Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionArizona State Retirement System
Latest Disclosed Ownership223,156 shares
Latest Disclosed Value $ 30,342,521
Arizona State Retirement System reports 2.70% decrease in ownership of GLW / Corning Incorporated

On May 1, 2026 - Arizona State Retirement System filed a 13F-HR form disclosing ownership of 223,156 shares of Corning Incorporated (MX:GLW) valued at $30,342,521 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 229,348 shares of Corning Incorporated. This represents a change in shares of -2.70% 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)
2026-05-01 2026-03-31 13F CORNING COM 219350105 223,156 -6,192 -2.70 30,343 51.10 0.1774
2026-01-28 2025-12-31 13F CORNING COM 219350105 229,348 -8,266 -3.48 20,082 3.03 0.1092
2025-11-03 2025-09-30 13F CORNING COM 219350105 237,614 -335 -0.14 19,491 55.77 0.1039
2025-08-13 2025-06-30 13F CORNING COM 219350105 237,949 -809 -0.34 12,514 14.48 0.0721
2025-05-01 2025-03-31 13F CORNING COM 219350105 238,758 7,454 3.22 10,930 -0.55 0.0696
2025-02-06 2024-12-31 13F CORNING COM 219350105 231,304 -2,029 -0.87 10,992 4.34 0.0672
2024-11-12 2024-09-30 13F CORNING COM 219350105 233,333 -1,723 -0.73 10,535 15.37 0.0664
2024-08-05 2024-06-30 13F CORNING COM 219350105 235,056 2,464 1.06 9,132 19.11 0.0610
2024-05-07 2024-03-31 13F CORNING COM 219350105 232,592 4,609 2.02 7,666 10.43 0.0530
2024-01-24 2023-12-31 13F CORNING COM 219350105 227,983 -617 -0.27 6,942 -0.33 0.0527
2023-11-07 2023-09-30 13F CORNING COM 219350105 228,600 -1,469 -0.64 6,965 -13.60 0.0592
2023-08-01 2023-06-30 13F CORNING COM 219350105 230,069 10,674 4.87 8,062 4.15 0.0654
2023-04-27 2023-03-31 13F CORNING COM 219350105 219,395 586 0.27 7,740 10.76 0.0695
2023-02-08 2022-12-31 13F CORNING COM 219350105 218,809 701 0.32 6,989 10.41 0.0675
2022-11-07 2022-09-30 13F CORNING COM 219350105 218,108 -2,345 -1.06 6,329 -8.88 0.0655
2022-07-28 2022-06-30 13F CORNING COM 219350105 220,453 -2,013 -0.90 6,946 -15.41 0.0674
2022-05-04 2022-03-31 13F CORNING COM 219350105 222,466 259 0.12 8,211 -0.75 0.0661
2022-02-04 2021-12-31 13F CORNING COM 219350105 222,207 -3,333 -1.48 8,273 0.52 0.0630
2021-11-12 2021-09-30 13F CORNING COM 219350105 225,540 10,262 4.77 8,230 -6.53 0.0672
2021-08-02 2021-06-30 13F CORNING COM 219350105 215,278 -23 -0.01 8,805 -6.01 0.0716
2021-05-06 2021-03-31 13F CORNING COM 219350105 215,301 -4,252 -1.94 9,368 18.52 0.0818
2021-01-28 2020-12-31 13F CORNING COM 219350105 219,553 -11,868 -5.13 7,904 5.39 0.0717
2020-11-05 2020-09-30 13F CORNING COM 219350105 231,421 52,039 29.01 7,500 61.43 0.0746
2020-08-04 2020-06-30 13F CORNING COM 219350105 179,382 -88,364 -33.00 4,646 -15.53 0.0655
2020-05-05 2020-03-31 13F CORNING COM 219350105 267,746 8,141 3.14 5,500 -27.22 0.0945
2020-01-27 2019-12-31 13F CORNING COM 219350105 259,605 1,589 0.62 7,557 2.69 0.0910
2019-10-31 2019-09-30 13F CORNING COM 219350105 258,016 -10,382 -3.87 7,359 -17.49 0.0898
2019-07-25 2019-06-30 13F CORNING COM 219350105 268,398 16,271 6.45 8,919 6.88 0.1033
2019-04-29 2019-03-31 13F CORNING COM 219350105 252,127 -10,340 -3.94 8,345 5.25 0.0992
2019-01-28 2018-12-31 13F CORNING COM 219350105 262,467 -67,591 -20.48 7,929 -31.95 0.1020
2018-10-29 2018-09-30 13F CORNING COM 219350105 330,058 -8,886 -2.62 11,651 24.96 0.1099
2018-08-07 2018-06-30 13F CORNING COM 219350105 338,944 25,939 8.29 9,324 6.84 0.0938
2018-05-14 2018-03-31 13F CORNING COM 219350105 313,005 -24,600 -7.29 8,727 -19.19 0.0881
2018-02-09 2017-12-31 13F CORNING COM 219350105 337,605 14,780 4.58 10,800 11.81 0.1052
2017-11-14 2017-09-30 13F CORNING COM 219350105 322,825 94,610 41.46 9,659 40.84 0.1154
2017-08-02 2017-06-30 13F CORNING COM 219350105 228,215 -1,500 -0.65 6,858 10.58 0.0950
2017-05-10 2017-03-31 13F CORNING COM 219350105 229,715 -5,400 -2.30 6,202 8.69 0.0871
2017-02-10 2016-12-31 13F CORNING COM 219350105 235,115 -103,500 -30.57 5,706 -28.75 0.0840
2016-11-01 2016-09-30 13F CORNING COM 219350105 338,615 -40,400 -10.66 8,008 3.17 0.1216
2016-08-15 2016-06-30 13F CORNING COM 219350105 379,015 77,300 25.62 7,762 23.15 0.1090
2016-05-16 2016-03-31 13F CORNING COM 219350105 301,715 -18,900 -5.89 6,303 7.54 0.0820
2016-02-12 2015-12-31 13F CORNING COM 219350105 320,615 -14,800 -4.41 5,861 2.07 0.0780
2015-11-20 2015-09-30 13F CORNING COM 219350105 335,415 -23,300 -6.50 5,742 -30.19 0.0805
2015-02-11 2014-12-31 13F CORNING COM 219350105 358,715 -600 -0.17 8,225 18.36 0.0969
2014-11-21 2014-09-30 13F CORNING COM 219350105 359,315 -9,800 -2.65 6,949 -14.23 0.0862
2014-08-07 2014-06-30 13F CORNING COM 219350105 369,115 -215,000 -36.81 8,102 -33.38 0.0980
2014-05-19 2014-03-31 13F CORNING COM 219350105 584,115 -37,800 -6.08 12,161 9.74 0.1540
2014-02-05 2013-12-31 13F CORNING COM 219350105 621,915 -35,600 -5.41 11,082 15.52 0.1363
2013-11-01 2013-09-30 13F CORNING COM 219350105 657,515 1,500 0.23 9,593 2.76 0.1229
2013-09-17 2013-06-30 13F CORNING COM 219350105 656,015 -5,000 -0.76 9,335 5.95 0.1273
2013-09-17 2013-03-31 13F CORNING COM 219350105 661,015 661,015 8,811 0.1262
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.