Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionHosking Partners LLP
Latest Disclosed Ownership340,197 shares
Latest Disclosed Value $ 46,256,586
Hosking Partners LLP reports 24.49% decrease in ownership of GLW / Corning Incorporated

On April 21, 2026 - Hosking Partners LLP filed a 13F-HR form disclosing ownership of 340,197 shares of Corning Incorporated (MX:GLW) valued at $46,256,586 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 450,536 shares of Corning Incorporated. This represents a change in shares of -24.49% 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 Common Stocks 219350105 340,197 -110,339 -24.49 46,257 17.26 1.6567
2026-02-04 2025-12-31 13F Corning Common Stocks 219350105 450,536 5,296 1.19 39,449 8.01 1.3401
2025-10-23 2025-09-30 13F Corning Common Stocks 219350105 445,240 -5,776 -1.28 36,523 53.99 1.3218
2025-08-07 2025-06-30 13F Corning Common Stocks 219350105 451,016 -7,242 -1.58 23,719 13.06 0.9450
2025-05-12 2025-03-31 13F Corning Common Stocks 219350105 458,258 -4,343 -0.94 20,979 -4.56 0.8857
2025-02-05 2024-12-31 13F Corning Common Stocks 219350105 462,601 -72,069 -13.48 21,983 -8.94 0.8598
2024-11-13 2024-09-30 13F Corning COM 219350105 534,670 -25,961 -4.63 24,140 10.84 0.9309
2024-07-29 2024-06-30 13F Corning COM 219350105 560,631 -66,652 -10.63 21,781 5.34 0.8062
2024-05-02 2024-03-31 13F Corning COM 219350105 627,283 -1,929 -0.31 20,675 7.91 0.7626
2024-02-13 2023-12-31 13F Corning COM 219350105 629,212 -45,312 -6.72 19,160 -6.78 0.8087
2023-11-08 2023-09-30 13F Corning COM 219350105 674,524 55,326 8.94 20,553 -5.27 0.9102
2023-08-02 2023-06-30 13F Corning COM 219350105 619,198 45,935 8.01 21,697 7.28 0.9167
2023-05-09 2023-03-31 13F Corning COM 219350105 573,263 -66,537 -10.40 20,225 -1.03 0.9377
2023-02-13 2022-12-31 13F Corning COM 219350105 639,800 114,576 21.81 20,435 34.07 0.8271
2022-11-14 2022-09-30 13F Corning COM 219350105 525,224 -34,997 -6.25 15,242 -13.66 0.6648
2022-08-04 2022-06-30 13F Corning COM 219350105 560,221 208,745 59.39 17,653 36.07 0.6967
2022-05-05 2022-03-31 13F Corning COM 219350105 351,476 -7,615 -2.12 12,973 -2.96 0.3352
2022-02-04 2021-12-31 13F Corning COM 219350105 359,091 -6,836 -1.87 13,369 0.12 0.3229
2021-11-09 2021-09-30 13F Corning COM 219350105 365,927 -40,067 -9.87 13,353 -19.58 0.3307
2021-08-03 2021-06-30 13F Corning COM 219350105 405,994 267,575 193.31 16,605 175.69 0.3683
2021-05-10 2021-03-31 13F Corning COM 219350105 138,419 -5,259 -3.66 6,023 16.45 0.1419
2021-02-05 2020-12-31 13F Corning COM 219350105 143,678 -4,566 -3.08 5,172 7.64 0.1335
2020-11-09 2020-09-30 13F Corning COM 219350105 148,244 -4,938 -3.22 4,805 21.12 0.1477
2020-08-05 2020-06-30 13F Corning COM 219350105 153,182 -10,828 -6.60 3,967 17.75 0.1221
2020-05-15 2020-03-31 13F Corning COM 219350105 164,010 -5,174 -3.06 3,369 -31.59 0.1177
2020-02-06 2019-12-31 13F Corning COM 219350105 169,184 -6,103 -3.48 4,925 -1.48 0.1196
2019-11-13 2019-09-30 13F Corning COM 219350105 175,287 -8,545 -4.65 4,999 -18.17 0.1296
2019-08-13 2019-06-30 13F Corning COM 219350105 183,832 -1,443 -0.78 6,109 -0.39 0.1490
2019-05-08 2019-03-31 13F Corning COM 219350105 185,275 -945 -0.51 6,133 9.01 0.1552
2019-02-11 2018-12-31 13F Corning COM 219350105 186,220 18,918 11.31 5,626 -4.74 0.1599
2018-11-13 2018-09-30 13F CORNING COM 219350105 167,302 -5,241 -3.04 5,906 24.42 0.1302
2018-08-13 2018-06-30 13F CORNING COM 219350105 172,543 1,171 0.68 4,747 -0.65 0.1047
2018-05-10 2018-03-31 13F CORNING COM 219350105 171,372 7,826 4.79 4,778 -8.68 0.1058
2018-02-08 2017-12-31 13F CORNING COM 219350105 163,546 11,806 7.78 5,232 15.24 0.1196
2017-11-09 2017-09-30 13F CORNING COM 219350105 151,740 664 0.44 4,540 0.00 0.1182
2017-08-09 2017-06-30 13F CORNING COM 219350105 151,076 2,440 1.64 4,540 13.13 0.1199
2017-05-09 2017-03-31 13F CORNING COM 219350105 148,636 13,353 9.87 4,013 22.24 0.1114
2017-02-02 2016-12-31 13F CORNING COM 219350105 135,283 -3,493 -2.52 3,283 0.03 0.1052
2016-11-03 2016-09-30 13F CORNING COM 219350105 138,776 138,776 3,282 0.1100
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.