Corning Incorporated
US ˙ NYSE ˙ US2193501051

SecurityGLW / Corning Incorporated
InstitutionWetherby Asset Management Inc
Latest Disclosed Ownership20,749 shares
Latest Disclosed Value $ 1,702,041
Wetherby Asset Management Inc reports 3.77% increase in ownership of GLW / Corning Incorporated

On November 14, 2025 - Wetherby Asset Management Inc filed a 13F-HR form disclosing ownership of 20,749 shares of Corning Incorporated (US:GLW) valued at $1,702,040 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 19,995 shares of Corning Incorporated. This represents a change in shares of 3.77% during the quarter. The current value of the position is $3,684,607 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2025-11-14 2025-09-30 13F CORNING COM 219350105 20,749 754 3.77 1,702 61.94 0.0695
2025-08-14 2025-06-30 13F CORNING COM 219350105 19,995 -1,237 -5.83 1,052 4.27 0.0468
2025-02-14 2024-12-31 13F CORNING COM 219350105 21,232 -1,503 -6.61 1,009 -1.75 0.0484
2024-11-14 2024-09-30 13F CORNING COM 219350105 22,735 389 1.74 1,026 18.20 0.0469
2024-08-14 2024-06-30 13F CORNING COM 219350105 22,346 -146 -0.65 868 17.14 0.0409
2024-05-15 2024-03-31 13F CORNING COM 219350105 22,492 82 0.37 741 8.65 0.0353
2024-02-14 2023-12-31 13F CORNING COM 219350105 22,410 1,945 9.50 682 9.47 0.0355
2023-11-14 2023-09-30 13F CORNING COM 219350105 20,465 -188 -0.91 624 -13.83 0.0354
2023-08-14 2023-06-30 13F CORNING COM 219350105 20,653 -1,579 -7.10 724 -7.78 0.0390
2023-05-12 2023-03-31 13F CORNING COM 219350105 22,232 202 0.92 784 11.52 0.0459
2023-02-14 2022-12-31 13F CORNING COM 219350105 22,030 -813 -3.56 704 6.03 0.0452
2022-11-14 2022-09-30 13F CORNING COM 219350105 22,843 -21 -0.09 663 -7.92 0.0467
2022-08-15 2022-06-30 13F CORNING COM 219350105 22,864 142 0.62 720 -14.18 0.0491
2022-05-16 2022-03-31 13F CORNING COM 219350105 22,722 382 1.71 839 0.84 0.0481
2022-02-14 2021-12-31 13F CORNING COM 219350105 22,340 -354 -1.56 832 0.48 0.0467
2021-11-15 2021-09-30 13F CORNING COM 219350105 22,694 420 1.89 828 -9.11 0.0511
2021-08-16 2021-06-30 13F CORNING COM 219350105 22,274 3,685 19.82 911 12.61 0.0556
2021-05-14 2021-03-31 13F CORNING COM 219350105 18,589 -3,286 -15.02 809 2.66 0.0617
2021-02-11 2020-12-31 13F CORNING COM 219350105 21,875 21,668 10,467.63 788 11,157.14 0.0534
2020-12-16 2020-09-30 13F/A-01 CORNING COM 219350105 18,993 -2,690 616 0.0565
2020-12-16 2020-09-30 13F/A-02 CORNING COM 219350105 207 -21,476 -99.05 7 -98.75 0.0210
2020-11-13 2020-09-30 13F CORNING COM 219350105 23,031 1,348 746 47,452.1503
2020-08-14 2020-06-30 13F CORNING COM 219350105 21,683 -2,371 -9.86 562 13.77 0.0533
2020-05-06 2020-03-31 13F CORNING COM 219350105 24,054 2,817 13.26 494 -20.06 0.0555
2020-01-28 2019-12-31 13F CORNING COM 219350105 21,237 111 0.53 618 2.66 0.0609
2019-10-31 2019-09-30 13F CORNING COM 219350105 21,126 -8,566 -28.85 602 -39.01 0.0629
2019-07-25 2019-06-30 13F CORNING COM 219350105 29,692 7,153 31.74 987 32.31 0.1080
2019-07-25 2019-03-31 13F/A-1 CORNING COM 219350105 22,539 -345 -1.51 746 7.80 0.0929
2019-05-09 2019-03-31 13F CORNING COM 219350105 22,539 -345 746
2019-01-30 2018-12-31 13F CORNING COM 219350105 22,884 934 4.26 692 -10.59 0.0979
2018-11-07 2018-09-30 13F CORNING COM 219350105 21,950 460 2.14 774 30.96 0.0956
2018-07-24 2018-06-30 13F CORNING COM 219350105 21,490 -252 -1.16 591 -2.48 0.0800
2018-05-04 2018-03-31 13F CORNING COM 219350105 21,742 -742 -3.30 606 -15.72 0.0836
2018-02-09 2017-12-31 13F CORNING COM 219350105 22,484 990 4.61 719 11.82 0.0998
2017-11-13 2017-09-30 13F CORNING COM 219350105 21,494 251 1.18 643 0.78 0.0956
2017-08-01 2017-06-30 13F CORNING COM 219350105 21,243 1,930 9.99 638 22.22 0.1085
2017-04-27 2017-03-31 13F CORNING COM 219350105 19,313 381 2.01 522 13.73 0.0939
2017-02-08 2016-12-31 13F CORNING COM 219350105 18,932 -1,002 -5.03 459 -2.55 0.0899
2016-11-14 2016-09-30 13F CORNING COM 219350105 19,934 543 2.80 471 18.64 0.0953
2016-08-10 2016-06-30 13F CORNING COM 219350105 19,391 -157 -0.80 397 -2.93 0.0880
2016-05-10 2016-03-31 13F CORNING COM 219350105 19,548 591 3.12 409 18.21 0.0964
2016-02-08 2015-12-31 13F CORNING COM 219350105 18,957 935 5.19 346 12.34 0.0830
2015-11-12 2015-09-30 13F CORNING COM 219350105 18,022 1,660 10.15 308 -4.64 0.0789
2015-08-12 2015-06-30 13F CORNING COM 219350105 16,362 -763 -4.46 323 -16.75 0.0776
2015-05-08 2015-03-31 13F CORNING COM 219350105 17,125 424 2.54 388 1.31 0.0945
2015-02-12 2014-12-31 13F CORNING COM 219350105 16,701 1,241 8.03 383 28.09 0.0963
2014-11-03 2014-09-30 13F CORNING COM 219350105 15,460 367 2.43 299 -9.67 0.0834
2014-08-01 2014-06-30 13F CORNING COM 219350105 15,093 -252 -1.64 331 3.44 0.0934
2014-05-05 2014-03-31 13F/A-1 CORNING COM 219350105 15,345 320 2.13 320 19.85 0.0917
2014-04-30 2014-03-31 13F CORNING COM 219350105 15,345 320
2014-01-29 2013-12-31 13F CORNING COM 219350105 15,025 475 3.26 267 25.35 0.0761
2013-10-29 2013-09-30 13F CORNING COM 219350105 14,550 169 1.18 213 3.90 0.0665
2013-07-24 2013-06-30 13F CORNING COM 219350105 14,381 14,381 205 0.0714
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.