Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionStifel Financial Corp
Latest Disclosed Ownership2,672,986 shares
Latest Disclosed Value $ 363,450,900
Stifel Financial Corp reports 9.38% decrease in ownership of GLW / Corning Incorporated

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 2,672,986 shares of Corning Incorporated (MX:GLW) valued at $363,450,900 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,949,686 shares of Corning Incorporated. This represents a change in shares of -9.38% 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)
2026-05-12 2026-03-31 13F CORNING COM 219350105 2,672,986 -276,700 -9.38 363,451 40.72 0.0784
2026-02-13 2025-12-31 13F CORNING COM 219350105 2,949,686 -356,422 -10.78 258,277 -4.77 0.2323
2025-11-12 2025-09-30 13F CORNING COM 219350105 3,306,108 -127,191 -3.70 271,202 50.20 0.2476
2025-08-14 2025-06-30 13F CORNING COM 219350105 3,433,299 145,786 4.43 180,558 19.97 0.1756
2025-05-14 2025-03-31 13F CORNING COM 219350105 3,287,513 -6,143 -0.19 150,503 -3.84 0.1600
2025-02-13 2024-12-31 13F CORNING COM 219350105 3,293,656 483,221 17.19 156,516 23.35 0.1630
2024-11-14 2024-09-30 13F CORNING COM 219350105 2,810,435 52,667 1.91 126,893 18.44 0.1331
2024-08-13 2024-06-30 13F CORNING COM 219350105 2,757,768 60,915 2.26 107,140 20.53 0.1206
2024-05-14 2024-03-31 13F CORNING COM 219350105 2,696,853 428,177 18.87 88,889 28.67 0.1013
2024-02-12 2023-12-31 13F CORNING COM 219350105 2,268,676 -90,058 -3.82 69,081 -3.88 0.0869
2023-11-13 2023-09-30 13F CORNING COM 219350105 2,358,734 133,122 5.98 71,871 -7.84 0.1010
2023-08-14 2023-06-30 13F CORNING COM 219350105 2,225,612 264,465 13.49 77,986 12.71 0.1067
2023-05-12 2023-03-31 13F CORNING COM 219350105 1,961,147 257,811 15.14 69,189 27.18 0.0992
2023-02-13 2022-12-31 13F CORNING COM 219350105 1,703,336 940,041 123.16 54,405 145.61 0.0817
2022-11-14 2022-09-30 13F CORNING COM 219350105 763,295 21,939 2.96 22,151 -5.18 0.0363
2022-08-15 2022-06-30 13F CORNING COM 219350105 741,356 87,431 13.37 23,361 -3.21 0.0366
2022-05-13 2022-03-31 13F CORNING COM 219350105 653,925 395 0.06 24,136 -0.81 0.0329
2022-02-14 2021-12-31 13F CORNING COM 219350105 653,530 -114,415 -14.90 24,332 -13.17 0.0322
2021-11-15 2021-09-30 13F CORNING COM 219350105 767,945 -663 -0.09 28,022 -10.86 0.0411
2021-08-13 2021-06-30 13F CORNING COM 219350105 768,608 68,442 9.78 31,435 3.19 0.0470
2021-05-14 2021-03-31 13F CORNING COM 219350105 700,166 -49,505 -6.60 30,464 12.88 0.0502
2021-02-12 2020-12-31 13F CORNING COM 219350105 749,671 -13,448 -1.76 26,988 9.12 0.0482
2020-11-16 2020-09-30 13F CORNING COM 219350105 763,119 -31,135 -3.92 24,733 20.23 0.0509
2020-08-14 2020-06-30 13F CORNING COM 219350105 794,254 -283,134 -26.28 20,571 -7.10 0.0473
2020-05-14 2020-03-31 13F CORNING COM 219350105 1,077,388 -465,252 -30.16 22,143 -50.69 0.0612
2020-02-13 2019-12-31 13F CORNING COM 219350105 1,542,640 865,500 127.82 44,906 132.29 0.0936
2019-11-19 2019-09-30 13F/A-1 CORNING COM 219350105 677,140 78,917 13.19 19,332 -2.69 0.0493
2019-11-13 2019-09-30 13F CORNING COM 219350105 678,093 79,870 19,359 10,851.6898
2019-08-14 2019-06-30 13F CORNING COM 219350105 598,223 64,661 12.12 19,866 12.50 0.0512
2019-05-14 2019-03-31 13F CORNING COM 219350105 533,562 -32,070 -5.67 17,658 3.40 0.0499
2019-02-13 2018-12-31 13F CORNING COM 219350105 565,632 20,589 3.78 17,077 -11.48 0.0552
2018-11-13 2018-09-30 13F CORNING COM 219350105 545,043 -110,404 -16.84 19,292 6.74 0.0553
2018-08-14 2018-06-30 13F CORNING COM 219350105 655,447 -95,921 -12.77 18,074 -13.86 0.0555
2018-05-11 2018-03-31 13F CORNING COM 219350105 751,368 -23,780 -3.07 20,983 -15.30 0.0662
2018-02-14 2017-12-31 13F CORNING COM 219350105 775,148 31,295 4.21 24,773 11.34 0.0785
2017-11-13 2017-09-30 13F CORNING COM 219350105 743,853 36,622 5.18 22,249 4.60 0.0772
2017-08-14 2017-06-30 13F CORNING COM 219350105 707,231 34,148 5.07 21,270 17.00 0.0790
2017-05-10 2017-03-31 13F CORNING COM 219350105 673,083 -111,908 -14.26 18,180 -4.32 0.0704
2017-02-16 2016-12-31 13F CORNING COM 219350105 784,991 -96,405 -10.94 19,001 -8.85 0.0807
2016-11-15 2016-09-30 13F CORNING COM 219350105 881,396 -48,579 -5.22 20,847 9.46 0.0938
2016-08-17 2016-06-30 13F CORNING COM 219350105 929,975 -25,659 -2.69 19,046 -4.57 0.0881
2016-05-16 2016-03-31 13F CORNING COM 219350105 955,634 -34,641 -3.50 19,959 10.28 0.1064
2016-03-21 2015-12-31 13F/A-2 CORNING COM 219350105 990,275 -833 -0.08 18,099 6.67 0.0942
2016-02-26 2015-12-31 13F/A-1 CORNING COM 219350105 1,000,188 9,913 17,598 0.0920
2016-02-16 2015-12-31 13F CORNING COM 219350105 1,000,188 17,340
2015-11-16 2015-09-30 13F CORNING COM 219350105 991,108 -62,743 -5.95 16,967 -17.63 0.0953
2015-08-17 2015-06-30 13F/A-1 CORNING COM 219350105 1,053,851 312,008 42.06 20,599 22.44 0.1065
2015-08-17 2015-06-30 13F CORNING COM 219350105 790,298 15,584
2015-05-14 2015-03-31 13F CORNING COM 219350105 741,843 -825,905 -52.68 16,824 -53.20 0.0921
2015-02-13 2014-12-31 13F CORNING COM 219350105 1,567,748 323,759 26.03 35,947 49.42 0.1997
2014-11-13 2014-09-30 13F CORNING COM 219350105 1,243,989 -26,831 -2.11 24,058 -13.75 0.2112
2014-08-14 2014-06-30 13F CORNING COM 219350105 1,270,820 -60,514 -4.55 27,894 0.63 0.2505
2014-05-15 2014-03-31 13F CORNING COM 219350105 1,331,334 1,331,334 27,718 0.2652
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.