Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionPinnacle Associates Ltd
Latest Disclosed Ownership271,440 shares
Latest Disclosed Value $ 36,907,722
Pinnacle Associates Ltd reports 6.12% decrease in ownership of GLW / Corning Incorporated

On April 21, 2026 - Pinnacle Associates Ltd filed a 13F-HR form disclosing ownership of 271,440 shares of Corning Incorporated (MX:GLW) valued at $36,907,722 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 289,139 shares of Corning Incorporated. This represents a change in shares of -6.12% 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)
2026-04-21 2026-03-31 13F CORNING COM 219350105 271,440 -17,699 -6.12 36,908 45.78 0.4731
2026-02-05 2025-12-31 13F CORNING COM 219350105 289,139 -8,510 -2.86 25,317 3.69 0.3248
2025-11-13 2025-09-30 13F CORNING COM 219350105 297,649 -6,155 -2.03 24,416 52.82 0.3240
2025-08-04 2025-06-30 13F CORNING COM 219350105 303,804 -906 -0.30 15,977 14.54 0.2313
2025-05-06 2025-03-31 13F CORNING COM 219350105 304,710 -4,324 -1.40 13,950 -5.01 0.2044
2025-02-14 2024-12-31 13F CORNING COM 219350105 309,034 203 0.07 14,685 56.17 0.1992
2024-10-25 2024-09-30 13F CORNING COM 219350105 308,831 -7,413 -2.34 9,404 -23.47 0.1599
2024-07-30 2024-06-30 13F CORNING COM 219350105 316,244 4,282 1.37 12,286 19.49 0.1924
2024-04-26 2024-03-31 13F CORNING COM 219350105 311,962 3,131 1.01 10,282 9.35 0.1621
2024-01-19 2023-12-31 13F CORNING COM 219350105 308,831 -571 -0.18 9,404 -0.25 0.1582
2023-10-24 2023-09-30 13F CORNING COM 219350105 309,402 335 0.11 9,427 -12.95 0.1752
2023-07-27 2023-06-30 13F CORNING COM 219350105 309,067 -3,158 -1.01 10,830 -1.69 0.1879
2023-05-05 2023-03-31 13F CORNING COM 219350105 312,225 -2,092 -0.67 11,015 9.72 0.2253
2023-02-01 2022-12-31 13F/A-1 CORNING COM 219350105 314,317 -1,958 -0.62 10,039 9.38 0.2188
2023-01-25 2022-12-31 13F CORNING COM 219350105 310,994 -5,281 10,611 0.0002
2022-11-01 2022-09-30 13F CORNING COM 219350105 316,275 -4,413 -1.38 9,178 -9.17 0.2107
2022-08-02 2022-06-30 13F CORNING COM 219350105 320,688 -2,812 -0.87 10,105 -15.37 0.2203
2022-05-05 2022-03-31 13F CORNING COM 219350105 323,500 -3,730 -1.14 11,940 -1.99 0.2113
2022-02-02 2021-12-31 13F CORNING COM 219350105 327,230 -11,641 -3.44 12,183 -1.47 0.2102
2021-10-19 2021-09-30 13F CORNING COM 219350105 338,871 28,659 9.24 12,365 -2.55 0.2279
2021-08-02 2021-06-30 13F CORNING COM 219350105 310,212 -278 -0.09 12,688 -6.08 0.2294
2021-05-12 2021-03-31 13F CORNING COM 219350105 310,490 -2,452 -0.78 13,509 19.91 0.2576
2021-01-26 2020-12-31 13F CORNING COM 219350105 312,942 -4,907 -1.54 11,266 9.37 0.2288
2020-10-23 2020-09-30 13F CORNING COM 219350105 317,849 -3,865 -1.20 10,301 23.63 0.2447
