Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionBallast, Inc.
Latest Disclosed Ownership10,924 shares
Latest Disclosed Value $ 1,485,336
Ballast, Inc. ownership in GLW / Corning Incorporated

On May 15, 2026 - Ballast, Inc. filed a 13F-HR form disclosing ownership of 10,924 shares of Corning Incorporated (MX:GLW) valued at $1,485,336 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 10,924 shares of Corning Incorporated. This represents a change in shares of 0.00% 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)
2026-05-15 2026-03-31 13F CORNING COM 219350105 10,924 0 0.00 1,485 55.33 0.3435
2026-02-03 2025-12-31 13F CORNING COM 219350105 10,924 2 0.02 957 6.82 0.2239
2025-11-07 2025-09-30 13F CORNING COM 219350105 10,922 -750 -6.43 896 46.00 0.2171
2025-11-07 2025-06-30 13F/A-1 CORNING COM 219350105 11,672 0 0.00 614 14.79 0.1607
2025-05-12 2025-03-31 13F CORNING COM 219350105 11,672 0 0.00 534 -3.61 0.1512
2025-01-16 2024-12-31 13F CORNING COM 219350105 11,672 0 0.00 555 5.32 0.1586
2024-10-16 2024-09-30 13F CORNING COM 219350105 11,672 -14 -0.12 527 15.86 0.1495
2024-07-15 2024-06-30 13F CORNING COM 219350105 11,686 14 0.12 454 18.23 0.1397
2024-05-06 2024-03-31 13F CORNING COM 219350105 11,672 0 0.00 385 8.17 0.1216
2024-01-18 2023-12-31 13F CORNING COM 219350105 11,672 0 0.00 355 0.00 0.1225
2023-10-18 2023-09-30 13F CORNING COM 219350105 11,672 0 0.00 356 -12.99 0.1417
2023-07-19 2023-06-30 13F CORNING COM 219350105 11,672 0 0.00 409 -0.73 0.1565
2023-04-19 2023-03-31 13F CORNING COM 219350105 11,672 0 0.00 412 10.48 0.1690
2023-01-26 2022-12-31 13F CORNING COM 219350105 11,672 -999 -7.88 373 1.36 0.1630
2022-10-18 2022-09-30 13F CORNING INC COM COM 219350105 12,671 0 0.00 367 -8.02 0.1793
2022-07-14 2022-06-30 13F CORNING INC COM COM 219350105 12,671 -4 -0.03 399 -14.56 0.1860
2022-04-18 2022-03-31 13F CORNING INC COM COM 219350105 12,675 0 0.00 467 -0.85 0.1800
2022-01-18 2021-12-31 13F CORNING INC COM COM 219350105 12,675 0 0.00 471 1.95 0.1833
2021-11-12 2021-09-30 13F CORNING INC COM COM 219350105 12,675 0 0.00 462 -10.81 0.1947
2021-08-04 2021-06-30 13F CORNING INC COM COM 219350105 12,675 0 0.00 518 -5.99 0.2184
2021-05-05 2021-03-31 13F CORNING INC COM COM 219350105 12,675 0 0.00 551 20.83 0.2649
2021-01-21 2020-12-31 13F CORNING INC COM COM 219350105 12,675 0 0.00 456 11.22 0.2325
2020-10-14 2020-09-30 13F CORNING INC COM COM 219350105 12,675 -825 -6.11 410 17.48 0.2343
2020-08-11 2020-06-30 13F CORNING INC COM COM 219350105 13,500 0 0.00 349 25.99 0.2195
2020-04-17 2020-03-31 13F CORNING INC COM COM 219350105 13,500 0 0.00 277 -29.34 0.1968
2020-01-14 2019-12-31 13F CORNING INC COM COM 219350105 13,500 0 0.00 392 1.82 0.2165
2019-10-22 2019-09-30 13F CORNING INC COM COM 219350105 13,500 0 0.00 385 -14.06 0.2364
2019-07-26 2019-06-30 13F CORNING INC COM COM 219350105 13,500 0 0.00 448 0.45 0.2784
2019-04-30 2019-03-31 13F CORNING INC COM COM 219350105 13,500 0 0.00 446 9.31 0.2906
2019-02-01 2018-12-31 13F CORNING COM 219350105 13,500 0 0.00 408 -14.47 0.3134
2018-11-02 2018-09-30 13F CORNING COM 219350105 13,500 0 0.00 477 28.57 0.3266
2018-07-19 2018-06-30 13F CORNING COM 219350105 13,500 0 0.00 371 -1.33 0.2885
2018-05-11 2018-03-31 13F CORNING COM 219350105 13,500 0 0.00 376 -12.96 0.3000
2018-02-12 2017-12-31 13F CORNING COM 219350105 13,500 13,500 432 0.3647
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.