Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership438,810 shares
Latest Disclosed Value $ 59,665,195
Rockefeller Capital Management L.P. reports 5.02% increase in ownership of GLW / Corning Incorporated

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 438,810 shares of Corning Incorporated (MX:GLW) valued at $59,665,195 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 417,834 shares of Corning Incorporated. This represents a change in shares of 5.02% 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)
2026-05-14 2026-03-31 13F CORNING COM 219350105 438,810 20,976 5.02 59,665 63.09 0.1058
2026-03-16 2025-12-31 13F/A-1 CORNING COM 219350105 417,834 -14,109 -3.27 36,586 3.25 0.0659
2026-02-14 2025-12-31 13F CORNING COM 219350105 417,835 -14,108 36,588 0.0334
2025-11-14 2025-09-30 13F CORNING COM 219350105 431,943 17,272 4.17 35,432 62.48 0.0693
2025-08-14 2025-06-30 13F/A-1 CORNING COM 219350105 414,671 27,348 7.06 21,808 22.99 0.0478
2025-08-08 2025-06-30 13F CORNING COM 219350105 414,671 27,348 21,808 0.0275
2025-05-14 2025-03-31 13F CORNING COM 219350105 387,323 -10,328 -2.60 17,732 -6.13 0.0438
2025-02-13 2024-12-31 13F CORNING COM 219350105 397,651 -255,285 -39.10 18,889 -35.91 0.0489
2024-11-14 2024-09-30 13F CORNING COM 219350105 652,936 -2,366 -0.36 29,474 15.78 0.0793
2024-08-12 2024-06-30 13F CORNING COM 219350105 655,302 -41,999 -6.02 25,455 10.76 0.0724
2024-05-14 2024-03-31 13F CORNING COM 219350105 697,301 141,010 25.35 22,983 35.68 0.0671
2024-02-14 2023-12-31 13F CORNING COM 219350105 556,291 9,041 1.65 16,939 1.59 0.0566
2023-11-14 2023-09-30 13F CORNING COM 219350105 547,250 -14,184 -2.53 16,675 -15.24 0.0643
2023-08-14 2023-06-30 13F CORNING COM 219350105 561,434 24,505 4.56 19,673 109,188.89 0.0762
2023-05-16 2023-03-31 13F CORNING COM 219350105 536,929 15,063 2.89 19 -99.89 0.0815
2023-03-06 2022-12-31 13F CORNING COM 219350105 521,866 -7,878 -1.49 16,667 8.42 0.0838
2022-11-02 2022-09-30 13F CORNING COM 219350105 529,744 14,854 2.88 15,373 -5.24 0.0795
2022-08-12 2022-06-30 13F CORNING COM 219350105 514,890 -38,354 -6.93 16,223 -20.55 0.0862
2022-05-13 2022-03-31 13F CORNING COM 219350105 553,244 38,916 7.57 20,419 6.64 0.0985
2022-02-14 2021-12-31 13F CORNING COM 219350105 514,328 102,000 24.74 19,148 27.27 0.0894
2021-11-12 2021-09-30 13F CORNING COM 219350105 412,328 78,358 23.46 15,045 10.15 0.0791
2021-08-10 2021-06-30 13F CORNING COM 219350105 333,970 29,012 9.51 13,659 2.95 0.0769
2021-05-11 2021-03-31 13F CORNING COM 219350105 304,958 69,290 29.40 13,267 56.40 0.0898
2021-02-12 2020-12-31 13F CORNING COM 219350105 235,668 146,117 163.17 8,483 192.32 0.0642
2020-11-13 2020-09-30 13F CORNING COM 219350105 89,551 -9,691 -9.77 2,902 12.87 0.0272
2020-08-12 2020-06-30 13F CORNING COM 219350105 99,242 41,031 70.49 2,571 114.97 0.0269
2020-05-12 2020-03-31 13F CORNING COM 219350105 58,211 22,744 64.13 1,196 15.89 0.0157
2020-02-07 2019-12-31 13F CORNING COM 219350105 35,467 5,553 18.56 1,032 20.98 0.0129
2019-11-12 2019-09-30 13F CORNING COM 219350105 29,914 6,730 29.03 853 10.78 0.0116
2019-08-09 2019-06-30 13F CORNING COM 219350105 23,184 -6,626 -22.23 770 -21.99 0.0107
2019-05-10 2019-03-31 13F CORNING COM 219350105 29,810 5,889 24.62 987 36.51 0.0141
2019-02-12 2018-12-31 13F CORNING COM 219350105 23,921 0 0.00 723 -14.34 0.0127
2018-11-02 2018-09-30 13F Corning Common 219350105 23,921 -330 -1.36 844 26.54 0.0128
2018-07-31 2018-06-30 13F Corning Common 219350105 24,251 802 3.42 667 1.99 0.0109
2018-05-09 2018-03-31 13F Corning Common 219350105 23,449 23,449 654 0.0108
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.