Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionFirst Manhattan Co
Latest Disclosed Ownership6,617 shares
Latest Disclosed Value $ 899,713
First Manhattan Co reports 3.76% increase in ownership of GLW / Corning Incorporated

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 6,617 shares of Corning Incorporated (MX:GLW) valued at $899,713 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,377 shares of Corning Incorporated. This represents a change in shares of 3.76% 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 6,617 240 3.76 900 61.11 0.0025
2026-02-17 2025-12-31 13F CORNING COM 219350105 6,377 2,049 47.34 558 57.18 0.0015
2025-11-14 2025-09-30 13F CORNING COM 219350105 4,328 0 0.00 355 56.39 0.0009
2025-08-14 2025-06-30 13F CORNING COM 219350105 4,328 4,328 228 0.0006
2025-05-15 2025-03-31 13F CORNING COM 219350105 0 -4,728 -100.00 0 -100.00
2025-02-14 2024-12-31 13F CORNING COM 219350105 4,728 -172 -3.51 225 1.36 0.0007
2024-11-14 2024-09-30 13F CORNING COM 219350105 4,900 4,900 221 0.0007
2024-08-15 2024-06-30 13F/A-1 CORNING COM 219350105 0 -6,098 -100.00 0 -100.00
2024-08-14 2024-06-30 13F CORNING COM 219350105 0 0
2024-05-15 2024-03-31 13F CORNING COM 219350105 6,098 -1,235 -16.84 201 -9.87 0.0007
2024-02-13 2023-12-31 13F CORNING COM 219350105 7,333 -602 -7.59 223 -7.47 0.0008
2023-11-14 2023-09-30 13F CORNING COM 219350105 7,935 -1,726 -17.87 242 -28.70 0.0009
2023-08-14 2023-06-30 13F CORNING COM 219350105 9,661 -3,000 -23.69 339 -24.22 0.0012
2023-05-15 2023-03-31 13F CORNING COM 219350105 12,661 -400 -3.06 447 6.95 0.0017
2023-02-14 2022-12-31 13F CORNING COM 219350105 13,061 -5,800 -30.75 417 -23.77 0.0015
2022-11-14 2022-09-30 13F CORNING COM 219350105 18,861 2,400 14.58 547 5.60 0.0023
2022-08-15 2022-06-30 13F CORNING COM 219350105 16,461 -150 -0.90 518 -15.50 0.0021
2022-05-16 2022-03-31 13F CORNING COM 219350105 16,611 0 0.00 613 -0.81 0.0020
2022-02-14 2021-12-31 13F CORNING COM 219350105 16,611 3,420 25.93 618 28.48 0.0020
2021-11-15 2021-09-30 13F CORNING COM 219350105 13,191 -22 -0.17 481 -10.93 0.0018
2021-08-16 2021-06-30 13F CORNING COM 219350105 13,213 22 0.17 540 -5.76 0.0020
2021-05-14 2021-03-31 13F CORNING COM 219350105 13,191 150 1.15 573 22.17 0.0025
2021-02-16 2020-12-31 13F CORNING COM 219350105 13,041 1,400 12.03 469 24.40 0.0022
2020-11-12 2020-09-30 13F CORNING COMMON 219350105 11,641 0 0.00 377 25.25 0.0019
2020-08-14 2020-06-30 13F CORNING COMMON 219350105 11,641 -505 -4.16 301 20.88 0.0017
2020-05-06 2020-03-31 13F CORNING COMMON 219350105 12,146 -745 -5.78 249 -33.60 0.0016
2020-02-13 2019-12-31 13F CORNING COMMON 219350105 12,891 721 5.92 375 8.07 0.0019
2019-11-13 2019-09-30 13F CORNING COMMON 219350105 12,170 2,829 30.29 347 11.94 0.0019
2019-08-16 2019-06-30 13F CORNING COMMON 219350105 9,341 -1,330 -12.46 310 -12.18 0.0017
2019-04-12 2019-03-31 13F CORNING COMMON 219350105 10,671 726 7.30 353 17.67 0.0020
2019-01-30 2018-12-31 13F CORNING COMMON 219350105 9,945 0 0.00 300 -14.53 0.0019
2018-10-15 2018-09-30 13F CORNING COMMON 219350105 9,945 0 0.00 351 28.57 0.0019
2018-08-01 2018-06-30 13F CORNING COMMON 219350105 9,945 -590 -5.60 273 -6.83 0.0016
2018-04-20 2018-03-31 13F CORNING COMMON 219350105 10,535 -6,235 -37.18 293 -45.34 0.0017
2018-01-22 2017-12-31 13F CORNING COMMON 219350105 16,770 -245 -1.44 536 5.30 0.0029
2017-10-25 2017-09-30 13F CORNING COMMON 219350105 17,015 0 0.00 509 -0.39 0.0029
2017-08-10 2017-06-30 13F/A-2 CORNING COMMON 219350105 17,015 0 0.00 511 11.33 0.0030
2017-08-01 2017-06-30 13F/A-1 CORNING COMMON 219350105 17,015 0 511 0.0030
2017-07-28 2017-06-30 13F CORNING COMMON 219350105 17,015 0 511
2017-04-25 2017-03-31 13F/A-1 CORNING COMMON 219350105 17,015 9,393 123.24 459 149.46 0.0027
2017-04-24 2017-03-31 13F CORNING COMMON 219350105 7,622 180
2017-01-25 2016-12-31 13F CORNING COMMON 219350105 7,622 0 0.00 184 2.22 0.0011
2016-10-20 2016-09-30 13F CORNING COMMON 219350105 7,622 0 0.00 180 15.38 0.0011
2016-07-14 2016-06-30 13F CORNING COMMON 219350105 7,622 200 2.69 156 0.65 0.0010
2016-04-22 2016-03-31 13F CORNING COMMON 219350105 7,422 -1,500 -16.81 155 -4.91 0.0010
2016-01-20 2015-12-31 13F CORNING COMMON 219350105 8,922 1,501 20.23 163 28.35 0.0010
2015-10-26 2015-09-30 13F CORNING COMMON 219350105 7,421 -1 -0.01 127 -13.01 0.0008
2015-07-17 2015-06-30 13F CORNING COMMON 219350105 7,422 197 2.73 146 -10.43 0.0009
2015-04-30 2015-03-31 13F CORNING COMMON 219350105 7,225 0 0.00 163 -1.21 0.0009
2015-01-20 2014-12-31 13F CORNING COMMON 219350105 7,225 1,600 28.44 165 52.78 0.0009
2014-10-23 2014-09-30 13F CORNING COMMON 219350105 5,625 -409 -6.78 108 -18.18 0.0006
2014-08-14 2014-06-30 13F/A-1 CORNING COMMON 219350105 6,034 -1 -0.02 132 5.60 0.0008
2014-05-16 2014-03-31 13F CORNING COMMON 219350105 6,035 -1,134 -15.82 125 -1.57 0.0008
2014-02-04 2013-12-31 13F CORNING COMMON 219350105 7,169 3,369 88.66 127 130.91 0.0008
2013-10-29 2013-09-30 13F CORNING COMMON 219350105 3,800 1,800 90.00 55 83.33 0.0004
2013-08-13 2013-06-30 13F CORNING COMMON 219350105 2,000 2,000 30 0.0002
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.