Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionAncora Advisors, LLC
Latest Disclosed Ownership21,586 shares
Latest Disclosed Value $ 2,935,002
Ancora Advisors, LLC reports 35.27% increase in ownership of GLW / Corning Incorporated

On May 15, 2026 - Ancora Advisors, LLC filed a 13F-HR form disclosing ownership of 21,586 shares of Corning Incorporated (MX:GLW) valued at $2,935,002 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,958 shares of Corning Incorporated. This represents a change in shares of 35.27% 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)
2026-05-15 2026-03-31 13F CORNING COM 219350105 21,586 5,628 35.27 2,935 110.09 0.0624
2026-02-17 2025-12-31 13F CORNING COM 219350105 15,958 -198 -1.23 1,397 5.43 0.0288
2025-11-14 2025-09-30 13F CORNING COM 219350105 16,156 3,999 32.89 1,325 107.36 0.0265
2025-08-14 2025-06-30 13F CORNING COM 219350105 12,157 2,497 25.85 639 44.57 0.0133
2025-05-15 2025-03-31 13F CORNING COM 219350105 9,660 -850 -8.09 442 -11.42 0.0099
2025-02-14 2024-12-31 13F CORNING COM 219350105 10,510 -300 -2.78 499 2.25 0.0111
2024-11-14 2024-09-30 13F CORNING COM 219350105 10,810 -336 -3.01 488 12.70 0.0111
2024-08-14 2024-06-30 13F CORNING COM 219350105 11,146 -600 -5.11 433 11.89 0.0107
2024-05-16 2024-03-31 13F CORNING COM 219350105 11,746 -1,444 -10.95 387 -3.49 0.0088
2024-02-14 2023-12-31 13F CORNING COM 219350105 13,190 84 0.64 402 0.50 0.0094
2023-11-14 2023-09-30 13F CORNING COM 219350105 13,106 833 6.79 399 -7.21 0.0106
2023-08-14 2023-06-30 13F CORNING COM 219350105 12,273 -6,345 -34.08 430 -34.45 0.0113
2023-05-16 2023-03-31 13F CORNING COM 219350105 18,618 -635 -3.30 657 6.67 0.0186
2023-02-14 2022-12-31 13F CORNING COM 219350105 19,253 -1,500 -7.23 615 2.16 0.0177
2022-11-14 2022-09-30 13F CORNING COM 219350105 20,753 -523 -2.46 602 -10.15 0.0186
2022-08-15 2022-06-30 13F CORNING COM 219350105 21,276 -78 -0.37 670 -15.08 0.0189
2022-05-16 2022-03-31 13F/A-1 CORNING COM 219350105 21,354 -1,750 -7.57 789 -8.26 0.0192
2022-05-13 2022-03-31 13F CORNING COM 219350105 23,204 100 1,010 0.0174
2022-02-14 2021-12-31 13F CORNING COM 219350105 23,104 0 0.00 860 2.02 0.0204
2021-11-15 2021-09-30 13F CORNING COM 219350105 23,104 -100 -0.43 843 -11.17 0.0218
2021-11-12 2021-06-30 13F/A-1 CORNING COM 219350105 23,204 0 0.00 949 -6.04 0.0248
2021-08-13 2021-06-30 13F CORNING COM 219350105 23,204 0 949 0.0248
2021-11-12 2021-03-31 13F/A-1 CORNING COM 219350105 23,204 -7,150 -23.56 1,010 -7.51 0.0279
2021-05-14 2021-03-31 13F CORNING COM 219350105 23,204 -7,150 1,010 0.0279
2021-11-12 2020-12-31 13F/A-1 CORNING COM 219350105 30,354 0 0.00 1,092 11.09 0.0352
2021-02-12 2020-12-31 13F CORNING COM 219350105 30,354 0 1,092 0.0352
2021-11-12 2020-09-30 13F/A-1 CORNING COM 219350105 30,354 -500 -1.62 983 23.03 0.0390
2020-11-13 2020-09-30 13F CORNING COM 219350105 30,354 -500 983 0.0390
2021-11-12 2020-06-30 13F/A-1 CORNING COM 219350105 30,854 -1,191 -3.72 799 21.43 0.0334
2020-08-14 2020-06-30 13F CORNING COM 219350105 30,854 -1,191 799 0.0334
2021-11-12 2020-03-31 13F/A-1 CORNING COM 219350105 32,045 125 0.39 658 -29.25 0.0304
2020-05-14 2020-03-31 13F CORNING COM 219350105 32,045 125 658 0.0304
