Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionChicago Capital, LLC
Latest Disclosed Ownership33,209 shares
Latest Disclosed Value $ 4,515,487
Chicago Capital, LLC reports 28.88% increase in ownership of GLW / Corning Incorporated

On April 23, 2026 - Chicago Capital, LLC filed a 13F-HR form disclosing ownership of 33,209 shares of Corning Incorporated (MX:GLW) valued at $4,515,487 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 25,767 shares of Corning Incorporated. This represents a change in shares of 28.88% 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)
2026-04-23 2026-03-31 13F CORNING COM 219350105 33,209 7,442 28.88 4,515 100.13 0.1218
2026-01-26 2025-12-31 13F CORNING COM 219350105 25,767 22,186 619.55 2,256 669.97 0.0557
2025-10-22 2025-09-30 13F CORNING COM 219350105 3,581 3,581 294 0.0072
2024-01-22 2023-12-31 13F CORNING COM 219350105 0 -9,373 -100.00 0 -100.00
2023-10-25 2023-09-30 13F CORNING COM 219350105 9,373 0 0.00 286 -13.11 0.0134
2023-07-20 2023-06-30 13F CORNING COM 219350105 9,373 200 2.18 328 1.55 0.0148
2023-04-18 2023-03-31 13F CORNING COM 219350105 9,173 0 0.00 324 10.62 0.0161
2023-01-20 2022-12-31 13F CORNING COM 219350105 9,173 0 0.00 293 9.77 0.0162
2022-10-14 2022-09-30 13F CORNING COM 219350105 9,173 0 0.00 266 -7.96 0.0154
2022-07-21 2022-06-30 13F CORNING COM 219350105 9,173 0 0.00 289 -14.75 0.0160
2022-04-21 2022-03-31 13F CORNING COM 219350105 9,173 0 0.00 339 -0.88 0.0146
2022-01-20 2021-12-31 13F CORNING COM 219350105 9,173 0 0.00 342 2.09 0.0127
2021-10-28 2021-09-30 13F CORNING COM 219350105 9,173 0 0.00 335 -10.67 0.0127
2021-07-22 2021-06-30 13F CORNING COM 219350105 9,173 0 0.00 375 -6.02 0.0147
2021-04-13 2021-03-31 13F CORNING COM 219350105 9,173 -200 -2.13 399 18.40 0.0168
2021-01-25 2020-12-31 13F CORNING COM 219350105 9,373 100 1.08 337 11.96 0.0151
2020-10-13 2020-09-30 13F CORNING COM 219350105 9,273 100 1.09 301 26.47 0.0155
2020-07-29 2020-06-30 13F CORNING COM 219350105 9,173 9,173 238 0.0138
2020-04-21 2020-03-31 13F CORNING COM 219350105 0 -14,173 -100.00 0 -100.00
2020-01-14 2019-12-31 13F CORNING COM 219350105 14,173 0 0.00 413 2.23 0.0252
2019-10-28 2019-09-30 13F CORNING COMMON 219350105 14,173 0 0.00 404 -14.23 0.0271
2019-07-11 2019-06-30 13F CORNING COMMON 219350105 14,173 -25 -0.18 471 0.21 0.0301
2019-04-23 2019-03-31 13F CORNING COMMON 219350105 14,198 0 0.00 470 9.56 0.0319
2019-02-11 2018-12-31 13F CORNING COM 219350105 14,198 0 0.00 429 -14.37 0.0350
2018-11-02 2018-09-30 13F CORNING COM 219350105 14,198 0 0.00 501 28.13 0.0347
2018-07-19 2018-06-30 13F CORNING COM 219350105 14,198 173 1.23 391 0.00 0.0315
2018-05-09 2018-03-31 13F Corning COM 219350105 14,025 14,025 391 0.0522
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.