2020-08-14 2020-06-30 13F CORNING COM 219350105 321,714 627 0.20 8,332 26.34 0.2055
2020-05-13 2020-03-31 13F CORNING COM 219350105 321,087 -2,271 -0.70 6,595 -29.94 0.2003
2020-02-03 2019-12-31 13F CORNING COM 219350105 323,358 -36,765 -10.21 9,413 -8.35 0.2061
2019-11-08 2019-09-30 13F CORNING COM 219350105 360,123 -2,108 -0.58 10,271 -14.67 0.2419
2019-08-05 2019-06-30 13F CORNING COM 219350105 362,231 -7,549 -2.04 12,037 -1.66 0.2818
2019-05-10 2019-03-31 13F CORNING COM 219350105 369,780 -4,763 -1.27 12,240 8.17 0.2765
2019-02-05 2018-12-31 13F CORNING COM 219350105 374,543 -28,961 -7.18 11,315 -20.56 0.2921
2018-11-09 2018-09-30 13F CORNING COM 219350105 403,504 -4,634 -1.14 14,244 26.86 0.2955
2018-08-08 2018-06-30 13F CORNING COM 219350105 408,138 -9,956 -2.38 11,228 -3.67 0.2310
2018-05-11 2018-03-31 13F CORNING COM 219350105 418,094 -28,498 -6.38 11,656 -18.41 0.2284
2018-02-12 2017-12-31 13F CORNING COM 219350105 446,592 -10,812 -2.36 14,286 4.38 0.2745
2017-11-13 2017-09-30 13F CORNING COM 219350105 457,404 -12,911 -2.75 13,686 -3.16 0.2523
2017-08-09 2017-06-30 13F CORNING COM 219350105 470,315 -30,879 -6.16 14,133 4.44 0.2716
2017-05-09 2017-03-31 13F CORNING COM 219350105 501,194 -17,922 -3.45 13,532 7.41 0.2584
2017-02-10 2016-12-31 13F CORNING COM 219350105 519,116 -47,096 -8.32 12,599 -5.91 0.2542
2016-11-14 2016-09-30 13F CORNING COM 219350105 566,212 -25,783 -4.36 13,391 10.45 0.2686
2016-08-15 2016-06-30 13F CORNING COM 219350105 591,995 -24,090 -3.91 12,124 -5.80 0.2613
2016-05-13 2016-03-31 13F CORNING COM 219350105 616,085 -2,345 -0.38 12,870 13.84 0.2753
2016-02-11 2015-12-31 13F/A-1 CORNING COM 219350105 618,430 -5,059 -0.81 11,305 5.91 0.2372
2016-02-09 2015-12-31 13F CORNING COM 219350105 618,430 -5,059 11,305 0.2416
2015-11-10 2015-09-30 13F CORNING COM 219350105 623,489 4,858 0.79 10,674 -12.55 0.2362
2015-08-12 2015-06-30 13F CORNING COM 219350105 618,631 -1,370 -0.22 12,206 -13.20 0.2266
2015-05-15 2015-03-31 13F Corning COM 219350105 620,001 -39,302 -5.96 14,062 -6.99 0.2624
2015-02-12 2014-12-31 13F Corning COM 219350105 659,303 10,967 1.69 15,118 20.57 0.2964
2014-11-12 2014-09-30 13F Corning COM 219350105 648,336 -44,338 -6.40 12,539 -17.53 0.2553
2014-08-14 2014-06-30 13F Corning COM 219350105 692,674 -48,699 -6.57 15,204 -1.50 0.2968
2014-05-14 2014-03-31 13F Corning COM 219350105 741,373 -34,987 -4.51 15,435 11.56 0.3010
2014-02-12 2013-12-31 13F Corning COM 219350105 776,360 -11,871 -1.51 13,835 20.30 0.2701
2013-11-14 2013-09-30 13F Corning COM 219350105 788,231 -6,248 -0.79 11,500 1.72 0.2379
2013-08-13 2013-06-30 13F Corning COM 219350105 794,479 794,479 11,305 0.2541
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.