101,285 -27.46 0.1237
2019-08-13 2019-06-30 13F CORNING Common 219350105 4,201,795 548,540 15.02 139,626 15.47 0.1670
2019-05-13 2019-03-31 13F CORNING Common 219350105 3,653,255 -303,796 -7.68 120,923 1.16 0.1482
2019-02-12 2018-12-31 13F CORNING Common 219350105 3,957,051 866,468 28.04 119,542 9.57 0.1666
2018-11-16 2018-09-30 13F/A-1 CORNING Common 219350105 3,090,583 -667,038 -17.75 109,098 5.46 0.1236
2018-11-13 2018-09-30 13F CORNING Common 219350105 3,090,583 -667,038 109,098
2018-08-13 2018-06-30 13F CORNING Common 219350105 3,757,621 458,025 13.88 103,451 12.37 0.1142
2018-05-08 2018-03-31 13F CORNING Common 219350105 3,299,596 243,629 7.97 92,062 -5.94 0.1052
2018-02-14 2017-12-31 13F CORNING Common 219350105 3,055,967 10,970 0.36 97,880 7.44 0.1125
2017-11-15 2017-09-30 13F CORNING COMMON STOCK 219350105 3,044,997 606,637 24.88 91,106 24.34 0.1140
2017-08-08 2017-06-30 13F CORNING COMMON STOCK 219350105 2,438,360 -121,020 -4.73 73,273 6.03 0.0941
2017-05-10 2017-03-31 13F CORNING COMMON STOCK 219350105 2,559,380 -181,880 -6.63 69,103 3.87 0.0892
2017-02-06 2016-12-31 13F CORNING COMMON STOCK 219350105 2,741,260 -36,290 -1.31 66,531 1.28 0.0894
2016-11-02 2016-09-30 13F CORNING COMMON STOCK 219350105 2,777,550 -53,188 -1.88 65,689 13.31 0.0891
2016-08-05 2016-06-30 13F CORNING COMMON STOCK 219350105 2,830,738 -919,867 -24.53 57,974 -26.01 0.0799
2016-05-06 2016-03-31 13F CORNING COMMON STOCK 219350105 3,750,605 -63,103 -1.65 78,350 12.39 0.1077
2016-01-28 2015-12-31 13F CORNING COMMON STOCK 219350105 3,813,708 1,021,103 36.56 69,714 45.81 0.0913
2015-11-10 2015-09-30 13F CORNING COMMON STOCK 219350105 2,792,605 255,166 10.06 47,810 -4.50 0.0616
2015-07-31 2015-06-30 13F CORNING COMMON STOCK 219350105 2,537,439 146,810 6.14 50,064 -7.67 0.0557
2015-05-06 2015-03-31 13F CORNING COMMON STOCK 219350105 2,390,629 2,390,629 0.00 54,220 0.0579
2015-02-05 2014-12-31 13F CORNING COMMON STOCK 219350105 0 -5,554,043 -100.00 0 -100.00
2014-11-04 2014-09-30 13F CORNING COMMON STOCK 219350105 5,554,043 -379,348 -6.39 107,414 -17.52 0.1102
2014-08-05 2014-06-30 13F CORNING COMMON STOCK 219350105 5,933,391 195,400 3.41 130,238 9.02 0.1272
2014-05-05 2014-03-31 13F CORNING COMMON STOCK 219350105 5,737,991 919,904 19.09 119,465 39.14 0.1215
2014-02-11 2013-12-31 13F CORNING COMMON STOCK 219350105 4,818,087 1,951,455 68.07 85,859 105.29 0.0883
2013-10-29 2013-09-30 13F/A-1 CORNING COMMON STOCK 219350105 2,866,632 71,188 2.55 41,824 5.14 0.0464
2013-10-29 2013-09-30 13F CORNING COMMON STOCK 219350105 5,293,136 74,528
2013-08-13 2013-06-30 13F CORNING COMMON STOCK 219350105 2,795,444 2,795,444 39,779 0.0473
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.