Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionSchroder Investment Management Group
Latest Disclosed Ownership544,649 shares
Latest Disclosed Value $ 74,055,925
Schroder Investment Management Group reports 6.52% increase in ownership of GLW / Corning Incorporated

On May 14, 2026 - Schroder Investment Management Group filed a 13F-HR form disclosing ownership of 544,649 shares of Corning Incorporated (MX:GLW) valued at $74,055,925 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 511,325 shares of Corning Incorporated. This represents a change in shares of 6.52% 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)
2026-05-14 2026-03-31 13F CORNING COM 219350105 544,649 33,324 6.52 74,056 65.41 0.0120
2026-02-13 2025-12-31 13F CORNING COM 219350105 511,325 -57,318 -10.08 44,772 -4.02 0.0339
2025-11-13 2025-09-30 13F CORNING COM 219350105 568,643 22,236 4.07 46,646 62.33 0.0365
2025-08-13 2025-06-30 13F CORNING COM 219350105 546,407 472,365 637.97 28,736 747.89 0.0243
2025-05-13 2025-03-31 13F CORNING COM 219350105 74,042 -15,343 -17.17 3,390 -20.20 0.0034
2025-02-12 2024-12-31 13F CORNING COM 219350105 89,385 -5,264 -5.56 4,248 -0.61 0.0041
2024-11-13 2024-09-30 13F CORNING COM 219350105 94,649 5,464 6.13 4,273 23.35 0.0044
2024-08-12 2024-06-30 13F CORNING COM 219350105 89,185 20,459 29.77 3,465 52.94 0.0038
2024-05-14 2024-03-31 13F CORNING COM 219350105 68,726 879 1.30 2,265 9.69 0.0027
2024-02-14 2023-12-31 13F CORNING COM 219350105 67,847 -1,212 -1.76 2,066 -1.85 0.0027
2023-11-14 2023-09-30 13F CORNING COM 219350105 69,059 -730 -1.05 2,104 -13.95 0.0031
2023-08-11 2023-06-30 13F CORNING COM 219350105 69,789 -9,703 -12.21 2,445 -12.80 0.0035
2023-05-11 2023-03-31 13F CORNING COM 219350105 79,492 -15,992 -16.75 2,804 -8.04 0.0042
2023-02-10 2022-12-31 13F CORNING COM 219350105 95,484 5,920 6.61 3,050 17.31 0.0048
2022-11-14 2022-09-30 13F CORNING COM 219350105 89,564 -4,627 -4.91 2,599 -14.79 0.0043
2022-08-11 2022-06-30 13F CORNING COM 219350105 94,191 13,171 16.26 3,050 0.16 0.0046
2022-05-16 2022-03-31 13F CORNING COM 219350105 81,020 15,894 24.40 3,045 25.57 0.0040
2022-02-14 2021-12-31 13F Corning COM 219350105 65,126 -1,366 -2.05 2,425 -0.08 0.0032
2021-11-12 2021-09-30 13F CORNING INCORPORATED USD0.50 COM 219350105 66,492 -7,127 -9.68 2,427 -19.37 0.0037
2021-08-13 2021-06-30 13F CORNING INCORPORATED USD0.50 COM 219350105 73,619 3,893 5.58 3,010 -0.79 0.0038
2021-05-28 2021-03-31 13F/A-1 CORNING INCORPORATED USD0.50 COM 219350105 69,726 24,459 54.03 3,034 303,300.00 0.0039
2021-05-17 2021-03-31 13F CORNING INCORPORATED USD0.50 COM 219350105 69,726 24,459 3,034 0.0039
2021-02-24 2020-12-31 13F/A-1 CORNING INCORPORATED USD0.50 COM 219350105 45,267 6,905 18.00 2 -99.92 0.0023
2021-02-16 2020-12-31 13F CORNING INCORPORATED USD0.50 COM 219350105 45,267 6,905 2 0.0023
2020-11-13 2020-09-30 13F CORNING INCORPORATED USD0.50 COM 219350105 38,362 1,174 3.16 1,258 30.63 0.0020
2020-08-13 2020-06-30 13F CORNING INCORPORATED USD0.50 COM 219350105 37,188 16,883 83.15 963 140.75 0.0017