2020-02-14 2019-12-31 13F CORNING COM 219350105 31,920 -1,250 -3.77 930 -1.69 0.0346
2019-11-19 2019-09-30 13F/A-2 CORNING COM 219350105 33,170 -107 -0.32 946 -14.47 0.0413
2019-11-18 2019-09-30 13F/A-1 CORNING COM 219350105 33,170 -107 946 0.0413
2019-11-14 2019-09-30 13F CORNING COM 219350105 33,170 -107 946 0.0415
2019-11-14 2019-06-30 13F/A-1 CORNING COM 219350105 33,277 821 2.53 1,106 2.98 0.0496
2019-08-12 2019-06-30 13F CORNING COM 219350105 33,277 821 1,106 45,682.5640
2019-11-14 2019-03-31 13F/A-1 CORNING COM 219350105 32,456 -6,090 -15.80 1,074 -7.73 0.0487
2019-05-15 2019-03-31 13F CORNING COM 219350105 32,456 -6,090 1,074 44,741.1450
2019-11-14 2018-12-31 13F/A-1 CORNING COM 219350105 38,546 -3,992 -9.38 1,164 -22.45 0.0560
2019-02-14 2018-12-31 13F CORNING COM 219350105 38,546 -3,992 1,164
2018-11-13 2018-09-30 13F CORNING COM 219350105 42,538 -7,859 -15.59 1,501 8.30 0.0578
2018-08-10 2018-06-30 13F CORNING COM 219350105 50,397 -161,987 -76.27 1,386 -76.59 0.0602
2018-05-15 2018-03-31 13F CORNING COM 219350105 212,384 -13,001 -5.77 5,921 -17.88 0.2664
2018-02-14 2017-12-31 13F CORNING COM 219350105 225,385 31,200 16.07 7,210 24.10 0.3847
2017-11-14 2017-09-30 13F CORNING COM 219350105 194,185 -9,682 -4.75 5,810 -5.16 0.3368
2017-08-14 2017-06-30 13F CORNING COM 219350105 203,867 -2,955 -1.43 6,126 9.71 0.3968
2017-05-15 2017-03-31 13F CORNING COM 219350105 206,822 -6,779 -3.17 5,584 7.72 0.3781
2017-02-14 2016-12-31 13F CORNING COM 219350105 213,601 23,518 12.37 5,184 15.33 0.3781
2016-11-14 2016-09-30 13F CORNING COM 219350105 190,083 1,809 0.96 4,495 16.57 0.4549
2016-08-11 2016-06-30 13F CORNING COM 219350105 188,274 1,986 1.07 3,856 -0.92 0.4485
2016-05-13 2016-03-31 13F CORNING COM 219350105 186,288 -1,890 -1.00 3,892 13.14 0.4781
2016-02-12 2015-12-31 13F/A CORNING COM 219350105 188,178 511 0.27 3,440 7.07 0.4400
2016-02-11 2015-12-31 13F CORNING COM 219350105 184,156 -3,511 4,223 0.5549
2015-10-30 2015-09-30 13F CORNING COM 219350105 187,667 -16,439 -8.05 3,213 -20.21 0.4136
2015-07-30 2015-06-30 13F CORNING COM 219350105 204,106 204,106 0.00 4,027 -3.96 0.4731
2015-05-15 2015-03-31 13F/A-1 CORNING INC COM COM 219350105 0 -184,856 -100.00 4,193 -1.09 0.5132
2015-05-15 2015-03-31 13F CORNING INC COM COM 219350105 0 4,193
2015-02-11 2014-12-31 13F/A-1 CORNING INC COM COM 219350105 184,856 -546 -0.29 4,239 18.21 0.5173
2015-02-11 2014-12-31 13F CORNING INC COM COM 219350105 184,856 -546 4,239 0.5173
2014-11-07 2014-09-30 13F CORNING INC COM COM 219350105 185,402 -25,200 -11.97 3,586 -22.43 0.4599
2014-07-31 2014-06-30 13F CORNING INC COM COM 219350105 210,602 -19,000 -8.28 4,623 -3.28 0.5990
2014-05-13 2014-03-31 13F CORNING INC COM COM 219350105 229,602 -17,850 -7.21 4,780 8.39 0.6756
2014-02-07 2013-12-31 13F CORNING INC COM COM 219350105 247,452 23,150 10.32 4,410 34.74 0.6657
2013-10-31 2013-09-30 13F/A-1 CORNING INC COM COM 219350105 224,302 1,100 0.49 3,273 3.05 0.5617
2013-10-25 2013-09-30 13F CORNING INC COM COM 219350105 224,302 3,273
2013-07-22 2013-06-30 13F CORNING INC COM COM 219350105 223,202 223,202 3,176 0.5444
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.