Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionPatten & Patten Inc/tn
Latest Disclosed Ownership17,904 shares
Latest Disclosed Value $ 2,434,407
Patten & Patten Inc/tn reports 0.61% increase in ownership of GLW / Corning Incorporated

On May 1, 2026 - Patten & Patten Inc/tn filed a 13F-HR form disclosing ownership of 17,904 shares of Corning Incorporated (MX:GLW) valued at $2,434,407 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 17,796 shares of Corning Incorporated. This represents a change in shares of 0.61% 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)
2026-05-01 2026-03-31 13F CORNING COM 219350105 17,904 108 0.61 2,434 56.23 0.1470
2026-02-03 2025-12-31 13F CORNING COM 219350105 17,796 100 0.57 1,558 7.37 0.0915
2025-10-31 2025-09-30 13F CORNING COM 219350105 17,696 68 0.39 1,452 56.53 0.0853
2025-07-28 2025-06-30 13F CORNING COM 219350105 17,628 0 0.00 927 14.87 0.0600
2025-05-07 2025-03-31 13F CORNING COM 219350105 17,628 0 0.00 807 -3.58 0.0540
2025-02-10 2024-12-31 13F CORNING COM 219350105 17,628 -150 -0.84 838 4.36 0.0553
2024-11-04 2024-09-30 13F CORNING COM 219350105 17,778 400 2.30 803 18.81 0.0533
2024-08-13 2024-06-30 13F CORNING COM 219350105 17,378 0 0.00 675 18.01 0.0472
2024-05-10 2024-03-31 13F CORNING COM 219350105 17,378 2,670 18.15 573 27.96 0.0408
2024-01-23 2023-12-31 13F Corning Inc Com COM 219350105 14,708 -7,755 -34.52 448 -34.65 0.0368
2023-10-27 2023-09-30 13F Corning Inc Com COM 219350105 22,463 -200 -0.88 684 -13.85 0.0601
2023-07-14 2023-06-30 13F Corning Inc Com COM 219350105 22,663 2,425 11.98 794 11.36 0.0656
2023-04-25 2023-03-31 13F Corning Inc Com COM 219350105 20,238 -425 -2.06 714 0.0628
2023-02-01 2022-12-31 13F Corning Inc Com COM 219350105 20,663 -325 -1.55 1 -100.00 0.0599
2022-10-19 2022-09-30 13F Corning Inc Com COM 219350105 20,988 -2,050 -8.90 609 -16.12 0.0578
2022-08-02 2022-06-30 13F Corning Inc Com COM 219350105 23,038 -500 -2.12 726 -16.46 0.0637
2022-04-25 2022-03-31 13F Corning Inc Com COM 219350105 23,538 -1,929 -7.57 869 -8.33 0.0634
2022-01-26 2021-12-31 13F Corning Inc Com COM 219350105 25,467 -1,936 -7.06 948 -5.20 0.0655
2021-10-22 2021-09-30 13F Corning Inc Com COM 219350105 27,403 -44 -0.16 1,000 -10.95 0.0761
2021-07-13 2021-06-30 13F Corning Inc Com COM 219350105 27,447 -1,146 -4.01 1,123 -9.73 0.0856
2021-04-23 2021-03-31 13F Corning Inc Com COM 219350105 28,593 -344 -1.19 1,244 19.39 0.1017
2021-01-19 2020-12-31 13F Corning Inc Com COM 219350105 28,937 -88 -0.30 1,042 10.73 0.0908
2020-10-08 2020-09-30 13F Corning Inc Com COM 219350105 29,025 2,374 8.91 941 36.38 0.0938
2020-07-21 2020-06-30 13F Corning Inc Com COM 219350105 26,651 3,261 13.94 690 43.75 0.0755
2020-04-16 2020-03-31 13F Corning Inc Com COM 219350105 23,390 1,175 5.29 480 -25.81 0.0633
2020-01-13 2019-12-31 13F Corning Inc Com COM 219350105 22,215 -2,552 -10.30 647 -8.36 0.0650
2019-10-15 2019-09-30 13F Corning Inc Com COM 219350105 24,767 4,303 21.03 706 3.82 0.0772
2019-07-11 2019-06-30 13F Corning Inc Com COM 219350105 20,464 3,903 23.57 680 24.09 0.0736
2019-04-23 2019-03-31 13F Corning Inc Com COM 219350105 16,561 1,775 12.00 548 22.60 0.0601
2019-01-17 2018-12-31 13F Corning Inc Com COM 219350105 14,786 5 0.03 447 -14.37 0.0548
2018-10-17 2018-09-30 13F Corning Inc Com COM 219350105 14,781 4 0.03 522 28.26 0.0517
2018-07-18 2018-06-30 13F Corning Inc Com COM 219350105 14,777 3 0.02 407 -1.21 0.0418
2018-04-20 2018-03-31 13F Corning Inc Com COM 219350105 14,774 484 3.39 412 -9.85 0.0421
2018-01-22 2017-12-31 13F Corning Inc Com COM 219350105 14,290 -175 -1.21 457 5.54 0.0457
2017-10-12 2017-09-30 13F Corning Inc Com COM 219350105 14,465 -1,697 -10.50 433 -10.91 0.0456
2017-07-19 2017-06-30 13F Corning Inc Com COM 219350105 16,162 -60 -0.37 486 10.96 0.0537
2017-04-19 2017-03-31 13F Corning Inc Com COM 219350105 16,222 500 3.18 438 14.66 0.0505
2017-01-27 2016-12-31 13F Corning Inc Com COM 219350105 15,722 4,800 43.95 382 48.06 0.0470
2016-10-12 2016-09-30 13F Corning Inc Com COM 219350105 10,922 -139 -1.26 258 13.66 0.0332
2016-07-07 2016-06-30 13F Corning Inc Com COM 219350105 11,061 139 1.27 227 -0.44 0.0314
2016-04-15 2016-03-31 13F Corning Inc Com COM 219350105 10,922 180 1.68 228 16.33 0.0326
2016-02-29 2015-12-31 13F Corning Inc Com COM 219350105 10,742 -500 -4.45 196 2.08 0.0271
2015-10-22 2015-09-30 13F Corning Inc Com COM 219350105 11,242 -1,950 -14.78 192 -26.15 0.0293
2015-08-31 2015-06-30 13F Corning Inc Com COM 219350105 13,192 -50 -0.38 260 -13.33 0.0377
2015-04-16 2015-03-31 13F Corning Inc Com COM 219350105 13,242 2,000 17.79 300 16.28 0.0432
2015-01-21 2014-12-31 13F Corning Inc Com COM 219350105 11,242 -3,668 -24.60 258 -10.42 0.0390
2014-10-14 2014-09-30 13F Corning Inc Com COM 219350105 14,910 268 1.83 288 -10.28 0.0458
2014-07-25 2014-06-30 13F Corning Inc Com COM 219350105 14,642 -22,822 -60.92 321 -58.85 0.0522
2014-04-24 2014-03-31 13F Corning Inc Com COM 219350105 37,464 -50 -0.13 780 16.77 0.1056
2014-01-15 2013-12-31 13F Corning Inc Com COM 219350105 37,514 -3,690 -8.96 668 11.15 0.0931
2013-10-15 2013-09-30 13F/A-1 Corning Inc Com COM 219350105 41,204 -3,299 -7.41 601 -5.06 0.0932
2013-10-15 2013-09-30 13F Corning Inc Com COM 219350105 44,503 633
2013-07-12 2013-06-30 13F Corning Inc Com COM 219350105 44,503 44,503 633 0.1037
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.