Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionWeatherly Asset Management L. P.
Latest Disclosed Ownership73,467 shares
Latest Disclosed Value $ 9,989,277
Weatherly Asset Management L. P. reports 3.05% decrease in ownership of GLW / Corning Incorporated

On April 15, 2026 - Weatherly Asset Management L. P. filed a 13F-HR form disclosing ownership of 73,467 shares of Corning Incorporated (MX:GLW) valued at $9,989,277 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 75,780 shares of Corning Incorporated. This represents a change in shares of -3.05% 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)
2026-04-15 2026-03-31 13F CORNING COMMON 219350105 73,467 -2,313 -3.05 9,989 50.55 0.8079
2026-01-16 2025-12-31 13F CORNING COMMON 219350105 75,780 3,086 4.25 6,635 11.27 0.5106
2025-10-16 2025-09-30 13F CORNING COMMON 219350105 72,694 3,502 5.06 5,963 63.91 0.4912
2025-07-11 2025-06-30 13F CORNING COMMON 219350105 69,192 12,448 21.94 3,639 40.08 0.3101
2025-05-01 2025-03-31 13F CORNING COMMON 219350105 56,744 7,132 14.38 2,598 10.18 0.2329
2025-01-29 2024-12-31 13F CORNING COMMON 219350105 49,612 862 1.77 2,358 7.09 0.2092
2024-10-29 2024-09-30 13F CORNING COMMON 219350105 48,750 13,392 37.88 2,201 60.31 0.1929
2024-07-31 2024-06-30 13F CORNING COMMON 219350105 35,358 -948 -2.61 1,374 14.80 0.1258
2024-04-19 2024-03-31 13F CORNING COMMON 219350105 36,306 433 1.21 1,197 9.52 0.1157
2024-02-01 2023-12-31 13F CORNING COMMON 219350105 35,873 177 0.50 1,092 0.46 0.1177
2023-10-10 2023-09-30 13F CORNING COMMON 219350105 35,696 -1,627 -4.36 1,088 -16.83 0.1299
2023-07-21 2023-06-30 13F CORNING COMMON 219350105 37,323 428 1.16 1,308 0.46 0.1526
2023-04-13 2023-03-31 13F CORNING COMMON 219350105 36,895 -55 -0.15 1,302 10.25 0.1689
2023-01-11 2022-12-31 13F CORNING COMMON 219350105 36,950 -7,157 -16.23 1,180 -7.81 0.1611
2022-10-17 2022-09-30 13F CORNING COMMON 219350105 44,107 3 0.01 1,280 -7.91 0.1839
2022-07-18 2022-06-30 13F CORNING COMMON 219350105 44,104 1,983 4.71 1,390 -10.61 0.1936
2022-05-06 2022-03-31 13F CORNING COMMON 219350105 42,121 5,612 15.37 1,555 14.42 0.1819
2022-01-28 2021-12-31 13F CORNING COMMON 219350105 36,509 902 2.53 1,359 4.62 0.1507
2021-11-05 2021-09-30 13F CORNING COMMON 219350105 35,607 6,625 22.86 1,299 9.62 0.1581
2021-08-12 2021-06-30 13F CORNING COMMON 219350105 28,982 2 0.01 1,185 -6.03 0.1494
2021-05-05 2021-03-31 13F CORNING COMMON 219350105 28,980 -199 -0.68 1,261 20.10 0.1749
2021-02-02 2020-12-31 13F CORNING COMMON 219350105 29,179 -474 -1.60 1,050 9.26 0.1509
2020-10-30 2020-09-30 13F CORNING COMMON 219350105 29,653 3 0.01 961 25.13 0.1551
2020-07-29 2020-06-30 13F CORNING COMMON 219350105 29,650 -98 -0.33 768 25.70 0.1358
2020-05-01 2020-03-31 13F CORNING COMMON 219350105 29,748 -777 -2.55 611 -31.27 0.1336
2020-01-23 2019-12-31 13F CORNING COMMON 219350105 30,525 -247 -0.80 889 1.25 0.1698
2019-11-07 2019-09-30 13F CORNING COMMON 219350105 30,772 5,081 19.78 878 2.81 0.1871
2019-07-31 2019-06-30 13F CORNING COMMON 219350105 25,691 355 1.40 854 1.79 0.1702
2019-05-01 2019-03-31 13F CORNING COMMON 219350105 25,336 -225 -0.88 839 8.68 0.1714
2019-02-11 2018-12-31 13F CORNING COMMON 219350105 25,561 200 0.79 772 -13.74 0.1828
2018-11-08 2018-09-30 13F CORNING COMMON 219350105 25,361 0 0.00 895 28.22 0.1837
2018-07-31 2018-06-30 13F CORNING COMMON 219350105 25,361 500 2.01 698 0.72 0.1629
2018-05-07 2018-03-31 13F CORNING COMMON 219350105 24,861 3,650 17.21 693 2.06 0.1643
2018-01-30 2017-12-31 13F CORNING COMMON 219350105 21,211 -234 -1.09 679 5.76 0.1641
2017-10-20 2017-09-30 13F CORNING COMMON 219350105 21,445 -188 -0.87 642 -1.23 0.1703
2017-07-27 2017-06-30 13F CORNING COMMON 219350105 21,633 -325 -1.48 650 9.61 0.1830
2017-04-28 2017-03-31 13F CORNING COMMON 219350105 21,958 0 0.00 593 11.26 0.1752
2017-02-14 2016-12-31 13F CORNING COMMON 219350105 21,958 -350 -1.57 533 0.95 0.1697
2016-10-31 2016-09-30 13F CORNING COMMON 219350105 22,308 50 0.22 528 15.79 0.1751
2016-08-06 2016-06-30 13F/A-1 CORNING COMMON 219350105 22,258 2,119 10.52 456 8.57 0.1505
2016-08-05 2016-06-30 13F CORNING COMMON 219350105 1,683 -18,456 430 0.1832
2016-04-21 2016-03-31 13F CORNING COMMON 219350105 20,139 3,210 18.96 420 35.92 0.1452
2016-02-09 2015-12-31 13F CORNING COMMON 219350105 16,929 2,510 17.41 309 25.61 0.1093
2015-11-05 2015-09-30 13F/A-1 CORNING INC COM COMMON 219350105 14,419 14,419 0.00 246 0.0994
2015-10-15 2015-09-30 13F CORNING INC COM COMMON 219350105 14,419 14,419 246 0.0996
2014-10-03 2014-09-30 13F CORNING INC COM COMMON 219350105 0 -4,695 -100.00 0 -100.00
2014-07-03 2014-06-30 13F/A-1 CORNING INC COM COMMON 219350105 4,695 4,695 103 0.0431
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.