2020-05-15 2020-03-31 13F CORNING INCORPORATED USD0.50 COM 219350105 20,305 14,421 245.09 400 133.92 0.0009
2020-02-11 2019-12-31 13F CORNING INCORPORATED USD0.50 COM 219350105 5,884 5,884 171 0.0003
2018-05-11 2018-03-31 13F/A-1 CORNING INCORPORATED USD0.50 COM 219350105 0 -700 -100.00 0 -100.00
2018-02-09 2017-12-31 13F CORNING INCORPORATED USD0.50 COM 219350105 700 -1,508,580 -99.95 22 -99.95 0.0000
2017-11-09 2017-09-30 13F CORNING INCORPORATED USD0.50 COM 219350105 1,509,280 179,000 13.46 45,203 11.89 0.0785
2017-08-10 2017-06-30 13F CORNING INCORPORATED USD0.50 COM 219350105 1,330,280 1,253,100 1,623.61 40,400 1,799.39 0.0728
2017-05-18 2017-03-31 13F/A-1 CORNING INCORPORATED USD0.50 COM 219350105 77,180 -239,058 -75.59 2,127 -72.29 0.0038
2017-05-10 2017-03-31 13F CORNING INCORPORATED USD0.50 COM 219350105 77,180 -239,058 2,127 3,823.2695
2017-02-10 2016-12-31 13F CORNING INCORPORATED USD0.50 COM 219350105 316,238 314,038 14,274.45 7,675 14,659.62 0.0147
2016-11-09 2016-09-30 13F CORNING INCORPORATED USD0.50 COM 219350105 2,200 -336,490 -99.35 52 -99.25 0.0001
2016-08-08 2016-06-30 13F CORNING INCORPORATED USD0.50 COM 219350105 338,690 -1,249,945 -78.68 6,936 -79.05 0.0139
2016-05-10 2016-03-31 13F CORNING INCORPORATED USD0.50 COM 219350105 1,588,635 -1,184,292 -42.71 33,107 -34.69 0.0684
2016-02-10 2015-12-31 13F CORNING INCORPORATED USD0.50 COM 219350105 2,772,927 -3,649,078 -56.82 50,689 -53.90 0.1046
2015-11-13 2015-09-30 13F CORNING INCORPORATED USD0.50 COM 219350105 6,422,005 184,311 2.95 109,945 -10.53 0.2325
2015-08-10 2015-06-30 13F CORNING INCORPORATED USD0.50 COM 219350105 6,237,694 459,883 7.96 122,883 -6.47 0.2415
2015-05-12 2015-03-31 13F CORNING INCORPORATED USD0.50 COM 219350105 5,777,811 -412,986 -6.67 131,388 -7.44 0.2569
2015-02-18 2014-12-31 13F/A-1 CORNING INCORPORATED USD0.50 COM 219350105 6,190,797 -172,909 141,954 0.2784
2015-02-25 2014-12-31 13F/A-2 CORNING INCORPORATED USD0.50 COM 219350105 6,190,797 -172,909 -2.72 141,954 15.34 0.2786
2015-02-17 2014-12-31 13F CORNING INCORPORATED USD0.50 COM 219350105 6,190,797 -172,909 141,954 206,122.6294
2014-11-13 2014-09-30 13F Corning Inc Common StkUSD0.50 COM 219350105 6,363,706 1,236,735 24.12 123,074 9.36 0.1643
2014-08-13 2014-06-30 13F Corning Inc Common StkUSD0 50 COM 219350105 5,126,971 1,235,600 31.75 112,537 38.90 0.1398
2014-05-15 2014-03-31 13F Corning Inc Common StkUSD0.50 COM 219350105 3,891,371 -879,680 -18.44 81,018 -4.71 0.0913
2014-02-14 2013-12-31 13F Corning Inc Common StkUSD0.50 COM 219350105 4,771,051 -1,410,818 -22.82 85,020 -5.74 0.1062
2013-12-09 2013-09-30 13F/A-1 Corning Inc Common StkUSD0.50 COM 219350105 90,193,469 86,906,879 1,315,923 0.0396
2013-12-10 2013-09-30 13F/A-2 Corning Inc Common StkUSD0.50 COM 219350105 6,181,869 2,895,279 88.09 90,193 92.85 0.2190
2013-11-08 2013-09-30 13F Corning Inc Common StkUSD0.50 COM 219350105 6,181,869 2,895,279 90,193 222.5649
2013-08-12 2013-06-30 13F Corning Inc Common StkUSD0.50 COM 219350105 3,286,590 3,286,590 46,768 0.1237
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.